CN100505855C - Video display device and video display system - Google Patents

Video display device and video display system Download PDF

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Publication number
CN100505855C
CN100505855C CNB2006100886732A CN200610088673A CN100505855C CN 100505855 C CN100505855 C CN 100505855C CN B2006100886732 A CNB2006100886732 A CN B2006100886732A CN 200610088673 A CN200610088673 A CN 200610088673A CN 100505855 C CN100505855 C CN 100505855C
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China
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content
video display
display devices
thumbnail
thumbnail image
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CN1878279A (en
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小川裕树
赤松茂男
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Sharp Corp
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Sharp Corp
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Abstract

The invention provides a video display device. A central processing unit of a video display device displaying a thumbnail image formed based on a content executes a program including the steps of: deleting all thumbnail images corresponding to copy-never contents if a prescribed time period passed from the time when a thumbnail image transmitted from a video recording/reproducing device was stored; and deleting all thumbnail images corresponding to copy-never contents if a content to be viewed is selected using a contents selection image on which thumbnail images are displayed.

Description

Video display devices and video display system
This non-provisional application is based on Japanese patent application No. 2005-166765 and 2006-107532, and respectively at filing an application to Japan Patent office on June 7th, 2005 and on April 10th, 2006, wherein all contents are here by with reference to including.
Technical field
The image that the present invention relates to generate according to content is as video display devices and video display system that thumbnail shows, relates in particular to the image that will generate according to the conditional content of number of copy times as the thumbnail technique for displaying.
Background technology
Extensively learn in the prior art and have the broadcast program of video tv etc. in advance, the videograph regenerating unit of the function of when user's desired time, watching partially.In the past, the device that is recorded on the VHS tapes such as (Video HomeSystem) is a main flow, but used in recent years, the videograph regenerating unit of recording medium of the carried out random access of DVD (DigitalVersatile Disk) and hard disk etc. just becoming main flow.Because it compares high speed, big capacity and picture quality height with tape, so can preserve a large amount of contents on a videograph regenerating unit.Generally held standard picture quality is about 2 hours in the existing relatively VHS tape, for example 250GB (GB: gigabit=10 9) hard disk on standard picture quality can carry out about record more than 100 hours.That is, more than about 50 boxes that can store the VHS tape on the videograph regenerating unit.Further, in recent years,, for example construct network in the family, watch and the content that is recorded in the videograph regenerating unit on the network can be presented on the video display devices through network by a plurality of videograph regenerating units and video display devices.The user can be present in a plurality of videograph regenerating units of network from the video display devices operation.But, like this under the situation that has a large amount of contents, to the user find the content of wishing select till unusual time-consuming.Therefore, proposed to show the thumbnail as the guide look of representative image of the implication that can hold the content that can watch, user Ke Bian confirms these thumbnails, and the limit finds fast, select the technology of the content of wishing.Common this thumbnail passes through to generate downscaled images etc. from original contents in advance, and separates preservation with content, shows thereby can carry out high speed when showing.
The spy opens 2000-No. 350124 communiques and discloses when the video recording motion image signal, with motion image signal, but the rest image that dwindles of the content of special exercise picture signal is recorded in the recording medium, thereby can dwindles the moving image record regenerating unit that the index of rest image as recording medium uses.The spy drives the moving image record regenerating unit of putting down in writing in 2000-No. 350124 communiques and comprises record a video video recording portion on the recording medium of the motion image signal of being imported; Extract the extraction unit of rest image out with the sampling rate of regulation from motion image signal; Use the pixel value of the rest image of extraction unit extraction, the operational part of the evaluation of estimate of computing rest image; The test section of the maximum of the evaluation of estimate that detection calculations portion calculates; Dwindle rest image, generate the generating unit of representative image corresponding to the maximum of the detected evaluation of estimate of test section; The representative image that generating unit is generated is recorded in the recording portion in the recording medium; The portion of reading of the representative image of playback record portion record from recording medium; The representative image of at least more than one that read with the stickup portion of reading is to make the preparing department of representative image guide look.
According to the disclosed moving image record of this communique regenerating unit, owing to from the motion image signal of being imported, extract rest image out with predetermined sampling rate, the evaluation of estimate of using the pixel value of this rest image to come the computing rest image, dwindle rest image corresponding to the maximum of evaluation of estimate, and carry out record as representative image, so when the video tv program, can write down the representative image of the content that can hold this program.
But, under the situation of numerical data, owing to can make in a large number and do not have duplicating of deterioration, so from the popularizing fast of in recent years digital content, the importance of copyright protection improves.Therefore, content duplicate control be important.As the copy control information of content, with will " how many times all can duplicate (freely duplicating) ", the state that is embedded in the content of information such as " only reproducible once (duplicate once) ", " not reproducible (being sure not to duplicate) " sends.These copy control informations can freely be provided with by the content holder by each content.Embedded the content of these copy control informations if can not correctly authenticate, then can not regenerate, transmitted owing to after the enciphered data in addition, so the robber on the transfer path listens behavior also very difficult at transmitter side and receiver side.There is DTCP-IP (Digital Transmission Content Protection over InternetProtocol) etc. in the system of this protection copyright.It during digital for processing digital content, carries out the authentication of equipment, the exchange of key and the encryption of content on IP (Internet Protocol) network.Duplicate in the control this, as shown in figure 21, duplicating once content, to have write down time changing once on the videograph regenerating unit be the content of being sure not to duplicate, and can not copy to afterwards on other the videograph regenerating unit.At this moment, whether think that the part of the thumbnail image content that generates according to the content being sure not to duplicate becomes problem.Under the situation of a part of thumbnail image being thought content, can think and carry out duplicating of content by the preservation of thumbnail image.Therefore, need the restriction of the content-based control of consideration to show thumbnail.
The spy opens to disclose in 2002-No. 152667 communiques in video recording and only allows to realize thumbnail function, and do not relate to the recording/reproducing of copy limit under the situation of the resource of duplicating once.The recording/reproducing that the spy opens 2002-No. 152667 communiques record comprises: regeneration is stored in the reproducing unit of the video data on the recording medium with vision signal with reproduced control signal as video data; Dwindle specified image in the video data, and be stored in the storage part of recording medium.For the video that only allows by reproduced control signal once to duplicate, forbid the storage of downscaled images.For the video that duplicates that only allows by reproduced control signal once, expression stored the positional information of the position of specified image is stored on the recording medium in the video.
The recording/reproducing of putting down in writing according to this communique under the situation of the resource of video recording " freely duplicating ", can generate downscaled images in advance, during demonstration, uses it to show at a high speed.On the other hand, under the situation of resource of video recording " once reproducible ",, can avoid " violation copy limit " by not generating (preservation) this downscaled images.In addition,, also can preserve pointer, realize the thumbnail Presentation Function by preserving expression in the video as the position of the original image of thumbnail image even under the situation of resource of video recording " once reproducible ".
But, in the spy opens 2000-No. 350124 communiques, for copy limit without any consideration.The spy opens in the recording/reproducing of 2002-No. 152667 communiques record, for the content of duplicating once, only preserves pointer, and the video file (original content) of the position of representing by access pointer only comes the original image of displaying contents.At this moment, if the number of picture elements and the quantity of content own of original image are many, then in order to show thumbnail, data quantitative change to be processed is big.If the data quantitative change is big, then show thumbnail before institute's time spent long, or the burden that record display device bore is excessive.Therefore, for example, can reduce as downscaled images the data volume, the image that hope is shown as thumbnail is the image that generates according to content.
Summary of the invention
The purpose of this invention is to provide a kind of can be corresponding to copy limit, can show the video display devices and the video display system of the image that generates according to content simultaneously.
The video display devices of certain aspect of the present invention shows the thumbnail that generates according to content.This video display devices comprises: generating unit, and it generates thumbnail according to content; Storage part, it stores thumbnail; Display part, it shows the thumbnail of being stored; With deletion portion, it is the information of the service condition of content according to the rules, and deletion is stored in thumbnail in the storage part, wherein the information of the service condition of specified content be content duplicate the permission number of times.
According to the present invention, store the image that generates according to content, and the image of being stored is presented on the display part.This image information of the service condition of content is according to the rules deleted.For example, under the situation of the condition of the power supply that satisfies the condition of selecting image through the condition of official hour, for the rating content of having stored behind the image, blocks video display devices, deletion is according to duplicating the image that the content that allows the number of times to lack than predetermined times generates.Thus, under the situation of a part of thumbnail image being thought content, can prevent to store the duplicating of content of the form of thumbnail image.Therefore, can suppress to become problem by the generation copy limit of thumbnail image.As a result, can provide, can show the video display devices of the image that generates according to content simultaneously corresponding to duplicating qualification.
Further preferred, deletion portion is under the situation that has satisfied predetermined condition, and deletion is according to duplicating the thumbnail that the content that allows number of times to lack than pre-determined number generates.
According to the present invention, for example, under the situation of the condition of the power supply that has satisfied the condition of selecting image through the condition of official hour, for the rating content of having stored behind the image, blocked video display devices, to allow number of times be the image that zero content generates according to duplicating in deletion.Thus, under the situation of a part of thumbnail image being thought content, can prevent the duplicating of content of form of the storage of thumbnail image.Therefore, can suppress to become problem by the generation copy limit of thumbnail image.As a result, can provide, can show the video display devices of the image that generates according to content simultaneously corresponding to copy limit.
Further preferred, predetermined condition is to store behind the thumbnail through the condition of the scheduled time.
According to the present invention, stored behind the image through under the situation of condition of official hour satisfying, for example to duplicate and allow number of times be the image that zero content generates in deletion.Thus, under the situation of a part of thumbnail image being thought content, can prevent the duplicating of content of form of the storage of thumbnail image.Therefore, can suppress to become problem by the generation copy limit of thumbnail image.As a result, can provide, can show the video display devices of the image that generates according to content simultaneously corresponding to copy limit.
Further best, predetermined condition is to select the condition of thumbnail for the rating content.
According to the present invention, under the situation that satisfies the condition of selecting image for the rating content, for example deleting and duplicating the permission number of times is the image that zero content generates.Thus, under the situation of a part of thumbnail image being thought content, can prevent the duplicating of content of form of the storage of thumbnail image.Therefore, can suppress to become problem by the generation copy limit of thumbnail image.As a result, can provide, can show the video display devices of the image that generates according to content simultaneously corresponding to copy limit.
Further best, predetermined condition is the condition of blocking the power supply of video display devices.
According to the present invention, under the situation of the condition that has satisfied the power supply that blocks video display devices, for example deleting and duplicating the permission number of times is the image that zero content generates.Thus, under the situation of a part of thumbnail image being thought content, can prevent the duplicating of content of form of the storage of thumbnail image.Therefore, can suppress to become problem by the generation copy limit of thumbnail image.As a result, can provide, can show the video display devices of the image that generates according to content simultaneously corresponding to copy limit.
Further best, video display devices further comprises handling part, handles not delete according to the mode of duplicating the thumbnail that allows the content generation that number of times Duo than predetermined times.
According to the present invention, even allow the content of number of times more than 1 time to duplicate more than 1 time owing to for example duplicating, copy limit is also no problem, so can not delete the image that generates according to this content.Thus, can show the image that generates according to content simultaneously corresponding to copy limit.
Further better, storage part is made of volatile memory.
According to the present invention, storage part is made of volatile memory.Therefore,, then do not handle especially, get final product deleted image if block the power supply of video display devices.Thus, under the situation of a part of thumbnail image being thought content, can prevent the duplicating of content of form of the storage of thumbnail image.Therefore, can suppress to become problem by the generation copy limit of thumbnail image.As a result, can provide, can show the video display devices of the image that generates according to content simultaneously corresponding to copy limit.
Further better, video display devices further comprises the demonstration memory of the volatibility of preserving the data that send to display part.Storage part constitutes with memory by showing.
According to the present invention, send to the demonstration memory of volatibility of the data of display part by preservation, constitute storage part.Therefore,, then do not handle especially, get final product deleted image if the power supply of video display devices blocks.Thus, under the situation of a part of thumbnail image being thought content, can prevent the duplicating of content of form of the storage of thumbnail image.Therefore, can suppress to become problem by the generation copy limit of thumbnail image.As a result, can provide, can show the video display devices of the image that generates according to content simultaneously corresponding to copy limit.
Further preferably video display devices further comprises obtaining section, obtains the information of the service condition of content and specified content from the device different with video display devices.
According to the present invention, in the information of the service condition that obtains content and specified content from external device (ED) and generate the video display devices of image, can show the image that generates according to content simultaneously corresponding to copy limit.
The video display system of another aspect of the present invention comprises: video display devices; And generator, it connects video display devices through network, and the information of the service condition of content and specified content is offered video display devices.
According to the present invention, in the video display system that comprises video display devices and generator, can be corresponding to copy limit, show the image that generates according to content simultaneously, this generator connects video display devices through network, and the information of the service condition of content and specified content is offered video display devices.
From following detailed description of the present invention, will know and learn above-mentioned and other purposes, feature, aspect and advantage of the present invention in conjunction with corresponding accompanying drawing.
Description of drawings
Fig. 1 is the control block diagram (its 1) of video display devices in the video display system of expression the 1st embodiment of the present invention;
Fig. 2 is the control block diagram (its 2) of video display devices in the video display system of expression the 1st embodiment of the present invention;
Fig. 3 is the control block diagram of the video display system of the expression first embodiment of the present invention;
Fig. 4 is the flow chart of the control structure of the program carried out of the central processing department of the videograph regenerating unit in the video display system of expression the 1st embodiment of the present invention;
Fig. 5 is the flow chart (its 1) of the control structure of the program carried out of the central processing department of the video display devices in the video display system of expression the 1st embodiment of the present invention;
Fig. 6 is the flow chart (its 2) of the control structure of the program carried out of the central processing department of the video display devices in the video display system of expression the 1st embodiment of the present invention;
Fig. 7 is the figure of expression content choice picture;
Fig. 8 is the figure that the thumbnail under the situation of content regeneration is interrupted in expression;
Fig. 9 is the control block diagram of video display devices in the video display system of expression the 2nd embodiment of the present invention;
Figure 10 is the flow chart of the control structure of the program carried out of the central processing department of the videograph regenerating unit in the video display system of expression the 2nd embodiment of the present invention;
Figure 11 is the flow chart (its 1) of the control structure of the program carried out of the central processing department of the video display devices in the video display system of expression the 2nd embodiment of the present invention;
Figure 12 is the flow chart (its 2) of the control structure of the program carried out of the central processing department of the video display devices in the video display system of expression the 2nd embodiment of the present invention;
Figure 13 is the control block diagram of video display devices in the video display system of expression the 3rd embodiment of the present invention;
Figure 14 is the flow chart of the control structure of the program carried out of the central processing department of the video display devices in the video display system of expression the 3rd embodiment of the present invention;
Figure 15 is the flow chart of the control structure of the program carried out of the central processing department of the videograph regenerating unit in the video display system of expression the 4th embodiment of the present invention;
Figure 16 is the flow chart (its 1) of the control structure of the program carried out of the central processing department of the video display devices in the video display system of expression the 4th embodiment of the present invention;
Figure 17 is the flow chart (its 2) of the control structure of the program carried out of the central processing department of the video display devices in the video display system of expression the 4th embodiment of the present invention;
Figure 18 is the flow chart of the control structure of the program carried out of the central processing department of the videograph regenerating unit in the video display system of expression the 5th embodiment of the present invention;
Figure 19 is the flow chart (its 1) of the control structure of the program carried out of the central processing department of the video display devices in the video display system of expression the 5th embodiment of the present invention;
Figure 20 is the flow chart (its 2) of the control structure of the program carried out of the central processing department of the video display devices in the video display system of expression the 5th embodiment of the present invention;
Figure 21 is the figure of the notion of the existing content replication of expression.
Embodiment
Below, embodiments of the invention are described with reference to the accompanying drawings.In the following explanation same parts are added same mark.These titles are also identical with function.Therefore, do not repeat detailed description for these.
The 1st embodiment
With reference to figure 1, the video display system of present embodiment is described.The video display devices 100 that comprises in the video display system comprises central processing department 102, shows with memory 104, display part 106, sends Return Reception Dept. 108, storage part 110, thumbnail storage portion 112, thumbnail control part 114 and cryptographic processing portion 116.
Central processing department 102 carries out the control of video display devices 100 integral body.Show that the data that are kept at usefulness such as displaying contents on the display part 106 with memory 104 also deliver in the display part 106 successively.
Display part 106 shows the data of sending here with memory 104 from showing.Display part 106 for example is made of liquid crystal panel and control part etc. thereof.Send between the external device (ED) of Return Reception Dept. 108 and video display devices 100, exchange various information and content etc.
Storage part 110 memory contentss etc.Thumbnail storage portion 112 storage thumbnails.Thumbnail control part 114 under the management of central processing department 102 with thumbnail storage in thumbnail storage portion 112, or from thumbnail storage portion 112 deletion.The content that sends behind cryptographic processing portion 116 enabling decryption of encrypted and content recognition signal and thumbnail etc.
In video display devices shown in Figure 1 100, thumbnail storage portion 112 still also can separately use the zone of same memory to be used by storage part 110 and thumbnail storage portion 112 by with the storage part 110 of memory contents etc. or show with the different memory of memory 104 and constitute.In addition as shown in Figure 2, also can use a part that shows with memory 104, constitute thumbnail storage portion 112.
Show with memory 104, storage part 110 and thumbnail storage portion 112 and constitute by volatile memory.Therefore, if cut off the power supply of video display devices 100, then deletion is stored in the content that shows with in memory 104, storage part 110 and the thumbnail storage portion 112.
With reference to figure 3, further specify the video display system of present embodiment.In video display system, videograph regenerating units 200 (transmitter side) such as hard disk are through the network (for example in-home network) 300 of IP (Internet Protocol) etc. and link to each other with video display devices 100 (receiver side) such as LCD TV.
In the video display system of present embodiment, in order to handle the content of copyright protection, need carry out the device authentication of DTCP-IP etc. during connection between device.Therefore, between video display devices 100 and videograph regenerating unit 200, carry out the authentication of equipment.Send reception behind the content-encrypt with the copyright protection of exchange between video display devices 100 and the videograph regenerating unit 200.
After generating thumbnail, videograph regenerating unit 200 sends to video display devices 100.Show behind video display devices 100 received contents and the thumbnail.Send the video data of MPEG2-TS (Moving Picture Experts Group2-Transport Stream) to video display devices 100 from videograph regenerating unit 200.In addition, the form of the video data of transmission is not limited to this.
Videograph regenerating unit 200 comprises video record processing portion 202, central processing department 204, cryptographic processing portion 206, sends Return Reception Dept. 208, dish device 210 and thumbnail generating unit 212.
The video data that video record processing portion 202 will broadcast etc. is stored in the dish device 210.Reception duplicate content once and the situation of recording a video under, with this content by with after can not copy to the state recording of other devices in dish device 210.That is, with duplicate once content as the content record of being sure not to duplicate the dish device 210 in.
Central processing department 204 carries out the control of videograph regenerating unit 200 integral body.Cryptographic processing portion 206 encrypted contents or content identification information and thumbnail etc.Various information of exchange and content etc. between the external device (ED) of transmission Return Reception Dept. 208 and videograph regenerating unit 200.Dish device 210 record a plurality of video datas (content).
Thumbnail generating unit 212 generates the thumbnail image that is recorded in the content on the dish device 210.The thumbnail image that is generated is all or part of of copy control information, content regeneration time etc. of time on video recording date, content of title, content of downscaled images, content of representative image of the feature of this content of expression.In addition, the downscaled images of the representative image of content can be dwindled the image that the leading section of the data of MPEG2-TS grades and be generated, and also can generate by additive method.
With reference to figure 4, the control structure of the program that the central processing department 204 of videograph regenerating unit 200 is carried out is described in the video display system of present embodiment.
In step (below, step is abbreviated as S) 100, central processing department 204 judges whether to receive the thumbnail request signal from video display devices 100.Under receiving (among the S100 being), handle moving on to S102 from the situation of the thumbnail request signal of video display devices 100.If not (deny) then to handle turning back to S100 like this among the S100.
In S102, central processing department 204 generates the thumbnail image that is recorded in the content on the dish device 210.Thumbnail image generates in thumbnail generating unit 212.Among the S104, central processing department 204 sends to video display devices 100 with the thumbnail image that generated with the identifying information of content.After the identifying information of thumbnail image and content is encrypted by cryptographic processing portion 206, send in the video display devices 100 by sending Return Reception Dept. 208.
Among the S106, whether central processing department 204 is judged in addition also meaningful.(be) to handle turning back to S102 among the S106 under in addition also meaningful situation.If not (deny) to handle moving on to S108 like this among the S106.In addition, have under a plurality of situations, thumbnail image once can be connect once and send, or a plurality ofly send simultaneously interior.
Among the S108, central processing department 204 judges whether to have received the content regeneration request signal from video display devices 100.Under having received (among the S108 being), handle moving on to S110 from the situation of the content regeneration request signal of video display devices 100.If not (deny) then to handle turning back to S108 like this among the S108.
Among the S110, central processing department 204 sends to video display devices 100 with content.After content is encrypted by cryptographic processing portion 206, send to video display devices 100 by sending Return Reception Dept. 208.
With reference to figure 5 and Fig. 6, the control structure of the program that the central processing department 102 of video display devices 100 is carried out is described in the video display system of present embodiment.
Among the S200, central processing department 102 for example according to user's operation, sends to videograph regenerating unit 200 with the thumbnail request signal.The thumbnail request signal sends to videograph regenerating unit 200 by sending Return Reception Dept. 108.
Among the S202, central processing department 102 judges whether to have received thumbnail image and content identification information from videograph regenerating unit 200.(be) to handle moving on to S204 among the S202 under the situation that has received thumbnail image and content identification information.If not (deny) then to handle turning back to S202 like this among the S202.
Among the S204, central processing department 102 is preserved thumbnail image, preserves content identification information simultaneously.Thumbnail image in cryptographic processing portion 116 decrypted after, be kept in the thumbnail storage portion 112.Content identification information in cryptographic processing portion 116 decrypted after, be kept in the storage part 110.
Among the S206, the moment of central processing department 102 recorded and stored thumbnail images.The moment of preserving thumbnail image is recorded in the thumbnail control part 114.
Among the S208, whether central processing department 102 is judged in addition also meaningful.(be) to handle moving on to S202 among the S208 under in addition also meaningful situation.If not (deny) to handle moving on to S210 like this among the S208.
Among the S210, central processing department 102 utilizes in the thumbnail storage portion 112 content identification information of preserving in the thumbnail image preserved and the storage part 110, generate GUI (GraphicalUser Interface) picture that content choice is used, and be presented on the display part 106 of GUI picture as the content choice picture.
Among the S212, central processing department 102 judges from the moment of preserving thumbnail image whether passed through official hour.Rising under the situation of having passed through official hour in the moment of preserving thumbnail image (is) to handle moving on to S214 among the S212.If not (deny) to handle entering S216 like this among the S212.In addition, official hour is the time that is suitably defined in advance by device and system.Also can change official hour by the user.
Among the S214, the GUI picture that central processing department 102 deletions are used corresponding to all thumbnail images and the content choice of the content of being sure not to duplicate (duplicate and allow number of times than 1 content of also lacking).The deletion of thumbnail image and GUI picture is carried out in thumbnail control part 114.At this moment, not deleting corresponding to duplicating the permission number of times is the thumbnail image of the content more than 1 time.
In addition, except the content of being sure not to duplicate, also can delete the thumbnail image that allows the content that number of times also lacks than the number of times of wishing corresponding to duplicating, not delete corresponding to the thumbnail image that duplicates the content more than the number of times that allows number of times hope.In addition, also can delete all thumbnail images.
Among the S216, central processing department 102 judges whether to select the content of being watched by the user.As shown in Figure 7, the user uses the content choice picture that is presented on the display part 106 to come chosen content.In addition, the system of selection of content is not limited to this.
In the content choice picture of present embodiment, shown the information of 6 thumbnail images and content.In addition, the content choice picture is not limited to this.The user sees on the limit thumbnail images shown image and title, the time on video recording date on the display part 106, have or not the information of feature of the expression content of copy limit etc., and the limit moving cursor is selected the content of wishing.
Get back to Fig. 6, under the situation of having selected content (among the S216 be), handle moving on to S218.If not (deny) to handle moving on to S212 like this among the S216.Among the S218, central processing department 102 sends to videograph regenerating unit 200 with selected content regeneration request signal.The content regeneration request signal sends to videograph regenerating unit 200 by sending Return Reception Dept. 108.
The GUI picture that among the S220, central processing department 102 deletion is kept in the thumbnail image in the thumbnail storage portion 112, use corresponding to all thumbnail images and the content choice of the content of being sure not to duplicate.The deletion of thumbnail image and GUI picture is carried out in thumbnail control part 114.At this moment, not deleting corresponding to duplicating the permission number of times is the thumbnail image of the content more than 1 time.
In addition, except the content of being sure not to duplicate, also can delete the thumbnail image that allows the content that number of times also lacks than the number of times of wishing corresponding to duplicating, not delete corresponding to the thumbnail image that duplicates the content more than the number of times that allows number of times hope.In addition, also can delete all thumbnail images.
Among the S222, central processing department 102 judges whether to have received content from videograph regenerating unit 200.(be) to handle moving on to S224 among the S222 under the situation that has received content.If not (deny) to handle turning back to S222 like this among the S222.
Among the S224, central processing department 102 is presented at the content that is received on the display part 106.Content is presented on the display part 106 after deciphering by cryptographic processing portion 116.
According to above this structure and flow chart, the action of the video display system of present embodiment is described.
Operation by carrying out the user etc. sends to videograph regenerating unit 200 (S200) with the thumbnail request signal from video display devices 100.Received under the situation of thumbnail request signal (among the S100 being) at videograph regenerating unit 200 side joints, generated the thumbnail image (S102) of content, the thumbnail image that generated has been sent to video display devices 100 with the identifying information of content
(S104)。
(be) to repeat the generation (S102) of thumbnail image and the transmission (S104) of the identifying information of thumbnail image and content among the S106 under in addition also meaningful situation.
In video display devices 100 sides, under the situation that has received thumbnail image and content identification information (among the S202 be), thumbnail image is kept in the thumbnail storage portion 112, content identification information is kept at (S204) in the storage part 110.At this moment, in thumbnail control part 114 recorded and stored the moment of thumbnail image (S206).
(be) to repeat S202 processing afterwards among the S208 under in addition also meaningful situation.For example, repeat S202 processing afterwards up to having received all or displayable all thumbnail images on a picture.
Utilize the thumbnail image of reception like this and the identifying information of content, generate the GUI image that content choice is used, the GUI image is presented at (S210) in the display part 106.
Under this state, in the operation that does not have from the user, passed through official hour from the moment of preserving thumbnail image, for example under 10 minutes the situation (among the S212 being), the GUI picture (S214) that deletion is used corresponding to all thumbnail images and the content choice of the content of being sure not to duplicate.
Content displayed has been selected picture and selecting under the situation of content (among the S216 being) on by display part 106, and the content regeneration request signal is sent to videograph regenerating unit 200 (S218) from video display devices 100.
At this moment, owing to can carry out the correspondence of thumbnail image and original contents,, then send the pairing regeneration request signal of original contents if on the content choice picture, selected thumbnail image according to content identification information.
At this moment, we can say the GUI picture that does not need thumbnail image and content choice to use.Therefore, the GUI picture (S220) of having deleted in the thumbnail image that thumbnail storage portion 112 preserved, having used corresponding to all thumbnail images and the content choice of the content of being sure not to duplicate.
In videograph regenerating unit 200 sides, under having received (among the S108 being), the content of being asked is sent to video display devices 100 (S110) from the situation of the content regeneration request signal of video display devices 100.
In video display devices 100 sides, (be) to display the content in (S224) on the display part 106 among the S222 under the situation that has received content.Thus, the user watches content.
Afterwards, when regeneration stops and during regeneration ending etc.,, then repeat after the S100 and S200 processing afterwards if need the content choice picture once more.At this moment, for example, under the situation that the Halfway Stopping of content is regenerated, also can when next content choice picture shows, the scene that stops at last being presented on the display part 106 as thumbnail image as shown in Figure 8.At this moment, but the also positional information that stops of recorded content, and utilize the positional information of this record to generate the thumbnail image of this position by thumbnail generating unit 212.
As mentioned above, according to the video display system of present embodiment, at the thumbnail image that generates according to content under the situation of having passed through official hour apart from the moment of preserving and selected under the situation of thumbnail image deleted for regeneration (watching) content.Thus, can prevent to preserve the duplicating of content of the form of thumbnail image.Therefore, even the content of being sure not to duplicate, also having suppressed copy limit becomes problem, can show the thumbnail image that generates according to content.
In addition,, also can generate, show thumbnail as prior art, also can as present embodiment, under the situation that has satisfied predetermined condition, delete for the hard-core content of freely duplicating of number of copy times.
In addition, also can be after preserving thumbnail image during through official hour and when content regeneration beginning etc. when the content choice picture is extracted, delete the thumbnail image that is kept in the thumbnail storage portion 112 immediately.
The 2nd embodiment
Below, the 2nd embodiment of the present invention is described.Present embodiment in video display devices 100, generate thumbnail image aspect different with described first embodiment.For other structures, identical with described first embodiment.Function for these is also identical.Therefore, do not repeat detailed description here for these.
With reference to figure 9, the video display devices 100 of the video display system of present embodiment is described.As shown in Figure 9, video display devices 100 comprises thumbnail generating unit 118.Thumbnail generating unit 118 does not obtain thumbnail image from the outside.Thumbnail generating unit 118 generates the thumbnail image corresponding to this content according to through sending the content that Return Reception Dept. 108 is obtained.
With reference to Figure 10, the control structure of the program that the central processing department 204 of videograph regenerating unit 200 is carried out is described in the video display system of present embodiment.
Among the S300, central processing department 204 judges whether to have received the thumbnail request signal from video display devices 100.Under having received (among the S300 being), handle moving on to S302 from the situation of the thumbnail request signal of video display devices 100.If not (deny) then to handle turning back to S300 like this among the S300.
Among the S302, the tabulation that central processing department 204 will be recorded in the content on the dish device 210 sends to video display devices 100.The tabulation of content sends to video display devices 100 by sending Return Reception Dept. 208 after being encrypted by cryptographic processing portion 206.
Among the S304, central processing department 204 judges whether to have received from video display devices 100 the regeneration request signal of data of the fore-end of content.Under the situation of the regeneration request signal of the data of the fore-end that has received content (among the S304 being), handle moving on to S306.If not (deny) to handle moving on to S304 like this among the S304.
Among the S306, central processing department 204 sends to video display devices 100 with the data of the fore-end of content and the identifying information of content.After the identifying information of the data of the fore-end of content and content encrypted by cryptographic processing portion 206, send to video display devices 100 by sending Return Reception Dept. 208.At this moment, the data of the fore-end of content can minification or reduce bit rate after send.
Among the S308, whether central processing department 204 is judged in addition also meaningful.(be) to handle turning back to S306 among the S308 under in addition also meaningful situation.If not (deny) to handle moving on to S310 like this among the S308.In addition, having under the situation of a plurality of contents, also can send the data of the fore-end of a plurality of contents simultaneously.In addition, also can or reduce bit rate, and send the data of the fore-end of a plurality of contents simultaneously in minification.
Among the S310, central processing department 204 judges whether to have received the content regeneration request signal from video display devices 100.Under having received (among the S310 being), handle moving on to S312 from the situation of the content regeneration request signal of video display devices 100.If not (deny) to handle turning back to S310 like this among the S310.
Among the S312, central processing department 204 sends to video display devices 100 with content.After content is encrypted by cryptographic processing portion 206, send to video display devices 100 by sending Return Reception Dept. 208.
With reference to Figure 11 and Figure 12, the control structure of the program of illustrate in the video display system of present embodiment, the central processing department of video display devices 100 102 being carried out.
Among the S400, central processing department 102 for example according to user's operation, sends to videograph regenerating unit 200 with the thumbnail request signal.The thumbnail request signal sends to videograph regenerating unit 200 after sending Return Reception Dept. 108.
Among the S402, central processing department 102 is judged whether videograph regenerating unit 200 has received and is included contents list.(be) to handle moving on to S404 among the S402 under having received the situation of including contents list.If not (deny) to handle turning back to S402 like this among the S402.
Among the S404, central processing department 102 is according to the tabulation that is received, and the regeneration request signal of the data of the fore-end of the content of record on the dish device 210 of videograph regenerating unit 200 is sent to the videograph regenerating unit.
Among the S406, central processing department 102 judges whether to have received from videograph regenerating unit 200 data and the content identification information of the fore-end of content.Under the situation of the data of the fore-end that has received content and content identification information (among the S406 being), handle moving on to S408.If not (deny) to handle turning back to S406 like this among the S406.
Among the S408, central processing department 102 generates thumbnail image according to the data of the fore-end of the content that receives by transmission Return Reception Dept. 108, preserves the thumbnail image that is generated, and preserves content identification information.The data of the fore-end of content in cryptographic processing portion 116 decrypted after, generate thumbnail image.Content identification information in cryptographic processing portion 116 decrypted after, be kept in the storage part 110.
Among the S410, central processing department 102 recorded and stored the moment of thumbnail image.The moment of having preserved thumbnail image is recorded in the thumbnail control part 114.
Among the S412, whether central processing department 102 is judged in addition also meaningful.(be) to handle turning back to S406 among the S412 under in addition also meaningful situation.If not (deny) to handle moving on to S414 like this among the S412.
Among the S414, central processing department 102 utilizes in the thumbnail storage portion 112 content identification information of preserving in the thumbnail image preserved and the storage part 110, generate the GUI image that content choice is used, and be presented on the display part 106 of GUI picture as the content choice picture.
Among the S416, central processing department 102 judges from the moment of preserving thumbnail image whether passed through official hour.Rising under the situation of having passed through official hour in the moment of preserving thumbnail image (is) to handle moving on to S418 among the S416.If not (deny) to handle entering S420 like this among the S416.In addition, official hour is the time that is suitably defined in advance by device and system.Also can change official hour by the user.
Among the S418, the GUI picture that central processing department 102 deletions are used corresponding to all thumbnail images and the content choice of the content of being sure not to duplicate.The deletion of thumbnail image and GUI picture is carried out in thumbnail control part 114.
Among the S420, central processing department 102 judges whether to have selected the content of watching by the user.The user is shown in Figure 7 as the aforementioned, uses the content choice picture that is presented on the display part 106 to come chosen content.In addition, the system of selection of content is not limited to this.
(be) to handle moving on to S422 among the S420 under the situation of having selected content.If not (deny) to handle moving on to S416 like this among the S420.Among the S422, central processing department 102 sends to videograph regenerating unit 200 with selected content regeneration request signal.The content regeneration request signal is sent to videograph regenerating unit 200 by sending Return Reception Dept. 108.
The GUI picture that among the S424, central processing department 102 deletion is kept in the thumbnail image in the thumbnail storage portion 112, use corresponding to all thumbnail images and the content choice of the content of being sure not to duplicate.The deletion of thumbnail image and GUI picture is carried out in thumbnail control part 114.
Among the S426, central processing department 102 judges whether to have received content from videograph regenerating unit 210.(be) to handle moving on to S428 among the S426 under the situation that has received content.Not being under such situation (among the S426 not), handle turning back to S426.
Among the S428, central processing department 102 is presented at the content that is received on the display part 106.Content is presented on the display part 106 after deciphering by cryptographic processing portion 116.
According to as above such structure and flow chart, the action of the video display system of present embodiment is described.
Operation by carrying out the user etc. sends to videograph regenerating unit 200 (S400) with the thumbnail request signal from video display devices 100.Received under the situation of thumbnail request signal (among the S300 being) at videograph regenerating unit 200 side joints, the tabulation that is recorded in the content on the dish device 210 has been sent to video display devices 100 (S302) from videograph regenerating unit 200.
In video display devices 100 sides, under having received the situation of including contents list (among the S402 be), according to the tabulation that is received, the regeneration request signal of the data of the fore-end of the content that will write down on the dish device 210 of videograph regenerating unit 200 sends to videograph regenerating unit 200 (S404) from video display devices 100.In videograph regenerating unit 200 sides, under the situation of the regeneration request signal of the data of the fore-end that has received content (among the S304 being), the data of the fore-end of content and the identifying information of content are sent to video display devices 100 (S306) from videograph regenerating unit 200.
(be) to repeat the transmission (S306) of the identifying information of the data of fore-end of content and content among the S308 under in addition also meaningful situation.
In video display devices 100 sides, under the situation of the data of the fore-end that has received content and content identification information (among the S406 being), data according to the fore-end of content generate thumbnail image, preserve the thumbnail image that is generated, and preserve content identification information (S408).At this moment, be recorded in (S410) in the thumbnail control part 114 moment of having preserved thumbnail image.
(be) to repeat S406 processing afterwards among the S412 under in addition also meaningful situation.For example, generating all or before displayable all thumbnail images on the picture, repeating the processing after the S406.
The thumbnail image that utilization obtains like this and the identifying information of content generate the GUI picture that content choice is used, and the GUI picture is presented at (S414) in the display part 106.Under this state, in the operation that does not have from the user, passed through official hour from the moment of preserving thumbnail image, for example under 10 minutes the situation (among the S416 being), the GUI picture (S418) that deletion is used corresponding to all thumbnail images and the content choice of the content of being sure not to duplicate.
Content displayed has been selected picture and selecting under the situation of content (among the S420 being) on by display part 106, and the content regeneration request signal is sent to videograph regenerating unit 200 (S422) from video display devices 100.
At this moment, owing to can carry out the correspondence of thumbnail image and original contents,, then send the regeneration request signal corresponding with original content if on the content choice picture, selected thumbnail image according to content identification information.
At this moment, we can say the GUI picture that does not need thumbnail image and content choice to use.Therefore, the GUI picture (S424) of having deleted in the thumbnail image that thumbnail storage portion 112 preserved, having used corresponding to all thumbnail images and the content choice of the content of being sure not to duplicate.
In videograph regenerating unit 200 sides, under having received (among the S310 being), the content of being asked is sent to video display devices 100 (S312) from the situation of the content regeneration request signal of video display devices 100.
In video display devices 100 sides, (be) to display the content in (S426) on the display part 106 among the S426 under the situation that has received content.Thus, watch content by the user.Even constitute like this, also can obtain identical effect with described first embodiment.
The 3rd embodiment
Below, the 3rd embodiment of the present invention is described.In the present embodiment, the aspect of deletion thumbnail image is different with the 2nd embodiment with aforesaid the 1st embodiment when blocking the power supply of (off cuts off) video display devices 100.
For other structures, identical with the 2nd embodiment with described the 1st embodiment.Function at these is also identical.Therefore, do not repeat detailed explanation here to these.
With reference to Figure 13, the video display devices 100 of the video display system of present embodiment is described.As shown in figure 13, show that on the display part 106 of the video display devices 100 of present embodiment the indication power supply blocks the power supply truncate button 120 of usefulness.
What show on the screen of power supply truncate button 120 and the general personal computer of popularizing is identical.The user clicks power supply truncate button 120 by waiting with remote controller or mouse, thus the blocking of power supply that can instruction video display unit 100.In addition, the method for blocking of indication power supply is not limited to this, in addition, also can indicate blocking of power supply by pressing with the operation of mechanical switch of keyboard.
With reference to Figure 14, the control structure of the program that the central processing department 102 of the video display devices 100 in the video display system of present embodiment is carried out is described.
Among the S500, central processing department 102 judges whether to have operated the power supply truncate button.Under the situation of having operated the power supply truncate button (among the S500 being), handle moving on to S502.If not (among the S500 deny) like this, this processing finishes.
