CN205356535U - Support AC -3 audio frequency to transmit professional satellite television who thoroughly - Google Patents
Support AC -3 audio frequency to transmit professional satellite television who thoroughly Download PDFInfo
- Publication number
- CN205356535U CN205356535U CN201620042507.8U CN201620042507U CN205356535U CN 205356535 U CN205356535 U CN 205356535U CN 201620042507 U CN201620042507 U CN 201620042507U CN 205356535 U CN205356535 U CN 205356535U
- Authority
- CN
- China
- Prior art keywords
- audio frequency
- transparent transmission
- audio
- mainboard
- unit
- 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.)
- Active
Links
- 238000005538 encapsulation Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 41
- 238000000605 extraction Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The utility model relates to a broadcast digital television technical field, in particular to support AC -3 audio frequency to transmit professional satellite television who thoroughly, it passes through to pass including mainboard, front panel, the AC -3 audio frequency of setting in the casing and handles board and power strip, the right side of mainboard is provided with the front panel, the AC -3 audio frequency passes through to pass and handles board and power strip, and this front panel, AC -3 audio frequency pass through to pass and handle board and power strip and pass through the wire and link to each other with the mainboard, it passes processing unit through built -in AC -3 audio frequency thoroughly, realizes that the AC -3 audio frequency of AES3 form encapsulation passes signal output thoroughly, realizes highly integrated, the low costization of product through embedded IC integrated circuit, tuner tuner unit.
Description
Technical field
This utility model relates to broadcast digital TV technical field, particularly to a kind of professional satellite radiotelevisor supporting AC-3 audio frequency transparent transmission to export.
Background technology
The television network broadcast of China is basically completed digital improvement, is speeding up to high Qinghua simultaneously.AC-3 coded format, as the audio decoding techniques of universally acknowledged excellent performance, is widely used in digital TV in high resolution transmission system.DVB is if able to transparent transmission exports original AC-3 audio signal, broadcast relay system is omitted from the link of AC-3 decoding, re-encoding, save the requirement of DVB decoding output AC-35.1 sound channel, Second Pass encoder is also omitted from the requirement of AC-3 re-encoding simultaneously, thus saving development cost, saving BOM cost, saving AC-3 encoding and decoding technique mandate expense.
Utility model content
The purpose of this utility model is in that the defect for prior art and deficiency, a kind of simple in construction is provided, a kind of professional satellite radiotelevisor supporting AC-3 audio frequency transparent transmission to export reasonable in design, easy to use, it is by built-in AC-3 audio frequency transparent transmission processing unit, realize the AC-3 audio frequency transparent transmission signal output of AES3 form encapsulation, realize the Highgrade integration of product, cost degradation by embedded IC integrated circuit, Tuner tuner unit.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of professional satellite radiotelevisor supporting AC-3 audio frequency transparent transmission to export described in the utility model, it includes the mainboard, front panel, AC-3 audio frequency transparent transmission process plate and the power panel that are arranged in casing, the right side of described mainboard is provided with front panel, AC-3 audio frequency transparent transmission processes plate and power panel, and this front panel, AC-3 audio frequency transparent transmission are processed plate and be connected with mainboard by wire with power panel；It is characterized in that: described mainboard includes main control chip, LNB control unit and CA smart card processing unit, described main control chip adopts with LNB control unit and CA smart card processing unit and electrically connects；Described main control chip includes CPU control unit, Tuner input block, audio/video decoding unit and audio frequency and video output unit, and described CPU control unit is connected with Tuner input block, audio/video decoding unit, audio frequency and video output unit respectively by data conductor；Described AC-3 audio frequency transparent transmission processes plate and includes AC-3 audio extraction unit, the encapsulation of AC-3 audio frequency and AES3 output driver element.
Further, described main control chip adopts BCM7358 single-chip.
Further, described casing adopts 19 cun wide, 1U height cabinet.
Further, described AC-3 audio frequency is encapsulated as AES3 format analysis processing unit, adopts the output of AES3 form transparent transmission.
After adopting said structure, this utility model has the beneficial effect that a kind of professional satellite radiotelevisor supporting AC-3 audio frequency transparent transmission to export described in the utility model, it is by built-in AC-3 audio frequency transparent transmission processing unit, realize the AC-3 audio frequency transparent transmission signal output of AES3 form encapsulation, realize the Highgrade integration of product, cost degradation by embedded IC integrated circuit, Tuner tuner unit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the illustrative view of functional configuration of mainboard in Fig. 1.
Description of reference numerals:
1, casing；2, mainboard；21, main control chip；211, CPU control unit；212, Tuner input block；213, audio/video decoding unit；214, audio frequency and video output unit；22, LNB control unit；23, CA smart card processing unit；3, front panel；4, AC-3 audio frequency transparent transmission processes plate；41, AC-3 audio extraction unit；42, AC-3 audio frequency encapsulation；43, AES3 exports driver element；5, power panel；
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is further described.
As shown in Figure 1, a kind of professional satellite radiotelevisor supporting AC-3 audio frequency transparent transmission to export described in the utility model, it includes the mainboard 2, front panel 3, AC-3 audio frequency transparent transmission process plate 4 and the power panel 5 that are arranged in casing 1, the right side of described mainboard 2 is provided with front panel 3, AC-3 audio frequency transparent transmission processes plate 4 and power panel 5, and this front panel 3, AC-3 audio frequency transparent transmission are processed plate 4 and be connected with mainboard 2 by wire with power panel 5；Described mainboard 2 includes main control chip 21, LNB control unit 22 and CA smart card processing unit 23, and described main control chip 21 adopts with LNB control unit 22 and CA smart card processing unit 23 and electrically connects；Described main control chip 21 includes CPU control unit 211, Tuner input block 212, audio/video decoding unit 213 and audio frequency and video output unit 214, and described CPU control unit 211 is connected with Tuner input block 212, audio/video decoding unit 213, audio frequency and video output unit 214 respectively by data conductor；Described AC-3 audio frequency transparent transmission processes plate 4 and includes AC-3 audio extraction unit 41, AC-3 audio frequency encapsulation 42 and AES3 output driver element 43.
Preferred as one of the present utility model, described main control chip 21 adopts BCM7358 single-chip.
Preferred as one of the present utility model, described casing 1 adopts 19 cun wide, 1U height cabinet.
Preferred as one of the present utility model, described AC-3 audio frequency encapsulation 42 is AES3 format analysis processing unit, adopts the output of AES3 form transparent transmission.
As it is shown in figure 1, the design is made up of mainboard, front panel, AC-3 audio frequency transparent transmission process plate and power panel.Mainboard processes plate with power panel, front panel, AC-3 audio frequency transparent transmission respectively and is connected.220V AC signal from city's net input is converted to the+5V needed for system ,+12V and-12V DC voltage by power panel, provides power supply to whole receiver；Front panel provides LCD liquid crystal display and button operation；AC-3 audio frequency transparent transmission processes plate and realizes the AC-3 audio frequency transparent transmission signal output of AES3 form encapsulation.
Being illustrated in figure 2 the main board function figure of this utility model specific embodiment, mainboard includes Tuner input block, LNB control unit, CA smart card processing unit, audio/video decoding unit and audio frequency and video output unit.Outdoor reception antenna LNB module carries out parameter setting and manipulation by the LNB control unit of receiver mainboard, mainboard is from the satellite-signal of the CA encryption of reception antenna LNB module input L-band to mainboard Tuner input block, Tuner input block completes high-frequency tuning and QPSK demodulation, and the high resolution audio and video compressed bit stream (being called for short TS stream) after demodulation is first sent to CA smart card processing unit.
Under CPU control unit controls, the control extension of CA smart card processing unit reception MPEG2 and H.264 high definition ciphered program and management information, scrambled control word is decrypted through CA smart card, then scrambled control word information export CPU control unit, and CPU control unit utilizes scrambled control word to carry out the descrambling of program.Transparent program after descrambling is delivered to audio/video decoding unit and is completed the audio/video decoding of MPEG2 and H.264 compression program.Finally, the uncompressed program of decoded high resolution audio and video, on the one hand by the output of HDMI high-definition digital audio-video interface, meanwhile, exports AC-3 audio signal with AES3 form.
In this utility model, CA smart card processing unit realizes the digital television program deciphering of CA encryption, and audio/video decoding unit realizes MPEG2 and the digital TV in high resolution program decoding H.264 encoded.
In this utility model, casing adopts 19 cun wide of standard, professional housing design high for 1U, it is adaptable to 19 cun of standard cabinets are installed and used.
In this utility model, AC-3 audio frequency transparent transmission processes plate and realizes the AC-3 audio frequency transparent transmission signal output of AES3 form encapsulation.
In this utility model, main control chip adopts Broadcom company of U.S. latest digital television-specific chip BCM7358, BCM7358 is integrated with CPU control unit, Tuner input block, audio/video decoding unit and audio frequency and video output unit, thus realizing Highgrade integration and the cost degradation of decoder.
A kind of professional satellite radiotelevisor supporting AC-3 audio frequency transparent transmission to export described in the utility model, it is by built-in AC-3 audio frequency transparent transmission processing unit, realize the AC-3 audio frequency transparent transmission signal output of AES3 form encapsulation, realize the Highgrade integration of product, cost degradation by embedded IC integrated circuit, Tuner tuner unit.
The above is only better embodiment of the present utility model, therefore all equivalences done according to the structure described in this utility model patent claim, feature and principle change or modify, and are all included in this utility model patent claim.
Claims (4)
1. the professional satellite radiotelevisor supporting that AC-3 audio frequency transparent transmission exports, it includes the mainboard, front panel, AC-3 audio frequency transparent transmission process plate and the power panel that are arranged in casing, the right side of described mainboard is provided with front panel, AC-3 audio frequency transparent transmission processes plate and power panel, and this front panel, AC-3 audio frequency transparent transmission are processed plate and be connected with mainboard by wire with power panel；It is characterized in that: described mainboard includes main control chip, LNB control unit and CA smart card processing unit, described main control chip adopts with LNB control unit and CA smart card processing unit and electrically connects；Described main control chip includes CPU control unit, Tuner input block, audio/video decoding unit and audio frequency and video output unit, and described CPU control unit is connected with Tuner input block, audio/video decoding unit, audio frequency and video output unit respectively by data conductor；Described AC-3 audio frequency transparent transmission processes plate and includes AC-3 audio extraction unit, the encapsulation of AC-3 audio frequency and AES3 output driver element.
2. a kind of professional satellite radiotelevisor supporting AC-3 audio frequency transparent transmission to export according to claim 1, it is characterised in that: described main control chip adopts BCM7358 single-chip.
3. a kind of professional satellite radiotelevisor supporting AC-3 audio frequency transparent transmission to export according to claim 1, it is characterised in that: described casing adopts 19 cun wide, 1U height cabinet.
4. a kind of professional satellite radiotelevisor supporting AC-3 audio frequency transparent transmission to export according to claim 1, it is characterised in that: described AC-3 audio frequency is encapsulated as AES3 format analysis processing unit, adopts the output of AES3 form transparent transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620042507.8U CN205356535U (en) | 2016-01-18 | 2016-01-18 | Support AC -3 audio frequency to transmit professional satellite television who thoroughly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620042507.8U CN205356535U (en) | 2016-01-18 | 2016-01-18 | Support AC -3 audio frequency to transmit professional satellite television who thoroughly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205356535U true CN205356535U (en) | 2016-06-29 |
Family
ID=56176089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620042507.8U Active CN205356535U (en) | 2016-01-18 | 2016-01-18 | Support AC -3 audio frequency to transmit professional satellite television who thoroughly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205356535U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369457A (en) * | 2017-09-04 | 2017-11-21 | 成都德芯数字科技股份有限公司 | The voice data transmitting methods of AC 3 and device |
| CN107566894A (en) * | 2017-10-18 | 2018-01-09 | 北京流金岁月文化传播股份有限公司 | A kind of apparatus and method for the video and audio transcoding for supporting double transcodings to export |
| CN108322777A (en) * | 2018-01-10 | 2018-07-24 | 成都驰通数码系统有限公司 | A kind of system and processing method for supporting AC-3, AAC, DRA audio transparent transmission |
-
2016
- 2016-01-18 CN CN201620042507.8U patent/CN205356535U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369457A (en) * | 2017-09-04 | 2017-11-21 | 成都德芯数字科技股份有限公司 | The voice data transmitting methods of AC 3 and device |
| CN107566894A (en) * | 2017-10-18 | 2018-01-09 | 北京流金岁月文化传播股份有限公司 | A kind of apparatus and method for the video and audio transcoding for supporting double transcodings to export |
| CN108322777A (en) * | 2018-01-10 | 2018-07-24 | 成都驰通数码系统有限公司 | A kind of system and processing method for supporting AC-3, AAC, DRA audio transparent transmission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203120083U (en) | Set top box provided with timing function | |
| CN205356535U (en) | Support AC -3 audio frequency to transmit professional satellite television who thoroughly | |
| CN101252637A (en) | Combined digital set top boxes based on software radio | |
| CN102025938A (en) | Ground digital television receiver | |
| CN209030341U (en) | A kind of AVS2 4K ultra high-definition decoding transcoding all-in-one machine | |
| CN2938639Y (en) | TV receiver with DVB-T digital signal receiving function | |
| CN102421018A (en) | Portable digital television | |
| CN208581320U (en) | A kind of TV set-top box with speaker | |
| CN209448823U (en) | A kind of 4K ultra high-definition decoder for supporting fingerprint embedding | |
| CN205356536U (en) | Support professional satellite television of SDI output | |
| EP1830472A2 (en) | Signal processing device, in particular for receiving television and/or radio signals | |
| CN202907109U (en) | Bus of split type television | |
| CN201163798Y (en) | Television receiver | |
| CN207235010U (en) | A kind of AVS+ professional satellite television receivers for supporting dual-audio to export | |
| CN201910886U (en) | Set-top box supporting two-way program output | |
| CN207218959U (en) | A kind of AVS+ professional satellite television receivers for supporting double transcoding outputs | |
| CN103402064A (en) | Digital satellite television receiving device | |
| CN203801042U (en) | High-definition satellite TV decoder receiving NDS CA encrypted programs | |
| CN209030350U (en) | A kind of AVS2 4K ultra high-definition decoder | |
| CN206331755U (en) | A kind of ultra-thin split type network advertising machine of playable terrestrial DTV | |
| CN206100259U (en) | PCB board, display screen and novel TV | |
| CN207505068U (en) | A kind of plate card type multi-channel A VS+ integrates transcoder | |
| CN202395922U (en) | Portable digital television | |
| CN203801030U (en) | Multi-program decrypted high-definition satellite decoder with IP output | |
| CN204377023U (en) | There is the ground of USB interface, cable digital TV tuner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100041 Unit 08, 01, 02, 13/F, Room 101, Building 1 to 17, Yard 27, Jianguo Road, Chaoyang District, Beijing Patentee after: Beijing liujinnian Technology Co.,Ltd. Address before: 100041 room 7485, building 3, 3 Xijing Road, Badachu Science Park, Shijingshan District, Beijing Patentee before: BEIJING YOUXIANG ZHIHENG TECHNOLOGY CO.,LTD. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240416 Address after: Room 304, 3rd Floor, Building B, No. 219 Tianfu Third Street, Chengdu High tech Zone, China (Sichuan) Pilot Free Trade Zone, Sichuan Province, 610095 Patentee after: Chengdu jinmaike Technology Co.,Ltd. Country or region after: China Address before: 100041 Unit 08, 01, 02, 13/F, Room 101, Building 1 to 17, Yard 27, Jianguo Road, Chaoyang District, Beijing Patentee before: Beijing liujinnian Technology Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |