CN1988597A - TV receiver for automatic regulating signal synchronization and its regulating method - Google Patents
TV receiver for automatic regulating signal synchronization and its regulating method Download PDFInfo
- Publication number
- CN1988597A CN1988597A CNA2005100480902A CN200510048090A CN1988597A CN 1988597 A CN1988597 A CN 1988597A CN A2005100480902 A CNA2005100480902 A CN A2005100480902A CN 200510048090 A CN200510048090 A CN 200510048090A CN 1988597 A CN1988597 A CN 1988597A
- Authority
- CN
- China
- Prior art keywords
- signal
- frame number
- audio
- audio signal
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to one kind of televisions and its regulating method, which can automatically adjust the synchronization of the image and audio signals, then output the synchronized image and audio signals. The television includes a control unit which is used to control the synchronization about the video signals from imaging processor and the audio signals from audio processor, and a signal synchronizing unit which is used to detect a delay value of frame images offered by the video processor according to the controlling of control unit, and to delay the frames of audio signals output from audio processor according to the above delay value in order to obtain an synchronized output of the image signals and audio signals.
Description
Technical field
The present invention relates to television receiver; Especially relate to and to regulate the synchronization of picture signal and audio signal automatically, remove to export a kind of television receiver and the control method thereof that obtain synchronized images signal and audio signal then.
Background technology
Along with the develop rapidly of technology such as electricity, electronics, computer and communication, comprise that the multimedia field that image or sound equipment etc. synthesize the information of various forms also obtained huge development.In the process that information communication develops rapidly, be called as the current era of digital revolution, the storage of information and the form of existence just carry out the transition to digitlization from analog form.Image need be than relatively large information; Along with being used for the development of dynamic image compression standard MPEG (Moving Picture Experts Group) technology of compressed digital video information, the size of DID is diminishing gradually; Progressively in all fields, for example in the every field such as computer, broadcasting, household electrical appliance, communication, be suitable for digital video and audio frequency widely at present; And the digital device of a collection of suitable digital technology appearred.
Wherein, broadcasting and TV in daily life, the information spreading medium as easily and effectively has important status.
This traditional television receiver structure as shown in Figure 1.
As shown in Figure 1, television receiver is made of following several sections, is provided with an analog to digital converter 101 that is:, is used for analog picture signal is converted to data image signal; Be provided with a Video processing portion 102, it will be processed into the signal form that an energy shows at picture (not shown) to the data image signal from analog to digital converter 101 outputs; Be provided with an audio treatment part 103, it will become the signal form of an energy in the enterprising line output of loud speaker (not shown) to Audio Signal Processing; Be provided with an image efferent 104, it will output to picture to the picture signal of Video processing portion 102 outputs; Also be provided with an amplifier 105, it will output to loud speaker after will amplifying the audio signal of audio treatment part 103 outputs.
Video processing portion 102 carries out a series of signal processing after analog to digital converter 101 receives data image signal; Picture signal will postpone the regular hour for this reason.In order to compensate the delay of sort signal, in Video processing portion 102, calculate the time of delay to picture signal by experiment; Then be set in the Video processing portion 102 time of delay of calculating, and regulate the time of delay of the audio signal that obtains handling by audio treatment part 103.That is to say that Video processing portion 102 will go to regulate audio treatment part 103, make time of delay that is set through experimental verification of delayed audio signal.Therefore audio treatment part 103 will require to go to postpone audio signal according to the time of delay that receives from Video processing portion 102, and then go output.
But, as described above, be worth Jian Yan signal delay time by experiment audio signal and picture signal are carried out under the synchronous situation, if allow Video processing portion 102 work long hours, its performance will descend so, and also can change the time of delay of picture signal.Therefore, if in traditional television receiver, done like that, according to signal delay time of prior setting postponing audio signal, make picture signal and audio signal that can not be correct be carried out synchronously, the result can produce shape of the mouth as one speaks stationary problem.
Summary of the invention
The present invention develops in order to solve the above problems.The object of the present invention is to provide and a kind ofly can regulate picture signal and synchronized television receiver of audio signal and control method thereof automatically.
Another object of the present invention is to provide a kind of television receiver and control method thereof, and it can regulate the time of delay of the frame of audio signal automatically according to the frame number of the picture signal that is delayed, so that output obtains synchronized images signal and audio signal.
Another object of the present invention is to provide a kind of television receiver and control method thereof, and it can regulate the synchronization of picture signal and audio signal automatically, goes output to obtain synchronized images signal and audio signal then, to prevent shape of the mouth as one speaks stationary problem.
In order to solve the problem that prior art exists, the technical solution used in the present invention is: the automatic synchronous television receiver of conditioning signal promptly receives the composite picture signal that sends from TV station by tuner; By Video processing portion the image signal transformation from tuner output is become a signal that is suitable for picture then; Also will be transformed into a television receiver that is suitable for the signal of loud speaker to audio signal from tuner output by audio treatment part, comprise following structure: be provided with control structure, be used for controlling from the synchronization of the audio signal of the picture signal of Video processing portion output and audio treatment part output; Also be provided with the signal Synchronization structure, it will be according to the control of control structure, the frame delay value of the picture signal that Video processing portion provides will be detected, and according to the frame delay value of the picture signal that detects, postpone from the frame of the audio signal of audio treatment part output, obtain synchronized images signal and audio signal so that export one.
Described signal Synchronization structure comprises following structure, that is: be provided with a frame count portion, it will be according to the control requirement of control part, write down from the frame number of the picture signal of Video processing portion output with from the frame number of the audio signal of audio treatment part output, the frame number value with record outputs to control part then; Be provided with a signal delay portion, it will be according to the requirement of control part, the delayed audio signal regular hour from audio treatment part output;
Described frame count portion will remove to write down the picture signal that is transfused to and the frame number of audio signal, but only go to write down certain number.
Described frame count portion removes to write down the frame number from the audio signal of audio treatment part output; If write down a certain number of above frame number, so just remove to stop writing down frame number from the picture signal of Video processing portion output.
Described control part removes the frame number of picture signal frame number that relatively is recorded and the audio signal that is recorded; Then by control signal delay portion, the frame that postpones audio signal according to the corresponding requirements of the frame number difference of relatively coming out.
The control method of the television receiver that automatic conditioning signal is synchronous, promptly be used for regulating from the picture signal of Video processing portion output and the synchronized method of exporting from audio treatment part of audio signal, comprise following several steps, that is: be provided with one and go respectively to write down from Video processing portion with from the step of the frame number of the frame number of the picture signal of audio treatment part output and audio signal; Be provided with one when the audio signal frame number that is recorded is consistent with the frame number of regulation, will go the step of interruption logging; Also be provided with one and remove the picture signal that more write down and the frame number of audio signal, how many frame numbers of seeing picture signal lacks than the frame number of audio signal, poor then what just go to postpone what step of audio signal.
Described when the audio signal frame number that is recorded is 10, remove the frame number of recording image signal and audio signal.
If the frame number of picture signal that is recorded and audio signal is identical, directly export with regard to not going to postpone audio signal so.Advantage and effect that the present invention had are: the present invention is by the control of video handling part, the frame of delaying audio signal according to the frame number of the picture signal that is delayed automatically, therefore can export synchronized images signal and audio signal, provide a kind of sense of being in the action for looking the hearer, thereby significantly improve the commodity of products energy.
Description of drawings
Fig. 1 is the structure chart of traditional tv receiver.
Fig. 2 is the structure chart of the synchronous television receiver of the automatic conditioning signal of the present invention.
Fig. 3 is the picture signal and the characteristic audio signal curve chart of television receiver of the present invention.
Fig. 4 is the control method flow chart of the synchronous television receiver of the automatic conditioning signal of the present invention.
The symbol description of accompanying drawing major part
200: television receiver 201: tuner
202: picture 203: loud speaker
204: analog to digital converter 205: Video processing portion
206: audio treatment part 207: control part
208: frame count portion 209: signal delay portion
210: image efferent 211: amplifier
Embodiment
Below, describe embodiments of the invention in detail with reference to accompanying drawing.
Fig. 2 is the synchronous television receiver structure chart of the automatic conditioning signal of the present invention.
As shown in Figure 2, television receiver 200 of the present invention comprises control structure and signal Synchronization structure, is provided with a tuner 201 that is:, and it will receive the composite picture signal that sends from TV station, and the picture signal and the audio signal of output simulation; Be provided with a picture 202 that is used for display image signals; Be provided with a loud speaker 203 that is used for output audio signal; Be provided with an analog to digital converter 204, it will be transformed into data image signal to the analog picture signal from tuner 201 outputs; Be provided with a Video processing portion 205, it will be processed into a signal form that is suitable for picture 202 to the data image signal from analog to digital converter 204 outputs; Be provided with an audio treatment part 206, it will become a signal that is suitable for loud speaker 203 to the Audio Signal Processing from tuner 201 outputs; Also be provided with a control part 207, it will be controlled and receive and the output composite picture signal, and go to control from the picture signal of Video processing portion 205 outputs with from the synchronization of the audio signal of audio treatment part 206 outputs.
And, television receiver 200 of the present invention also comprises following several sections, that is: be provided with a frame count portion 208, it will be according to the control of control part 207, write down from the frame number of the picture signal of Video processing portion 205 output with from the frame number of the audio signal of audio treatment part 206 outputs, the frame number value with record outputs to control part 207 then; Be provided with a signal delay portion 209, it will be according to the requirement of control part 207, the delayed audio signal regular hour from audio treatment part 206 outputs; Be provided with an image efferent 210, it will output to picture 202 to the picture signal from 205 outputs of Video processing portion; Also be provided with an amplifier 211, it will output to loud speaker 203 after will being amplified the audio signal that obtains postponing by signal delay portion 209.
Tuner 201 will receive the composite picture signal that transmits by a plurality of channels, and go to export in receiving channels the composite picture signal by the specified channel of control part 207.At this moment, tuner 201 will output to analog to digital converter 204 to the analog picture signal that is included in the composite picture signal, and audio signal output is arrived audio treatment part 206; But, as shown in Figure 3, will go picture signal and audio signal more afterwards synchronously to export.That is to say the picture signal of output and the characteristic of audio signal after Fig. 3 shows and obtains synchronously by tuner 201; Be to go pictorial images signal and audio signal respectively according to different frame numbers.
Video processing portion 205 will carry out a series of signal processing for the data image signal that obtains conversion by analog to digital converter 204 is become a signal scheme that is suitable for picture 202; In the process of this signal processing, picture signal will postpone the regular hour.
Audio treatment part 206 will be exported after will being transformed into the audio signal from tuner 201 output an audio signal that is suitable for loud speaker 203.At this moment, audio treatment part 206 is in the process of figure signal, and audio signal is also obtained to be postponed.
Like this, by the picture signal and the audio signal of Video processing portion 205 and audio treatment part 206, obtain respectively postponing; But on the characteristic of signal, compare with audio treatment part 206, will carry out more complicated signal processing in Video processing portion 205, therefore compare with audio signal, picture signal will postpone manyly.In order to prevent this shape of the mouth as one speaks stationary problem that causes owing to the delay of picture signal, in the present invention, to automatically remove to postpone the frame number of audio signal according to the length of delay of the frame number of picture signal, thereby go output to obtain synchronized images signal and audio signal.
Control part 207 goes to control the channel selection of tuner 201 in order to play the channel of user's appointment, allows it receive and export the composite picture signal of user's specified channel.In addition, when tuner 201 receives the composite picture signal of specific channel, and then go output image signal and audio signal, so, will go to drive frame count portion 208, allow the frame number of its recording image signal and audio signal by control structure.If the frame number by frame count portion 208 has write down picture signal and audio signal so, removes the frame number of movement images signal and audio signal by control structure, and according to result relatively, postpones audio signal by signal delay portion 209.
Frame count portion 208 removes to write down the frame number from the picture signal of Video processing portion 205 outputs according to the requirement of control part 207, removes to write down the frame number from the audio signal of audio treatment part 206 outputs simultaneously, with the frame number of record, outputs to control part 207 then.Wherein, frame count portion 208 will remove to write down the frame number of the picture signal and the audio signal of input; But the frame number of the audio signal of exporting from audio treatment part 206, only remove to write down 10 frame numbers.In the process of record frame number, if write down the frame number of 10 audio signals, frame count portion 208 just removes to stop to write down the frame number from the picture signal of Video processing portion 205 outputs so, and the frame number of audio signal that has up to the present write down and picture signal is outputed to control part 207.
Only remove to write down the frame number of 10 audio signals in the present invention, this be because usually since the frame number difference of audio signal that the delay of signal takes place and picture signal 4～6 degree, so the frame number of the audio signal that also can right judgement be delayed of the frame number that only goes to write down 10 audio signals and picture signal is poor.But, do not stipulate only to go to write down the frame number of 10 audio signals in the present invention.
Signal delay portion 209 is the control requirements according to control part 207, the delayed audio signal regular hour; Now this is described in detail as follows.
The picture signal frame number that control part 207 relatively is recorded by frame count portion 208 and the frame number of audio signal; But will be the frame number of the picture signal that relatively is recorded of benchmark with 10 frame numbers of the audio signal that is recorded.
