CN102883109A - Image signal sending device, image signal receiving device, and image signal transmission system and method - Google Patents
Image signal sending device, image signal receiving device, and image signal transmission system and method Download PDFInfo
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Abstract
The invention discloses an image signal sending device, which comprises two or more than two video adjusting units and a video integrating unit, wherein each video adjusting unit is used for receiving an image signal which is output by each image device and has more than one original frame rate and adjusting the original frame rates of each image signal into more than one new frame rate; and the video integrating unit is used for combining the image signals to form an integrated image signals with the original frame rates or the new frame rates and sending the integrated image signal to a remote distance through a sending channel; the sum of the new frame rates of the image signals is smaller than or equal to the maximum frame rate in a bandwidth range of the sending channel, so that the transmission efficiency of the image signals is improved.
Description
Technical field
The present invention is relevant for a kind of signal transmission system, and particularly a kind of image signal transmitting device, receiving system, transmission system and method thereof.
Background technology
Along with the consideration of user demand and operating environment, more and more users are when the playing video signal, and many images source switched system of often arranging in pairs or groups provides and uses more user demand.On the framework of many images source switched system, roughly be to comprise a plurality of inputs, commutation circuit and a plurality of output.Each input is connected with an image player, each output then is to connect a display unit (such as screen, projector etc.), select image player to provide image to originate to display unit by commutation circuit, so that display unit shows the presentation content of wanting to view and admire.
When user's wish transfers to a plurality of signal of video signal when long-range, often by the internet as transmission medium, but because the data volume of each signal of video signal is huge, do not send if just directly be put on the internet through image compression, its must so that originally the limited internet of frequency range more cannot move.Therefore, in order to carry out a plurality of signal of video signal transmission in the limited internet of frequency range, common method has the Lossless Compression method of employing and distortion compression method.Aforesaid two kinds of compression methods mainly transmit by first signal of video signal being compressed processing in transmitting terminal again, shared data frequency range when reducing the transmission of a plurality of signal of video signal, and use corresponding decompression method that aforesaid a plurality of signal of video signal are reduced in receiving terminal.
If when wherein adopting the Lossless Compression method to process signal of video signal, although the signal of video signal after the reduction almost is undistorted situation, but the shared transfer of data frequency range of each signal of video signal is larger, so be subject to the relation of transmitting bandwidth, the image quantity that causes transmitting is subject to relative restriction.If when adopting the distortion compression method to process signal of video signal, although the shared transfer of data frequency range of each signal of video signal is less, so relatively can increase the image quantity that can transmit, the situation of distortion can appear in signal of video signal after the reduction unavoidably.
Therefore, aforesaid compression method transmission means all may have the problem of making us perplexing, and how a kind of signal of video signal transmission system is provided, and has become one of researcher's problem at present to be solved.
Summary of the invention
The embodiment of the invention is to provide a kind of image signal transmitting device, receiving system, transmission system and method thereof, the frame per second of signal of video signal when transmitting by adjusting, with the data capacity of minimizing signal of video signal, and utilize former transmission line can increase the quantity that sends signal of video signal.But if the then transmission and saving transmitting time of accelerating network of application network transmission line, and then the efficiency of transmission of lifting signal of video signal.
The image signal transmitting device that the present invention proposes, be connected with two or more device for image, include: two or more video adjustment units, each video adjustment unit is in order to the signal of video signal of the original frame per second with more than one that receives respectively the output of each device for image, and adjusts each original frame per second of each signal of video signal and be more than one new frame per second; And a video integral unit, be to have one of each original frame per second or each new frame per second to integrate signal of video signal in order to merge each signal of video signal, and send the integration signal of video signal to long-range by sendaisle; Wherein the summation of the new frame per second of each signal of video signal is less than or equal to the maximum frame per second in the frequency range scope of sendaisle.
The video signal receiving apparatus that the present invention proposes, be connected with one or more display unit, include: a video separation unit, an integration signal of video signal that has more than one original frame per second in order to reception, and separation integration signal of video signal is the two or more signal of video signal with more than one new frame per second; And one or more video adjustment unit, each video adjustment unit is in order to each signal of video signal with each new frame per second of the output of receiver, video separative element respectively, and promote or reduce each new frame per second of each signal of video signal after export each display unit to.
The signal of video signal transmission system that the present invention proposes, be connected with two or more device for image respectively, and one or more display unit connects, include: two or more image signal transmitting devices, signal of video signal in order to the original frame per second with more than one that receives the output of each device for image, and each signal of video signal merged into have one of each original frame per second and integrate signal of video signal, integrate signal of video signal to send; And one or more video signal receiving apparatus, the integration signal of video signal that has each original frame per second in order to reception, and separate that to integrate signal of video signal be the signal of video signal with more than one new frame per second; Wherein each image signal transmitting device is before merging the integration signal of video signal, each original frame per second of also adjusting each signal of video signal is each new frame per second, each video signal receiving apparatus after separate integrating signal of video signal, also promote or reduce each new frame per second of each signal of video signal after export each display unit to.
