CN203661054U - Data transmission circuit and data transmission system - Google Patents
Data transmission circuit and data transmission system Download PDFInfo
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- CN203661054U CN203661054U CN201320789168.6U CN201320789168U CN203661054U CN 203661054 U CN203661054 U CN 203661054U CN 201320789168 U CN201320789168 U CN 201320789168U CN 203661054 U CN203661054 U CN 203661054U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 59
- 238000001914 filtration Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000004088 simulation Methods 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 8
- 230000005236 sound signal Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 101100112673 Rattus norvegicus Ccnd2 gene Proteins 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
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- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
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Abstract
The utility model discloses a data transmission circuit and a data transmission system. The data transmission circuit comprises an A/D conversion module, an emission module and a receiving module, wherein the A/D conversion module is used to receive a simulation signal and convert the simulation signal into an I2S signal; the emission module is used to convert the I2S signal into a WiFi signal and emit the signal to the outside world; the receiving module is used to receive the WiFi signal emitted by the emission module. The A/D conversion module is connected with the emission module. The emission module and the receiving module are connected through WiFi. The data transmission system comprises a television and a loudspeaker box or a computer and the loudspeaker box. The television or the computer comprises the A/D conversion module. The loudspeaker box comprises the emission module and the receiving module. Delay generated by the data transmission circuit during data transmission is small.
Description
Technical field
The utility model relates to wireless data transmission technology field, particularly a kind of data transmission circuit and data transmission system.
Background technology
WiFi is the short-distance wireless communication technology being proposed by the compatible alliance of wireless ethernet (WECA), can in the scope of 100 meters, carry out the transmission of radio signal.
In prior art, for fear of the trouble of wiring, WiFi has been applied in wireless sound box, for example, utilizes WiFi to connect audiogenic device (as television set) and WiFi audio amplifier, realizes Wireless sound by external WiFi audio amplifier.At present, common practices is audiogenic device is first changed audio signal by A/D after, then to carry out pcm encoder, and then send by WiFi module.Because pcm encoder process need takies the regular hour, and the buffering course before pcm encoder also needs to take the regular hour, therefore produced delay phenomenon, even can cause the picture of audiogenic device (as television set) demonstration and the nonsynchronous phenomenon of voice signal that WiFi audio amplifier sends, affect user's use.
Utility model content
Main purpose of the present utility model is to provide the less data transmission circuit of a kind of delay and data transmission system.
To achieve these goals, the utility model provides a kind of data transmission circuit, comprise for receive analog signal and by this analog signal be converted to the A/D modular converter of I2S signal, for described I2S signal being converted to WiFi signal the outside transmitter module of transmitting, and for receiving the receiver module of described WiFi signal of described transmitter module transmitting; Wherein, described A/D modular converter is connected with described transmitter module; Between described transmitter module and receiver module, be connected by WiFi.
Preferably, described A/D modular converter is connected by USB interface with described transmitter module.
Preferably, described transmitter module comprises high pass filter and WiFi transmitting element, and wherein, the input of described high pass filter is connected with the output of described A/D modular converter, and the output of described high pass filter is connected with the input of described WiFi transmitting element; Described high pass filter receives described I2S signal, and it is carried out being sent to described WiFi transmitting element after filtering, and described WiFi transmitting element will be sent to described receiver module after filtered described I2S signal changes into WiFi signal.
Preferably, described transmitter module comprises band stop filter and WiFi transmitting element, and wherein, the input of described band stop filter is connected with the output of described A/D modular converter, and the output of described band stop filter is connected with the input of described WiFi transmitting element; Described band stop filter receives described I2S signal, and it is carried out being sent to described WiFi transmitting element after filtering, and described WiFi transmitting element will be sent to described receiver module after filtered described I2S signal changes into WiFi signal.
Preferably, described transmitter module comprises high pass filter, band stop filter and WiFi transmitting element, wherein, the input of described high pass filter is connected with the output of described A/D modular converter, described high pass filter output be connected with the input of described band stop filter, the output of described band stop filter is connected with the input of described WiFi transmitting element; Described I2S signal is sent to described WiFi transmitting element successively after described high pass filter and described band stop filter filtering, and described WiFi transmitting element will be sent to described receiver module after filtered described I2S signal changes into WiFi signal.
Preferably, described transmitter module comprises band stop filter, high pass filter and WiFi transmitting element, wherein, the input of described band stop filter is connected with the output of described A/D modular converter, described band stop filter output be connected with the input of described high pass filter, the output of described high pass filter is connected with the input of described WiFi transmitting element; Described I2S signal is sent to described WiFi transmitting element successively after described band stop filter and described high pass filter filters, and described WiFi transmitting element will be sent to described receiver module after filtered described I2S signal changes into WiFi signal.
Preferably, described high pass filter comprises the first operational amplifier, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first electric capacity, the second electric capacity, input and output; Wherein, the inverting input of described the first operational amplifier passes through the first grounding through resistance, and is connected with the output of described the first operational amplifier by the second resistance; The output of described the first operational amplifier is connected with the output of described high pass filter; The in-phase input end of described the first operational amplifier is by the 3rd grounding through resistance, and be connected with one end of described the first electric capacity, the other end of described the first electric capacity is connected with the output of described the first operational amplifier by the 4th resistance, and the other end of described the first electric capacity is connected with the input of described high pass filter by the second electric capacity.
Preferably, described band stop filter comprises the second operational amplifier, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, input and output; Wherein, the inverting input of described the second operational amplifier is by described the 5th grounding through resistance; The output of described the second operational amplifier is connected with the output of described band stop filter, and is connected with the inverting input of described the second operational amplifier by described the 6th resistance, and is connected with one end of described the 7th resistance; The in-phase input end of described the second operational amplifier is connected with the input of described band stop filter with the 9th resistance by the 8th resistance of series connection, and is connected with the input of described band stop filter with the 4th electric capacity by the 3rd electric capacity of series connection; The other end of described the 7th resistance is connected with the common port of described the 3rd electric capacity and the 4th electric capacity; Described the 5th electric capacity one end is connected with the common port of described the 8th resistance and the 9th resistance, other end ground connection.
The utility model also provides a kind of data transmission system, comprise television set and audio amplifier, described television set comprises for receiving analog signal and this analog signal being converted to the A/D modular converter of I2S signal, and described audio amplifier comprises transmitter module for described I2S signal being converted to WiFi signal outwards transmitting and for receiving the receiver module of described WiFi signal of described transmitter module transmitting; Wherein, described A/D modular converter is connected with described transmitter module; Between described transmitter module and receiver module, be connected by WiFi.
The utility model also provides a kind of data transmission system, comprise computer and audio amplifier, described computer comprises for receiving analog signal and this analog signal being converted to the A/D modular converter of I2S signal, and described audio amplifier comprises transmitter module for described I2S signal being converted to WiFi signal outwards transmitting and for receiving the receiver module of described WiFi signal of described transmitter module transmitting; Wherein, described A/D modular converter is connected with described transmitter module; Between described transmitter module and receiver module, be connected by WiFi.
The data transmission circuit that the utility model provides comprises the transmitter module for receiving analog signal and this analog signal being converted to the A/D modular converter of I2S signal, also outwards launching for I2S signal being converted to WiFi signal, and for receiving the receiver module of WiFi signal of transmitter module transmitting, in the time of transfer of data, it is very little, almost negligible that analog signal is converted to the shared time of I2S signal by A/D modular converter.The delay when data transmission circuit that the utility model provides transmits data is less.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the utility model data transmission circuit preferred embodiment;
Fig. 2 is the circuit theory diagrams of the receiver module of the utility model data transmission circuit;
Fig. 3 is the principle schematic of the first embodiment of the transmitter module of the utility model data transmission circuit;
Fig. 4 is the principle schematic of the second embodiment of the transmitter module of the utility model data transmission circuit;
Fig. 5 is the principle schematic of the 3rd embodiment of the transmitter module of the utility model data transmission circuit;
Fig. 6 is the principle schematic of the 4th embodiment of the transmitter module of the utility model data transmission circuit;
Fig. 7 is the circuit theory schematic diagram of the high pass filter of the utility model data transmission circuit;
Fig. 8 is the circuit theory schematic diagram of the band stop filter of the utility model data transmission circuit.
Realization, functional characteristics and the advantage of the utility model object, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
With reference to Fig. 1, Fig. 1 is the circuit theory diagrams of the utility model data transmission circuit preferred embodiment.
The utility model provides a kind of data transmission circuit, this data transmission circuit comprise for receive analog signal and by this analog signal be converted to the A/D modular converter 10 of I2S signal, for I2S signal being converted to WiFi signal the outside transmitter module 20 of transmitting, and for receiving the receiver module 30 of the WiFi signal that transmitter module 20 launches; Wherein, A/D modular converter 10 is connected with transmitter module 20; Between transmitter module 20 and receiver module 30, be connected by WiFi.
In the present embodiment, above-mentioned A/D modular converter 10 is mainly used in receiving analog signal, such as audio signal or vision signal etc.It is very little that analog signal is converted to the shared time of I2S signal by A/D modular converter 10, is generally Microsecond grade, almost negligible.
In the present embodiment, above-mentioned A/D modular converter 10 can be arranged on the mainboard of the terminal such as television set, computer.Preferably, A/D modular converter 10 is connected by USB interface with transmitter module 20, and receiver module 30 is located on WiFi audio amplifier.Therefore, above-mentioned transmitter module 20 and receiver module 30 can be interconnected with multiple terminal, are more convenient to user's use.
In the time that above-mentioned receiver module 30 is located on WiFi audio amplifier, with reference to Fig. 2, Fig. 2 is the circuit theory diagrams of the receiver module of the utility model data transmission circuit, and this receiver module 30 comprises WiFi receiving element 301, power amplification unit 302 and loudspeaker 303; Wherein, WiFi receiving element 301 receives the WiFi signal that WiFi transmitting element 202 sends, and this WiFi signal is sent to loudspeaker 303 after power amplification unit 302 amplifies.
The set-up mode that it should be noted that above-mentioned A/D modular converter 10, transmitter module 20 and receiver module 30 also can adopt other modes to arrange, and is only a kind of preferred implementation in the present embodiment.
The data transmission circuit that the utility model provides comprises the transmitter module 20 for receiving analog signal and this analog signal being converted to the A/D modular converter 10 of I2S signal, also outwards launching for I2S signal being converted to WiFi signal, and for receiving the receiver module 30 of the WiFi signal that transmitter module 20 launches, in the time of transfer of data, it is very little, almost negligible that analog signal is converted to the shared time of I2S signal by A/D modular converter 10.The delay when data transmission circuit that the utility model provides transmits data is less.
In the present embodiment, transmitter module 20 can adopt following four kinds of schemes:
The first scheme: with reference to Fig. 3, Fig. 3 is the principle schematic of the first embodiment of the transmitter module of the utility model data transmission circuit, this transmitter module 20 comprises high pass filter 201 and WiFi transmitting element 202, wherein, the input of high pass filter 201 is connected with the output of A/D modular converter 10, and the output of high pass filter 201 is connected with the input of WiFi transmitting element 202; High pass filter 201 receives I2S signal, and it is carried out being sent to WiFi transmitting element 202 after filtering, and WiFi transmitting element 202 will be sent to receiver module 30 after filtered I2S signal changes into WiFi signal.
First scheme: with reference to Fig. 4, Fig. 4 is the principle schematic of the second embodiment of the transmitter module of the utility model data transmission circuit, this transmitter module 20 comprises band stop filter 203 and WiFi transmitting element 202, wherein, the input of band stop filter 203 is connected with the output of A/D modular converter 10, and the output of band stop filter 203 is connected with the input of WiFi transmitting element 202; Band stop filter 203 receives I2S signal, and it is carried out being sent to WiFi transmitting element 202 after filtering, and WiFi transmitting element 202 will be sent to receiver module 30 after filtered I2S signal changes into WiFi signal.
The third scheme: with reference to Fig. 5, Fig. 5 is the principle schematic of the 3rd embodiment of the transmitter module of the utility model data transmission circuit, this transmitter module 20 comprises high pass filter 201, band stop filter 203 and WiFi transmitting element 202, wherein, the input of high pass filter 201 is connected with the output of A/D modular converter 10, the output of high pass filter 201 is connected with the input of band stop filter 203, and the output of band stop filter 203 is connected with the input of WiFi transmitting element 202; I2S signal is sent to WiFi transmitting element 202 successively after high pass filter 201 and band stop filter 203 filtering, and WiFi transmitting element 202 will be sent to receiver module 30 after filtered I2S signal changes into WiFi signal.
The 4th kind of scheme: with reference to Fig. 6, Fig. 6 is the principle schematic of the 4th embodiment of the transmitter module of the utility model data transmission circuit, this transmitter module 20 comprises band stop filter 203, high pass filter 201 and WiFi transmitting element 202, wherein, the input of band stop filter 203 is connected with the output of A/D modular converter 10, the output of band stop filter 203 is connected with the input of high pass filter 201, and the output of high pass filter 201 is connected with the input of WiFi transmitting element 202; I2S signal is sent to WiFi transmitting element 202 successively after band stop filter 203 and high pass filter 201 filtering, and WiFi transmitting element 202 will be sent to receiver module 30 after filtered I2S signal changes into WiFi signal.
Due to design former of loudspeaker 303 thereby cannot send the sound below 80HZ, therefore can be by the corresponding high pass filter 201 of design, the cut-off frequency that makes this high pass filter 201 is 80HZ, voice signal that can be below filtering 80HZ by this high pass filter 201, thus the tonequality of WiFi audio amplifier can be promoted.
In addition, can also promote by this high pass filter 201 gain of audio signal, for example, promote the gain of the audio signal between 80HZ to 100HZ, the size of gain can be selected according to actual needs, preferably, 2dB can be promoted, the low-frequency effect of audio signal can be effectively promoted.
Adopt band stop filter 203 can promote the gain of high-frequency signal, for example, can improve the gain of the audio signal between 6KHZ to 10KHZ, the size of gain can be selected according to actual needs, preferably, 4dB can be promoted, the high-frequency effect of audio signal can be effectively promoted.
Particularly, with reference to Fig. 7, Fig. 7 is the circuit theory schematic diagram of the high pass filter of the utility model data transmission circuit, and this high pass filter 201 comprises the first operational amplifier OP1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first electric capacity R5, the second electric capacity R6, input Vin1 and output end vo ut1; Wherein, the inverting input of the first operational amplifier OP1 passes through the first resistance R 1 ground connection, and is connected with the output of the first operational amplifier OP1 by the second resistance R 2; The output of the first operational amplifier OP1 is connected with the output end vo ut1 of high pass filter 201; The in-phase input end of the first operational amplifier OP1 is by R3 the 3rd grounding through resistance, and be connected with one end of the first capacitor C 1, the other end of the first capacitor C 1 is connected with the output of the first operational amplifier OP1 by the 4th resistance R 4, and the other end of the first capacitor C 1 is connected with the input Vin1 of high pass filter 201 by the second capacitor C 2.
Particularly, with reference to Fig. 8, Fig. 8 is the circuit theory schematic diagram of the band stop filter of the utility model data transmission circuit, and this band stop filter 203 comprises the second operational amplifier OP2, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the 3rd capacitor C 3, the 4th capacitor C 4, the 5th capacitor C 5, input Vin2 and output end vo ut2; Wherein, the inverting input of the second operational amplifier OP2 is by the 5th resistance R 5 ground connection; The output of the second operational amplifier OP2 is connected with the output end vo ut2 of band stop filter 203, and is connected with the inverting input of the second operational amplifier OP2 by the 6th resistance R 6, and is connected with one end of the 7th resistance R 7; The in-phase input end of the second operational amplifier OP2 is connected with the input Vin2 of band stop filter 203 with the 9th resistance R 9 by the 8th resistance R 8 of series connection, and is connected with the input Vin2 of band stop filter 203 with the 4th capacitor C 4 by the 3rd capacitor C 3 of series connection; The other end of the 7th resistance R 7 is connected with the common port of the 3rd capacitor C 3 and the 4th capacitor C 4; The 5th capacitor C 5 one end are connected with the common port of the 8th resistance R 8 and the 9th resistance R 9, other end ground connection.
In the present embodiment, the cut-off frequency of this high pass filter 201 can be set by adjusting the value of the first capacitor C 1, the second capacitor C 2, the 3rd resistance R 3 and the 4th resistance R 4; The gain of this high pass filter 201 can be set by adjusting the value of the first resistance R 1 and the second resistance R 2.
By adjusting the gain that this band stop filter 203 extremely can be set of the 5th resistance R 5 and the 6th resistance R 6; The cut-off frequency of this band stop filter 203 can be set by adjusting the value of the 3rd capacitor C 3, the 4th capacitor C 4, the 5th capacitor C 5, the 7th resistance R 7, the 8th resistance R 8 and the 9th resistance R 9.
The utility model also provides a kind of data transmission system, this data transmission system comprises television set and audio amplifier, this television set comprises A/D modular converter 10, this audio amplifier comprises transmitter module 20 and receiver module 30, the structure of this A/D modular converter 10, transmitter module 20 and receiver module 30 can, with reference to above-described embodiment, not repeat them here.Naturally, because the data transmission system of the present embodiment has adopted the technical scheme of above-mentioned A/D modular converter 10, transmitter module 20 and receiver module 30, therefore this data transmission system has above-mentioned A/D modular converter 10, transmitter module 20 and all beneficial effects of receiver module 30.
The utility model also provides a kind of data transmission system, this data transmission system comprises computer and audio amplifier, this computer comprises A/D modular converter 10, this audio amplifier comprises transmitter module 20 and receiver module 30, the structure of this A/D modular converter 10, transmitter module 20 and receiver module 30 can, with reference to above-described embodiment, not repeat them here.Naturally, because the data transmission system of the present embodiment has adopted the technical scheme of above-mentioned A/D modular converter 10, transmitter module 20 and receiver module 30, therefore this data transmission system has above-mentioned A/D modular converter 10, transmitter module 20 and all beneficial effects of receiver module 30.
These are only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a data transmission circuit, it is characterized in that, comprise for receive analog signal and by this analog signal be converted to the A/D modular converter of I2S signal, for described I2S signal being converted to WiFi signal the outside transmitter module of transmitting, and for receiving the receiver module of described WiFi signal of described transmitter module transmitting; Wherein, described A/D modular converter is connected with described transmitter module; Between described transmitter module and receiver module, be connected by WiFi.
2. data transmission circuit as claimed in claim 1, is characterized in that, described A/D modular converter is connected by USB interface with described transmitter module.
3. data transmission circuit as claimed in claim 1, it is characterized in that, described transmitter module comprises high pass filter and WiFi transmitting element, wherein, the input of described high pass filter is connected with the output of described A/D modular converter, and the output of described high pass filter is connected with the input of described WiFi transmitting element; Described high pass filter receives described I2S signal, and it is carried out being sent to described WiFi transmitting element after filtering, and described WiFi transmitting element will be sent to described receiver module after filtered described I2S signal changes into WiFi signal.
4. data transmission circuit as claimed in claim 1, it is characterized in that, described transmitter module comprises band stop filter and WiFi transmitting element, wherein, the input of described band stop filter is connected with the output of described A/D modular converter, and the output of described band stop filter is connected with the input of described WiFi transmitting element; Described band stop filter receives described I2S signal, and it is carried out being sent to described WiFi transmitting element after filtering, and described WiFi transmitting element will be sent to described receiver module after filtered described I2S signal changes into WiFi signal.
5. data transmission circuit as claimed in claim 1, it is characterized in that, described transmitter module comprises high pass filter, band stop filter and WiFi transmitting element, wherein, the input of described high pass filter is connected with the output of described A/D modular converter, described high pass filter output be connected with the input of described band stop filter, the output of described band stop filter is connected with the input of described WiFi transmitting element; Described I2S signal is sent to described WiFi transmitting element successively after described high pass filter and described band stop filter filtering, and described WiFi transmitting element will be sent to described receiver module after filtered described I2S signal changes into WiFi signal.
6. data transmission circuit as claimed in claim 1, it is characterized in that, described transmitter module comprises band stop filter, high pass filter and WiFi transmitting element, wherein, the input of described band stop filter is connected with the output of described A/D modular converter, described band stop filter output be connected with the input of described high pass filter, the output of described high pass filter is connected with the input of described WiFi transmitting element; Described I2S signal is sent to described WiFi transmitting element successively after described band stop filter and described high pass filter filters, and described WiFi transmitting element will be sent to described receiver module after filtered described I2S signal changes into WiFi signal.
7. the data transmission circuit as described in claim 3,5 or 6, is characterized in that, described high pass filter comprises the first operational amplifier, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first electric capacity, the second electric capacity, input and output; Wherein, the inverting input of described the first operational amplifier passes through the first grounding through resistance, and is connected with the output of described the first operational amplifier by the second resistance; The output of described the first operational amplifier is connected with the output of described high pass filter; The in-phase input end of described the first operational amplifier is by the 3rd grounding through resistance, and be connected with one end of described the first electric capacity, the other end of described the first electric capacity is connected with the output of described the first operational amplifier by the 4th resistance, and the other end of described the first electric capacity is connected with the input of described high pass filter by the second electric capacity.
8. the data transmission circuit as described in claim 4 to 6 any one, it is characterized in that, described band stop filter comprises the second operational amplifier, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, input and output; Wherein, the inverting input of described the second operational amplifier is by described the 5th grounding through resistance; The output of described the second operational amplifier is connected with the output of described band stop filter, and is connected with the inverting input of described the second operational amplifier by described the 6th resistance, and is connected with one end of described the 7th resistance; The in-phase input end of described the second operational amplifier is connected with the input of described band stop filter with the 9th resistance by the 8th resistance of series connection, and is connected with the input of described band stop filter with the 4th electric capacity by the 3rd electric capacity of series connection; The other end of described the 7th resistance is connected with the common port of described the 3rd electric capacity and the 4th electric capacity; Described the 5th electric capacity one end is connected with the common port of described the 8th resistance and the 9th resistance, other end ground connection.
9. a data transmission system, is characterized in that, comprises television set and audio amplifier, and described television set comprises the A/D modular converter as described in claim 1 to 8 any one, and described audio amplifier comprises transmitter module and the receiver module as described in claim 1 to 8 any one.
10. a data transmission system, is characterized in that, comprises computer and audio amplifier, and described computer comprises the A/D modular converter as described in claim 1 to 8 any one, and described audio amplifier comprises transmitter module and the receiver module as described in claim 1 to 8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789168.6U CN203661054U (en) | 2013-12-03 | 2013-12-03 | Data transmission circuit and data transmission system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320789168.6U CN203661054U (en) | 2013-12-03 | 2013-12-03 | Data transmission circuit and data transmission system |
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| CN203661054U true CN203661054U (en) | 2014-06-18 |
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| CN201320789168.6U Expired - Lifetime CN203661054U (en) | 2013-12-03 | 2013-12-03 | Data transmission circuit and data transmission system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329731A (en) * | 2017-07-18 | 2017-11-07 | 深圳暴风统帅科技有限公司 | A kind of I2S signal transmission systems |
| CN107506656A (en) * | 2017-08-21 | 2017-12-22 | 深圳市四季宏胜科技有限公司 | A kind of WIFI movable storage devices |
-
2013
- 2013-12-03 CN CN201320789168.6U patent/CN203661054U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329731A (en) * | 2017-07-18 | 2017-11-07 | 深圳暴风统帅科技有限公司 | A kind of I2S signal transmission systems |
| CN107506656A (en) * | 2017-08-21 | 2017-12-22 | 深圳市四季宏胜科技有限公司 | A kind of WIFI movable storage devices |
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Granted publication date: 20140618 |