Result relatively compares with the frame number of the audio signal that is recorded, if the frame number of picture signal lacks 2, control part 207 will go to control signal delay portion 209 so, make 2 frame numbers of delayed audio signal.Then, signal delay portion 209 will remove to delay 2 frame numbers of audio signal from audio treatment part 206 outputs, and then output to amplifier 211.
If result relatively compares with the frame number of the audio signal that is recorded, few 4 of the frame number of the picture signal that is recorded, control part 207 will go to control signal delay portion 209 so, make 4 frame numbers of delayed audio signal.Signal delay portion 209 removes to delay 4 frame numbers of audio signal from audio treatment part 206 outputs, and then outputs to amplifier 211 then according to the control requirement of the delay of control part 207.
Below with reference to flow chart, the synchronization process that forms audio signal and picture signal in having the television receiver of the present invention of said structure and function is described.
Fig. 4 is a flow chart of the synchronous television receiver control method of the automatic conditioning signal of the present invention.
As shown in Figure 4, if from tuner 201 output image signals and audio signal, control part 207 will go to drive frame count portion 208 (S401) so.Under this driving condition, frame count portion 208 is with the picture signal frame number and the audio signal frame number (S402) that go respectively to write down from Video processing portion 205 and audio treatment part 206 outputs.
At this moment, frame count portion 208 will go to judge whether the audio signal frame number that is recorded has reached 10 frame numbers (S403); If the result who judges, the frame number that is recorded does not reach 10 as yet, and frame count portion 208 will continue the frame number of recorde audio signal so.
If the frame number of the audio signal that the result who judges is recorded has reached 10, frame count portion 208 will remove to stop writing down the picture signal frame number of exporting from Video processing portion 205 so; And up to the present the audio signal of record and the frame number value of picture signal output to control part 207 (S404).
Then, control part 207 will be a benchmark with 10 of audio signal frame numbers, come the frame number of movement images signal; And, judge with audio signal and compared delayed image signal several frame numbers (S405) by result relatively.If the result images signal of judging does not postpone, control part 207 will go to control signal delay portion 209 not go to postpone audio signal (S406) so.
Judged result in deterministic process (S405), if with audio signal 3 frame numbers of having compared delayed image signal, control part 207 will go to control signal delay portion 209 so, allow 3 frame numbers of delayed audio signal; Signal delay portion 209 will will output to amplifier 211 (S407) after the audio signal of audio treatment part 206 outputs is delayed 3 frame numbers again according to the delay control requirement of control part 207.
According to embodiment technological thought of the present invention has been carried out specific description; But embodiment only is used for illustrating usefulness, notice that it is not used for limiting.In addition, if the personnel of technical field of the present invention can understand in the scope of technological thought of the present invention, can make various embodiments.
Claims (8)
1, the automatic synchronous television receiver of conditioning signal promptly receives the composite picture signal that sends from TV station by tuner; By Video processing portion the image signal transformation from tuner output is become a signal that is suitable for picture then; Also the audio signal from tuner output is transformed into a television receiver that is suitable for the signal of loud speaker, it is characterized in that comprising following structure by audio treatment part:
Be provided with control structure, be used for controlling from the synchronization of the audio signal of the picture signal of Video processing portion output and audio treatment part output;
Also be provided with the signal Synchronization structure, it will be according to the control of control structure, the frame delay value of the picture signal that Video processing portion provides will be detected, and according to the frame delay value of the picture signal that detects, postpone from the frame of the audio signal of audio treatment part output, obtain synchronized images signal and audio signal so that export one.
2, the synchronous television receiver of automatic conditioning signal according to claim 1 is characterized in that described signal Synchronization structure comprises following structure, that is:
Be provided with frame count portion, it will be according to the control requirement of control part, writes down from the frame number of the picture signal of Video processing portion output with from the frame number of the audio signal of audio treatment part output, and the frame number value with record outputs to control part then;
Be provided with signal delay portion, it will be according to the requirement of control part, the delayed audio signal regular hour from audio treatment part output.
3, the synchronous television receiver of automatic conditioning signal according to claim 2 is characterized in that described frame count portion will remove to write down the picture signal that is transfused to and the frame number of audio signal, but only goes to write down certain number.
4, the synchronous television receiver of automatic conditioning signal according to claim 2 is characterized in that described frame count portion removes to write down the frame number from the audio signal of audio treatment part output; If write down a certain number of above frame number, so just remove to stop writing down frame number from the picture signal of Video processing portion output.
5, the synchronous television receiver of automatic conditioning signal according to claim 2 is characterized in that described control part removes the frame number of picture signal frame number that relatively is recorded and the audio signal that is recorded; Then by control signal delay portion, the frame that postpones audio signal according to the corresponding requirements of the frame number difference of relatively coming out.
6, the automatic control method of the synchronous television receiver of conditioning signal promptly is used for regulating from the picture signal of Video processing portion output with from the synchronized method of audio signal of audio treatment part output, it is characterized in that comprising following several steps, that is:
Being provided with one goes respectively to write down from Video processing portion with from the step of the frame number of the frame number of the picture signal of audio treatment part output and audio signal;
Be provided with one when the audio signal frame number that is recorded is consistent with the frame number of regulation, will go the step of interruption logging;
Also be provided with one and remove the picture signal that more write down and the frame number of audio signal, how many frame numbers of seeing picture signal lacks than the frame number of audio signal, poor then what just go to postpone what step of audio signal.
7, the control method of the synchronous television receiver of automatic conditioning signal according to claim 6 is characterized in that describedly when the audio signal frame number that is recorded is 10, removes the frame number of recording image signal and audio signal.
8, the control method of the synchronous television receiver of automatic conditioning signal according to claim 7 is characterized in that directly exporting with regard to not going to postpone audio signal so if the frame number of picture signal that is recorded and audio signal is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100480902A CN1988597A (en) | 2005-12-20 | 2005-12-20 | TV receiver for automatic regulating signal synchronization and its regulating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100480902A CN1988597A (en) | 2005-12-20 | 2005-12-20 | TV receiver for automatic regulating signal synchronization and its regulating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1988597A true CN1988597A (en) | 2007-06-27 |
Family
ID=38185218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100480902A Pending CN1988597A (en) | 2005-12-20 | 2005-12-20 | TV receiver for automatic regulating signal synchronization and its regulating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1988597A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544130A (en) * | 2013-10-24 | 2014-01-29 | 北京时代奥视数码技术有限公司 | Multi-window display device and multi-window display method |
-
2005
- 2005-12-20 CN CNA2005100480902A patent/CN1988597A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544130A (en) * | 2013-10-24 | 2014-01-29 | 北京时代奥视数码技术有限公司 | Multi-window display device and multi-window display method |
| CN103544130B (en) * | 2013-10-24 | 2016-01-20 | 北京时代奥视科技股份有限公司 | A kind of windows display equipment and display packing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2063662B1 (en) | Multimedia apparatus and synchronization method thereof | |
| CN101448164A (en) | Audio processing apparatus, video processing apparatus, and control method thereof | |
| US9489980B2 (en) | Video/audio synchronization apparatus and video/audio synchronization method | |
| US9794451B2 (en) | Cloud server, control equipment and method for audio and video synchronization | |
| CN101690216B (en) | Transmission device, information transmission method, reception device, and information processing method | |
| CN106131669B (en) | A kind of method and device merging video | |
| CN104902317A (en) | Audio video synchronization method and device | |
| EP2993860B1 (en) | Method, apparatus, and system for presenting communication information in video communication | |
| US20140376873A1 (en) | Video-audio processing device and video-audio processing method | |
| WO2014155377A1 (en) | Method and system for automatically adding subtitles to streaming media content | |
| CN1973536A (en) | Video-audio synchronization | |
| CN101753942A (en) | Video reproducing apparatus, a video system, and a reproduction speed converting method of video | |
| US20130128953A1 (en) | Reproduction apparatus, reproduction method, and program | |
| JP4693918B2 (en) | Image quality adjusting apparatus and image quality adjusting method | |
| CN109379619A (en) | Sound draws synchronous method and device | |
| CN103873919A (en) | Information processing method and electronic equipment | |
| CN1520181A (en) | Appts of synchronusly reading video data and auxliary data its method and related products | |
| CN204305260U (en) | The television set of a kind of video and wireless sound box Audio Matching | |
| KR20130044062A (en) | Remote video transmission system | |
| CN1988597A (en) | TV receiver for automatic regulating signal synchronization and its regulating method | |
| CN103731715A (en) | Television receiver capable of automatically adjusting signal synchronization | |
| WO2003043314A1 (en) | Image pickup apparatus | |
| CN103763457A (en) | Signal synchronization automatically adjustable television receiver and adjustment method thereof | |
| CN115767158A (en) | Synchronous playing method, terminal equipment and storage medium | |
| CN103731616A (en) | Method for automatically adjusting synchronization of image signals and audio signals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |