CN1897676A - Video instrument for storing multiple data of compressed format and its control method - Google Patents
Video instrument for storing multiple data of compressed format and its control method Download PDFInfo
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- CN1897676A CN1897676A CNA2006101068435A CN200610106843A CN1897676A CN 1897676 A CN1897676 A CN 1897676A CN A2006101068435 A CNA2006101068435 A CN A2006101068435A CN 200610106843 A CN200610106843 A CN 200610106843A CN 1897676 A CN1897676 A CN 1897676A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/44029—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display for generating different versions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/46—Embedding additional information in the video signal during the compression process
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
- H04N21/4184—External card to be used in combination with the client device, e.g. for conditional access providing storage capabilities, e.g. memory stick
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4348—Demultiplexing of additional data and video streams
Abstract
The invention discloses a video instrument for storing other format multiple data of compressed format and its control method, comprising a signal compositing device compositing a first and second compressed format data as a character string, a storing circuit storing the composed character string, a signal decompositng device for separating only a certain format compressed data from the stored character string. If the data format stored in the program of the video instrument differs from that of a out-linked device used for receiving the stored program, this invention can store the other format multiple data of compressed format with capability of reducing possible time loss. The invention strores other format compressed format data as a character string and achieves effects of low cost and high transmission when separated the data as documents of mobile device, etc.
Description
One, technical field
The invention relates to a kind of invention of video instrument, is video instrument and control method thereof that a kind of a plurality of data of compressed format with extended formatting (Format Data) is stored concretely.
Two, background technology
With the development of technology, the method for compressing image data (Data) reaches specification in many ways and comes on stage.Particularly cartoon making compression standard (MPEG) Format is present most popular a kind of compress mode, and full name is " Motion Picture Experts Group ".MPEG comes a kind of mode of formation information transmission as the performance of compression by continually varying animation in time and password (Code), it comprises the digital storage medium that occurred in 1991 with the MPEG1 of compliant compression and the digital broadcasting that occurred in 1994 MPEG2 with compliant compression, and the MPEG4 that after this occurs, MPEG7 etc.
Further specify, what the compress mode of MPEG2 solved is the problem points of the picture quality level of DVD/HD level again, and what the compress mode of MPEG1 solved is the problem points of VCD picture quality level.But for the situation of MPEG2,, require the storage medium high capacity, exist in the problem points of playing difficulty on the network in real time thus because capacity is excessive.
For solving the MPEG4 that the existing problem points of MPEG2 is come on stage, when comparing with MPEG2, it has reduced required capacity greatly on the basis of the level of guaranteeing equal picture quality.But the compress mode of MPEG4 and MPEG2 is different fully.
The specification of broadcasting is with the MPEG2 form now.Therefore be the DTV picture that can launch high image quality.But when it is recorded a video, can't be directly used on the external mobile device because capacity is excessive.Final still the need is converted to compress mode that is applicable to mobile (Mobile) equipment and the size that reduces file with the content of recording.
Fig. 1 is a prior art, is converted to the precedence diagram of the compression Format Data of extended formatting with being stored in compression Format Data in the video instrument.Next, we are with reference to figure 1, and the order that will be stored in file in the video instrument signal flow when moving to Mobile equipment and showing with existing MPEG2 describes as follows:
The file storage of the MPEG2 form that video instrument can send from the broadcasting station, stage S101.
Show for the file with above-mentioned MPEG2 form is sent to Mobile equipment etc., need the file of above-mentioned MPEG2 form is decoded stage S102.
Next, need above-mentioned decoded file recompression is MPEG4 form, stage S103.
The file of the MPEG4 form of above-mentioned compression is stored earlier, stage S104, add fashionablely as special transmission invitation signal, could transmit the file of the MPEG4 form of above-mentioned compression, stage S105 to the Mobile equipment that is connected with above-mentioned video instrument etc.
But the video instrument of above-mentioned prior art has following problem points.
Because MPEG2 is different with the compress mode of MPEG4, therefore, must will be stored in the MPEG2 formatted file decoding in the video instrument after, be compressed into the file of MPEG4 form more again, for the form that is converted to MPEG4 also need be waited for the time required when recording a video.Prior art exists can't be eliminated this because the problem of the time heavy losses that temporal repetition brought.
Three, summary of the invention
For solving the above problems, after the purpose of this invention is to provide a kind of can be simultaneously the compression FormatData of extended formatting the storage, when the user has demand, can be sent to video instrument and control method thereof that the multiple compression Format Data with extended formatting of Mobile equipment etc. stores apace.
The objective of the invention is to be achieved through the following technical solutions:
A kind of video instrument of multiple data of compressed format of storing other format is characterized in that: it comprises the signal mixer (multiplexer) that the compression Format Data of the compression Format Data of the 1st form and the 2nd form is synthesized a character string; Memory circuit with an above-mentioned synthetic character string storage; In an above-mentioned character string of having stored, only separate the demultiplexer (demultiplexer) of the data of compressed format of specific format.
The compression Format Data of the compression Format Data of the 1st above-mentioned form and the 2nd form may be MPEG 2 format strings and MPEG 4 format strings.
Above-mentioned demultiplexer must be sent to the compression Format Data of above-mentioned isolated specific format in ancillary equipment or the storage card.
Above-mentioned signal mixer can be with in an above-mentioned character string, and it is good appending special key (Head) information that can distinguish the compression Format Data of extended formatting.
The format information that must comprise some Data in the above-mentioned special Head information, synchronous (sync) information, mistake (error) information etc.
Also must comprise sequential counting (count) information in the above-mentioned special key message.
For reaching above-mentioned purpose, the present invention comprises the stage that the compression Format Data of the compression Format Data of the 1st form and the 2nd form is synthesized a character string; With the stage of an above-mentioned synthetic character string storage; And in an above-mentioned character string of having stored, only the stage that the compression Format Data of specific format is separated, the control method of a kind of video instrument that the multiple compression Format Data of extended formatting is stored of providing of its feature was provided.
The compression Format Data of the compression Format Data of the 1st above-mentioned form and the 2nd form may be MPEG 2 format strings and MPEG 4 format strings.
The control method of the video instrument that the compression Format Data of above-mentioned extended formatting is stored must comprise that equipment or storage card stage of transmitting is good to the periphery with the compression Format Data of above-mentioned isolated specific format.
The stage that the compression Format Data of the compression Format Data of the 1st above-mentioned form and the 2nd form is synthesized a character string must be in an above-mentioned character string, and it is good appending the synthetic special key message that the compression Format Data of extended formatting can be distinguished.
Above-mentioned special key message must comprise the Data format information, synchronous (sync) information, and mistake (error) information is good.
Above-mentioned special key message must sequential counting (count) information be good also.
Therefore, the compression Format with extended formatting in adopting video instrument of the present invention is stored as a character string, thereby when being separated into files such as meeting Mobile equipment, can obtain with the low-cost high effect that transmits.
The invention has the beneficial effects as follows: though the Data compressed format that the present invention has a program that is stored in the video instrument is different with the Data compressed format of the external equipment that the above-mentioned program of having stored can be received and show, when the file of having stored in above-mentioned video instrument to the external equipment of Mobile equipment etc. separates, obtain with the low-cost high effect that transmits.
Four, description of drawings
Fig. 1 is in the prior art, is stored in the precedence diagram that compression Format Data in the video instrument is converted to the compression Format Data of extended formatting;
Fig. 2 is the block diagram of the video instrument that adopts a plurality of compression Format Data storage with extended formatting of the present invention;
Fig. 3 a is the structural representation with general Transport character string;
Fig. 3 b is of the present invention for adopting, and is made for the drawing of the example that a character string forms by a plurality of compression Format Data of extended formatting;
Fig. 3 c is of the present invention for adopting, and is made for the drawing of another example that a character string forms by a plurality of compression Format Data of extended formatting;
Fig. 4 is of the present invention for adopting, the flow chart of the control method of the video instrument that a plurality of compression Format Data of extended formatting is stored.
The symbol description of accompanying drawing major part
201: video instrument 202: tuner
203:A/D change-over circuit 204:MPEG2 decoder
205:MPEG4 decoder 206: buffer
207: signal mixer 208: memory circuit
209: demultiplexer 210:Mobile equipment
Five, embodiment
Next, to realizing the present invention of above-mentioned purpose, also describe with reference to the accompanying drawings with concrete representative instance.
Fig. 2 is of the present invention for adopting, the block diagram of the video instrument that the multiple compression Format Data of extended formatting is stored.With reference to figure 2, adopt when of the present invention the process description of the video instrument that the multiple compression Format Data with extended formatting stores as follows.
Shown in Fig. 2 is to be that diagram is carried out at the center with chief component of the present invention, and element and signal flow that the broadcast singal that will receive from video instrument shows are omitted.Though to the diagram of above-mentioned element and specify and be omitted, even but if the practitioner of the industry has omitted above-mentioned diagram and has specified, understanding for the video instrument that a plurality of compression Format Data of extended formatting is stored of the present invention also is appreciated that by Fig. 2.
Video instrument 201 is an equipment that is embodied by the present invention, comprises part described later.But not special restriction is given an example in above-mentioned video instrument 201, can be understood as to comprise for above-mentioned video instrument 201 to receive broadcasting and display it, perhaps the equipment stored of the broadcast program that has received that will be above-mentioned.
Though a plurality of compression Format Data for extended formatting also can be suitable for the present invention, will be that the center describes with MPEG2 and MPEG4 for the compression Format Data of extended formatting.Be exactly to be divided into the situation of analog signal and the situation of DTV broadcast singal describes in addition for the signal of giving 201 inputs of above-mentioned video instrument.
In the above-mentioned video instrument 201 input be analog signal the time, 202 of tuners carry out certain all-wave frequency tuning, and only choose this all-wave and carry out tuning effect.
Above-mentioned A/D change-over circuit 203 will tuning analog signal conversion be a digital signal in above-mentioned tuner 202.
The digital signal that to change in above-mentioned A/D change-over circuit 203 exactly is converted to the effect of MPEG2 compression Format Data and MPEG4 compression Format Data respectively by MPEG2 decoder 204 and MPEG4 decoder 205 in addition.
Buffer 206 does not mix the compression Format Data of extended formatting mutually before above-mentioned MPEG2 compression Format Data and MPEG4 compression Format Data are sent to signal mixer 207, plays time of delay.
Above-mentioned signal mixer 207 synthesizes a character string with above-mentioned MPEG2 compression Format Data and MPEG4 compression Format Data.But, be good for the compression Format Data that distinguishes extended formatting appends special key (Head) information in an above-mentioned character string.To specifically narrate in the explanation of 3b and 3c to Fig. 3 a for this.
Also have, memory circuit 208 plays synthetic in an above-mentioned signal mixer character string and stores.
Demultiplexer 209 can be in an above-mentioned character string of having stored only separates the compression Format Data of specific format, can give the compression Format Data of the Mobile equipment 210 transmission specific formats that are connected with above-mentioned video instrument 201.Though above-mentioned Mobile equipment 210 is had no particular limits, for adopting MPEG4 compressed format equipment, can be corresponding with above-mentioned Mobile equipment.
In addition, in the above-mentioned video instrument 201 input be the DTV broadcast singal time, 202 of above-mentioned tuners carry out certain all-wave frequency tuning, and only choose this all-wave and carry out tuning effect.
During this situation, form is MPEG2, and the DTV broadcast singal that receives will directly be loaded into above-mentioned buffer 206 without above-mentioned MPEG2 decoder 204.But, form is that the DTV broadcast singal that above-mentioned MPEG2 receives does not comprise MPEG4 compression Format Data, but generate MPEG4 compression Format Data, and the above-mentioned MPEG4 that has generated compression FormatData is sent to above-mentioned buffer 206 by above-mentioned A/D change-over circuit 203 and above-mentioned MPEG4 decoder 205.
Above-mentioned buffer 206 is before above-mentioned MPEG2 compression FormatData and MPEG4 compression FormatData are sent to above-mentioned signal mixer 207, for the compression FormatData that makes extended formatting does not mix mutually, with the effect of time delay.
Above-mentioned signal mixer 207 synthesizes a character string with above-mentioned MPE62 compression Format Data and MPEG4 compression FormatData.And for distinguishing the compression FormatData of extended formatting, it is good appending a special key message in an above-mentioned character string.To specifically narrate in the explanation of 3b and 3c to Fig. 3 a for this.
Also have, above-mentioned memory circuit 208 plays a part synthetic in the above-mentioned signal mixer 207 character string is stored.
Above-mentioned demultiplexer 209 can only be isolated the compression Format Data of specific format in an above-mentioned character string of having stored, transmit the compression Format Data of specific formats can for the Mobile equipment 210 that is connected with above-mentioned video instrument 201.Though have no particular limits for above-mentioned Mobile equipment 210, when adopting the equipment of MPEG4 compressed format, can both be equivalent to above-mentioned Mobile equipment 210.
Fig. 3 a is transmission (Transport) the character string structure chart of common format.With reference to figure 3a, describe the key (header) of common Transport character string part and pay(useful) load (payload) part as follows:
Shown in Fig. 3 a, common Transport character string partly is made up of header part and pay(useful) load, is made up of the length of totally 188 bytes (byte).
Fig. 3 b synthesizes the instance interpretation figure that a character string is formed for employing is of the present invention by a plurality of compression FormatData with extended formatting.With reference to figure 3b, an example that adopts MPEG2 of the present invention and MPEG4 to append the Transport character string of a special Head information is described as follows:
When above-mentioned signal mixer can synthesize a character string with MPEG2 and MPEG4, also special Head information can be loaded up.Shown in Fig. 3 b, can the above-mentioned special Head information of each bootstrap loading in the Transport character string of MPEG2 and the Transport character string of MPEG4.
Above-mentioned special Head information must comprise the Data format information, synchronous (sync) information, and mistake (error) information is good.
Above-mentioned Data format information can be made up of 1 bit (bit), for example can be set to when above-mentioned Data format information when " 0 ", expression be the character string of MPEG2, or above-mentioned Data format information is when being " 1 ", expression be the character string of MPEG4.But above-mentioned " 0 " or the numerical value of " 1 " will not be restricted to interest field of the present invention.
Above-mentioned synchronizing signal can be made up of 2 bits (bit), can be appointed as character string receiver (sinck) information that synthesizes a character string.
Above-mentioned error message can be made up of 1 bit (bit), and can include does not have the wrong information of confirming that takes place.
Can also refer to fix on and comprise sequential counting (count) information in the above-mentioned special Head information.It is the information of appending in order to improve receiver (sinck) correctness that above-mentioned sequential counting information can be understood as.
Fig. 3 c is of the present invention for adopting, and a plurality of compression Format Data of extended formatting is synthesized the schematic diagram of another example of a character string.With reference to figure 3c, adopt the present invention that another example that MPEG2 and MPEG4 append the Transport character string of special Head information is described as follows.
When above-mentioned signal mixer synthesizes a character string with MPEG2 and MPEG4, also can add special Head information.Can add an above-mentioned special Head information in the Transport character string as the Transport character string of Fig. 3 MPEG2 that c is shown in and MPEG4.This point is for adding Fig. 3 b of special Head information and the feature that Fig. 3 c is distinguished separately in the Transport of extended formatting character string.
Above-mentioned special Head information must comprise beginning (start) information, synchronous (sync) information, and mistake (error) information is good.
Above-mentioned start information can be made up of 4 bits (bit), the zone distance of MPEG2 is showed, thereby distinguish MPEG2 character string and MPEG4 character string.
Above-mentioned synchronizing information can be made up of 2 bits (bit), can specify receiver (sinck) information of the character string that synthesizes a character string.
Above-mentioned error message can be made up of 1 bit (bit), whether can load affirmation by information by mistake.
Also have, can also specify in the above-mentioned special Head information to comprise sequential counting (count) information.Above-mentioned sequential counting information can be described as the information of appending for the correctness that improves receiver (sinck).
Fig. 4 is of the present invention for adopting, the flow chart of the control method of the video instrument that a plurality of compression Format Data of extended formatting is stored.With reference to figure 4, adopt the control method of video instrument of the present invention to be described as follows:
Video instrument can synthesize a character string, stage S401 with a plurality of compression Format Data of extended formatting.Here, a plurality of compression Format Data of above-mentioned extended formatting contains more than 2 also harmless, also can comprise MPEG2 Transport character string and MPEG4 Transport character string.
Also have, for the method that synthesizes a character string at above-mentioned S401 in the stage, by described Fig. 3 a before, the explanation of 3b and 3c, the people who is engaged in the industry can understand.
An above-mentioned synthetic character string is to be stored in the memory circuit of above-mentioned video instrument stage S402.
But give when input is sent to the command signal of Mobile equipment with specific file in the above-mentioned video instrument, when perhaps giving the signal of the Mobile equipment input that is connected with above-mentioned video instrument as above-mentioned order, in an above-mentioned character string of having stored, only the compression Format Data with specific format separates stage S403.If the Mobile equipment that is connected with above-mentioned video instrument adopts when being MPEG4 compressed format, the compression Format Data of so above-mentioned specific format can be MPEG4 compression Format Data.
Be exactly the compression FormatData of above-mentioned isolated specific format to be sent to above-mentioned Mobile equipment, stage S404 in addition.The Mobile equipment of stating can be ancillary equipment oneself, perhaps also can be storage card.
Content by above explanation, technical scope of the present invention is not limited to the content of putting down in writing among the embodiment, those skilled in the art can carry out various change and modification in the scope that does not depart from the technology of the present invention thought, and this change also will belong to the application range that the present invention puts down in writing.
Claims (12)
1, a kind of video instrument of storing multiple data of compressed format is characterized in that: it comprises the signal mixer that the data of compressed format of the data of compressed format of the 1st form and the 2nd form is synthesized a character string; Memory circuit with an above-mentioned synthetic character string storage; In an above-mentioned character string of having stored, only separate the demultiplexer of the data of compressed format of specific format.
2, the video instrument of the multiple data of compressed format of storage according to claim 1 is characterized in that: the data of compressed format of the 1st above-mentioned form and the data of compressed format of the 2nd form are MPEG 2 format strings and MPEG 4 format strings.
3, the video instrument of the multiple data of compressed format of storage according to claim 2 is characterized in that: above-mentioned demultiplexer is that the data of compressed format with above-mentioned isolated specific format is sent to ancillary equipment or storage card.
4, the video instrument of the multiple data of compressed format of storage according to claim 1, it is characterized in that: above-mentioned signal mixer can append into the special key message of distinguishing the extended formatting data of compressed format and synthesize in an above-mentioned character string.
5, the video instrument of the multiple data of compressed format of storage according to claim 4 is characterized in that: above-mentioned special key message is to comprise data format information, synchronizing information, error message.
6, the video instrument of the multiple data of compressed format of storage according to claim 5 is characterized in that: above-mentioned special key message is to comprise sequential counting information.
7, a kind of control method of storing the video instrument of its multiple data of compressed format is characterized in that it comprised with the next stage:
The data of compressed format of the data of compressed format of the 1st form and the 2nd form is synthesized the stage of a character string;
With an above-mentioned synthetic stage that character string is stored;
In an above-mentioned character string of having stored, stage that the data of compressed format of specific format is separated only.
8, the control method of the video instrument of the multiple data of compressed format of storage according to claim 7 is characterized in that: the data of compressed format of the 1st above-mentioned form and the data of compressed format of the 2nd form are MPEG 2 format strings and MPEG 4 format strings.
9, the control method of the video instrument of the multiple data of compressed format of storage according to claim 7 is characterized in that: it also comprises the stage that the data of compressed format of above-mentioned isolated specific format is sent to ancillary equipment or storage card.
10, the control method of the video instrument of the multiple data of compressed format of storage according to claim 7, it is characterized in that: the stage that the data of compressed format of the data of compressed format of the 1st above-mentioned form and the 2nd form is synthesized a character string, in an above-mentioned character string, can append the special key message that the data of compressed format of extended formatting is distinguished synthetic.
11, the control method of the video instrument of the multiple data of compressed format of storage according to claim 10 is characterized in that: above-mentioned special key message comprises data format information, synchronizing information, error message.
12, the control method of the video instrument of the multiple data of compressed format of storage according to claim 11 is characterized in that: above-mentioned special key message comprises sequential counting information.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050079565 | 2005-08-29 | ||
| KR1020050079565A KR100755849B1 (en) | 2005-08-29 | 2005-08-29 | The display device for recording the compressed data formats of other types and method for controlling the same |
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| Publication Number | Publication Date |
|---|---|
| CN1897676A true CN1897676A (en) | 2007-01-17 |
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| CNA2006101068435A Pending CN1897676A (en) | 2005-08-29 | 2006-07-31 | Video instrument for storing multiple data of compressed format and its control method |
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| KR (1) | KR100755849B1 (en) |
| CN (1) | CN1897676A (en) |
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| KR100843405B1 (en) * | 2007-08-30 | 2008-07-03 | 삼성전기주식회사 | Receiver and receiving method for digital broadcasting |
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| KR100493281B1 (en) * | 2001-10-15 | 2005-06-02 | 엘지전자 주식회사 | Apparatus for processing video signal of digital TV |
| KR20050069495A (en) * | 2003-12-31 | 2005-07-05 | 삼성전자주식회사 | Portable composition apparatus creating one file composed of moving-image data inputted intermittently |
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2005
- 2005-08-29 KR KR1020050079565A patent/KR100755849B1/en active IP Right Grant
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| KR100755849B1 (en) | 2007-09-07 |
| KR20070027142A (en) | 2007-03-09 |
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