CN204887408U - Disjunctor formula optic fibre terminal digital audio transmitter - Google Patents
Disjunctor formula optic fibre terminal digital audio transmitter Download PDFInfo
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- CN204887408U CN204887408U CN201520478536.4U CN201520478536U CN204887408U CN 204887408 U CN204887408 U CN 204887408U CN 201520478536 U CN201520478536 U CN 201520478536U CN 204887408 U CN204887408 U CN 204887408U
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Abstract
The utility model provides a disjunctor formula optic fibre terminal digital audio transmitter, includes: a fiber connector, adc, digital power amplification chipset, electro -optical converter, , adc, digital power amplification chipset, electro -optical converter order are in proper order connected, still include photoelectric converter, the audio decoder ware, power amplifier, the 2nd fiber connector, photoelectric converter, audio decoder ware, power amplifier order in proper order connect. The utility model provides a high -quality tone quality optic fibre digital audio transmitter is fit for more remote audio transmission, can get rid of the interference and the noise that produce in the transmission course to be fit for multichannel audio signal's transmission.
Description
Technical field
The utility model relates to a kind of acoustic frequency transmission apparatus, is specifically related to a kind of Contiuum type optic fibre connector Digital Audio Transmission device.
Background technology
Along with the development of audio-visual technology, people constantly propose higher requirement to high-quality audio-visual playback, traditional audio-visual devices mostly needs a large amount of stube cables to be connected with other ancillary equipment, due to the limitation of equipment, general user is difficult to connect voluntarily, and the audio transmission with duration distance easily produces distortion phenomenon especially, and with a large amount of noise, and for the audio signal that some bandwidth are higher, then transmit difficulty.
Utility model content
For solving the problem, the utility model provides a kind of Contiuum type optic fibre connector Digital Audio Transmission device.
A kind of Contiuum type optic fibre connector Digital Audio Transmission device, comprising:
Signal transmission unit divides and signal receive section; Described signal transmission unit divides and passes through Fiber connection with signal receive section;
Described signal transmission unit divides and comprises first optical fiber connector, for connecting described optic fibre input end;
Analog to digital converter, for carrying out analog-to-digital conversion to input signal, obtains switching signal; Digital power amplification chip group, for described switching signal being amplified, is amplified signal; Electrical to optical converter, for being converted to light signal by described amplifying signal; Described first optical fiber connector, analog to digital converter, digital power amplification chip group, electrical to optical converter are linked in sequence successively;
Described signal receive section comprises second optical fiber connector, for connecting described fiber-optic output; Optical-electrical converter, for being converted to digital signal by receiving optical signals; Audio decoder, described audio decoder is used for that the digitized audio message read is converted to simulated audio signal and exports, and obtains switching signal; Power amplifier, described power amplifier is used for described switching signal to amplify; Described second optical fiber connector, optical-electrical converter, audio decoder, power amplifier are linked in sequence successively.
Preferred version, also comprise multi-channel signal mixer, described multi-channel signal mixer is by multiple diode and connect and form, the positive pole of each diode is connected with the first optical fiber connector output respectively, the input signal of multichannel different frequency mixes mutually at the negative pole of diode D, is then connected with analog to digital converter input.
Preferred version, also comprises audio defeat circuit; Described audio defeat circuit comprises capacitance and power amplifier, and described capacitance is with power amplifier and connect rear input and be connected with the first optical fiber connector output, and output is connected with analog to digital converter.
Preferred version, described first optical fiber connector, second optical fiber connector are AES/EBU interface.
Preferred version, also comprises optical modulator, between described optical modulator described second optical fiber connector of access and optical-electrical converter, for modulating the light signal received and reduce.
The beneficial effects of the utility model are: provide a kind of high-quality tonequality optical fiber and digital acoustic frequency transmission apparatus, are applicable to longer-distance audio transmission, can remove the interference and noise that produce in transmitting procedure, and are applicable to the transmission of multipath audio signal.
Accompanying drawing explanation
Fig. 1 is the structural representation of the audio devices of the utility model one preferred embodiment.
Embodiment
For the ease of understanding the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in detail.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to the embodiment described by this specification.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.
Unless otherwise defined, all technology of using of this specification and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in specification of the present utility model in this specification just in order to describe specific embodiment is not for limiting the utility model.The term "and/or" that this specification uses comprises arbitrary and all combinations of one or more relevant Listed Items.
Below in conjunction with accompanying drawing and example, the utility model is further illustrated.
As shown in Figure 1: the utility model embodiment provides a kind of Contiuum type optic fibre connector Digital Audio Transmission device, can transmit at a distance, and loyalty ensure that original signal of music.Refer to Fig. 1, a kind of Contiuum type optic fibre connector Digital Audio Transmission implement body that the utility model embodiment provides comprises: signal transmission unit divides 100 and signal receive section 200; Signal transmission unit divide 100 and signal receive section 200 pass through Fiber connection.Signal transmission unit divides 100 to comprise first optical fiber connector 101, for connecting described optic fibre input end; Analog to digital converter 102, for carrying out analog-to-digital conversion to input signal, obtains switching signal; Digital power amplification chip group 103, for described switching signal being amplified, is amplified signal; Electrical to optical converter 104, for being converted to light signal by described amplifying signal; First optical fiber connector 101, analog to digital converter 102, digital power amplification chip group 103, electrical to optical converter 104 are linked in sequence successively; Signal receive section 200 comprises second optical fiber connector 201, for connecting described optic fibre input end; Optical-electrical converter 202, for being converted to digital signal by receiving optical signals; Audio decoder 203, described audio decoder is used for that the digitized audio message read is converted to simulated audio signal and exports, and obtains switching signal; Power amplifier 204, for amplifying described switching signal; Second optical fiber connector 201, optical-electrical converter 202, audio decoder 203, power amplifier 204 are linked in sequence successively.Between a kind of Contiuum type optic fibre connector Digital Audio Transmission device modules group provided the utility model embodiment with the example in a reality below, communication process is described: analog to digital converter 102; can be PCM1808A/D transducer, carry the inadequate passage of ADC for supplementary digital power amplification chip group 103; Digital power amplification chip group 103, for realizing the powerful signal output function of high-fidelity by wide for pwm pulse key signal coupling in the constant voltage of power delivery.It should be noted that, digital power amplification chip self can realize 2*200W power stage, in the utility model embodiment, uses 3 groups of digital power amplification chips can realize 6*200W power stage, meets powerful demand; Divide 100 can also add audio defeat circuit 105 at signal transmission unit; Described audio defeat circuit 105 comprises capacitance and power amplifier, described capacitance is with power amplifier and connect rear input and be connected with the first optical fiber connector 101 output, output is connected with analog to digital converter 102, major part can be eliminated and be mixed into noise signal in audio frequency, before being transmitted noise is removed, can ensure that the audio frequency of more high-quality exports; Multi-channel signal mixer can also be comprised, described multi-channel signal mixer is by multiple diode and connect and form, the positive pole of each diode is connected with the first optical fiber connector 101 output respectively, the input signal of multichannel different frequency mixes mutually at the negative pole of diode D, then be connected with analog to digital converter 102 input, multiple AES/EBU interface is set in peripheral hardware part simultaneously, can multipath signal propagation be met, use convenient simultaneously; In order to compensate the dropout in transfer process, also can optical modulator be set, between described optical modulator described second optical fiber connector 201 of access and optical-electrical converter 202, for modulating the light signal received and reduce.Power amplifier 204, for described switching signal is amplified, described power amplifier comprises analogue audio frequency power amplification circuit, described power amplifier is A/B class or category-B audio power amplifying circuit, the utility model embodiment is in conjunction with the technical characterstic of AB class and category-B power amplifier, and application of pure Digital Transmission goes out signal, pure digi-tal process and amplifying signal, Digital Signal Processing and amplifying technique realize the integrality of Signal transmissions and amplification, and loyalty ensure that original signal of music.
The above, above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art has been to be understood that; It still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
It should be noted that, above-mentioned each technical characteristic continues combination mutually, is formed not in above-named various embodiment, is all considered as the scope that the utility model specification is recorded; Further, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection range that all should belong to the utility model claims.
Claims (5)
1. a Contiuum type optic fibre connector Digital Audio Transmission device, is characterized in that, comprising:
Signal transmission unit divides and signal receive section; Described signal transmission unit divides and passes through Fiber connection with signal receive section;
Described signal transmission unit divides and comprises first optical fiber connector, for connecting described optic fibre input end;
Analog to digital converter, for carrying out analog-to-digital conversion to input signal, obtains switching signal; Digital power amplification chip group, for described switching signal being amplified, is amplified signal; Electrical to optical converter, for being converted to light signal by described amplifying signal; Described first optical fiber connector, analog to digital converter, digital power amplification chip group, electrical to optical converter are linked in sequence successively;
Described signal receive section comprises second optical fiber connector, for connecting described fiber-optic output; Optical-electrical converter, for being converted to digital signal by receiving optical signals; Audio decoder, described audio decoder is used for that the digitized audio message read is converted to simulated audio signal and exports, and obtains switching signal; Power amplifier, described power amplifier is used for described switching signal to amplify; Described second optical fiber connector, optical-electrical converter, audio decoder, power amplifier are linked in sequence successively.
2. a kind of Contiuum type optic fibre connector Digital Audio Transmission device according to claim 1, it is characterized in that, also comprise multi-channel signal mixer, described multi-channel signal mixer is by multiple diode and connect and form, the positive pole of each diode is connected with the first optical fiber connector output respectively, the input signal of multichannel different frequency mixes mutually at the negative pole of diode D, is then connected with analog to digital converter input.
3. a kind of Contiuum type optic fibre connector Digital Audio Transmission device according to claim 1 and 2, is characterized in that, also comprise audio defeat circuit; Described audio defeat circuit comprises capacitance and power amplifier, and described capacitance is with power amplifier and connect rear input and be connected with the first optical fiber connector output, and output is connected with analog to digital converter.
4. a kind of Contiuum type optic fibre connector Digital Audio Transmission device according to claim 3, it is characterized in that, described first optical fiber connector, second optical fiber connector are AES/EBU interface.
5. a kind of Contiuum type optic fibre connector Digital Audio Transmission device according to claim 3, it is characterized in that, also comprise optical modulator, between described optical modulator described second optical fiber connector of access and optical-electrical converter, for modulating the light signal received and reduce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520478536.4U CN204887408U (en) | 2015-07-06 | 2015-07-06 | Disjunctor formula optic fibre terminal digital audio transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520478536.4U CN204887408U (en) | 2015-07-06 | 2015-07-06 | Disjunctor formula optic fibre terminal digital audio transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204887408U true CN204887408U (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520478536.4U Expired - Fee Related CN204887408U (en) | 2015-07-06 | 2015-07-06 | Disjunctor formula optic fibre terminal digital audio transmitter |
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| Country | Link |
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| CN (1) | CN204887408U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098071A (en) * | 2016-08-03 | 2016-11-09 | 国网江西省电力公司检修分公司 | Intelligent Mobile Robot audio frequency processing system and method |
| CN113141561A (en) * | 2020-01-19 | 2021-07-20 | 神讯电脑(昆山)有限公司 | Device for realizing long-distance audio signal playing |
-
2015
- 2015-07-06 CN CN201520478536.4U patent/CN204887408U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098071A (en) * | 2016-08-03 | 2016-11-09 | 国网江西省电力公司检修分公司 | Intelligent Mobile Robot audio frequency processing system and method |
| CN113141561A (en) * | 2020-01-19 | 2021-07-20 | 神讯电脑(昆山)有限公司 | Device for realizing long-distance audio signal playing |
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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: 20151217 Address after: Two road 518000 Guangdong city of Shenzhen province Nanshan District Xili Kan Industrial Building 5 floor No. 11 B Patentee after: Shenzhen Ai Detai Science and Technology Ltd. Address before: Longgang District of Shenzhen City, Guangdong province 518000 Pinghu Street Ping West Road No. 7 Building thaw Lake century garden A block 504 Patentee before: Shenzhen Co., Ltd of Wang Ke intellectual property operation centre |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20180706 |