CN1984297A - A/V signal recording controller and controlling method - Google Patents
A/V signal recording controller and controlling method Download PDFInfo
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- CN1984297A CN1984297A CN 200510111378 CN200510111378A CN1984297A CN 1984297 A CN1984297 A CN 1984297A CN 200510111378 CN200510111378 CN 200510111378 CN 200510111378 A CN200510111378 A CN 200510111378A CN 1984297 A CN1984297 A CN 1984297A
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Abstract
The method comprises: when recording the broadcast program containing caption information with optical disc, the caption interval containing unsuitable words or articles is detected; prohibiting to record the caption data containing the unsuitable words or articles.
Description
[technical field]
This invention is about A/V signal recording control device and method thereof, more particularly be meant: when the broadcast singal that contains captions (Caption) data is carried out disk recording, can prevent to record the A/V signal recording control device and the method thereof of the captions that are not suitable for content.
[background technology]
As a rule, the vision signal specification-MPEG mode that is write down on the digital versatile disc (DVD:Digital Versatile Disc) is to utilize 32 subchannels (sub channel) to provide sprite (sub picture) data to realize caption function.Its purpose is to insert multi-lingual captions so that the image that digital versatile disc writes down can both be watched by whole world country.
Simultaneously, the captions that are not recorded on the subchannel of digital versatile disc can be recorded in the user data area of the formative group of pictures of mpeg data (Group of Picture is called for short GOP) layer as caption data.Its purpose is: then export as audio frequency when being mother tongue, and not as the sub-image data additional records captions of subchannel, also caption data can be recorded in the user area with the convenient audience that can't hear audio frequency as deaf individual.
As mentioned above, the caption data that is recorded is not directly exported from the optical disc reproducing device as subtitle image, the caption signal that from the external device (ED) of TV with caption decoding function or video cassette tape recorder (cassette tape recorder) etc. and so on, extracts on the vision signal to be carried, synthesize on main video signal as the literal vision signal, thereby can in display frame, be shown as captions.
Simultaneously, such as the digital versatile disc that can record external video/audio-frequency information, it can record the video/audio information of the television program of selecting from external tuner, and the caption data that exists in the relevant broadcast program also can be recorded in the lump.
When above-mentioned caption data is the NTSC mode at analog broadcast signal, the information segment (Fragment) that can modulate 2 bytes carries it on horizontal-drive signal of the particular specification position in vertical synchronizing signal, caption data can be carried like this and transmit on this horizontal-drive signal.
When the video disc recording machine is recorded on the CD in the video/audio information with above-mentioned digital broadcast program, can be to containing the encoding video signal of caption information, carry out record by photologging unit-VOBU (VideoObject Unit) unit of digital versatile disc.
But, this video disc recording machine is when recording the broadcast program that contains caption data, even caption data contains word violence or unfavorable or article, it is not recorded on the CD with still not screening yet, so under the state of playing the CD of having recorded relevant broadcast program, can because comprised in the caption data be not suitable for word or article and bring unhappiness to the audience, and with the relevant corresponding audio sound of captions that is not suitable for word or article also have no the screening go on record, to such an extent as to can have no restrictedly to play when playing, thereby meeting influence audience's the mood of listening to because of the voice output that is not suitable for content.
[summary of the invention]
Therefore, this invention finds out for addressing the above problem, purpose is to provide A/V signal recording control device and method thereof, that is: when the broadcast program that contains captions (Caption) information is carried out disk recording, detect between the subtitle region of unfavorable word or article, forbid on CD, recording relevant A/V signal recording control device and the method thereof that is not suitable for the caption data of content.
Another purpose of this invention is to be provided at carries out under the state of disk recording the broadcast program that contains caption information, when between the subtitle region of retrieval unfavorable word or article, to the relevant subtitle region that is not suitable for content between corresponding audio data recording interval take the A/V signal recording control device and the method thereof of silent sound processing.
To achieve these goals, the device of this invention is meant the device of recording the video/audio signal that contains caption data on recording medium, and it comprises following two parts: the captions checkout equipment that is used for detecting in above-mentioned vision signal caption data; If in above-mentioned detected caption data, detect the caption data that is not suitable for content, then forbid writing down the relevant control appliance that is not suitable for the caption data of content.
For achieving the above object, the method for this invention is meant the method for recording the video/audio signal that contains caption data on recording medium, and it comprises following three steps: the step that detects caption data in the above-mentioned vision signal of recording; Retrieval has or not the step that has the caption data that is not suitable for content in above-mentioned detected caption data; If detect the above-mentioned caption data that is not suitable for content, then forbid writing down the relevant step that is not suitable for the caption data of content.
In sum, the effect of this invention is: when the radio program production that will contain caption data is on CD, if in the caption data of the broadcast program of recording, detect and be not suitable for word, then do not write down and contain the relevant caption data that is not suitable for word, do not write down and the relevant corresponding voice data of caption data that is not suitable for word, thereby can prevent recording caption information and the audio-frequency information in the content of being not suitable in advance at broadcast program.
[description of drawings]
Fig. 1 is that video disc recording/reading device that the A/V signal recording control device of this invention is suitable for constitutes schematic diagram.
Fig. 2 is the field information schematic diagram of the MPGE data flow physical layer of digital broadcasting.
Fig. 3 is the relevant view that contains in the broadcast program of recording between all subtitle region that are not suitable for word and take silent sound to handle to corresponding audio interval therewith of eliminating of this invention desirable embodiment.
Fig. 4 is the relevant view that contains in the broadcast program of recording between all subtitle region that are not suitable for word and take silent sound to handle to corresponding audio interval therewith of eliminating of other desirable embodiment of this invention.
Fig. 5 is that other desirable embodiment of this invention is relevant to the show state schematic diagram of having eliminated on the display image under the state that is not suitable for word.
Fig. 6 is the captions recording control method operational flowchart of this invention.
[embodiment]
Be elaborated to having this invention that as above constitutes with reference to the accompanying drawings.
That is, Fig. 1 is that video disc recording/reading device that the A/V signal recording control device of this invention is suitable for constitutes schematic diagram.
As shown in Figure 1, the video disc recording/reading device of this invention comprises following part: be used for CD 10 identifying recording layers or from the recording surface of CD 10 light picker 12 of detection record signal; Be used to rotate, the drive portion 16 of driving main shaft motor 14 and above-mentioned light picker 12; By the servo error signal of above-mentioned light picker 12 (F.E, T.E) and the rotary speed of CD 10 control the SERVO CONTROL portion 18 that above-mentioned drive portion 16 drives; The high frequency regeneration signal that is used to play from above-mentioned light picker 12 information is carried out the filtering typing, and the RF signal processing part 20 of outputting drive voltage; The numeral of the original data that are used to play to decoding from the binary data of above-mentioned RF signal processing part 20, being reduced into reads signal processing part 22; After the video signal conversion of the broadcast singal that will import becomes numeral, employing is encoded by video encoder 26 such as the MPEG mode, so that it has the resolution and the pixel depth of specifying the mode of recording, and after the audio signal with above-mentioned broadcast singal is transformed into numeral, encode by audio coder 28, coded data conversion respectively and be multiplexed into grouped element data flow (the Packetized Elementary Stream of Voice ﹠ Video, be called for short PES) packet, be transformed into the digital record signal processing part 24 of the bit stream of record formatization then; In the broadcast singal of above-mentioned digital record signal processing part 24, detect the captions test section 30 of the 2 byte caption datas of being modulated by synchronizing signal; Output LD drive signal in the driving data of above-mentioned digital record signal processing part 24 and RF signal processing part 20 inputs and the driving voltage is to regulate the LD driver 32 of above-mentioned light picker 12 light energies; Be not suitable for the memory 34 that word is stored as database (data base) form being used to detect be not suitable for content words a plurality of; Forbid recording and contain between the subtitle region that is not suitable for word in the broadcast program data of recording, and to and this be not suitable between the subtitle region of word corresponding voice data and take silent sound to record the microcomputer of processing.
The word data that whether contain above-mentioned memory 34 in above-mentioned captions test section 30 detected caption datas each word that above-mentioned microcomputer 36 is relatively comprised in real time, if detect the word that is not suitable for the word data that contains in the above-mentioned memory 34, then do not encode to containing the relevant caption data that is not suitable for word by controlling above-mentioned digital record signal processing part 24.
In addition, be not suitable for word, then take silent sound to record processing with the interval corresponding voice data of relevant captions by controlling 28 pairs of above-mentioned audio coders if contain between the specific subtitle region of above-mentioned microcomputer 36 caption datas.
Fig. 6 is the captions recording control method operational flowchart of this invention.
Below the flow chart of this invention shown in Figure 6 the 1st embodiment and the device operation of Fig. 1 are elaborated in the lump.
At first, in digital record signal processing part 24, the specific broadcast singal of selecting is carried out digital conversion, coding, modulation from tuner, be recorded on the CD 10 by the PES data packet form that can be recorded on the CD 10 by light picker 12, if contain caption information in the broadcast singal of relevant broadcast program, the caption data of then also will being correlated with is recorded on the CD 10 step S10 in the lump.
As shown in Figure 2, there is the GOP layer in above-mentioned caption data in sequence layer (Sequence Layer) bottom of PES (Packetized Elementary Stream) packet, and the caption information of associated picture layer (Picture Layer) image is present in user 21 data fields in the GOP layer, and above-mentioned detected caption information is recorded on this field (field).Above-mentioned caption information district comprises: row 21 indicating devices (Line21-Indicator) of the initial symbol of the user data of 4 bytes (Uesr-data-start-Code), 2 bytes, row 21 data (Line21-Data).It is meant under the situation that is transformed into analog video signal when reading the method that is used to carry caption information of specifying.
Simultaneously, 30 pairs of caption datas at the broadcast program of above-mentioned digital record signal processing part 24 codings of captions test section detect in real time, extract each word.Whether the word of 36 retrievals of microcomputer detected caption data from above-mentioned captions test section 30 comprises is not suitable for word data, step S11 in the memory 34.
Above-mentioned microcomputer 36 is judged the word that is not suitable for that whether detects in the above-mentioned memory 34 in the caption data word of the above-mentioned broadcast program of recording, step S12, if judged result is to have detected to be not suitable for word, then control the video encoder 26 of above-mentioned digital record signal processing part 24, make and contain the relevant captions that are not suitable for word and be not encoded step Sl3.If judge not detect unfavorable word, change step S11 over to.
Above-mentioned microcomputer 36 preferably substitutes the captions number deleted between the above-mentioned subtitle region that is not suitable for word and gathers around, and record is used for showing as " " and so on the mark literal of elimination captions.
In addition, above-mentioned microcomputer 36 is by the above-mentioned audio decoder 28 of control, to and deleted between the above-mentioned subtitle region that is not suitable for word corresponding audio signal interval and taked silent sound coding to carry out record, carry out silent sound and handle step S14 related audio is interval with this.
Promptly, as shown in Figure 3, above-mentioned microcomputer 36 detects the word of the caption data of broadcast program respectively, if detect in the word between specific subtitle region and be not suitable for word, then eliminating relevant captions is not recorded on the CD 10 it, voice data between the interval corresponding audio zone of deletion simultaneously and this deleted caption data takes silent sound to handle.
In containing the interval that the above-mentioned captions that are not suitable for word show continuously, can take silent sound to handle to audio signal here, in the A/V interval of input.
Simultaneously, as shown in Figure 4, be not suitable for word if in caption data, detect, then in relevant captions interval, only the caption data that is not suitable for word is deleted processing, the residue caption data in relevant captions interval can carry out normal recordings, and to contain the sound processing of write from memory of the above-mentioned whole related intervals that are not suitable for the interval corresponding voice data of the caption data interval of word.
Then, above-mentioned microcomputer 36 judges whether the recording of broadcast program of containing above-mentioned caption information finishes, and step S15 finishes if judged result is relevant recording, then finishes to record, and formulates the navigation information of above-mentioned broadcast program, step S16.Do not finish if record, return step S11.
Then, as shown in Figure 5, in the time will playing the CD 10 of recording the broadcast program that contains above-mentioned caption information, only deletion is not suitable under the state that word writes down again in caption data, such as "
(we must say good-bye, divorce! ) " and so on specific caption data in, if "
(divorce) " be to be not suitable for word, then on image, show "
" and so on captions, be not suitable for that at this moment word is replaced with " " the mark literal.Meanwhile, with contain the interval corresponding voice data of the caption data that is not suitable for word that is displayed on the image because of being that the sound of writing from memory is not output.
Simultaneously, this invention not only is confined to above-mentioned typical desirable embodiment, and the practitioner who grasps correlative technology field knowledge can carry out various improvement, change, replacement or additional fully in the scope that does not break away from this invention main idea.Certainly, this improvement, change, replacement or additionally belong to following patent claim, and its technological thought also belongs to this invention.
Claims (11)
1, A/V signal recording control device, described device are that the video/audio signal that will contain caption data is recorded in recording medium, comprise following two parts:
In above-mentioned vision signal, detect the captions checkout equipment of caption data;
If in above-mentioned detected caption data, detect the caption data that is not suitable for content, then forbid writing down the relevant control appliance that is not suitable for the caption data of content.
2, as claim item 1 described A/V signal recording control device, it is characterized in that,
Above-mentioned control appliance is used for being not suitable in above-mentioned detected caption data retrieval the caption data of content.
3, as claim item 2 described A/V signal recording control device, it is characterized in that described device also comprises:
Memory is used for storing unfavorable word with the database form;
Above-mentioned control appliance is retrieved each word in the above-mentioned detected caption data according to the word that is not suitable in the above-mentioned memory, is not suitable for word to detect.
4, as claim item 2 described A/V signal recording control device, it is characterized in that,
Above-mentioned control appliance forbids writing down all data that contain between the above-mentioned subtitle region that is not suitable for word.
5, as claim item 2 described A/V signal recording control device, it is characterized in that,
Above-mentioned control appliance only forbids that record is not suitable for word detecting the above-mentioned caption data interval that is not suitable for word.
6, as claim item 1 described A/V signal recording control device, it is characterized in that,
Above-mentioned control appliance is forbidden writing down and the above-mentioned corresponding audio signal of caption data that is not suitable for content.
7, A/V signal recording control method, the video/audio signal that described method will contain caption data is recorded in recording medium, comprising:
The 1st step is retrieved caption data in the above-mentioned vision signal of recording;
The 2nd step, whether retrieval exists the caption data that is not suitable for content in above-mentioned detected data;
The 3rd step if detect the above-mentioned caption data that is not suitable for content, then forbids writing down the relevant caption data that is not suitable for content.
8, as claim item 7 described A/V signal recording control methods, it is characterized in that above-mentioned the 2nd step is meant:
According to a plurality of words that are not suitable for that are stored in the database form in the memory, retrieve each word of above-mentioned detected caption data, be not suitable for word to detect.
9, as claim item 8 described A/V signal recording control methods, it is characterized in that above-mentioned the 3rd step is meant:
Forbid writing down all data that contain between the above-mentioned subtitle region that is not suitable for word.
10, as claim item 8 described A/V signal recording control methods, it is characterized in that above-mentioned the 3rd step is meant:
Only forbid in the above-mentioned caption data interval that is not suitable for word that record is not suitable for word detecting to contain.
11, as claim item 7 described A/V signal recording control methods, it is characterized in that above-mentioned the 3rd step also comprises:
Forbid writing down and the above-mentioned step that is not suitable for the corresponding audio signal of caption data of content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510111378 CN1984297A (en) | 2005-12-12 | 2005-12-12 | A/V signal recording controller and controlling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510111378 CN1984297A (en) | 2005-12-12 | 2005-12-12 | A/V signal recording controller and controlling method |
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| Publication Number | Publication Date |
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| CN1984297A true CN1984297A (en) | 2007-06-20 |
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| CN 200510111378 Pending CN1984297A (en) | 2005-12-12 | 2005-12-12 | A/V signal recording controller and controlling method |
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- 2005-12-12 CN CN 200510111378 patent/CN1984297A/en active Pending
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