CN201114071Y - Multipath analog and digital audio frequency mixing transmission light emitting machine - Google Patents
Multipath analog and digital audio frequency mixing transmission light emitting machine Download PDFInfo
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- CN201114071Y CN201114071Y CNU2007200710133U CN200720071013U CN201114071Y CN 201114071 Y CN201114071 Y CN 201114071Y CN U2007200710133 U CNU2007200710133 U CN U2007200710133U CN 200720071013 U CN200720071013 U CN 200720071013U CN 201114071 Y CN201114071 Y CN 201114071Y
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Abstract
The utility model relates to a multi-path simulating and digital audio mixing transmission luminescence machine, comprising an input audio signal digital processing module, a serial channel coding module, a photoelectric conversion module, a singlechip control module and a main clock module. Compared with the prior art, the utility model overcomes the shortcomings that the available multi-path audio transmission optical transceiver usually uses a complicated special integrated circuit, the specificity is strong and the digital and analog are split and satisfies the requirement of a radiated television using the audio optical transceiver in the transition period from the analog mode to the all-digital mode; moreover, the multi-path simulating and digital audio mixing transmission luminescence machine reasonably adopts the advanced integrated circuit to ensure that each index exceeds the broadcast grade a requirement of the ministry of radio, film and television in China; although the multi-path simulating and digital audio mixing transmission luminescence machine is multifunctional, the index is still superior to that of other like products; moreover, the production cost is close to that of a single functional machine.
Description
Technical field
The utility model relates to the radio and television optical communication equipment, particularly relates to a kind of multi-channel analog and the luminous machine of digital audio mixed transport.
Background technology
At present, the general list of known audio frequency optical transceiver is that multi-channel analog audio frequency optical transceiver or list are multi-path digital audio frequency optical transceiver.At television equipment by analog form current to digital transition, transmit needs in order to adapt to the many optical fiber of analog TV broadcasting and digital broadcast television and the present situation of depositing and the multiple audio signal of the inter-sectional high-quality of radio and television, and common optical transceiver specificity is strong, this give the user particularly the transmission of relaying live of broadcasting and TV use and back up and make troubles.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of multi-channel analog wide, easy to use and luminous machine of digital audio mixed transport of using for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: multi-channel analog and the luminous machine of digital audio mixed transport, it is characterized in that, comprise the input audio signal digital signal processing module, and change and gang up coding module, electrooptic conversion module, the monolithic control module, the master clock module, described input audio signal digital signal processing module with and change and to gang up coding module and be connected, described and commentaries on classics is ganged up coding module and is connected with electrooptic conversion module, described monolithic control module is connected with the input audio signal digital signal processing module, described master clock module and input audio signal digital signal processing module and and change and gang up coding module and be connected.
Described input audio signal digital signal processing module comprises at least one analogue audio frequency AD conversion unit, at least one digital audio sample conversion lock unit.
The digital signal output end of described at least one analogue audio frequency AD conversion unit with and change the digital signal input end gang up coding module and be connected one to one, and its sampling clock signal output interconnect the back with and change a clock signal input terminal ganging up coding module and be connected, its bit clock signal output part interconnects the back and is connected with another clock signal input terminal that coding module is ganged up in commentaries on classics also.
The digital signal output end of described at least one digital audio sample conversion lock unit with and change the digital signal input end gang up coding module and be connected one to one, described and change the output of ganging up coding module and be connected with the input of electrooptic conversion module.
The control signal output ends of described monolithic control module and analogue audio frequency AD conversion unit, digital audio sample conversion lock unit, and change the signal input end of ganging up coding module and be connected.
The clock signal output terminal of described master clock module and analogue audio frequency AD conversion unit, digital audio sample conversion lock unit, and change the master clock signal input of ganging up coding module and be connected.
The total quantity of described analogue audio frequency AD conversion unit and digital audio sample conversion lock unit is two to 12, respectively with and change the digital signal input end one gang up coding module and be connected to 12.
Described analogue audio frequency AD conversion unit comprises the three-way analog to digital conversion circuit of analogue audio frequency.
Described digital audio sample conversion lock unit comprises AES sampling conversion synchronous circuit.
Described master clock module comprises clock generator.
Compared with prior art, it is strong that the utility model has overcome the optical transceiver of multichannel voice frequency transmission in the market complicated application-specific integrated circuit (ASIC) specificity commonly used, the shortcoming of digital simulation split has well satisfied specific demand from analog form to the radio and television in totally digitilized transition period that used the audio frequency optical transceiver by; And the utility model rationally adopts advanced integrated circuit to make every index surpass the broadcasting first class requirement of the national Ministry of Radio, Film and Television, though multi-functional index still is better than other like products, and cost of manufacture is near single function machine.
Description of drawings
Fig. 1 is the structural representation of the utility model multi-channel analog and the luminous machine of digital audio mixed transport;
Fig. 2 is the structural representation of embodiment of the present utility model.
Wherein: 1-input audio signal digital signal processing module, 2-also changes and gangs up coding module, 3-electrooptic conversion module, 4-monolithic control module, 5-master clock module, 6-analogue audio frequency AD conversion unit, 7-digital audio sample conversion lock unit.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, multi-channel analog and the luminous machine of digital audio mixed transport, comprise input audio signal digital signal processing module 1, and change and gang up coding module 2, electrooptic conversion module 3, monolithic control module 4, master clock module 5, described input audio signal digital signal processing module 1 with and change and to gang up coding module 2 and be connected, described and commentaries on classics is ganged up coding module 2 and is connected with electrooptic conversion module 3, described monolithic control module 4 is connected with input audio signal digital signal processing module 1, described master clock module 5 and input audio signal digital signal processing module 1 and and change and gang up coding module 2 and be connected.
Described input audio signal digital signal processing module 1 comprises at least one analogue audio frequency AD conversion unit 6, at least one digital audio sample conversion lock unit 7; The digital signal output end of described at least one analogue audio frequency AD conversion unit 6 with and change the digital signal input end gang up coding module 2 and be connected one to one, and its sampling clock signal output interconnect the back with and change a clock signal input terminal ganging up coding module 2 and be connected, its bit clock signal output part interconnects the back and is connected with another clock signal input terminal that coding module 2 is ganged up in commentaries on classics also; The digital signal output end of described at least one digital audio sample conversion lock unit 7 with and change the digital signal input end gang up coding module 2 and be connected one to one, described and change the output of ganging up coding module 2 and be connected with the input of electrooptic conversion module 3; The control signal output ends of described monolithic control module 4 and analogue audio frequency AD conversion unit 6, digital audio sample conversion lock unit 7, and change the signal input end of ganging up coding module 2 and be connected; The clock signal output terminal of described master clock module 5 and analogue audio frequency AD conversion unit 6, digital audio sample conversion lock unit 7, and change the master clock signal input of ganging up coding module 2 and be connected; The total quantity of described analogue audio frequency AD conversion unit 6 and digital audio sample conversion lock unit 7 is two to 12, respectively with and change the digital signal input end one gang up coding module 2 and be connected to 12; Described analogue audio frequency AD conversion unit 6 comprises the three-way analog to digital conversion circuit of analogue audio frequency; Described digital audio sample conversion lock unit 7 comprises AES sampling conversion synchronous circuit; Described master clock module 5 comprises clock generator.
The three-way analog to digital conversion circuit of analogue audio frequency when the analogue audio frequency AD conversion unit of present embodiment is the analog signal input adopts commercially available chip PCM1800 or PCM1802, and be that the AES sampling conversion and the synchronous circuit in digital audio and video signals when input adopts commercially available chip DIX4192 or CPLD, and change and gang up commercially available chip TLK1501 or the HDMP1032 of coding module employing, it is 48KHZ that the master clock module adopts commercially available active crystal oscillator or PLL1700 monolithic control module to adopt commercially available PIC16F84 electrooptic conversion module to adopt the sampling clock of the analogue audio frequency analog-to-digital conversion module of commercially available chip PT7311-41 or ATR9002 present embodiment, the bit clock is 3.072MHZ, and it is 12.288MH or 24.576MHZ that all the module master work clocks except that electrooptic conversion module must have same clock generator that frequency is provided.
Claims (10)
1. multi-channel analog and the luminous machine of digital audio mixed transport, it is characterized in that, comprise the input audio signal digital signal processing module, and change and gang up coding module, electrooptic conversion module, the monolithic control module, the master clock module, described input audio signal digital signal processing module with and change and to gang up coding module and be connected, described and commentaries on classics is ganged up coding module and is connected with electrooptic conversion module, described monolithic control module is connected with the input audio signal digital signal processing module, described master clock module and input audio signal digital signal processing module and and change and gang up coding module and be connected.
2. multi-channel analog according to claim 1 and the luminous machine of digital audio mixed transport, it is characterized in that described input audio signal digital signal processing module comprises at least one analogue audio frequency AD conversion unit, at least one digital audio sample conversion lock unit.
3. multi-channel analog according to claim 2 and the luminous machine of digital audio mixed transport, it is characterized in that, the digital signal output end of described at least one analogue audio frequency AD conversion unit with and change the digital signal input end gang up coding module and be connected one to one, and its sampling clock signal output interconnect the back with and change a clock signal input terminal ganging up coding module and be connected, its bit clock signal output part interconnects the back and is connected with another clock signal input terminal that coding module is ganged up in commentaries on classics also.
4. multi-channel analog according to claim 2 and the luminous machine of digital audio mixed transport, it is characterized in that, the digital signal output end of described at least one digital audio sample conversion lock unit with and change the digital signal input end gang up coding module and be connected one to one, described and change the output of ganging up coding module and be connected with the input of electrooptic conversion module.
5. multi-channel analog according to claim 1 and the luminous machine of digital audio mixed transport, it is characterized in that, the control signal output ends of described monolithic control module and analogue audio frequency AD conversion unit, digital audio sample conversion lock unit, and change the signal input end of ganging up coding module and be connected.
6. multi-channel analog according to claim 1 and the luminous machine of digital audio mixed transport, it is characterized in that, the clock signal output terminal of described master clock module and analogue audio frequency AD conversion unit, digital audio sample conversion lock unit, and change the master clock signal input of ganging up coding module and be connected.
7. multi-channel analog according to claim 2 and the luminous machine of digital audio mixed transport, it is characterized in that, the total quantity of described analogue audio frequency AD conversion unit and digital audio sample conversion lock unit is two to 12, respectively with and change the digital signal input end one gang up coding module and be connected to 12.
8. multi-channel analog according to claim 2 and the luminous machine of digital audio mixed transport is characterized in that described analogue audio frequency AD conversion unit comprises the three-way analog to digital conversion circuit of analogue audio frequency.
9. multi-channel analog according to claim 2 and the luminous machine of digital audio mixed transport is characterized in that, described digital audio sample conversion lock unit comprises AES sampling conversion synchronous circuit.
10. multi-channel analog according to claim 1 and the luminous machine of digital audio mixed transport is characterized in that described master clock module comprises clock generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200710133U CN201114071Y (en) | 2007-06-12 | 2007-06-12 | Multipath analog and digital audio frequency mixing transmission light emitting machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200710133U CN201114071Y (en) | 2007-06-12 | 2007-06-12 | Multipath analog and digital audio frequency mixing transmission light emitting machine |
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| CN201114071Y true CN201114071Y (en) | 2008-09-10 |
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| CNU2007200710133U Expired - Fee Related CN201114071Y (en) | 2007-06-12 | 2007-06-12 | Multipath analog and digital audio frequency mixing transmission light emitting machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917232A (en) * | 2010-09-16 | 2010-12-15 | 中国电子科技集团公司第八研究所 | High-speed digital-analog mixed-light transceiver device |
| CN103346837A (en) * | 2013-07-04 | 2013-10-09 | 无锡思泰迪半导体有限公司 | Optical transceiver system in integrated design |
| CN104731748A (en) * | 2015-03-31 | 2015-06-24 | 北京百度网讯科技有限公司 | Method and device for collecting multichannel audio data |
| CN108599844A (en) * | 2018-01-25 | 2018-09-28 | 南昌大学 | A kind of synchronous translation apparatus and its working method based on visible light communication technology |
| CN109660933A (en) * | 2019-01-30 | 2019-04-19 | 北京视通科技有限公司 | A kind of device of simultaneous transmission multi-channel analog audio |
| CN111176052A (en) * | 2019-12-25 | 2020-05-19 | 华东师范大学 | Method for realizing coding by switching laser state and non-laser state of optical structure |
-
2007
- 2007-06-12 CN CNU2007200710133U patent/CN201114071Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917232A (en) * | 2010-09-16 | 2010-12-15 | 中国电子科技集团公司第八研究所 | High-speed digital-analog mixed-light transceiver device |
| CN101917232B (en) * | 2010-09-16 | 2014-01-08 | 中国电子科技集团公司第八研究所 | High-speed digital-analog mixed-light transceiver device |
| CN103346837A (en) * | 2013-07-04 | 2013-10-09 | 无锡思泰迪半导体有限公司 | Optical transceiver system in integrated design |
| CN103346837B (en) * | 2013-07-04 | 2016-08-24 | 无锡思泰迪半导体有限公司 | A kind of optical transceiver system of Integrated design |
| CN104731748A (en) * | 2015-03-31 | 2015-06-24 | 北京百度网讯科技有限公司 | Method and device for collecting multichannel audio data |
| CN104731748B (en) * | 2015-03-31 | 2018-01-09 | 北京百度网讯科技有限公司 | Multi-path audio-frequency data acquisition method and device |
| CN108599844A (en) * | 2018-01-25 | 2018-09-28 | 南昌大学 | A kind of synchronous translation apparatus and its working method based on visible light communication technology |
| CN108599844B (en) * | 2018-01-25 | 2021-03-26 | 南昌大学 | Simultaneous interpretation device based on visible light communication technology and working method thereof |
| CN109660933A (en) * | 2019-01-30 | 2019-04-19 | 北京视通科技有限公司 | A kind of device of simultaneous transmission multi-channel analog audio |
| CN111176052A (en) * | 2019-12-25 | 2020-05-19 | 华东师范大学 | Method for realizing coding by switching laser state and non-laser state of optical structure |
| CN111176052B (en) * | 2019-12-25 | 2021-05-07 | 华东师范大学 | Method for realizing coding by switching laser state and non-laser state of optical structure |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20100612 |