Among the S502, central processing department 102 detects the indication that power supply blocks.Among the S504, the thumbnail image that central processing department 102 will be kept in the thumbnail storage portion 114 is all deleted.Among the S506, central processing department 102 is carried out the end process of video display devices 100.
According to as above such structure and flow chart, the action of the video display system of present embodiment is described.
Under the situation of having operated the power supply truncate button by the user (among the S500 being), detect the indication (S502) that power supply blocks, with all deletions of thumbnail image (S504) that are kept in the thumbnail storage portion 114.Afterwards, carry out the end process (S506) of video display devices 100.
Thus, even under the situation that thumbnail storage portion 114 is made of nonvolatile memory, also can delete thumbnail image reliably.Therefore, can prevent to preserve the duplicating of content of the form of thumbnail image.As a result, even the content of being sure not to duplicate, also can suppress copy limit becomes problem, can show the thumbnail that generates according to content.
The 4th embodiment
Below, the 4th embodiment of the present invention is described.Present embodiment will duplicate the storage part that allows number of times to be kept at video display devices 100 than thumbnail image by the big content of device and system predetermined times aspect different with aforesaid the 1st embodiment.Identical for other structures with described the 1st embodiment.Function at these is also identical.Therefore, do not repeat detailed description here to these.
With reference to Figure 15, the control structure of the program of illustrate in the video display system of present embodiment, the central processing department 204 of videograph regenerating unit 200 being carried out.
Among the S600, central processing department 204 judges whether to have received the thumbnail request signal from video display devices 100.Under having received (among the S600 being), processing is moved on to S602 from the situation of the thumbnail request signal of video display devices 100.If not (deny) to handle turning back to S600 like this among the S600.
Among the S602, central processing department 204 generates in the content that is recorded on the dish device 210, remove the thumbnail image corresponding to the content after the content of the thumbnail image of preserving on storage part 110.Thumbnail image generates in thumbnail generating unit 212.
Among the S604, central processing department 204 sends to video display devices 100 with the thumbnail image that generated with the identifying information of content.After the identifying information of thumbnail image and content encrypted by cryptographic processing portion 206, send to video display devices 100 by sending Return Reception Dept. 208.
Among the S606, the content that central processing department 204 is judged except the thumbnail image of preserving in storage part 110, in addition whether also meaningful.(be) to handle turning back to S602 among the S606 under in addition also meaningful situation.If not (deny) to handle moving on to S608 like this among the S606.In addition, having under the situation of a plurality of contents, can once connect and once send thumbnail image, also can send a plurality of simultaneously.
Among the S608, central processing department 204 judges whether to have received the content regeneration request signal from video display devices 100.Under having received (among the S608 being), handle moving on to S610 from the situation of the content regeneration request signal of video display devices 100.If not (deny) to handle turning back to S608 like this among the S608.
Among the S610, central processing department 204 sends to video display devices 100 with content.After content is encrypted by cryptographic processing portion 206, send to video display devices 100 by sending Return Reception Dept. 208.
With reference to Figure 16 and Figure 17, the control structure of the program that the central processing department 102 of video display devices 100 in the video display system of present embodiment is carried out is described.
Among the S700, central processing department 102 for example according to user's operation, sends to videograph regenerating unit 200 with the thumbnail request signal.The thumbnail request signal sends to videograph regenerating unit 200 by sending Return Reception Dept. 108.
Among the S702, central processing department 102 judges whether that the contents list that will preserve thumbnail image on storage part 110 sends to videograph regenerating unit 200.
Among the S704, central processing department 102 judges whether to have received thumbnail image and content identification information from videograph regenerating unit 200.(be) to handle moving on to S706 among the S704 under the situation that has received thumbnail image and content identification information.If not (deny) to handle moving on to S710 like this among the S704.
Among the S706, central processing department 102 is preserved thumbnail image, preserves content identification information simultaneously.Thumbnail image is kept in the thumbnail storage portion 112 after being decrypted in cryptographic processing portion 116.Content identification information is kept in the storage part 110 after being decrypted in cryptographic processing portion 116.
Among the S708, central processing department 102 recorded and stored the moment of thumbnail image.The moment of having preserved thumbnail image is recorded in the thumbnail control part 114.
Among the S710, whether central processing department 102 is judged except corresponding to the content that is kept at the thumbnail image in the storage part 110, in addition also meaningful.(be) to handle turning back to S702 among the S710 under in addition also meaningful situation.If not (deny) to handle moving on to S712 like this among the S710.
Among the S712, central processing department 102 utilizes in the thumbnail storage portion 112 content identification information of preserving in the thumbnail image preserved in the thumbnail image preserved, the storage part 110 and the storage part 110, generate the GUI picture that content choice is used, and be presented in the display part 106 of GUI picture as the content choice picture.
Among the S714, central processing department 102 judges from the moment of preserving thumbnail image whether passed through official hour.Rising under the situation of having passed through official hour in the moment of preserving thumbnail image (is) to handle moving on to S716 among the S714.If not (deny) to handle entering S718 like this among the S714.In addition, official hour is the time that suitably defines in advance by device and system.Also can change official hour by the user.
Among the S716, central processing department 102 relatively duplicating of content allows number of times and threshold value.Exist under the situation of a plurality of contents, relatively duplicating of each content allows number of times and threshold value.Here, threshold value is the number of times that is predetermined by device and system.Also can change threshold value by the user.
Among the S718, central processing department 102 will to allow number of times be that the thumbnail image of the content more than the threshold value is kept in the storage part 110 corresponding to duplicating, and deletes the GUI picture of using corresponding to content choice simultaneously and duplicate the thumbnail image that allows the number of times content littler than threshold value.The deletion of GUI picture and thumbnail image is carried out in thumbnail control part 114.
Among the S720, central processing department 102 makes corresponding to duplicating of the content that is kept at the thumbnail image in the storage part 110 and allows number of times to subtract 1.
Among the S722, the content that central processing department 102 has judged whether to select the user to watch.(be) to handle moving on to S724 among the S722 under the situation of having selected content.If not (deny) to handle turning back to S714 like this among the S722.
Among the S724, central processing department 102 sends to videograph regenerating unit 200 with selected content regeneration request signal.The content regeneration request signal sends to videograph regenerating unit 200 by sending Return Reception Dept. 108.
Among the S726, central processing department 102 relatively duplicating of content allows number of times and threshold value.Having under the situation of a plurality of contents, relatively duplicating of each content allows number of times and threshold value.Here, threshold value is the number of times that is predetermined by device and system.Also can change threshold value by the user.
Among the S728, central processing department 102 will to allow number of times be that the thumbnail image of the content more than the threshold value is kept in the storage part 110 corresponding to duplicating, and deletes GUI picture that content choice uses simultaneously and corresponding to duplicating the thumbnail image that allows the number of times content littler than threshold value.The deletion of GUI picture and thumbnail image is carried out in thumbnail control part 114.
Among the S730, central processing department 102 makes corresponding to duplicating of the content that is kept at the thumbnail image in the storage part 110 and allows number of times to subtract 1.
Among the S732, central processing department 102 judges whether to have received content from videograph regenerating unit 200.(be) to handle moving on to S726 among the S724 under the situation that has received content.If not (deny) then to handle turning back to S724 like this among the S724.
Among the S734, central processing department 102 is presented at the content that is received on the display part 106.Content is presented on the display part 106 after being decrypted by cryptographic processing portion 116.
According to as above such structure and flow chart, the action of the video display system of present embodiment is described.
Operation by carrying out the user etc. sends to videograph regenerating unit 200 (S700) with the thumbnail request signal from video display devices 100.In addition, as described later, to allow number of times be that the thumbnail image of the above content of threshold value is kept in the storage part 110 owing to will duplicate, so the contents list of having preserved thumbnail image in the storage part 110 is sent to videograph regenerating unit 200 (S702).
Received under the situation of thumbnail request signal (among the S600 being) at videograph regenerating unit 200 side joints, generated the thumbnail image of removing corresponding to the content after the content of the thumbnail image of in storage part 110, preserving (S602).The thumbnail image that generated is sent to video display devices 100 (S604) with the identifying information of content.
Outside removing corresponding to the content that is kept at the thumbnail image in the storage part 110, in addition under the also meaningful situation (among the S606 being), repeat the transmission (S604) of the identifying information of the generation (S602) of thumbnail image and thumbnail image and content.
In video display devices 100 sides, received under the situation of thumbnail image and content identification information (among the S704 being), thumbnail image is kept in the thumbnail storage portion 112, content identification information is kept at (S706) in the storage part 110.At this moment, the moment of having preserved thumbnail image is recorded in (S708) in the thumbnail control part 114.
Outside removing, under the in addition also meaningful situation (among the S710 being), repeat S702 processing afterwards corresponding to the content that is kept at the thumbnail image in the storage part 110.For example, receiving all or before displayable all thumbnail images on the picture, repeating the processing after the S702.
Utilize the thumbnail image that receives like this, the thumbnail image of in storage part 110, preserving and the identifying information of content, generate the GUI picture that content choice is used, and the GUI picture is presented at (S712) on the display part 106.
Under this state, not from user's operation, passed through official hour from the moment of preserving thumbnail image, for example under 10 minutes the situation (among the S714 being), relatively duplicating of content allows number of times and threshold value (S716).
Will to allow number of times be that the thumbnail image of the content more than the threshold value is kept at (S718) in the storage part 110 corresponding to duplicating.On the other hand, the deletion GUI picture used of content choice and corresponding to duplicating the thumbnail image (S718) that allows the number of times content littler than threshold value.Duplicating of the content of the thumbnail image that will be preserved corresponding to storage part 110 allows number of times to subtract 1 (S720).
Having selected picture and selecting under the situation of content (among the S722 being), the content regeneration request signal is sent to videograph regenerating unit 200 (S724) from video display devices 100 by content displayed on display part 106.
At this moment, owing to can carry out the correspondence of thumbnail image and original content,, then send the regeneration request signal corresponding with original contents if on the content choice picture, selected thumbnail image according to content identification information.
At this moment also compare duplicating of content and allow number of times and threshold value (S726).Will to allow number of times be that the thumbnail image of the content more than the threshold value is kept at (S728) in the storage part 110 corresponding to duplicating.On the other hand, the deletion GUI picture used of content choice and corresponding to duplicating the thumbnail image (S728) that allows the number of times content littler than threshold value.To allow number of times to subtract 1 corresponding to duplicating of the content that is kept at the thumbnail image on the storage part 110.
In videograph regenerating unit 200 sides, under having received (among the S608 being), the content of being asked is sent to video display devices 100 (S610) from the situation of the content regeneration request signal of video display devices 100.
In video display devices 100 sides, (be) to display the content in (S726) on the display part 106 among the S724 under the situation that has received content.Thus, come the rating content by the user.Like this, can realize identical effect with described first embodiment.
The 5th embodiment
Below, the 5th embodiment of the present invention is described.The present invention will duplicate on the storage part 110 that the thumbnail image that allows the number of times content bigger than the number of times that is predetermined by device and system is kept at video display devices 100 aspect different with described the 2nd embodiment.For other structures, identical with described the 2nd embodiment.These function is also identical.Therefore, do not repeat detailed description here for these.
With reference to Figure 18, the control structure of the program that the central processing department 204 of videograph regenerating unit 200 is carried out is described in the video display system of present embodiment.
Among the S800, central processing department 204 judges whether to have received the thumbnail request signal from video display devices 100.Under having received (among the S800 being), handle moving on to S802 from the situation of the thumbnail request signal of video display devices 100.If not (deny) to handle turning back to S800 like this among the S800.
Among the S802, central processing department 204 will the tabulation of the content of record send to video display devices 100 on dish device 210.After the tabulation of content encrypted by cryptographic processing portion 206, send to video display devices 100 by sending Return Reception Dept. 208.
Among the S804, central processing department 204 judges whether to have received from video display devices 100 the regeneration request signal of data of the fore-end of content.Under the situation of the regeneration request signal of the data of the fore-end that has received content (among the S804 being), handle moving on to S806.If not (deny) to handle moving on to S804 like this among the S804.
Among the S806, central processing department 204 sends to video display devices 100 with the data of the fore-end of content and the identifying information of content.After the identifying information of the data of the fore-end of content and content encrypted by cryptographic processing portion 206, send to video display devices 100 by sending Return Reception Dept. 208.At this moment, the data of the fore-end of content can send by minification or reduction bit rate.
Among the S808, whether central processing department 204 is judged in addition also meaningful.(be) to handle turning back to S806 among the S808 under in addition also meaningful situation.If not (among the S808 deny) like this, handle and move on to 810.In addition, have under a plurality of situations, also can a plurality ofly send simultaneously interior.In addition, also reduced size or reduce bit rate, and send the data of the fore-end of a plurality of contents simultaneously.
Among the S810, central processing department 204 judges whether to have received the content regeneration request signal from video display devices 100.Under having received (among the S810 being), handle moving on to S812 from the situation of the content regeneration request signal of video display devices 100.If not (deny) then to handle and get back to S810 like this among the S810.
Among the S812, central processing department 204 sends to video display devices 100 with content.After content is encrypted by cryptographic processing portion 206, send to video display devices 100 by sending Return Reception Dept. 208.
With reference to Figure 19 and Figure 20, the control structure of the program that the central processing department 102 of video display devices 100 is carried out is described in the video display system of present embodiment.
Among the S900, central processing department 102 for example according to user's operation, sends to videograph regenerating unit 200 with the thumbnail request signal.The thumbnail request signal sends to videograph regenerating unit 200 by sending Return Reception Dept. 108.
Among the S902, central processing department 102 judges whether to have received from videograph regenerating unit 200 includes contents list.(be) to handle moving on to S904 among the S902 under having received the situation of including contents list.If not (deny) then to handle turning back to S902 like this among the S902.
Among the S904, central processing department 102 is according to the tabulation that receives, in the content that the dish device 210 of videograph regenerating unit 200 is write down, the regeneration request signal removed corresponding to the data of the fore-end of the content after the content of the thumbnail image of preserving in storage part 110 sends to the videograph regenerating unit.
Among the S906, central processing department 102 judges whether to have received from videograph regenerating unit 200 data and the content identification information of the fore-end of removing the content after the content that is kept at the thumbnail image the storage part 110.Under the situation of the data of the fore-end that has received content and content identification information (among the S906 being), handle moving on to S908.If not (deny) to handle turning back to S906 like this among the S906.
Among the S908, central processing department 102 generates thumbnail image from the data of the fore-end by sending the content that Return Reception Dept. 108 receives, and preserves the thumbnail image that is generated, and preserves content identification information simultaneously.After the data of the fore-end of content are decrypted, generate thumbnail image in cryptographic processing portion 116.After content identification information is decrypted in cryptographic processing portion 116, be kept in the storage part 110.
Among the S910, central processing department 102 recorded and stored the moment of thumbnail image.The moment of having preserved thumbnail image is recorded in the thumbnail control part 114.
Among the S912, whether central processing department 102 is judged except corresponding to the content that is kept at the thumbnail image in the storage part 110, in addition also meaningful.(be) to handle turning back to S906 among the S912 under in addition also meaningful situation.If not (deny) to handle moving on to S914 like this among the S912.
Among the S914, central processing department 102 utilizes in the thumbnail storage portion 112 content identification information of preserving in the thumbnail image preserved in the thumbnail image preserved, the storage part 110 and the storage part 110, generate the GUI picture that content choice is used, and be presented on the display part 106 of GUI picture as the content choice picture.
Among the S916, central processing department 102 judges from the moment that thumbnail image is kept at thumbnail storage portion 112 whether passed through official hour.Rising under the situation of having passed through official hour in the moment of preserving thumbnail image (is) to handle moving on to S918 among the S916.If not (deny) to handle entering S920 like this among the S916.In addition, official hour is the time that suitably defines in advance by device and system.Also can change official hour by the user.
Among the S918, central processing department 102 relatively duplicating of content allows number of times and threshold value.Exist under the situation of a plurality of contents, relatively duplicating of each content allows number of times and threshold value.Here, threshold value is the number of times that is predetermined by device and system.Also can change threshold value by the user.
Among the S920, central processing department 102 will to allow number of times be that the thumbnail image of the content more than the threshold value is kept in the storage part 110 corresponding to duplicating, and deletes the GUI picture of using corresponding to content choice simultaneously and duplicate the thumbnail image that allows the number of times content littler than threshold value.The deletion of GUI picture and thumbnail image is carried out in thumbnail control part 114.
Among the S922, central processing department 102 makes corresponding to duplicating of the content that is kept at the thumbnail image in the storage part 110 and allows number of times to subtract 1.
Among the S924, central processing department 102 judges whether to have selected the content of watching by the user.The user is shown in Figure 7 as the aforementioned, and use content displayed on display part 106 selects picture to come chosen content.In addition, the system of selection of content is not limited to this.
(be) to handle moving on to S926 among the S924 under the situation of having selected content.If not (deny) to handle turning back to S916 like this among the S924.Among the S926, central processing department 102 sends to videograph regenerating unit 200 with selected content regeneration request signal.The content regeneration request signal sends to videograph regenerating unit 200 by sending Return Reception Dept. 108.
Among the S928, central processing department 102 relatively duplicating of content allows number of times and threshold value.Having under the situation of a plurality of contents, relatively duplicating of each content allows number of times and threshold value.Here, threshold value is by device and system's predetermined times.In addition, can change threshold value by the user.
Among the S930, central processing department 102 will to allow number of times be that the thumbnail image of the content more than the threshold value is kept in the storage part 110 corresponding to duplicating, and deletes GUI picture that content choice uses simultaneously and corresponding to duplicating the thumbnail image that allows the content that number of times lacks than threshold value.The deletion of GUI picture and thumbnail image is carried out in thumbnail control part 114.
Among the S932, central processing department 102 will allow number of times to subtract " 1 " corresponding to duplicating of the content that is kept at the thumbnail image in the storage part 110.
Among the S934, central processing department 102 judges whether to have received content from videograph regenerating unit 200.(be) to handle moving on to S936 among the S934 under the situation that has received content.If not (deny) to handle turning back to S934 like this among the S934.
Among the S936, central processing department 102 is presented at the content that is received on the display part 106.Content is presented on the display part 106 after being decrypted by cryptographic processing portion 116.
According to above this spline structure and flow chart, the action of the video display system of present embodiment is described.
Operation by carrying out the user etc. sends to videograph regenerating unit 200 (S900) with the thumbnail request signal from video display devices 100.Received under the situation of thumbnail request signal (among the S800 being) at videograph regenerating unit 200 side joints, will on dish device 210, the tabulation of the content of record send to video display devices 100 (S802) from videograph regenerating unit 200.
In video display devices 100 sides, under having received the situation of including contents list (among the S902 be), according to the content that is received, in the content with record in the dish device 210 of videograph regenerating unit 200, the regeneration request signal removed corresponding to the data of the fore-end of the content after the content that is kept at the thumbnail image in the storage part 110 sends to videograph regenerating unit 200 (S904) from video display devices 100.In video recording apparatus 200 sides, under the situation of the regeneration request signal of the data of the fore-end that has received content (among the S804 being), the data of the fore-end of content and the identifying information of content are sent to video display devices 100 (S806) from the videograph regenerating unit.
Outside removing, under the in addition also meaningful situation (among the S808 being), repeat the transmission (S806) of the identifying information of the data of fore-end of content and content corresponding to the content that is kept at the thumbnail image on the storage part 110.
In video display devices 100 sides, under the situation of the data of the fore-end that has received content and content identification information (among the S906 being), generate thumbnail image from the data of the fore-end of content, and preserve the thumbnail image that is generated, preserve content identification information (S908) simultaneously.At this moment, be recorded in (S910) in the thumbnail control part 114 moment of having preserved thumbnail image.
Outside removing, under the in addition also meaningful situation (among the S912 being), repeat S906 processing afterwards corresponding to the content that is kept at the thumbnail image in the storage part 110.For example, the processing after generating all or on a picture, repeating S906 before displayable all thumbnail images.
Utilize the thumbnail image that obtains like this, the thumbnail image of in storage part 110, preserving and the identifying information of content, generate the GUI picture that content choice is used, and the GUI picture is presented at (S914) on the display part 106.Under this state, not from user's operation, passed through official hour from the moment of preserving thumbnail image, for example under 10 minutes the situation (among the S916 being), relatively duplicating of content allows number of times and threshold value (S918).
Will to allow number of times be that the thumbnail image of the content more than the threshold value is kept at (S920) on the storage part 110 corresponding to duplicating.On the other hand, the deletion GUI picture used of content choice and corresponding to duplicating the thumbnail image (S920) that allows the number of times content littler than threshold value.To allow number of times to subtract 1 (S922) corresponding to the duplicating of content of the thumbnail image of preserving on the storage part 110.
By being presented at content choice picture and selecting on the display part 106 under the situation of content (among the S924 being), the content regeneration request signal is sent to videograph regenerating unit 200 (S926) from video display devices 100.
At this moment, owing to can carry out the correspondence of thumbnail image and original content,, then send the regeneration request signal corresponding with original content if on the content choice picture, selected thumbnail image according to content identification information.
At this moment also compare duplicating of content and allow number of times and threshold value (S928).Will to allow number of times be that the thumbnail image of the content more than the threshold value is kept at (S930) in the storage part 110 corresponding to duplicating.On the other hand, the deletion GUI picture used of content choice and corresponding to duplicating the thumbnail image (S930) that allows the number of times content littler than threshold value.To allow number of times to subtract 1 corresponding to duplicating of the content that is kept at the thumbnail image on the storage part 110.
In videograph regenerating unit 200 sides, under having received (among the S810 being), the content of being asked is sent to video display devices 100 (S812) from the situation of the content regeneration request signal of video display devices 100.
In video display devices 100 sides, (be) to display the content in (S936) on the display part 106 among the S934 under the situation that has received content.Thus, come the rating content by the user.Like this, can realize identical effect with described the 2nd embodiment.
Though the application is described in detail and represents, should know that understanding it only is the mode of representing and giving an example, be not used for limiting, only limit the scope of spirit of the present invention by additional technical scheme.

Claims (10)

1. video display devices, it shows the thumbnail that generates according to content, comprising:
Generating unit (118), it generates described thumbnail according to described content;
Storage part (112), it stores described thumbnail;
Display part (106), it shows the thumbnail of being stored; With
Deletion portion, it is the information of the service condition of described content according to the rules, and deletion is stored in the thumbnail in the described storage part (112),
The information of wherein stipulating the service condition of described content be described content duplicate the permission number of times.
2. video display devices according to claim 1 is characterized in that, described deletion portion (114) is under the situation that has satisfied predetermined condition, and deletion is according to duplicating the thumbnail that the content that allows number of times to lack than predetermined times generates.
3. video display devices according to claim 2 is characterized in that, described predetermined condition is through the condition of official hour behind the described thumbnail of storage.
4. video display devices according to claim 2 is characterized in that, described predetermined condition is to select the condition of described thumbnail for the described content of rating.
5. video display devices according to claim 2 is characterized in that, described predetermined condition is that the power supply with described video display devices is made as the condition of blocking.
6. video display devices according to claim 1 is characterized in that, described video display devices further comprises handling part (114), and it is handled not delete according to the mode of duplicating the thumbnail that allows the content generation that number of times Duo than predetermined times.
7. video display devices according to claim 1 is characterized in that, described storage part (112) is made of volatile memory.
8. video display devices according to claim 1 is characterized in that,
Described video display devices further comprises the demonstration memory (104) of volatibility, and its preservation sends to the data of described display part (106);
Described storage part (112) is made of with memory described demonstration.
9. video display devices according to claim 1, it is characterized in that, described video display devices further comprises obtaining section (108), and it obtains the information of the service condition of described content and the described content of regulation from the device different with described video display devices.
10. a video display system is characterized in that, comprising:
The described video display devices of claim 9; With
Generator (200), it connects described video display devices through network (300), and the information of the described content and the service condition of the described content of regulation is offered described video display devices.
CNB2006100886732A 2005-06-07 2006-06-05 Video display device and video display system Expired - Fee Related CN100505855C (en)

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