CN105898539A - Ultra HD (High-Definition) digital television receiver using HEVC video decoding - Google Patents
Ultra HD (High-Definition) digital television receiver using HEVC video decoding Download PDFInfo
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Classifications
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- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
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Abstract
The invention relates to an ultra HD (High-Definition) digital television receiver using HEVC video decoding. The ultra HD digital television receiver using HEVC video decoding comprises a receiving antenna, an audio playing module and a video playing module. The receiving antenna receives ultra HD digital television signals; the audio playing module plays ultra HD digital audio signals in the ultra HD digital television signals; and the video playing module plays ultra HD digital video signals and caption display data in the ultra HD digital television signals. Through the ultra HD digital television receiver using HEVC video decoding a television user can be helped to view diversified caption information while watching the ultra HD digital television audio and video signals, thereby satisfying watching requirements in multiple aspects of the user.
Description
The present invention is Application No. 201310183439.8, filing date May 15 in 2013 day,
The division of the patent of bright entitled " using the ultra high-definition digital television receiver of HEVC video decoding "
Application.
Technical field
The present invention relates to ultra high-definition digital TV field, particularly relate to a kind of use efficient video coding
The ultra high-definition digital television receiver of HEVC video decoding.
Background technology
Ultra high-definition (Ultra High-Definition), from International Telecommunication Union (International
Telecommunication U nion) ratify by " 4K resolution (3840 × 2160 pixel) "
" ultra high-definition Ultra HD (the Ultra High-Definition) " that formal name is set to.This title simultaneously
It is also applied for " 8K resolution (7680 × 4320 pixel) ".And current technical HDTV is differentiated
Rate is the physical resolution of 1920*1080.But thing followed film source capacity is also huge, 18 points
The uncompressed video of clock reaches 3.5TB.What high resolution was brought is exactly incredible exquisiteness
Display effect, in play pieces, the camera lens stood high above the masses almost can mirror the overall picture in a city, and
Each details in camera lens, can see clearly and understand Chu.Except resolution, ultra high-definition LCD TV
Its picture element density is up to 103ppi to be also a little worth allowing people note, although this index is only
/ 3rd of iPhone 4 screen, but high than the 36ppi of nowadays 60 inches of 1080P TVs
Many.
But, in more existing HDTVs, resolution is not enough by data compression ratio, transmission
The restriction that bandwidth is less, i.e. allows to design video image and the audio frequency of ultra high-definition resolution, as
The image of 15360 × 8640 resolution, the audio signal of the sample rate of every sound channel 48KHz, but by
In compression, the inadequate and restriction of existing channel transmission mode, causes sending and to receive ultra high-definition number
Word TV signal, and the audio-video signal that resolution can only be selected relatively low is watched, even if ultra high-definition
The video image of resolution and the technology of audio frequency itself have developed into ripe, further, since DVB is wide
Broadcasting in signal and propagated as independent of audio frequency, the certain content of video by captions, the reception to it has
Having certain professional and complexity, the digital television receiver that market seldom has band captions to process exists
Sell.
Accordingly, it would be desirable to the digital television receiver of a kind of ultra high-definition digital television signal, transform original
Multi-channel transport mechanism, uses the higher Audio data compression pattern of data compression and video data compression
Pattern, creates conditions for the video image of ultra high-definition resolution and the transmission of audio frequency, uses ground simultaneously
Television channel transmission means, even if for the televiewer in mobile traffic, also can receive super
The video content of high definition resolution and audio content, and rise special to the captions in DVB broadcast singal
Carrying out resolving and decoding process, the DTV that caption function adds ultra high-definition digital television signal connects
In receipts machine.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of terrestrial channel transmission ultra high-definition DTV
The digital receiver of signal, uses spatial audio coding SAC coding to enter ultra high-definition digital audio and video signals
Row compression coding and decoding, uses efficient video coding HEVC coding to carry out ultra high-definition digital video signal
Compression coding and decoding, has transformed original terrestrial television channel transmission technology simultaneously, for ultra high-definition TV
Transmission creates condition so that televiewer can not only receive increasing TV programme, Er Qie great
Improve greatly the resolution of the TV programme of reception, the sense organ for televiewer provides perfect audiovisual to enjoy
It is subject to, it addition, increase special captions processing module and captions process relief area in receivers so that
User can watch various caption information.
According to an aspect of the present invention, it is provided that a kind of ultra high-definition using HEVC video to decode numeral
Radiotelevisor, including reception antenna, audio playing module and video playback module, reception antenna connects
Receive ultra high-definition digital television signal, to play described ultra high-definition DTV letter in audio playing module
Ultra high-definition digital audio and video signals in number, and on video playback module, play described ultra high-definition numeral electricity
Depending on the ultra high-definition digital video signal in signal and Subtitle Demonstration data.More specifically, described use
The ultra high-definition digital television receiver of HEVC video decoding farther includes: reception antenna, receives
The ultra high-definition digital television signal of transmission in terrestrial channel, it is thus achieved that radiofrequency signal；Down-converted module,
Connect described reception antenna to receive described radiofrequency signal, described radiofrequency signal is simulated down coversion
To be transformed on intermediate frequency, to signal digitized on intermediate frequency, then to the signal number after digitized
Word down coversion；Channel data decoder module, numeral is lower to be become to receive to connect described down-converted module
Signal after Pin, and carry out successively the signal after the described Digital Down Convert received solving OFDM
Frame, solution data slice, OFDM demodulation process, to obtain the byte after OFDM demodulation processes；Go
Convolutional interleave module, connect described channel data decoder module with receive described OFDM demodulation process after
Byte, and described byte is carried out the intertexture of deconvoluting that the degree of depth is 12；Error correction decoding module, even
Deconvolute described in connecing interleaving block with receive deconvolute interweave after signal, and to deconvolute intertexture after
It is that reed-solomon RS decodes, outer code is low-density checksum LDPC decoding that signal carries out ISN
Error correction decoding, to obtain the multiple logical data stream after error correction decoding；Output pretreatment module, even
Connect described error correction decoding module to receive the multiple logical data stream after described error correction decoding, and by described
Multiple logical data stream after error correction decoding merge into a transport stream TS stream；Demultiplexing module, even
Connect described output pretreatment module to flow, to described with the TS receiving the output of described output pretreatment module
TS stream demultiplexes, to obtain audio TS bag, video TS bag and captions TS bag, audio frequency respectively
TS bag, video TS bag and captions TS bag have different PID Packet Identifier PID, and described PID is used for
The identifier of different types of data bag distribution different value in flowing for the TS after multiplexing；Solve TS bag module,
Connect described demultiplexing module to receive audio TS bag, video TS bag and captions TS bag, and to sound
Frequently TS bag, video TS bag and captions TS bag carry out XieTSBao, with obtain respectively audio frequency PES bag,
Video PES bag and captions PES bag, described PES bag is DTV elementary stream, is by right
Compressed audio coding data, video compression coding data or captions coded data packet are packed and add
PES packet header is formed, and each PES bag includes that Presentation Time Stamp PTS, described PTS are used for representing
Compressed audio coding data, video compression coding data or captions in the PES bag of described PTS place are compiled
The predetermined reproduction time of code data；Solve PES bag module, connect described solution TS bag module to receive sound
Frequently PES bag, video PES bag and captions PES bag, and to audio frequency PES bag, video PES bag and
Captions PES bag carries out XiePESBao, it is thus achieved that compressed audio coding data and audio frequency PTS, video compress
Coded data and video PTS, captions coded data and captions PTS；Captions Coded Data Buffer,
Connect described solution PES bag module to obtain captions coded data and captions PTS, and according to the page specified
Identifier storage captions coded data and captions PTS, described page includes combined page and auxiliary page, institute
Stating the captions coded data that combined page includes that captions are exclusive, described auxiliary page includes that different captions share
Captions coded data, the identifier of described page is from captions PES bag；Captions processing module, connects
Described captions Coded Data Buffer is to read composition one from described captions Coded Data Buffer
Captions coded data required for display, is decoded the captions coded data of reading, it is thus achieved that one
The Subtitle Demonstration data of display, by required to the Subtitle Demonstration data shown and this display of composition
Captions PTS corresponding to captions coded data export in Display Register, one is shown as
The screen captions presented on screen；Display Register, connects described captions processing module to obtain one
The Subtitle Demonstration data of display and composition this show required for captions corresponding to captions coded data
PTS, when current time is to form the captions PTS that the captions coded data required for this shows is corresponding
Time, the video playback module of described receiver is play the Subtitle Demonstration data of this display, described
Display Register is also connected with efficient video coding HEVC decoder module to obtain ultra high-definition digital video letter
Number and video PTS, when current time is video PTS, at the video playback module of described receiver
Upper broadcasting described ultra high-definition digital video signal；Spatial audio coding SAC decoder module, connects described
Solve the PES bag module audio compression volume to obtain compressed audio coding data and audio frequency PTS, to acquisition
Code data carry out SAC decoding, to obtain ultra high-definition digital audio and video signals；HEVC decoder module, even
Connect described solution PES bag module with acquisition video compression coding data and video PTS, the video to acquisition
Compress coding data carries out HEVC decoding, to obtain ultra high-definition digital video signal, and described ultra high-definition
Digital video signal has three kinds of resolution: 3840 × 2160,7680 × 4320 or 15360 × 8640；
Described audio playing module connect described SAC decoder module, with obtain ultra high-definition digital audio and video signals and
Audio frequency PTS, when current time is audio frequency PTS, plays described ultra high-definition digital audio and video signals；Institute
State video playback module and connect described Display Register, with caption playing video data and ultra high-definition numeral
Video signal, Subtitle Demonstration data and ultra high-definition digital video signal are combination display pattern.
More specifically, the ultra high-definition digital television receiver of described use HEVC video decoding is further
Including: described down-converted module includes digital controlled oscillator mixing unit, and described digital controlled oscillator mixes
Frequently unit produces sine and cosine ripple sample value, and by the sine and cosine ripple sample value produced and described down coversion
The signal multiplication after described digitized in reason module, completes mixing, after obtaining than described digitized
The signal of signal lower frequency.
More specifically, the ultra high-definition digital television receiver of described use HEVC video decoding is further
Including: described demultiplexing module carries out demultiplexing also to the TS stream that described output pretreatment module exports
Obtain the network information table NIT of business information SI, BAT bouquet association table BAT or service information list
SDT, for the parsing of electronic program guide (EPG) information.
More specifically, the ultra high-definition digital television receiver of described use HEVC video decoding is further
Including: described ultra high-definition digital audio and video signals has the sample rate of every sound channel 44.1KHz, described superelevation
Clear digital audio and video signals has 22 sound channels, and being arranged as of described 22 sound channels, in the space at hearer place
In, intermediate layer is provided with 10 sound channels, and bottom is provided with 3 sound channels, and top layer is provided with 9 sound
Road.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
The ultra high-definition numeral electricity of the use HEVC video decoding that Fig. 1 illustrates according to an embodiment of the present invention
Block diagram depending on receiver.
Wherein, 1, reception antenna；2, down-converted module；3, channel data decoder module；4、
Deconvolute interleaving block；5, error correction decoding module；6, output pretreatment module；7, demultiplexing mould
Block；8, TS bag module is solved；9, PES bag module is solved；10, captions Coded Data Buffer；11、
Captions processing module；12, Display Register；13, SAC decoder module；14, HEVC decodes mould
Block；15, audio playing module；16, video playback module.
Detailed description of the invention
Below with reference to accompanying drawings the present invention is used the ultra high-definition DTV that HEVC video decodes
The embodiment of receiver is described in detail.
Fig. 1 illustrates the ultra high-definition number of the use HEVC video decoding illustrated according to an embodiment of the present invention
The block diagram of word radiotelevisor.Wherein said ultra high-definition digital television receiver includes, receives
Antenna 1, audio playing module 15 and video playback module 16, reception antenna 1 receives ultra high-definition number
Word TV signal, to play in described ultra high-definition digital television signal in audio playing module 15
Ultra high-definition digital audio and video signals, and on video playback module 16, play described ultra high-definition DTV
Ultra high-definition digital video signal in signal and Subtitle Demonstration data.Further, described use HEVC
The ultra high-definition digital television receiver of video decoding also includes that reception antenna 1 receives at terrestrial channel
The ultra high-definition digital television signal of middle transmission, it is thus achieved that radiofrequency signal；Down-converted module 2, connects
Described reception antenna 1 to receive described radiofrequency signal, by described radiofrequency signal be simulated down coversion with
It is transformed on intermediate frequency, to signal digitized on intermediate frequency, then the signal after digitized is carried out numeral
Down coversion；Channel data decoder module 3, connects described down-converted module 2 to receive under numeral
Signal after frequency conversion, and carry out successively the signal after the described Digital Down Convert received solving OFDM
Frame, solution data slice, OFDM demodulation process, to obtain the byte after OFDM demodulation processes；Go
Convolutional interleave module 4, connects described channel data decoder module 3 to receive at described OFDM demodulation
Byte after reason, and described byte is carried out the intertexture of deconvoluting that the degree of depth is 12；Error correction decoding module 5,
The interleaving block 4 that deconvolutes described in connection is to receive the signal after interweaving that deconvolutes, and to intertexture of deconvoluting
After signal carry out ISN be reed-solomon RS decoding, outer code be low-density checksum LDPC
The error correction decoding of decoding, to obtain the multiple logical data stream after error correction decoding；Output pretreatment module
6, connect described error correction decoding module 5 to receive the multiple logical data stream after described error correction decoding,
And the multiple logical data stream after described error correction decoding are merged into a transport stream TS stream；Demultiplexing
Module 7, connects described output pretreatment module 6 to receive the output of described output pretreatment module 6
TS flows, and demultiplexes described TS stream, to obtain audio TS bag, video TS bag and word respectively
Curtain TS bag, audio TS bag, video TS bag and captions TS bag have different PID Packet Identifier PID,
Described PID is the identifier of different types of data bag distribution different value in flowing for the TS after multiplexing；
Solve TS bag module 8, connect described demultiplexing module 7 with receive audio TS bag, video TS bag and
Captions TS bag, and audio TS bag, video TS bag and captions TS bag are carried out XieTSBao, to divide
Not Huo get audio frequency PES bag, video PES bag and captions PES bag, described PES bag is DTV
Elementary stream, is by compressed audio coding data, video compression coding data or captions coded number
According to packet packing and being formed plus PES packet header, each PES bag includes Presentation Time Stamp PTS,
Described PTS is used for compressed audio coding data, the video pressure representing in the PES bag of described PTS place
Contracting coded data or the predetermined reproduction time of captions coded data；Solve PES bag module 9, connect described
Solve TS bag module 8 to receive audio frequency PES bag, video PES bag and captions PES bag, and to audio frequency
PES bag, video PES bag and captions PES bag carry out XiePESBao, it is thus achieved that compressed audio coding number
According to audio frequency PTS, video compression coding data and video PTS, captions coded data and captions PTS；
Captions Coded Data Buffer 10, connect described solution PES bag module 9 with obtain captions coded data and
Captions PTS, and store captions coded data and captions PTS according to the identifier of the page specified, described
Page includes combined page and auxiliary page, and described combined page includes the captions coded data that captions are exclusive, institute
Stating the captions coded data that auxiliary page includes that different captions share, the identifier of described page is from captions
PES bag；Captions processing module 11, connects described captions Coded Data Buffer 10 with from described word
Curtain Coded Data Buffer 10 reads the captions coded data required for composition one display, will read
The captions coded data gone out is decoded, it is thus achieved that the Subtitle Demonstration data of a display, by a display
Subtitle Demonstration data and this display of composition required for captions PTS corresponding to captions coded data defeated
Going out in Display Register 12, one is shown as the screen captions presented on screen；Display is slow
Storage 12, connects described captions processing module 11 to obtain Subtitle Demonstration data and the group of a display
Become captions PTS corresponding to captions coded data required for this display, when current time for composition this
During captions PTS corresponding to captions coded data required for individual display, the video at described receiver is broadcast
Playing the Subtitle Demonstration data of this display on amplification module 16, described Display Register 12 is also connected with height
Effect Video coding HEVC decoder module 14 to obtain ultra high-definition digital video signal and video PTS,
When current time is video PTS, the video playback module 16 of described receiver is play described
Ultra high-definition digital video signal；Spatial audio coding SAC decoder module 13, connects described solution PES
Bag module 9 is to obtain compressed audio coding data and audio frequency PTS, to the compressed audio coding number obtained
According to carrying out SAC decoding, to obtain ultra high-definition digital audio and video signals；HEVC decoder module 14, even
Connect described solution PES bag module 9 to obtain video compression coding data and video PTS, acquisition is regarded
Frequently compress coding data carries out HEVC decoding, to obtain ultra high-definition digital video signal, and described superelevation
Clear digital video signal has three kinds of resolution: 3840 × 2160,7680 × 4320 or 15360 ×
8640；Described audio playing module 15 connects described SAC decoder module 13, to obtain ultra high-definition number
Word audio signal and audio frequency PTS, when current time is audio frequency PTS, play described ultra high-definition numeral
Audio signal；Described video playback module 16 connects described Display Register 12, shows with caption playing
Registration evidence and ultra high-definition digital video signal, Subtitle Demonstration data and ultra high-definition digital video signal are group
Close display pattern.
Wherein, as far back as 2004, ITU-T Video Coding Experts group (VCEG) begins one's study new skill
Art is to create a new video compression standard.In October, 2004, H.264/AVC group pair
Potential various technology are investigated.In January, 2005 VCEG meeting on, VCEG start refer to
Some theme fixed is that " key technology " is for further study.Within 2005, set up software code base to be referred to as
Key Technical Areas (KTA) is used for assessing these new " key technologies ".KTA's is soft
Part is to be developed jointly by the video group of MPEG and VCEG on the basis of conjunctive model (JM),
Project name fix tentatively into H.265 with H.NGVC (Next-generation Video Coding), this
Mesh was finally evolved in 2010 and is also referred to as HEVC (High by VCEG and MPEG joint venture
efficiency video coding).In January, 2010, VCEG and MPEG starts to initiate video compress
Technology formal proposal.Correlation technique is combined group (Joint Collaborative Team on by Video coding
Video Coding (JCT-VC)) to review and assess, its cooperative groups first session was in 2010 4
The moon holds conference, and one has 27 complete motions.Evaluation result shows, some motions are in many
Test case can reach the bit rate of only use half the visual quality that maintenance is the most identical.
In current meeting, joint project name renames as high efficiency Video coding (HEVC), and
JCT-VC group is integrated into software code base and the received text draft specification of correlation technique,
And carry out further experiment, to assess various functions.
Wherein, captions refer to that the dialogue inside with written form display TV, film, stage works etc. is non-
Presentation content, also refers to the word of films and television programs post-production.By the voice content of program with captions side
Formula shows, the spectators that audition can be helped more weak understand programme content.It addition, captions can be used for turning over
Translate foreign language program, allow and do not understand the spectators of this foreign language, the vocal cords of original work can be heard, understand joint simultaneously
Mesh content.The translation of the foreign language dialogue occurred below movie screen or television screen or other solutions
Say word and all words, as the title of film, credits present, libretto, dialogue, declarer with
There are personage introduction, place name and age etc..
Wherein, PES stream is DTV elementary stream, in digital TV broadcast signal.Wherein,
At signal transmitting terminal, by audio frequency, video and other additional datas through MPEG-2 encoder number
According to compression, forming elementary stream, namely ES stream, ES stream is packed into the code stream with packet header again,
It is exactly PES (Packetized Elementary Streams), the elementary stream i.e. packed.Briefly,
PES is ES stream packing, adds what packet header was formed.
It addition, the ultra high-definition digital television receiver of described use HEVC video decoding wraps further
Including: described down-converted module 2 includes digital controlled oscillator mixing unit, described digital controlled oscillator mixes
Frequently unit produces sine and cosine ripple sample value, and by the sine and cosine ripple sample value produced and described down coversion
The signal multiplication after described digitized in reason module 2, completes mixing, to obtain than described digitized
After the signal of signal lower frequency.
It addition, the ultra high-definition digital television receiver of described use HEVC video decoding wraps further
Include: the TS stream that described output pretreatment module 6 is exported by described demultiplexing module 7 demultiplexes
Also obtain the network information table NIT of business information SI, BAT bouquet association table BAT or service information list
SDT, for the parsing of electronic program guide (EPG) information.
Wherein, EPG is the english abbreviation of Electronic Program Guide, and the meaning is electronic programming
Menu.Index and the navigation of the miscellaneous service that digital TV broadcast signal is provided are all to pass through EPG
System completes.EPG interface typically all provide all kinds of menu, button, link etc. to be available for
User selects the assembly clicked directly on during program, the interface of EPG can also comprise all kinds of clear for user
Dynamic or the static content of multimedia look at.
It addition, the ultra high-definition digital television receiver of described use HEVC video decoding wraps further
Include: described ultra high-definition digital audio and video signals has the sample rate of every sound channel 44.1KHz, described ultra high-definition
Digital audio and video signals has 22 sound channels, being arranged as of described 22 sound channels, in the space at hearer place,
Intermediate layer is provided with 10 sound channels, and bottom is provided with 3 sound channels, and top layer is provided with 9 sound channels.
Use the ultra high-definition digital television receiver of the use HEVC video decoding of the present invention, for existing
Have in television transmission because data compression ratio is inadequate, the technical problem of multi-channel transport mechanism restriction, for greatly
The ultra high-definition digital audio and video signals of data and ultra high-definition digital video signal select suitable tool of compression,
Transform existing terrestrial transmission machine-processed to meet the requirement of ultra high-definition digital television signal transmission simultaneously, for
TV user including mobile TV spectators receives high-quality, high-resolution audio-video frequency content, from
And improve the quality of the life of people, it addition, complicated captions are processed function carry out structure arrangement also
Add in ultra high-definition digital television receiver, provided the user due captions in digital television broadcasting
Service.
Although it is understood that the present invention discloses as above with preferred embodiment, but above-mentioned enforcement
Example is not limited to the present invention.For any those of ordinary skill in the art, without departing from
Under technical solution of the present invention ambit, all may utilize the technology contents of the disclosure above to the technology of the present invention
Scheme makes many possible variations and modification, or is revised as the Equivalent embodiments of equivalent variations.Therefore,
Every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention is to above example
Any simple modification, equivalent variations and the modification done, all still falls within technical solution of the present invention protection
In the range of.
Claims (2)
1. the ultra high-definition digital television receiver using HEVC video to decode, it is characterised in that
Described receiver includes:
Reception antenna, audio playing module and video playback module, reception antenna receives ultra high-definition numeral
TV signal, to play the ultra high-definition in described ultra high-definition digital television signal in audio playing module
Digital audio and video signals, and on video playback module, play surpassing in described ultra high-definition digital television signal
High-definition digital video signal and Subtitle Demonstration data.
2. the ultra high-definition Digital TV Receiving using the decoding of HEVC video as claimed in claim 1
Machine, it is characterised in that also include:
Reception antenna, receives the ultra high-definition digital television signal of transmission in terrestrial channel, it is thus achieved that radio frequency
Signal；
Down-converted module, connects described reception antenna to receive described radiofrequency signal, penetrates described
Frequently signal simulation down coversion is to be transformed on intermediate frequency, to signal digitized on intermediate frequency, the most right
Signal after digitized carries out Digital Down Convert；
Channel data decoder module, connects described down-converted module to receive after Digital Down Convert
Signal, and carry out successively the signal after the described Digital Down Convert received solving OFDM frame, skill
Process according to sheet, OFDM demodulation, to obtain the byte after OFDM demodulation processes；
Deconvolute interleaving block, connects described channel data decoder module to receive described OFDM demodulation
Byte after process, and described byte is carried out the intertexture of deconvoluting that the degree of depth is 12；
Error correction decoding module, the interleaving block that deconvolutes described in connection is to receive the letter after interweaving that deconvolutes
Number, and to deconvolute interweave after signal carry out ISN be reed-solomon RS decoding, outer code be low
The error correction decoding of density parity check LDPC decoding, to obtain the multiple logical datas after error correction decoding
Stream；
Output pretreatment module, connects described error correction decoding module with many after receiving described error correction decoding
Individual logical data stream, and the multiple logical data stream after described error correction decoding are merged into a transmission stream
TS flows；
Demultiplexing module, connects described output pretreatment module defeated to receive described output pretreatment module
The TS stream gone out, demultiplexes described TS stream, to obtain audio TS bag, video TS respectively
Bag and captions TS bag, audio TS bag, video TS bag and captions TS bag have different bag marks
Symbol PID, described PID be different types of data bag distribution different value in flowing for the TS after multiplexing
Identifier；
Solve TS bag module, connect described demultiplexing module with receive audio TS bag, video TS bag and
Captions TS bag, and audio TS bag, video TS bag and captions TS bag are carried out XieTSBao, to divide
Not Huo get audio frequency PES bag, video PES bag and captions PES bag, described PES bag is DTV
Elementary stream, is by compressed audio coding data, video compression coding data or captions coded number
According to packet packing and being formed plus PES packet header, each PES bag includes Presentation Time Stamp PTS,
Described PTS is used for compressed audio coding data, the video pressure representing in the PES bag of described PTS place
Contracting coded data or the predetermined reproduction time of captions coded data；
Solve PES bag module, connect described solution TS bag module to receive audio frequency PES bag, video PES
Bag and captions PES bag, and carry out audio frequency PES bag, video PES bag and captions PES bag solving PES
Bag, it is thus achieved that compressed audio coding data and audio frequency PTS, video compression coding data and video PTS,
Captions coded data and captions PTS；
Captions Coded Data Buffer, connect described solution PES bag module with obtain captions coded data and
Captions PTS, and store captions coded data and captions PTS according to the identifier of the page specified, described
Page includes combined page and auxiliary page, and described combined page includes the captions coded data that captions are exclusive, institute
Stating the captions coded data that auxiliary page includes that different captions share, the identifier of described page is from captions
PES bag；
Captions processing module, connects described captions Coded Data Buffer with from described captions coded data
Buffer reads the captions coded data required for composition one display, the captions coded number that will read
According to being decoded, it is thus achieved that the Subtitle Demonstration data of a display, by the Subtitle Demonstration data shown
The captions PTS corresponding with the captions coded data required for this display of composition exports Display Register
In, one is shown as the screen captions presented on screen；
Display Register, connects described captions processing module to obtain the Subtitle Demonstration data of a display
The captions PTS corresponding with the captions coded data required for this display of composition, when current time is group
When becoming captions PTS corresponding to captions coded data required for this display, regarding of described receiver
Frequently playing the Subtitle Demonstration data of this display on playing module, described Display Register is also connected with efficiently
Video coding HEVC decoder module is to obtain ultra high-definition digital video signal and video PTS, when currently
When time is video PTS, the video playback module of described receiver is play described ultra high-definition numeral
Video signal；
Spatial audio coding SAC decoder module, connects described solution PES bag module to obtain audio frequency pressure
The compressed audio coding data obtained are carried out SAC decoding by contracting coded data and audio frequency PTS, with
To ultra high-definition digital audio and video signals；
HEVC decoder module, connect described solution PES bag module with obtain video compression coding data and
The video compression coding data obtained are carried out HEVC decoding, to obtain ultra high-definition number by video PTS
Word video signal, described ultra high-definition digital video signal has three kinds of resolution: 3840 × 2160,7680
× 4320 or 15360 × 8640；
Described audio playing module connects described SAC decoder module, to obtain ultra high-definition DAB letter
Number and audio frequency PTS, when current time is audio frequency PTS, play described ultra high-definition digital audio and video signals；
Described video playback module connects described Display Register, with caption playing video data and superelevation
Clear digital video signal, Subtitle Demonstration data and ultra high-definition digital video signal are combination display pattern；
Described down-converted module includes digital controlled oscillator mixing unit, and described digital controlled oscillator is mixed
Unit produces sine and cosine ripple sample value, and by the sine and cosine ripple sample value produced and described down-converted
The signal multiplication after described digitized in module, completes mixing, after obtaining than described digitized
The signal of signal lower frequency；
Described ultra high-definition digital audio and video signals has the sample rate of every sound channel 44.1KHz, described ultra high-definition
Digital audio and video signals has 22 sound channels, being arranged as of described 22 sound channels, in the space at hearer place,
Intermediate layer is provided with 10 sound channels, and bottom is provided with 3 sound channels, and top layer is provided with 9 sound channels.
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| CN201610530624.3A Pending CN106060647A (en) | 2013-05-15 | 2013-05-15 | Working method of ultra high-definition digital television receiver adopting caption processing module |
| CN201610321252.3A Active CN105898539B (en) | 2013-05-15 | 2013-05-15 | Use the decoded ultra high-definition digital television receiver of HEVC video |
| CN201610528078.XA Expired - Fee Related CN106027944B (en) | 2013-05-15 | 2013-05-15 | The working method of ultra high-definition digital television receiver |
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| CN106060646A (en) * | 2013-05-15 | 2016-10-26 | 蔡留凤 | Ultrahigh-definition digital television receiver applying subtitle processing module |
| CN108965930B (en) * | 2017-12-29 | 2021-05-28 | 视联动力信息技术股份有限公司 | Video data processing method and device |
| CN114025200B (en) * | 2021-09-15 | 2022-09-16 | 湖南广播影视集团有限公司 | Ultra-high definition post-production solution based on cloud technology |
| CN115348464A (en) * | 2022-08-12 | 2022-11-15 | 深圳市东明炬创电子股份有限公司 | Method for zero-delay transmission of high-definition digital video |
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| CN105898539B (en) | 2018-12-25 |
| CN106060647A (en) | 2016-10-26 |
| CN106027944A (en) | 2016-10-12 |
| CN106060646A (en) | 2016-10-26 |
| CN105959769A (en) | 2016-09-21 |
| CN103281588A (en) | 2013-09-04 |
| CN106027944B (en) | 2019-03-05 |
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Effective date of registration: 20220114 Address after: 323000 No. 139, Zhongdong Road, Liandu District, Lishui City, Zhejiang Province Patentee after: Lishui Huashu digital TV Co.,Ltd. Address before: 750002 Room 401, Building 6, Yinchuan IBI Nurturing Center, No.490 Ning'an Avenue, Jinfeng District, Yinchuan City, Ningxia Hui Autonomous Region Patentee before: The green strong intellectual property in Ningxia day runs Co.,Ltd. |
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Address after: 323000 No. 139, Zhongdong Road, Liandu District, Lishui City, Zhejiang Province Patentee after: Lishui Wasu Digital Tv Co.,Ltd. Address before: 323000 No. 139, Zhongdong Road, Liandu District, Lishui City, Zhejiang Province Patentee before: Lishui Huashu digital TV Co.,Ltd. |