The image signal transmission method that the present invention proposes, be applicable to the transmission between two or more image signal transmitting devices and the one or more video signal receiving apparatus, comprise the following steps: that more than one original frame per second of the signal of video signal that receives separately by each image signal transmitting device adjustment is more than one new frame per second; Merging each signal of video signal with each new frame per second by each image signal transmitting device is to have one of each original frame per second to integrate signal of video signal; And it is extremely long-range to send the integration signal of video signal with each original frame per second by each image signal transmitting device.
In other words, the present invention is a kind of image signal transmitting device, is connected with two or more device for image, and wherein, described image signal transmitting device comprises:
Two or more video adjustment units, each described video adjustment unit is in order to the signal of video signal of the original frame per second with more than one that receives respectively each described device for image output, and adjusts each described original frame per second of each described signal of video signal and be more than one new frame per second; And
One video integral unit is to have one of each described original frame per second or each described new frame per second to integrate signal of video signal in order to merge each described signal of video signal, and sends described integration signal of video signal to long-range by a sendaisle;
Wherein the summation of each described new frame per second of each described signal of video signal is less than or equal to the maximum frame per second in the frequency range scope of described sendaisle.
Image signal transmitting device of the present invention, wherein, described image signal transmitting device is arranged at respectively in each described device for image, switch, distributor, matrix device or the stretcher that each described signal of video signal is provided.
Image signal transmitting device of the present invention, wherein, each described device for image is video camera, desktop PC main frame, server, notebook computer or video player.
Image signal transmitting device of the present invention, wherein, the data capacity of each described signal of video signal, each described frame per second or type are different each other.
Image signal transmitting device of the present invention, wherein, each described device for image has the different video interface.
The present invention is a kind of video signal receiving apparatus, is connected with one or more display unit, and wherein, described video signal receiving apparatus comprises:
One video separation unit, have in order to reception more than one original frame per second one integrate signal of video signal, and to separate described integration signal of video signal be the one or more signal of video signal with more than one new frame per second; And
One or more video adjustment unit, each described video adjustment unit is in order to receiving respectively each described signal of video signal with each described new frame per second of described video separation unit output, and promote or reduce each described new frame per second of each described signal of video signal after export each described display unit to.
Video signal receiving apparatus of the present invention, wherein, each described new frame per second that each described video adjustment unit is also adjusted each described signal of video signal is each described original frame per second.
Video signal receiving apparatus of the present invention, wherein, described video signal receiving apparatus is arranged at respectively in each described display unit, switch, distributor, matrix device or the stretcher.
Video signal receiving apparatus of the present invention, wherein, each described display unit has the different video interface.
Video signal receiving apparatus of the present invention wherein, also increases the processing of image format to export each the described display unit with different video interface to by described video signal receiving apparatus.
Video signal receiving apparatus of the present invention wherein, also makes each described display unit show simultaneously the same picture or different pictures by described video signal receiving apparatus.
The present invention is a kind of signal of video signal transmission system, is connected with two or more device for image respectively, and the connection of one or more display unit, wherein, described signal of video signal transmission system comprises:
Two or more image signal transmitting devices, signal of video signal in order to the original frame per second with more than one that receives each described device for image output, and each described signal of video signal merged into have one of each described original frame per second and integrate signal of video signal, to send described integration signal of video signal; And
One or more video signal receiving apparatus has the described integration signal of video signal of each described original frame per second in order to reception, and to separate described integration signal of video signal be the signal of video signal with more than one new frame per second;
Wherein each described image signal transmitting device is before merging described integration signal of video signal, each described original frame per second of also adjusting each described signal of video signal is each described new frame per second, each described video signal receiving apparatus after separating described integration signal of video signal, also promote or reduce each described new frame per second of each described signal of video signal after export each described display unit to.
Signal of video signal transmission system of the present invention, wherein, each described new frame per second that each described video signal receiving apparatus is also adjusted each described signal of video signal is each described original frame per second.
Signal of video signal transmission system of the present invention, wherein, the summation of the described new frame per second of each of each described signal of video signal is less than or equal to the maximum frame per second in the frequency range scope of described sendaisle.
Signal of video signal transmission system of the present invention, wherein, each described image signal transmitting device is arranged at respectively in each described device for image, switch, distributor, matrix device or the stretcher that each described signal of video signal is provided.
Signal of video signal transmission system of the present invention, wherein, each described video signal receiving apparatus is arranged at respectively in each described display unit, switch, distributor, matrix device or the stretcher.
Signal of video signal transmission system of the present invention wherein, also increases the processing of image format to export each the described display unit with different video interface to by each described video signal receiving apparatus.
Signal of video signal transmission system of the present invention wherein, also makes each described display unit show simultaneously the same picture or different pictures by each described video signal receiving apparatus.
The present invention is a kind of image signal transmission method, is applicable to the transmission between two or more image signal transmitting devices and the one or more video signal receiving apparatus, and wherein, described image signal transmission method includes the following step:
The original frame per second of more than one of the signal of video signal that receives separately by each described image signal transmitting device adjustment is more than one new frame per second;
Merging each the described signal of video signal with each described new frame per second by each described image signal transmitting device is to have one of each described original frame per second to integrate signal of video signal; And
It is extremely long-range to send the described integration signal of video signal with each described original frame per second by each described image signal transmitting device and a sendaisle.
Image signal transmission method of the present invention, wherein, the summation of the described new frame per second of each of each described signal of video signal is less than or equal to the maximum frame per second in the frequency range scope of described sendaisle.
Image signal transmission method of the present invention wherein, has the described integration signal of video signal of each described original frame per second to long-range step in transmission, also include:
Receive the described integration signal of video signal with each described original frame per second by each described many video signal receiving apparatus;
Separating the described integration signal of video signal with each described original frame per second by each described video signal receiving apparatus is each the described signal of video signal with each described new frame per second; And
By each described video signal receiving apparatus promote or reduce each described new frame per second of each described signal of video signal after export each described display unit to.
Image signal transmission method of the present invention wherein, also increases the processing of image format to export each the described display unit with different video interface to by each described video signal receiving apparatus.
Image signal transmission method of the present invention wherein, also makes each described display unit show simultaneously the same picture or different pictures by each described video signal receiving apparatus.
In sum, the present invention can carry out signal of video signal transmission operation under original transmitting bandwidth, mainly is to adjust first the frame per second of each signal of video signal and merge the data capacity when transmitting to reduce each signal of video signal in transmitting terminal.Then carry out signal of video signal transmission operation, and reduce the frame per second of each signal of video signal in receiving terminal, to export display unit to, promote thus the efficiency of transmission of signal of video signal, and relatively increase the availability of transmitting bandwidth, in addition, occur in the time of also can avoiding transmitting that data are omitted and the problem that affects the signal of video signal output quality.
For enabling further to understand feature of the present invention and technology contents, please refer to following relevant detailed description of the present invention and accompanying drawing, yet appended graphic only be for provide with reference to the usefulness of explanation, the present invention is limited.
Description of drawings
Figure 1A is signal of video signal transmission schematic diagram of the present invention.
Figure 1B is another signal of video signal transmission schematic diagram of the present invention.
Fig. 2 is the system block diagrams of image signal transmitting device of the present invention.
Fig. 3 is the system block diagrams of video signal receiving apparatus of the present invention.
Fig. 4 is the system block diagrams of signal of video signal transmission system of the present invention.
Fig. 5 is method flow diagram of the present invention.
The explanation of Reference numeral
11 first computer systems
112 operation-interfaces
114 first main frame linkage units
116 second main frame linkage units
12 second computer systems
108 processing units
1,041 first video adjustment units
1,042 second video adjustment units
1043 video integral unit
14 first display unit
The 112a operation-interface
114a first shows linkage unit
116a second shows linkage unit
16 second display unit
The 108a processing unit
1041a the first video adjustment unit
1042a the second video adjustment unit
1043a video separation unit
150 image signal transmitting devices
200 signal of video signal
200a the first signal of video signal
200b the second signal of video signal
210 first signal of video signal
210a the first signal of video signal
210b the second signal of video signal
210c the 3rd signal of video signal
300 video signal receiving apparatus
400 signal of video signal transmission systems
S510～S521 flow chart step explanation
Embodiment
(image transmission embodiment)
Please refer to Figure 1A, Figure 1A is signal of video signal transmission schematic diagram of the present invention.The signal of video signal transmission system of Figure 1A comprises image signal transmitting device 150 and video signal receiving apparatus 300.Sendaisle between image signal transmitting device 150 and the video signal receiving apparatus 300 has transmitted two signal of video signal altogether.Described sendaisle can adopt original transmission line, or other internet transmissions media such as CAT 5 pair cables or optical fiber, or bus.In addition, the transmission quantity of described signal of video signal can be two or more, and the data capacity of described signal of video signal, frame per second or type can differ.
Image signal transmitting device 150 can be carried out adjustment programme, to adjust the original frame per second (frame rate) of the signal of video signal that received.Video signal receiving apparatus 300 can be carried out demodulation process, to receive and the frame per second of the signal of video signal that reduction image signal transmitting device 150 is exported.Above-mentioned frame per second refers to picture update rate, be used for measuring showing measuring of frame number, and the measurement unit of frame per second is per second demonstration frame number (Frame per Second, FPS) or hertz (Hz).
Signal of video signal 200 in the sendaisle has comprised the first signal of video signal 200a with first frame per second and the second signal of video signal 200b with second frame per second.The summation of the first frame per second of the first signal of video signal 200a in the sendaisle and the second frame per second of the second signal of video signal 200b can be the interior maximum frame per second of frequency range scope of sendaisle, perhaps can be described original frame per second, and the first frame per second or the second frame per second can be less than described original frame per second.In addition, if when other design requirement is arranged, the summation of the first frame per second and the second frame per second also can be less than original frame per second.
For instance, when image signal transmitting device 150 had received the first signal of video signal that original frame per second is 60Hz and original frame per second and is the second signal of video signal of 60Hz, the adjustment programme by image signal transmitting device 150 can be that the first signal of video signal of 60Hz is adjusted into the first signal of video signal that the first frame per second is 30Hz with the first original frame per second.Same, the adjustment programme of image signal transmitting device 150 can be that the second signal of video signal of 60Hz is adjusted into the second signal of video signal that the second frame per second is 30Hz with the second original frame per second.At this moment, the summation of the first frame per second 30Hz of the first signal of video signal 200a in the sendaisle and the second frame per second 30Hz of the second signal of video signal 200b can be the interior maximum frame per second of frequency range scope of sendaisle,, perhaps can be the first or second original frame per second 60Hz.In addition, the described first original frame per second can be for identical or different with the second original frame per second.
Next, when video signal receiving apparatus 300 had received the first signal of video signal that the first frame per second is 30Hz and the second frame per second and is the second signal of video signal of 30Hz, the demodulation process by video signal receiving apparatus 300 can be that the first signal of video signal of 30Hz is adjusted into the first signal of video signal that the first original frame per second is 60Hz with the first frame per second.Same, the adjustment programme of signal of video signal receiver module 300 can be that the second signal of video signal of 30Hz is adjusted into the second signal of video signal that the second original frame per second is 60Hz with the second frame per second.
Because frame per second becomes a proportional relation with data capacity, therefore, the low data capacity of low frame per second representative.In other words, the present invention can be implemented in the transmission operation of carrying out a plurality of images under the limited transmitting bandwidth by the transmission means of adjusting frame per second.In addition, owing to be not to use in the past image compression processing mode, so do not affect the output quality of the signal of video signal after the transmission.
Next, please refer to Figure 1B, Figure 1B is another signal of video signal transmission schematic diagram of the present invention.The image transmission system of Figure 1B comprises image signal transmitting device 150 and video signal receiving apparatus 300.Sendaisle between image signal transmitting device 150 and video signal receiving apparatus 300 has transmitted three signal of video signal altogether.Image signal transmitting device 150 is identical with aforementioned principles with adjustment programme and the demodulation process of video signal receiving apparatus 300, below repeats no more.In addition, the transmission quantity of described signal of video signal can be more than three or three.
Signal of video signal 210 in the sendaisle has comprised the first signal of video signal 210a, the second signal of video signal 210b with second frame per second and the 3rd signal of video signal 210c with the 3rd frame per second with first frame per second.The summation of aforesaid the first frame per second, the second frame per second and the 3rd frame per second can be the interior maximum frame per second of frequency range scope of sendaisle, perhaps can be the original frame per second before image signal transmitting module 150 is adjusted.For instance, when original frame per second was 60Hz, the first frame per second, the second frame per second and the 3rd frame per second can be designed to respectively 20Hz, 20Hz and 20Hz, perhaps 40Hz, 10Hz and 10Hz, perhaps, and 30Hz, 20Hz and 10Hz, perhaps 10Hz, 40Hz and 10Hz, the rest may be inferred.
Therefore, the signal of video signal quantity that can corresponding want to transmit of the frame per second after the adjustment and designing.In other words, regulation rule can be divided by the signal of video signal quantity of wanting to transmit with original frame per second, frame per second after can obtaining to adjust,, perhaps original frame per second is deducted a particular value (for example, any integer value, and less than original frame per second) with the frame rate value after the acquisition adjustment, and the frame per second after adjusting is preferably integer, and the summation of each frame per second after adjusting can be the maximum frame per second in the frequency range scope of sendaisle, perhaps can be original frame per second.In addition, aforesaid regulation rule only for illustrating, is not limited in this.
(image dispensing device embodiment)
Please refer to Fig. 2, Fig. 2 is the system block diagrams of image signal transmitting device of the present invention.Image signal transmitting device 150 includes: the first main frame linkage unit 114, the second main frame linkage unit 116, the first video adjustment unit 1041, the second video adjustment unit 1042, video integral unit 1043, processing unit 108 and operation-interface 112.
Image signal transmitting device 150 connects first computer system 11 by the first main frame linkage unit 114, to receive from the first signal of video signal that has the first original frame per second in the first computer system 11.Same, many image signal transmitting devices 150 connect second computer system 12 by the second main frame linkage unit 116, to receive from the second signal of video signal that has the second original frame per second in the second computer system 12.Described the first main frame linkage unit 114 and the second main frame linkage unit 116 can be other video interface modules such as digital visual interface (DVI) module, high resolution multimedia interface (HDMI) module, digital display port (Display Port, DP) or VGA video.Described the first main frame linkage unit 114 and the second main frame linkage unit 116 can be the interface specification that is same to each other or different to each other.
Described first computer system 11 can be video camera, desktop PC main frame, flat computer, server, notebook computer, video player (such as blue light player, DVD or VCD) etc. with second computer system 12 or meets the appliance arrangement of HDCP technology.Described image signal transmitting device 150 also can be arranged at respectively in first computer system 11 and the second computer system 12 (or other device for image, switch (switch), distributor (splitter), matrix device (matrix), stretcher (extender)).Because described switch, distributor, matrix device or stretcher are the general normal signal processing apparatus of using, and are not described in detail at this.The described first original frame per second can be identical or different with the second original frame per second.
The first video adjustment unit 1041 is connected with the first main frame linkage unit 114.The first video adjustment unit 1041 has the first signal of video signal of the first original frame per second in order to reception, and the first original frame per second of adjusting the first signal of video signal is the first frame per second.The first video adjustment unit 1041 can adopt digital signal processing chip (DSP), programmable logic gate array (FPGA) etc., can be in order to the proportional zoom (scaler) of processing image, or the image format conversion.
The second video adjustment unit 1042 is connected with the second main frame linkage unit 116.The second video adjustment unit 1042 has the second signal of video signal of the second original frame per second in order to reception, and the second original frame per second of adjusting the second signal of video signal is the second frame per second.The second video adjustment unit 1042 can adopt digital signal processing chip (DSP), programmable logic gate array (FPGA) etc., can be in order to the proportional zoom (scaler) of processing image, or the image format conversion.
Video integral unit 1043 is connected with the first video adjustment unit 1041, the second video adjustment unit 1042 respectively.The second signal of video signal that video integral unit 1043 is exported in order to the first signal of video signal of merging the output of the first video adjustment unit 1041 and the second video adjustment unit 1042 is the integration signal of video signal with first or second original frame per second.The frame per second of described integration signal of video signal can be set as the first or second original frame per second by the user, or determines frame rate value by other calculator calculation mode.Video integral unit 1043 sends aforesaid integration signal of video signal to long-range (or next stage circuit), wherein video integral unit 1043 and long-range between may have transmission linkage unit (indicate), be converted to the transformat that meets the sendaisle use with the transformat of the integration signal of video signal that will export.If described transmission linkage unit can omit when need not to carry out the transformat conversion.
Operation-interface 112 is connected with processing unit 108.Operation-interface 112 can be one or more button or button, screen display (On Screen Display, OSD) interface, OSB interface or infrared ray (IR) communication interface.Operation-interface 112 can be accepted user's operation and produce operational order and send to processing unit 108, and processing unit 108 and then according to the indication of operational order is set the frame per second of the first video adjustment unit 1041 and 1042 outputs of the second video adjustment unit.In addition, in another embodiment of the present invention, if adopt fixed mode (namely the frame per second of the first video adjustment unit 1041 and 1042 outputs of the second video adjustment unit is for fixing), then can omit operation-interface 112.
(video receiver embodiment)
Please refer to Fig. 3, Fig. 3 is the system block diagrams of video signal receiving apparatus of the present invention.Identical in part assembly in the video signal receiving apparatus 300 and the video signal receiving apparatus 150, below repeat no more.Video signal receiving apparatus 300 includes: the first video adjustment unit 1041a, the second video adjustment unit 1042a, video separation unit 1043a, processing unit 108a, operation-interface 112a, first show that linkage unit 114a and second shows linkage unit 116a.
The first video adjustment unit 1041a is connected with video separation unit 1043a.The first video adjustment unit 1041a receives the first signal of video signal with first frame per second.The first video adjustment unit 1041a can have function and the framework identical with the first video adjustment unit 1041, and furtherly, the first video adjustment unit 1041a can have and adjusts the first signal of video signal and amplify, dwindle function with the image format conversion.The first video adjustment unit 1041a can be the first original frame per second in order to the first frame per second of adjusting the first signal of video signal.In addition, the first video adjustment unit 1041a also can cooperate the user demand of the first display unit 14, promotes or the first frame per second of reducing the first signal of video signal is other frame per second, or does the conversion of image format.
The second video adjustment unit 1042a is connected with video separation unit 1043a.The second video adjustment unit 1042a receives the second signal of video signal with second frame per second.The second video adjustment unit 1042a can have function and the framework identical with the second video adjustment unit 1042, and furtherly, the second video adjustment unit 1042a can have and adjusts the second signal of video signal and amplify, dwindle function with the image format conversion.The second video adjustment unit 1042a can be the second original frame per second in order to the second frame per second of adjusting the second signal of video signal.In addition, the second video adjustment unit 1042a also can cooperate the user demand of the first display unit 14 or the second display unit 16, promotes or the second frame per second of reducing the second signal of video signal is other frame per second, or does the conversion of image format.
Processing unit 180a is connected with video separation unit 1043a.Processing unit 108a can carry out the signal of video signal separable programming in order to control video separation unit 1043.Operation-interface 112a is connected with processing unit 108a.Operation-interface 112a can accept user's operation and produce operational order and send to processing unit 108a, processing unit 108a and then according to the indication of operational order, set the frame per second of the first video adjustment unit 1041a and the second video adjustment unit 1042a output, wherein the first video adjustment unit 1041a can export corresponding signal of video signal simultaneously with the second video adjustment unit 1042a, perhaps the signal of video signal of alternately output correspondence is perhaps selected the same signal of video signal of output simultaneously.In addition, in another embodiment of the present invention, if adopt fixed mode (i.e. the frame per second of the first video adjustment unit 1041a and the second video adjustment unit 1042a output is for fixing), then can omit operation-interface 112a.
First shows that linkage unit 114a is connected with the first video adjustment unit 1041a.Second shows that linkage unit 116a is connected with the second video adjustment unit 1042a.First shows that linkage unit 114a and second shows that linkage unit 116a can be other video interface modules such as digital visual interface (DVI) module, high resolution multimedia interface (HDMI) module, digital display port (Display Port, DP) or VGA video.Described first shows that linkage unit 114a and second shows that linkage unit 116a can be the interface specification that is same to each other or different to each other.In addition, first show linkage unit 114a and second show linkage unit 116a can be corresponding to described interface module be connected slot (socket), have the attachment plug of same-interface and be electrically connected on the first display unit 14 and the second display unit 16 in order to the correspondence connection respectively.
It is worth mentioning that, also can increase the processing of image format by video signal receiving apparatus 300 to export the first display unit 14 and the second display unit 16 with different video interface to.In addition, the picture also can making the first display unit 14 and the second display unit 16 shows simultaneously by video signal receiving apparatus 300 or different pictures.
(image transmission system embodiment)
Next, please refer to Fig. 4, Fig. 4 is the system block diagrams of signal of video signal transmission system of the present invention.Signal of video signal transmission system 400 among Fig. 4 is connected with two computer systems (being first computer system 11 and second computer system 12), two display unit (i.e. the first display unit 14 and the second display unit 16) respectively.Signal of video signal transmission system 400 includes image signal transmitting device 150 and video signal receiving apparatus 300.Described image signal transmitting device 150 can be incorporated on the circuit board with video signal receiving apparatus 300 or on the machine in the box jointly.Because image signal transmitting device 150 illustrates respectively at Fig. 2, Fig. 3 with the operation principles of video signal receiving apparatus 300, below repeats no more.In addition, the quantity of the video adjustment unit in image signal transmitting device 150 and the video signal receiving apparatus 300 is equity mutually in principle, if but when having other design to consider, can increase or reduce the quantity of the video adjustment unit in the video signal receiving apparatus 300.
Video integral unit 1043 is passed through sendaisle with video separation unit 1043, and perhaps bus is connected to each other.Processing unit 108 is connected with video integral unit 1043, video separation unit 1043 respectively.Processing unit 108 can be carried out the signal of video signal integrated process in order to control video integral unit 1043, and processing unit 108 can be carried out the signal of video signal separable programming in order to control video separation unit 1043.
Operation-interface 112 can be accepted user's operation and produce operational order and send to processing unit 108, processing unit 108 and then according to the indication of operational order is set the frame per second of the first video adjustment unit 1041, the second video adjustment unit 1042, the first video adjustment unit 1041a and the second video adjustment unit 1042a output.In addition, the computer system that video signal transmission equipment 400 connects among the present invention and the number of connection of display unit are not the number of connection in order to limiting computer system and display unit only for illustrating.When computer system was plural quantity, then correspondence increased the quantity of main frame linkage unit, video adjustment unit.In addition, when display unit was one or more quantity, then correspondence reduced or increases the quantity of video adjustment unit, demonstration linkage unit.
Please be simultaneously with reference to Fig. 4 and Fig. 5, Fig. 5 is the method flow diagram of signal of video signal transmission of the present invention.At first, in step S510, image signal transmitting device 150 receives has the first signal of video signal and second signal of video signal of the first original frame per second, and the first original frame per second of adjusting described the first signal of video signal is the first frame per second, and the second original frame per second of the second signal of video signal is the second frame per second.Described the first frame per second and the second frame per second can be lower than the first or second original frame per second, reduce thus the first signal of video signal and the corresponding data capacity of the second signal of video signal.Wherein the user can be by the first frame per second and second frame per second of operation-interface 112 setting of image sender units 150.The described first or second original frame per second can be identical or different.
Then, in step S513, the first image and the second image that image signal transmitting device 150 merges after adjusting are the integration signal of video signal with first or second original frame per second, wherein the summation of the first frame per second and the second frame per second can be less than or equal to the maximum frame per second in the frequency range scope of sendaisle, perhaps the first or second original frame per second.In step S515, image signal transmitting device 150 can or send by sendaisle output has described maximum frame per second, and perhaps the integration signal of video signal of the first or second original frame per second is to long-range (or next stage circuit).In step S517, video signal receiving apparatus 300 can receive from the described maximum frame per second of having of long-range (or upper level circuit), perhaps the integration signal of video signal of the first or second original frame per second by sendaisle.
Next, in step S519, video signal receiving apparatus 300 separation have described maximum frame per second, and perhaps the integration signal of video signal of the first or second original frame per second is the second signal of video signal that has the first signal of video signal of the first frame per second and have the second frame per second.In step S521, the first frame per second that video signal receiving apparatus 300 is adjusted the first signal of video signal is the first original frame per second, and the second frame per second of the second signal of video signal is the second original frame per second.In another embodiment of the present invention, video signal receiving apparatus 300 first frame per second that can promote or reduce the first signal of video signal exports the first display unit 14 to for after other frame per second (can be any integer value).In addition, also can increase the processing of image format by video signal receiving apparatus 300, to export the first display unit 14 or the second display unit 16 with different video interface to.Described the first display unit 14 has identical or different video interface with the 16 visual user demands of the second display unit.
Same, in another embodiment of the present invention, the second frame per second that video signal receiving apparatus 300 could promote or reduce the second signal of video signal is to export the second display unit 16 to after other frame per second (can be any integer value).In addition, the picture also can making the first display unit 14 and the second display unit 16 shows simultaneously by video signal receiving apparatus 300 or different pictures.Wherein the user can be by the first frame per second and second frame per second of operation-interface 112 setting of image signal receiving devices 300.Explain with two signal of video signal transmission in the present embodiment, be not limited in this, in other words, the transmission quantity of described signal of video signal can be two or more, and the data capacity of described signal of video signal, frame per second or type can differ.
In sum, the present invention can carry out signal of video signal transmission operation under original transmitting bandwidth, mainly is to adjust first the frame per second of signal of video signal and merge the data capacity when transmitting to reduce signal of video signal by transmitting terminal.Then carry out signal of video signal transmission operation, and in the frame per second of receiving terminal reduction signal of video signal, to export display unit to, promote thus the efficiency of transmission of signal of video signal, and relatively increase the availability of transmitting bandwidth, in addition, occur in the time of also can avoiding transmitting that data are omitted and the problem that affects the signal of video signal output quality.
Although embodiment disclosed by the invention as mentioned above, these embodiment are the usefulness for illustrating only, and should not be interpreted as restriction of the invention process.Within not breaking away from essential scope of the present invention, other change or variation all belong to protection scope of the present invention.
Claims (23)
1. an image signal transmitting device is connected with two or more device for image, it is characterized in that described image signal transmitting device comprises:
Two or more video adjustment units, each described video adjustment unit is in order to the signal of video signal of the original frame per second with more than one that receives respectively each described device for image output, and adjusts each described original frame per second of each described signal of video signal and be more than one new frame per second; And
One video integral unit is to have one of each described original frame per second or each described new frame per second to integrate signal of video signal in order to merge each described signal of video signal, and sends described integration signal of video signal to long-range by a sendaisle;
Wherein the summation of each described new frame per second of each described signal of video signal is less than or equal to the maximum frame per second in the frequency range scope of described sendaisle.
2. image signal transmitting device according to claim 1 is characterized in that, described image signal transmitting device is arranged at respectively in each described device for image, switch, distributor, matrix device or the stretcher that each described signal of video signal is provided.
3. image signal transmitting device according to claim 1 is characterized in that, each described device for image is video camera, desktop PC main frame, server, notebook computer or video player.
4. image signal transmitting device according to claim 1 is characterized in that, the data capacity of each described signal of video signal, each described frame per second or type are different each other.
5. image signal transmitting device according to claim 1 is characterized in that, each described device for image has the different video interface.
6. a video signal receiving apparatus is connected with one or more display unit, it is characterized in that described video signal receiving apparatus comprises:
One video separation unit, have in order to reception more than one original frame per second one integrate signal of video signal, and to separate described integration signal of video signal be the one or more signal of video signal with more than one new frame per second; And
One or more video adjustment unit, each described video adjustment unit is in order to receiving respectively each described signal of video signal with each described new frame per second of described video separation unit output, and promote or reduce each described new frame per second of each described signal of video signal after export each described display unit to.
7. video signal receiving apparatus according to claim 6 is characterized in that, each described new frame per second that each described video adjustment unit is also adjusted each described signal of video signal is each described original frame per second.
8. video signal receiving apparatus according to claim 6 is characterized in that, described video signal receiving apparatus is arranged at respectively in each described display unit, switch, distributor, matrix device or the stretcher.
9. video signal receiving apparatus according to claim 6 is characterized in that, each described display unit has the different video interface.
10. video signal receiving apparatus according to claim 6 is characterized in that, also increases the processing of image format by described video signal receiving apparatus to export each the described display unit with different video interface to.
11. video signal receiving apparatus according to claim 6 is characterized in that, also makes each described display unit show simultaneously the same picture or different pictures by described video signal receiving apparatus.
12. a signal of video signal transmission system is connected with two or more device for image respectively, and the connection of one or more display unit, it is characterized in that described signal of video signal transmission system comprises:
Two or more image signal transmitting devices, signal of video signal in order to the original frame per second with more than one that receives each described device for image output, and each described signal of video signal merged into have one of each described original frame per second and integrate signal of video signal, to send described integration signal of video signal; And
One or more video signal receiving apparatus has the described integration signal of video signal of each described original frame per second in order to reception, and to separate described integration signal of video signal be the signal of video signal with more than one new frame per second;
Wherein each described image signal transmitting device is before merging described integration signal of video signal, each described original frame per second of also adjusting each described signal of video signal is each described new frame per second, each described video signal receiving apparatus after separating described integration signal of video signal, also promote or reduce each described new frame per second of each described signal of video signal after export each described display unit to.
13. signal of video signal transmission system according to claim 12 is characterized in that, each described new frame per second that each described video signal receiving apparatus is also adjusted each described signal of video signal is each described original frame per second.
14. signal of video signal transmission system according to claim 6 is characterized in that, the summation of the described new frame per second of each of each described signal of video signal is less than or equal to the maximum frame per second in the frequency range scope of described sendaisle.
15. signal of video signal transmission system according to claim 6 is characterized in that, each described image signal transmitting device is arranged at respectively in each described device for image, switch, distributor, matrix device or the stretcher that each described signal of video signal is provided.
16. signal of video signal transmission system according to claim 6 is characterized in that, each described video signal receiving apparatus is arranged at respectively in each described display unit, switch, distributor, matrix device or the stretcher.
17. signal of video signal transmission system according to claim 6 is characterized in that, also increases the processing of image format by each described video signal receiving apparatus to export each the described display unit with different video interface to.
18. signal of video signal transmission system according to claim 6 is characterized in that, also makes each described display unit show simultaneously the same picture or different pictures by each described video signal receiving apparatus.
19. an image signal transmission method is applicable to the transmission between two or more image signal transmitting devices and the one or more video signal receiving apparatus, it is characterized in that described image signal transmission method includes the following step:
The original frame per second of more than one of the signal of video signal that receives separately by each described image signal transmitting device adjustment is more than one new frame per second;
Merging each the described signal of video signal with each described new frame per second by each described image signal transmitting device is to have one of each described original frame per second to integrate signal of video signal; And
It is extremely long-range to send the described integration signal of video signal with each described original frame per second by each described image signal transmitting device and a sendaisle.
20. image signal transmission method according to claim 19 is characterized in that, the summation of the described new frame per second of each of each described signal of video signal is less than or equal to the maximum frame per second in the frequency range scope of described sendaisle.
21. image signal transmission method according to claim 19 is characterized in that, has the described integration signal of video signal of each described original frame per second in transmission to long-range step, also includes:
Receive the described integration signal of video signal with each described original frame per second by each described many video signal receiving apparatus;
Separating the described integration signal of video signal with each described original frame per second by each described video signal receiving apparatus is each the described signal of video signal with each described new frame per second; And
By each described video signal receiving apparatus promote or reduce each described new frame per second of each described signal of video signal after export each described display unit to.
22. image signal transmission method according to claim 19 is characterized in that, also increases the processing of image format by each described video signal receiving apparatus to export each the described display unit with different video interface to.
23. image signal transmission method according to claim 19 is characterized in that, also makes each described display unit show simultaneously the same picture or different pictures by each described video signal receiving apparatus.
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