CN203327190U - Television program caption processing system and broadcast system - Google Patents
Television program caption processing system and broadcast system Download PDFInfo
- Publication number
- CN203327190U CN203327190U CN2013200926909U CN201320092690U CN203327190U CN 203327190 U CN203327190 U CN 203327190U CN 2013200926909 U CN2013200926909 U CN 2013200926909U CN 201320092690 U CN201320092690 U CN 201320092690U CN 203327190 U CN203327190 U CN 203327190U
- Authority
- CN
- China
- Prior art keywords
- video
- captions
- audio
- unit
- audio frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a television program caption processing system and a broadcast system. The television program caption processing system comprises an audio and video reception unit, a channel demodulator which is connected with the audio and video reception unit and is used for extracting audio and video signals and CC format captions from an audio and video program source which is received by the audio and video reception unit and contains the CC format captions, a caption coding and decoding unit which is connected with the channel demodulator and is used for converting the CC format captions into Subtitle standard captions, and an audio and video reuse unit which is respectively connected with the channel demodulator and the caption coding and decoding unit and is used for reuse of the audio and video signals and the Subtitle standard captions. The broadcast system further comprises an audio and video output unit connected with the audio and video reuse unit, so captions of programs containing the CC format captions can be normally displayed by a television program receiver employing a DTMB standard chip.
Description
Technical field
The utility model relates to a kind of television program caption treatment system and broadcast system.
Background technology
The concealed captions (CC, Closed Caption) with explaining meaning are obstacle to be arranged or do not have the spectators of sound equipment condition designed for some hearing.CC form captions are mainly to describe the background music etc. of state, event or the film of current movie pictures by some indicative language.The NTSC standard is that National Television System Committee is responsible for developing the television broadcast transmissions of a set of Unite States Standard and receives agreement, in the NTSC standard, CC form captions is had to clear and definite regulation, comprises the definition, format specification of CC form captions etc.The television receiver that only contains corresponding CC decoding chip just can parse CC form captions, to offer the user.
The DTMB standard is the terrestrial DTV transmission national standard that China formulates, and does not comprise the definition to caption system in this standard.And the TV programme receiver of the chip of employing DTMB standard, as Set Top Box or television set, is supported the captions (typically refer to the dialogue translation, appear at the personage's that speaks below) of SUBTITLE standard usually, and do not support the CC form.
Thus, when tv programme source, for containing the program source of CC form captions the time, adopt the TV programme receiver of the chip of existing DTMB standard can't normally show captions.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of television program caption treatment system and broadcast system, so that may be utilized normal demonstration of TV programme receiver institute of chip of DTMB standard containing the captions of the program source of CC form captions.
Wherein, the television program caption treatment system comprises:
The audio frequency and video receiving element;
Channel demodulator, be connected with described audio frequency and video receiving element, for the audio/video program source that includes standard CC form captions that the audio frequency and video receiving element is received, isolates audio-video signal and CC form captions;
The captions codec unit, be connected with described channel demodulator, for institute's isolated CC form captions are converted to Subtitle standard captions;
The audio frequency and video Multiplexing Unit, respectively with channel demodulator, the captions codec unit connects, for audio-video signal and Subtitle standard captions is multiplexing.
By upper, realization will be converted to containing the program source of CC form captions the DTMB standard that may be utilized chip the TV programme receiver the program source of the normal Subtitle standard captions that show so that adopt the TV programme receiver of the chip of existing DTMB standard receive and show.
Optionally, also comprise:
The coding and decoding video unit, be connected with described channel demodulator;
The audio coding decoding unit, be connected with described channel demodulator.
By upper, can realize the compatibility of the TV programme receiver to playing different systems audio frequency and video picture.
Optionally, described audio frequency and video receiving element comprises light receiving unit.
Preferably, described light receiving unit comprises the photoelectric detector connected successively, amplifying circuit, filter circuit and demodulator circuit.
Optionally, also comprise the audio frequency and video output unit, be connected with described audio frequency and video Multiplexing Unit.
In addition, the utility model also provides a kind of broadcast system based on above-mentioned television program caption treatment system, and wherein, described audio frequency and video output unit comprises radio unit.
By upper, realization will be converted to containing the program source of CC form captions the DTMB standard that may be utilized chip the TV programme receiver the program source of the normal Subtitle standard captions that show so that adopt the TV programme receiver of the chip of existing DTMB standard to receive.
Preferably, described radio unit comprises modulation /demodulation module and the antenna connected successively.
The accompanying drawing explanation
The principle schematic that Fig. 1 is TV program broadcasting system.
Embodiment
Below in conjunction with accompanying drawing, the utility model television program caption treatment system and broadcast system are described, the NTSC standard pronunciation video program source that this system will include CC form captions is converted to the DTMB standard pronunciation video transmission stream that comprises Subtitle form captions, makes to show in the TV programme receiver of DTMB standard containing the program of CC form captions.
As shown in Figure 1, the television program caption treatment system comprises audio frequency and video receiving element 10, includes the NTSC standard pronunciation video program source of standard CC form captions for reception, and the audio/video program signal of outputting high quality.
The described NTSC standard pronunciation video program source that includes standard CC form captions passes through optical cable transmission after modulating by light-emitting device.Optical cable transmission is to using light wave as carrier wave, the transmission means that optical cable is transmission medium.The audio/video program source code that standard CC form captions will be contained in audio/video program source transmitting terminal (not shown) is converted to light signal by light-emitting device, i.e. electric light (E/O) conversion.Light sends and mainly is comprised of light source, driver and modulator.Light source adopts two kinds of semiconductor laser (LD) and semiconductor light emitting diodes (LED) usually; Driver be make photoelectric tube output accurately, fast.Modulation comprises analog-modulated and Digital Modulation.
Audio frequency and video receiving element 10 comprises corresponding light receiving unit and peripheral circuit, convert the signal of telecommunication to for the modulated lightwave signal that will come by optical cable transmission, be photoelectricity (O/E) conversion, then pass through amplification, filtering, demodulation (corresponding analog demodulator or digital demodulation) and obtain needed audio/video program signal.Accordingly, light receiving unit comprises the photoelectric detector connected successively, amplifying circuit, filter circuit and demodulator circuit.
In addition, the described NTSC standard pronunciation video program source that includes standard CC form captions also can be via satellite or electromagnetic wave transmitted, received and decoded by audio frequency and video receiving element 10, now 10 of audio frequency and video receiving elements comprise that corresponding receiver is to receive the audio/video program source, which kind of technology concrete audio frequency and video receiving element adopts not is the application's emphasis, repeats no more.
Channel demodulator (not shown), be connected with audio frequency and video receiving element 10, for the audio/video program signal that audio frequency and video receiving element 10 is received, carries out channel separation, and the TS that decodes respectively audio signal, vision signal and CC form captions transmits stream.
Coding and decoding video unit 20, by channel demodulator, with audio frequency and video receiving element 10, be connected, for to the decoding video signal after described channel separation, the vision signal that reduction audio/video program source transmitting terminal is exported, and according to the display format outputting video signal of TV programme receiver.For example: the aspect ratio of the video information received is 16: 9, and the aspect ratio that the TV programme receiver can show is 4: 3, and the 20 foundations displaying ratio of 4: 3 in coding and decoding video unit carries out recompile to video image.
Audio coding decoding unit 30, be connected with audio frequency and video receiving element 10 by channel demodulator, for the audio signal to after described channel separation, decoded, and carries out the audio frequency reduction, and according to the broadcasting standard output multi-channel audio signal of receiving terminal.
Wherein, in the CC form captions that decode, also include this section captions the demonstration start time information, show the horizontal vertical coordinate information of termination time information, display status information (information such as font size, font), display position.
Subtitle form captions are drawing of seeds layers, and the form with map overlay when showing is superimposed on video pictures.At first captions codec unit 40 creates the blank sheet layer in cataloged procedure; Secondly fill this blank sheet layer according to the demonstration start time information of this section captions that decode, the horizontal vertical coordinate information of demonstration termination time information, display status information and display position, generate the captions of Subtitle standard.The function of described captions codec unit 40 can realize by the AVS encoder.
Audio frequency and video Multiplexing Unit 50, with coding and decoding video unit 20, audio coding decoding unit 30 and captions codec unit 40, be connected respectively, synthetic for the captions of described vision signal, audio signal and Subtitle standard being carried out to channel, the audio video transmission stream of output DTMB standard.
Broadcast system based on the television program caption treatment system provided by the utility model, on the basis of television program caption treatment system, also comprise audio frequency and video output unit 60.Described audio frequency and video output unit 60 is connected with described audio frequency and video Multiplexing Unit 50, carries out modulation treatment for the audio video transmission stream to described DTMB standard, and exports with wireless by TV broadcast network.Optionally, audio frequency and video output unit 60 realizes by radio unit, and this radio unit comprises modulation /demodulation module and antenna, and described modulation /demodulation module is for the carrier frequency at 2.4GHz by the audio video transmission of DTMB standard stream, and exported by antenna.Be understood that, if be applied to cable TV network, audio frequency and video output unit 60 can be by outputs such as I2C bus or usb bus.
TV programme receiver (not shown) receives the audio video transmission stream of above-mentioned DTMB standard, the rear demonstration of being decoded by TV broadcast network.Described TV programme receiver is one of following: TV, PDA, smart mobile phone.
At least comprise the radio receiving unit, audio/video decoding unit and the display unit that connect successively in this TV programme receiver, the TV programme receiver is prior art, and is not the application's emphasis, therefore repeat no more.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (7)
1. a television program caption treatment system, is characterized in that, comprising:
The audio frequency and video receiving element;
Channel demodulator, be connected with described audio frequency and video receiving element, for the audio/video program source that includes standard CC form captions that the audio frequency and video receiving element is received, isolates audio-video signal and CC form captions;
The captions codec unit, be connected with described channel demodulator, for institute's isolated CC form captions are converted to Subtitle standard captions;
The audio frequency and video Multiplexing Unit, respectively with channel demodulator, the captions codec unit connects, for audio-video signal and Subtitle standard captions is multiplexing.
2. television program caption treatment system according to claim 1, is characterized in that, also comprises:
The coding and decoding video unit, be connected with described channel demodulator;
The audio coding decoding unit, be connected with described channel demodulator.
3. television program caption treatment system according to claim 1, is characterized in that, described audio frequency and video receiving element comprises light receiving unit.
4. television program caption treatment system according to claim 3, is characterized in that, described light receiving unit comprises the photoelectric detector connected successively, amplifying circuit, filter circuit and demodulator circuit.
5. television program caption treatment system according to claim 1, is characterized in that, also comprises the audio frequency and video output unit, with described audio frequency and video Multiplexing Unit, is connected.
6. the broadcast system based on the arbitrary described television program caption treatment system of claim 1 to 5, is characterized in that, described audio frequency and video output unit comprises radio unit.
7. broadcast system according to claim 6, is characterized in that, described radio unit comprises modulation /demodulation module and the antenna connected successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200926909U CN203327190U (en) | 2013-02-28 | 2013-02-28 | Television program caption processing system and broadcast system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200926909U CN203327190U (en) | 2013-02-28 | 2013-02-28 | Television program caption processing system and broadcast system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203327190U true CN203327190U (en) | 2013-12-04 |
Family
ID=49666479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200926909U Expired - Fee Related CN203327190U (en) | 2013-02-28 | 2013-02-28 | Television program caption processing system and broadcast system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203327190U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111356025A (en) * | 2018-12-24 | 2020-06-30 | 深圳Tcl新技术有限公司 | Multi-subtitle display method, intelligent terminal and storage medium |
| CN114302215A (en) * | 2021-12-29 | 2022-04-08 | 北京奕斯伟计算技术有限公司 | Video data stream decoding system, method, electronic device, and medium |
-
2013
- 2013-02-28 CN CN2013200926909U patent/CN203327190U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111356025A (en) * | 2018-12-24 | 2020-06-30 | 深圳Tcl新技术有限公司 | Multi-subtitle display method, intelligent terminal and storage medium |
| CN114302215A (en) * | 2021-12-29 | 2022-04-08 | 北京奕斯伟计算技术有限公司 | Video data stream decoding system, method, electronic device, and medium |
| CN114302215B (en) * | 2021-12-29 | 2023-09-29 | 北京奕斯伟计算技术股份有限公司 | Video data stream decoding system, method, electronic device and medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111343460B (en) | Receiving device, display equipment and receiving method | |
| CN102088631B (en) | Live and demand broadcast method of digital television (TV) programs as well as related device and system | |
| KR20090076032A (en) | Method for providing additional information of video using visible communication and apparatus for the same | |
| CN1722801A (en) | Emergency alert message data structure, emergency alert message processing method and broadcast receiver | |
| CN203574802U (en) | Multi-sense audio-video system | |
| CN104541511A (en) | Signal transceiving apparatus and signal transceiving method | |
| KR20070002274A (en) | Broadcasting transmission apparatus and transmission method for broadcasting signal thereof, and broadcasting receiving apparatus and reservation recording method thereof | |
| CN102710980A (en) | Method and device for rapidly changing channel of digital television set top box | |
| CN102907111A (en) | Reception device, display control method, transmission device, and transmission method | |
| CN103067747A (en) | Interactive digital TV display mode | |
| CN203327190U (en) | Television program caption processing system and broadcast system | |
| US10097869B2 (en) | Method and system for embedding metadata in multiplexed analog videos broadcasted through digital broadcasting medium | |
| CN102710933B (en) | DTV coding and decoding device and DTV decoding method | |
| CN102547377A (en) | Method and device for transmitting video data to Set-top box | |
| CN103024450A (en) | Method and system for achieving interactive television through near field communication (NFC) technology | |
| CN108965953A (en) | It is a kind of to receive DVB-C and DTMB simple two-way signal set-top-box system and method simultaneously | |
| US20160063949A1 (en) | Image processing system, apparatus and method | |
| CN204887296U (en) | Cable television fuses STB with terrestrial digital TV and IPTV terminal | |
| US20190052837A1 (en) | Video signal conversion device, video signal conversion method, video signal conversion system, control program, and recording medium | |
| KR102165449B1 (en) | multimedia apparatus and method for controlling cursor thereof | |
| CN207638801U (en) | It is a kind of to receive DVB-C and DTMB simple two-way signal set-top boxes simultaneously | |
| CN112333535A (en) | Emergency broadcast padding scene switching method and system | |
| You et al. | Integrated mobile terrestrial digital multimedia broadcasting player compliant with the T-DMB, CMMB, and ISDB-T standards | |
| KR100755839B1 (en) | Broadcasting system and method for supporting sound multiplex | |
| KR100742311B1 (en) | Subway Real Time Mobile High Quality Digital Broadcast System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151116 Address after: 266101 Haier Information Park, 1 Haier Road, hi tech park, Laoshan District, Qingdao, Shandong Patentee after: Qingdao Haier Electric Appliance Co., Ltd. Patentee after: haier group corporation Patentee after: Qingdao Haier Photoelectric Co., Ltd. Patentee after: QINGDAO HAIER MULTI-MEDIA CO., LTD. Address before: 266101 Haier Information Park, 1 Haier Road, hi tech park, Laoshan District, Qingdao, Shandong Patentee before: Qingdao Haier Electric Appliance Co., Ltd. Patentee before: haier group corporation Patentee before: Qingdao Haier Photoelectric Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20210228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |