CN2750605Y - Coder and decoder for video information - Google Patents
Coder and decoder for video information Download PDFInfo
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- CN2750605Y CN2750605Y CN 200420059398 CN200420059398U CN2750605Y CN 2750605 Y CN2750605 Y CN 2750605Y CN 200420059398 CN200420059398 CN 200420059398 CN 200420059398 U CN200420059398 U CN 200420059398U CN 2750605 Y CN2750605 Y CN 2750605Y
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Abstract
The utility model relates to a coder for video-audio information, which is used for formating video-audio informational into more than one universal video-audio frame composed of more than one synchronous audio data packet, more than one control audio data packet, and more than one video-audio data packet. A decoder used for the formatted video-audio information comprises a detector of the synchronous audio data packet, a detector of the control audio data packet, a video information picking-up device and an audio information picking-up device, wherein the detector of the synchronous audio data packet detects the synchronous data in the synchronous audio data packet so as to determine the starting of the universal video-audio frame, the detector of the control audio data packet detects the control data in the control audio data packet, the video information picking-up device picks up the video information in the video-audio data packet, and the audio information picking-up device picks up the audio information in the synchronous audio data packet, the control audio data packet and the video-audio data packet.
Description
[technical field]
The utility model relates to a kind of encoder and decoder of audio and video information, relate in particular to synchrodata, control data, audio-frequency information and video information are suitably formatd, on the recording medium that is stored in low bandwidth or low storage volume, provide the playback of economical and practical audio and video information and the encoder and the decoder of reproduction.
[prior art]
In various recording mediums commonly used now, light memory medium can provide quite big and highdensity storage volume because of the minimum wavelength of laser.Modal light memory medium is a CD (CD) of making the video disc shape, the form that is adopted during according to the character of its stored content and storage data and mainly divide into digital music CD (CD-DA), read-only optical disc (CD-ROM), CD-I (CD-I), video disc (Video-CD) and digital versatile disc (DVD) or the like all kinds.The digital music CD can be used for the recording voice data.Read-only optical disc is to have " Mode 1 " and " Mode 2 " two kinds of data formats, and wherein " Mode1 " is used to store computer data and " Mode 2 " are used for stored voice and image data.CD-I has the real-time interaction function, can be used for stored voice, static images and animation data.Video disc and digital versatile disc then are to utilize Motion Picture Experts Group's technology (MPEG) to come compressed digital video and voice data.
Though video disc and digital versatile disc can store the audio and video information of high power capacity and realize high-quality real-time voice playback and image reproduction, on commercial and show business, obtain significant success, but video disc and digital versatile disc are applied to the record, playback of audio and video information, have following shortcoming during with reproduction unavoidablely.
In order on video disc and digital versatile disc, to write down audio and video information, must use complicated Motion Picture Experts Group's technology to compress processing, so that the huge data volume of audio and video information is stored in the limited recording medium for digital video and voice data.As a result, the circuit design of needed coding method and encoder becomes complicated.Especially bad, for instant reproduction originally was stored in the video-audio data that has compressed on video disc and the digital versatile disc, must use the decoder of particular design and the audio-visual transcriber of special use accordingly.For example, digital versatile disc must could be play by digital versatile disc player (DVD Player), and the audio and video information that can't reproduce on it to be recorded via digital music CD player (CD-DA Player).As everyone knows, the price of digital versatile disc player and manufacturing cost are far above the digital music CD player.This kind price and cost variance obviously are to come from employed complex decoding method of digital versatile disc system and decoder.
[summary of the invention]
Audio and video information equipment is complicated and expensive now, hinders the propagation and the utilization of audio and video information.Especially on child or teen-age amusement and educational applications, more wish to provide a kind of economical and practical audio and video information record, reset, with the solution of reproducing.
Thereby a purpose of the present utility model is to provide a kind of encoder and decoder of audio and video information, can be simply, economical and write down efficiently, reset, with reproduce audio and video information.
Though according to common application of the present utility model is that limited audio and video information is stored in the recording medium of limited capacity, but still quite outstanding audio-visual quality can be provided.In an embodiment of the present utility model, the encoder and the decoder of foundation audio and video information of the present utility model can be applicable to the digital music CD player.Traditionally, the digital music CD only is used to store general voice data, and the digital music CD player only is used to the acoustic information of resetting accordingly.Yet, according to the encoder of audio and video information of the present utility model with separate musical instruments used in a Buddhist or Taoist mass one suitable audio and video information form be provided, that is general audio-visual frame can be in order to store audio and video information on the digital music CD efficiently simultaneously.Therefore, can realize promoting the playback and the reproduction of high-quality audio and video information the propagation of audio and video information and how audio-visual possibility of its application is provided by digital music CD player cheaply.
Foundation encoding and decoding device of the present utility model especially is fit to be applied to the recording medium of low bandwidth or low storage volume, for example flash memory of digital music CD, mobile phone mobile phone or person like that.Especially be fit to be reproduced on the image display of small size or low resolution according to stored video information on the recording medium of the present utility model, for example the LCD of 216 (pixel) * 160 (pixels).
According to an aspect of the present utility model, a kind of encoder of audio and video information is provided, be used to format audio-frequency information with a plurality of character groups and video information with a plurality of character groups.This encoder comprise together go on foot packets of audio data generator, a control audio packet generator, with a video-audio data packet generation device.Synchronized audio data packet generation device is set at least one synchronization field in this audio-frequency information, to form at least one synchronized audio data bag.Each of this at least one synchronized audio data bag is at least one the bit group that has in this audio-frequency information.Control audio packet generator is set at least one control field in this audio-frequency information, to form at least one control audio packet.Each of this at least one control audio packet is at least one the bit group that has in this audio-frequency information.Video-audio data packet generation device is set at least one video field and is merged this audio-frequency information and this video information, to form at least one video-audio data bag.Each of this at least one video-audio data bag is at least one the bit group that has in this audio-frequency information.This at least one synchronized audio data bag, this at least one control audio packet, with synthetic at least one the general audio-visual frame of this at least one video-audio data package.
According on the other hand of the present utility model, a kind of decoder of audio and video information is provided, be used to have the audio-frequency information and video information of a plurality of character groups with a plurality of character groups.This audio-frequency information and this video information are by at least one synchronized audio data bag, at least one control audio packet, are formatd with formed at least one the general audio-visual frame of at least one video-audio data bag.This decoder comprise a synchronous packets of audio data detector, a control audio packet detector, a video information acquisition device, with an audio-frequency information acquisition device.Synchronized audio data bag detector detects the stored data of at least one synchronization field of this at least one synchronized audio data bag, to determine the initial of this at least one general audio-visual frame.Control audio packet detector detects the stored data of at least one control field of this at least one control audio packet.The video information acquisition device captures this video information from least one video field of this at least one video-audio data bag.The audio-frequency information acquisition device from this at least one synchronized audio data bag capture this audio-frequency information first, capture the second portion of this audio-frequency information and capture the third part of this audio-frequency information from this at least one video-audio data bag from this at least one control audio packet.
[description of drawings]
Fig. 1 shows the flow chart according to the coding method of audio and video information of the present utility model.
Fig. 2 (a) shows the schematic diagram according to the form of synchronized audio data bag of the present utility model.
Fig. 2 (b) shows the schematic diagram according to the form of control audio packet of the present utility model.
Fig. 2 (c) shows the schematic diagram according to the form of video-audio data bag of the present utility model.
Fig. 2 (d) shows the schematic diagram according to the form of general audio-visual frame of the present utility model.
Fig. 3 shows the flow chart according to the coding/decoding method of audio and video information of the present utility model.
Fig. 4 (a) shows the circuit module figure in order to the encoder of the coding method of implementing audio and video information shown in Figure 1.
Fig. 4 (b) shows the circuit module figure in order to the decoder of the coding/decoding method of implementing audio and video information shown in Figure 3.
The element numbers explanation:
10 digitized audio messages
20 digital video informations
30 include the audio-frequency information of SAP
40 include the audio-frequency information of SAP and CAP
50 by the formative audio and video information of UAVF
60 video informations
70 audio-frequency informations
101 audio frequency source
201 source video sequences
4 encoders
41 audio signal processors
42 video signal preprocessors
43 synchronized audio data packet generation devices
44 control audio packet generators
45 video-audio data packet generation devices
5 recording mediums
6 decoders
61 synchronized audio data bag detectors
62 control audio packet detectors
63 video information process devices
64 video information acquisition devices
65 audio-frequency information acquisition devices
66 audio massage processors
7 displays
8 loud speakers
The coding step of ES1～ES5 audio and video information
The decoding step of DS1～DS8 audio and video information
E1,81, C7 synchrodata
C
1～C
9Control data
V
1～V
9Video information
SAP
0～SAP
N-1The synchronized audio data bag
CAP
0～CAP
X-1The control audio packet
VAP
0～VAP
Y-1The video-audio data bag
The general audio-visual frame of UAVF
[embodiment]
Explanation hereinafter and accompanying drawing will make aforementioned and other purposes of the present utility model, feature, more obvious with advantage.Describe in detail with reference to the accompanying drawings according to preferred embodiment of the present utility model at this.
Fig. 1 shows the flow chart according to the coding method of audio and video information of the present utility model.With reference to Fig. 1, in step e S1, prepare digitized audio message 10, and in step e S2, prepare digital video information 20.Step e S1 and ES2 can carry out simultaneously, also can successively carry out.In step e S1, the generation of digitized audio message 10 can realize by audio-source 101 is carried out Audio Signal Processing ES1 '.Audio-source 101 can comprise dummy source and/or digital source.For example, Audio Signal Processing ES1 ' can be the tuning or the like of sampling, subsample and relevant sound quality, and it is all the known technology of those skilled in the art, so locate not give unnecessary details in addition.The ES1 ' of audio signal place also can comprise traditional audio compression techniques, makes the information of digitized audio message 10 for producing through overcompression.In an embodiment of the present utility model, audio-source 101 can be dual track 16 bit sound wave form (Wave Format) data, and changes into monophony 8 bit sound wave formatted datas through the subsample of Audio Signal Processing ES1 '.Can directly obtain in the situation of digitized audio message 10, for example audio-source 101 is monophony 8 bit sound wave formatted datas, then need not carry out any extra Audio Signal Processing ES1 '.
In step e S2, the generation of digital video information 20 can realize by video source 201 being carried out vision signal processing ES2 '.Video source 201 can comprise dummy source and/or digital source.For example, vision signal is handled ES2 ' and be can be sampling, subsample, tuning or the like with relevant image quality, and it is all the known technology of those skilled in the art, so locate not give unnecessary details in addition.Vision signal is handled ES2 ' also can comprise traditional video compression technology, makes the information of digital video information 20 for producing through overcompression.In an embodiment of the present utility model, video source 201 can be bitmap format (BitmapFormat) data of 24 bits, and handles the subsample of ES2 ' and change into the bitmap format data of 4 bits through vision signal.Can directly obtain in the situation of digital video information 20, for example video source 201 is the bit-mapped formatted data of 4 bits, then need not carry out any extra ES2 ' of vision signal place.
In step e S3, in digitized audio message 10, set at least one synchronization field and insert synchrodata, include the audio-frequency information 30 of synchronized audio data bag (SAP) with generation.Fig. 2 (a) shows the schematic diagram according to the form of synchronized audio data bag SAP of the present utility model.With reference to Fig. 2 (a), synchronized audio data bag SAP is made of a synchronous field and an audio field.Synchronization field is in order to the storage synchrodata, and audio field is in order to stored audio information.In one embodiment, synchronization field can be held the synchrodata of nine bit groups, and audio field then can be held the audio-frequency information of a bit group.In one embodiment, synchrodata comprises the data of nine bit groups being formed by nine binary code E1,81, C7, E1,81, C7, E1,81, with C7.Each tuple has 8 bits.In this embodiment, synchrodata is actually E1,81, forms with three sign indicating number triplicates of C7, and its purpose is to reduce the probability that detection makes a mistake.The common synchronized audio data bag SAP that forms one ten bit group of the audio-frequency information A of the synchrodata of these nine bit groups and a bit group.Please note in foundation synchronized audio data bag SAP of the present utility model, synchrodata is not limited to nine bit groups that constituted by E1,81, C7, E1,81, C7, E1,81, with C7, and can be implemented by the bit group of other binary codes and/or other numbers.But during the quantity of the synchrodata that stores greater than institute's desire when storage area that synchronization field provided, exceeding of synchronization field and unnecessary space can be filled up by the dummy data of no essential meaning.Moreover, be not limited to the audio-frequency information that comprises a bit group according to synchronized audio data bag SAP of the present utility model, and also can comprise the audio-frequency information of two or two above bit groups, according to the data capacity (or bandwidth) of the quantity of the audio-frequency information of required storage and employed recording medium and determine.In an embodiment of the present utility model, synchrodata is being reset when reproducing required synchronizing signal and can be used as the sign of audio-visual frame in order to audio and video information to be provided.
In step e S4, in the digitized audio message 30 that includes synchronized audio data bag SAP, set at least one control field and insert control data, include the audio-frequency information 40 of synchronized audio data bag SAP and control audio packet (CAP) with generation.Fig. 2 (b) shows the schematic diagram according to the form of control audio packet CAP of the present utility model.With reference to Fig. 2 (b), control audio packet CAP is made of a control field and an audio field.Control field is in order to the storage control data, and audio field is in order to stored audio information.In one embodiment, control field can be held the control data of nine bit groups, and audio field then can be held the audio-frequency information of a bit group.In one embodiment, control data comprises the data of nine bit groups, as among the figure respectively with reference symbol C
1To C
9Indicate.The control data C of these nine bit groups
1To C
9With the common control audio packet CAP that forms one ten bit group of the audio-frequency information A of a bit group.Please note that control data is not limited to nine bit groups, and can be implemented by the bit group of other numbers in foundation control audio packet CAP of the present utility model.But during the quantity of the control data that stores greater than institute's desire when storage area that control field provided, exceeding of control field and unnecessary space can be filled up by the dummy data of no essential meaning.In an embodiment of the present utility model, because in cataloged procedure, do not need to add any control data, so control field is filled up by the dummy data of no essential meaning fully.Moreover, be not limited to the audio-frequency information that comprises a bit group according to control audio packet CAP of the present utility model, and also can comprise the audio-frequency information of two or two above bit groups, according to the data capacity (or bandwidth) of the quantity of the audio-frequency information of required storage and employed recording medium and determine.In an embodiment of the present utility model, control data is in order to the image processing that video information when audio and video information reproduces is provided required parameter or instruction.
In step e S5, set audio-frequency information 40 and digital video information 20 that at least one video field and merging include synchronized audio data bag SAP and control audio packet CAP, to produce the formative audio and video information 50 of general audio-visual frame UAVF that is constituted by synchronized audio data bag SAP, control audio packet CAP, with video-audio data bag VAP.Fig. 2 (c) shows the schematic diagram according to the form of video-audio data bag VAP of the present utility model.With reference to Fig. 2 (c), video-audio data bag VAP is made of a video field and an audio field.The video field is in order to the storage video information, and audio field is in order to stored audio information.In one embodiment, the video field can be held the video information of nine bit groups, and audio field then can be held the audio-frequency information of a bit group.In one embodiment, video information comprises the data of nine bit groups, as among the figure respectively with reference symbol V
1To V
9Indicate.The video information V of these nine bit groups
1V
9With the common video-audio data bag VAP that forms one ten bit group of the audio-frequency information A of a bit group.Please note in foundation video-audio data bag VAP of the present utility model, video information is not limited to nine bit groups, and can be implemented by the bit group of other numbers, according to the data capacity (or bandwidth) of the quantity of the video information of required storage and employed recording medium and determine.Moreover, be not limited to the audio-frequency information that comprises a bit group according to video-audio data bag VAP of the present utility model, and also can comprise the audio-frequency information of two or two above bit groups, according to the data capacity (or bandwidth) of the quantity of the audio-frequency information of required storage and employed recording medium and determine.
Fig. 2 (d) shows the schematic diagram according to the form of general audio-visual frame UAVF of the present utility model.With reference to Fig. 2 (d), a general audio-visual frame UAVF is by n synchronized audio data bag SAP
0To SAP
N-1, an x control audio packet CAP
0To CAP
X-1, and y video-audio data bag VAP
0To VAP
X-1Constitute.Herein, n, x, with y be all positive integer.By the sign function that synchrodata provided, synchronized audio data bag SAP
0To SAP
N-1What also can claim is audio-visual frame sintering (SOF).
In a foundation embodiment of the present utility model, the digital music CD (CD-DA) that uses diameter 108mm is as recording medium, in order to store by the formative audio and video information of general audio-visual frame UAVF.Typically, the output specification of digital music CD is every sound channel 16 bits, a per second 44.1K sample.Since have two sound channels, so the bandwidth that the digital music CD provides is 44,100*16*2/8=176,400 (bit groups/second), wherein each bit group has 8 bits.When frame rate (Frame Rate) is set at 9 frames of per second, at single frame in the duration, that is 1/9 second, the storage volume of digital music CD is 176,400/9=19,600 (bit groups).When employed display was 216*160 pixel, if to desire with every pixel be that the resolution of 4 bits is come show image information, then the required video information of the demonstration of each figure frame was 216*160*4/8=17289 (a bit group).When audio-frequency information is when being recorded in the digital music CD in the mode that stores the audio-frequency information of a bit group in the data of per ten bit groups, then in the single frame duration (1/9 second), can accommodate the audio-frequency information of 1960 bit groups.That is the sampling rate of audio-frequency information is the 1960*9=17.64K/ per second.
Because audio-frequency information and video information are to be recorded in two sound channels of digital music CD with being mixed together, so must use synchrodata to indicate the position of the initial and audio-frequency information of each general audio-visual frame UAVF.As previously mentioned, in the single frame duration (1/9 second), the storage volume of digital music CD is 19,600 bit groups, and wherein 17,280 bit groups are used to store video information and 1960 bit groups are used for stored audio information.As a result, also remaining 360 bit groups can be used for storing synchrodata and/or control data, for example gamma tables or other Control Parameter about audio-visual playback and reproduction.
Though please note according to coding method of the present utility model and be achieved audio and video information is stored on the digital music CD of diameter 108mm, can use coding method of the present utility model but the utility model is not limited thereto audio and video information is stored on other recording mediums miscellaneous, comprise CD of cartridge, floppy disk, various semiconductor memory, game card and all kinds and various sizes or the like.
Fig. 3 shows the flow chart according to the coding/decoding method of audio and video information of the present utility model.With reference to Fig. 3, at first provide according to of the present utility model by the formative audio and video information 50 of general audio-visual frame UAVF.In step DS1, the synchrodata of detection synchronized audio data bag SAP is initial with definite general audio-visual frame UAVF's.In step DS2, the audio-frequency information among the acquisition synchronized audio data bag SAP.In step DS3, detect the control data among the control audio packet CAP.In step DS4, the audio-frequency information among the acquisition control audio packet CAP.In step DS5, the video information among the acquisition video-audio data bag VAP.In step DS6, the audio-frequency information among the acquisition video-audio data bag VAP.In step DS7, carry out video information process in response to the control data that comes from the control audio packet for the video information 60 of coming, to realize the reproduction of video information from video-audio data bag VAP.In an embodiment of the present utility model, because the control field among the control audio packet CAP is filled up by the dummy data of no essential meaning fully, so in step DS7, implement the reproduction of video information according to being pre-set in the control data in the video processor.On the other hand, when making a mistake, in step DS7, also can implement the reproduction of video information according to being pre-set in the control data in the video processor in order to the step DS3 that detects control data.In step DS8, carry out audio-frequency information for the audio-frequency information 70 that comes from synchronized audio data bag SAP, control audio packet CAP, with video-audio data bag VAP and handle, to realize the playback of audio-frequency information.
Fig. 4 (a) shows the circuit module figure in order to the encoder 4 of the coding method of implementing audio and video information shown in Figure 1.With reference to Fig. 1 and 4 (a), audio-source 101 changes into digitized audio message 10 by audio signal processor 41, and video source 201 changes into digital video information 20 by video signal preprocessor 42.Synchronized audio data packet generation device 43 includes the audio-frequency information 30 of synchronized audio data bag SAP in order to set at least one synchronization field and insert synchrodata in digitized audio message 10 with generation.Control audio packet generator 44 includes the audio-frequency information 40 of synchronized audio data bag SAP and control audio packet CAP in order to set at least one control field and insert control data in the digitized audio message 30 that includes synchronized audio data bag SAP with generation.Video-audio data packet generation device 45 is in order to setting the audio-frequency information 40 and digital video information 20 that at least one video field and merging include synchronized audio data bag SAP and control audio packet CAP, to produce the formative audio and video information 50 of general audio-visual frame UAVF that is constituted by synchronized audio data bag SAP, control audio packet CAP, with video-audio data bag VAP.Can be implemented with hardware mode with software mode or by application-specific integrated circuit (ASIC) (ASIC) by computer program according to encoder 4 of the present utility model.Can be stored in the recording medium 5 by the formative audio and video information 50 of general audio-visual frame UAVF.In one embodiment, recording medium is the digital music CD of diameter 108mm.
Fig. 4 (b) shows the circuit module figure in order to the decoder 6 of the coding/decoding method of implementing audio and video information shown in Figure 3.With reference to Fig. 3 and 4 (b), from recording medium 5, for example the digital music CD of diameter 108mm provides by the formative audio and video information 50 of general audio-visual frame UAVF institute to decoder 6.Synchronized audio data bag detector 61 is in order to detecting the synchrodata by the synchronized audio data bag SAP in the formative audio and video information 50 of general audio-visual frame UAVF institute, initial with definite each general audio-visual frame UAVF.Control audio packet detector 62 in order to detect by general audio-visual frame UAVF the control data of the control audio data CAP in the formative audio and video information 50, and transmit this control data to video information process device 63.Video information acquisition device 64 in order to acquisition by general audio-visual frame UAVF the video information 60 of the video-audio data bag VAP in the formative audio and video information 50.In response to control data that detects and the video information 60 that is captured, video information process device 63 control displays 7 are to realize image reproduction.In an embodiment of the present utility model, because the control field among the control audio packet CAP is filled up by the dummy data of no essential meaning fully, so video information process device 63 is implemented the reproduction of video information according to being pre-set in control data wherein.On the other hand, when control audio packet detector 62 made a mistake, video information process device 63 also can be implemented the reproduction of video information according to being pre-set in control data wherein.Audio-frequency information acquisition device 65 in order to acquisition by synchronized audio data bag SAP, control audio packet CAP in the formative audio and video information 50 of general audio-visual frame UAVF institute, and the audio-frequency information 70 of video-audio data bag VAP.In response to the audio-frequency information 70 that is captured, audio massage processor 66 control loudspeakers 8 are to realize sound reproduction.Can be implemented with hardware mode with software mode or by application-specific integrated circuit (ASIC) (ASIC) by computer program according to decoder 6 of the present utility model.
Though the utility model is illustrated as illustration by preferred embodiment, be interpreted as: the utility model is not limited thereto the embodiment that is disclosed.On the contrary, to be intended to contain be tangible various modification and similar configuration to the utility model for a person skilled in the art.Therefore, the scope of claims should be according to the widest annotation, and this type of is revised and similar configuration to contain all.
Claims (12)
1. the encoder of an audio and video information is used to format audio-frequency information with a plurality of character groups and the video information with a plurality of character groups, it is characterized in that this encoder comprises:
Synchronized audio data packet generation device, in order to set at least one synchronization field in this audio-frequency information, to form at least one synchronized audio data bag, each of this at least one synchronized audio data bag all has at least one the bit group in this audio-frequency information;
Control audio packet generator is used to set at least one control field in this audio-frequency information, and to form at least one control audio packet, each of this at least one control audio packet all has at least one the bit group in this audio-frequency information; And
Video-audio data packet generation device, in order to set at least one video field and to merge this audio-frequency information and this video information, to form at least one video-audio data bag, each of this at least one video-audio data bag all has at least one the bit group in this audio-frequency information, and:
Make this at least one synchronized audio data bag, this at least one control audio packet, synthesize at least one general audio-visual frame with this at least one video-audio data package.
2. the encoder of audio and video information as claimed in claim 1, wherein:
This at least one synchronization field is in order to store at least one synchrodata, to indicate the initial of this at least one general audio-visual frame.
3. the encoder of audio and video information as claimed in claim 1, wherein:
This at least one control field is used for the reproduction of this video information in order to store at least one control data.
4. the encoder of audio and video information as claimed in claim 1, wherein:
This at least one general audio-visual frame recording is in a recording medium.
5. the encoder of audio and video information as claimed in claim 4, wherein:
This recording medium is the digital music CD of diameter 108mm.
6. the encoder of an audio and video information is used to format audio-frequency information with a plurality of character groups and the video information with a plurality of character groups, it is characterized in that this encoder comprises:
Synchronized audio data packet generation device, in order in this audio-frequency information, to set at least one synchronization field, to form at least one synchronized audio data bag, each of this at least one synchronized audio data bag all has at least one the bit group in this audio-frequency information, and wherein each of this at least one synchronization field is in order to store nine binary code E1,81, C7, E1,81, C7, E1,81 and C7;
Control audio packet generator is used to set at least one control field in this audio-frequency information, and to form at least one control audio packet, each of this at least one control audio packet all has at least one the bit group in this audio-frequency information; And
Video-audio data packet generation device, in order to set at least one video field and to merge this audio-frequency information and this video information, to form at least one video-audio data bag, each of this at least one video-audio data bag all has at least one the bit group in this audio-frequency information, and:
Make this at least one synchronized audio data bag, this at least one control audio packet, synthesize at least one general audio-visual frame with this at least one video-audio data package.
7. the decoder of an audio and video information, be used to have the audio-frequency information and video information of a plurality of character groups with a plurality of character groups, this audio-frequency information and this video information is characterized in that this decoder comprises by at least one synchronized audio data bag, at least one control audio packet, formatd with formed at least one the general audio-visual frame of at least one video-audio data bag:
Synchronized audio data bag detector is in order to detect the stored data of at least one synchronization field of this at least one synchronized audio data bag, to determine the initial of this at least one general audio-visual frame;
Control audio packet detector is in order to detect the stored data of at least one control field of this at least one control audio packet;
The video information acquisition device captures this video information in order at least one the video field from this at least one video-audio data bag; And
The audio-frequency information acquisition device is in order to the first that captures this audio-frequency information from this at least one synchronized audio data bag, capture the second portion of this audio-frequency information and capture the third part of this audio-frequency information from this at least one video-audio data bag from this at least one control audio packet.
8. the decoder of audio and video information as claimed in claim 7 also comprises:
The video information process device, in order in response to these stored data of this at least one control field, and by controlling a display to reproduce for this video information of coming from this at least one video field.
9. the decoder of audio and video information as claimed in claim 7 also comprises:
Audio massage processor is in order to first to reset to this third part for this of this audio-frequency information by controlling a loud speaker.
10. the decoder of audio and video information as claimed in claim 7, wherein:
This at least one general audio-visual frame recording is in a recording medium.
11. the decoder of audio and video information as claimed in claim 10, wherein:
This recording medium is the digital music CD of diameter 108mm.
12. the decoder of an audio and video information, be used to have the audio-frequency information and video information of a plurality of character groups with a plurality of character groups, this audio-frequency information and this video information is characterized in that this decoder comprises by at least one synchronized audio data bag, at least one control audio packet, formatd with formed at least one the general audio-visual frame of at least one video-audio data bag:
Synchronized audio data bag detector, in order to detect the stored data of at least one synchronization field of this at least one synchronized audio data bag, to determine the initial of this at least one general audio-visual frame, wherein each of this at least one synchronization field is in order to store nine binary code E1,81, C7, E1,81, C7, E1,81 and C7;
Control audio packet detector is in order to detect the stored data of at least one control field of this at least one control audio packet;
The video information acquisition device captures this video information in order at least one the video field from this at least one video-audio data bag; And
The audio-frequency information acquisition device is in order to the first that captures this audio-frequency information from this at least one synchronized audio data bag, capture the second portion of this audio-frequency information and capture the third part of this audio-frequency information from this at least one video-audio data bag from this at least one control audio packet.
Priority Applications (1)
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| CN 200420059398 CN2750605Y (en) | 2004-06-10 | 2004-06-10 | Coder and decoder for video information |
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| CN 200420059398 CN2750605Y (en) | 2004-06-10 | 2004-06-10 | Coder and decoder for video information |
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| CN2750605Y true CN2750605Y (en) | 2006-01-04 |
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