CN205142481U - Multichannel audio frequency hybrid processing ware - Google Patents
Multichannel audio frequency hybrid processing ware Download PDFInfo
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- CN205142481U CN205142481U CN201520829051.5U CN201520829051U CN205142481U CN 205142481 U CN205142481 U CN 205142481U CN 201520829051 U CN201520829051 U CN 201520829051U CN 205142481 U CN205142481 U CN 205142481U
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Abstract
The embodiment of the utility model provides an ordinary stereo signal or the dolby audio signal that input interface outlet through optical signal decode into I2S digit audio signal through optical signal decoder module, and process surround processing module carries out the surround processing again, then process audio coding decoder module converts virtual dolby audio signal to or interface outlet is exported from headphone output microphone input interface with recording to ordinary stereo signal, and decode into 8 data signal through the ordinary stereo signal or the dolby audio signal of USB inputoutput interface output through USB encoding and decoding module, convert I2S digital audio signal to through central control module again, it handles to carry out the surround through surround processing module all the way, another way is direct to convert ordinary stereo headphone output microphone input interface of follow and recording output interface outlet to through audio frequency encoding and decoding module, reached and carried out hybrid processing's effect simultaneously to the multichannel audio frequency.
Description
Technical field
The utility model relates to audio process, particularly relates to multichannel voice frequency hybrid processor.
Background technology
Now, along with science and technology and socioeconomic development, various e-sports and electronic game prevailing, virtual entertainment has occupied most in people's life gradually, e-sports develop rapidly, professional electronics game station gets more and more, and the audio frequency of e-sports and voice transfer processing mode also form the standard of industry-specific uniqueness.
Therefore, in electronic game station, there will be the audio frequency that multichannel is different, and prior art sound intermediate frequency processor often can only process the constrained input of a road audio frequency, the process multichannel voice frequency simultaneously mixed cannot be accomplished.
Utility model content
The utility model object is to provide multichannel voice frequency hybrid processor, is intended to the problem solving the process multichannel voice frequency that cannot simultaneously mix in electronic game station.
The utility model provides multichannel voice frequency hybrid processor, comprises audio input unit, audio treatment unit and audio output unit, and described audio treatment unit comprises:
Connect fiber-optic signal input interface, the ordinary stereo acoustical signal export described fiber-optic signal input interface or Dolby Audio signal decoding become the fiber-optic signal decoder module of I2S digital audio and video signals;
Connect USB input/output interface, the ordinary stereo acoustical signal export described USB input/output interface or Dolby Audio signal are converted to the USB coding and decoding module of 8 position digital signals;
Simultaneously with described fiber-optic signal decoder module and USB coding and decoding model calling, described 8 position digital signals are converted to the central control module of I2S digital audio and video signals;
Be connected with described fiber-optic signal decoder module and central control module simultaneously, the I2S digital audio and video signals after the I2S digital audio and video signals after described fiber-optic signal decoding module decodes and the conversion of described central control module carried out the surround sound processing module of surround sound process;
Be connected with described central control module and surround sound processing module simultaneously, and lug machine exports the audio encoding and decoding module of microphone input interface and recording output interface, I2S digital audio and video signals after the process of described surround sound processing module is converted to virtual Doby sound signal or ordinary stereo acoustical signal and export microphone input interface from earphone and recording output interface exports, or export microphone input interface from earphone after the I2S digital audio and video signals after described central control module conversion is directly changed into ordinary stereo acoustical signal and recording output interface exports.
In said structure, described fiber-optic signal decoder module adopts a fiber-optic signal decoding chip U1, and described fiber-optic signal decoding chip U1 comprises:
Fiber-optic signal end SPDIF and output OUT;
Described fiber-optic signal end SPDIF connects described fiber-optic signal input interface, and described output OUT connects the public connecting end of described surround sound processing module and described central control module.
In said structure, described surround sound processing module adopts a surround sound process chip U2, and described surround sound process chip U2 comprises:
Branch end TR and transmission ends TX;
The branch end TR of described surround sound process chip U2 is divided into two branch roads, connects the output OUT of described fiber-optic signal decoding chip U1 and described central control module respectively, and the transmission ends TX of described surround sound process chip U2 connects described audio encoding and decoding module.
In said structure, described USB coding and decoding module adopts a USB coding and decoding chip U4, and described USB coding and decoding chip U4 comprises:
Usb signal end Micro_USB and transmitting terminal TX;
Described usb signal end Micro_USB connects USB input/output interface, and the transmitting terminal TX of described USB coding and decoding chip U4 connects described central control module.
In said structure, described audio encoding and decoding module adopts an audio encoding and decoding chip U5, and described audio encoding and decoding chip U5 comprises:
Receiving terminal RX, main link VDD, recorded audio signals end STREAM, handset audio signal end AUX and earphone are held concurrently microphone signal end HEADPHONE;
Described receiving terminal RX meets the transmission ends TX of described surround sound process chip U2, described main link VDD connects described central control module, described recorded audio signals end STREAM connects recording output interface, described handset audio signal end AUX takes over machine audio input output interface, and described earphone microphone signal end HEADPHONE lug machine of holding concurrently exports microphone input interface.
In said structure, central control module adopts one to control master chip U3, and described control master chip U3 comprises:
First control end CTRL01, the second control end CTRL02, the 3rd control end CTRL03, the first voice dialogue end DA_CH1 and the second voice dialogue end DA_CH2;
Described first control end CTRL01 meets the output OUT of described fiber-optic signal decoding chip U1 and the branch end TR of described surround sound process chip U2, described second control end CTRL02 meets the transmitting terminal TX of described USB coding and decoding chip U4, described 3rd control end CTRL03 meets the main link VDD of described audio encoding and decoding chip U5, and described first voice dialogue end DA_CH1 and the second voice dialogue end DA_CH2 connects two voice dialogue input/output interfaces respectively.
Specificly in the utility model embodiment audio treatment unit be provided with fiber-optic signal decoder module, surround sound processing module, central control module, USB coding and decoding module and audio encoding and decoding module, the ordinary stereo acoustical signal exported by fiber-optic signal input interface or Dolby Audio signal become I2S digital audio and video signals through fiber-optic signal decoding module decodes, surround sound process is carried out again through surround sound processing module, then virtual Doby sound signal or ordinary stereo acoustical signal is become to export microphone input interface and the output of recording output interface from earphone through audio encoding and decoding module converts, and the ordinary stereo acoustical signal to be exported by USB input/output interface or Dolby Audio signal are decoded into 8 position digital signals through USB coding and decoding module, I2S digital audio and video signals is converted to again through central control module, surround sound process is carried out through surround sound processing module in one tunnel, then virtual Doby sound signal or ordinary stereo acoustical signal is become to export microphone input interface and the output of recording output interface from earphone through audio encoding and decoding module converts, another road directly becomes common through audio encoding and decoding module converts and stereoly exports microphone input interface from earphone and recording output interface exports, reach the effect of multichannel voice frequency being carried out to mixed processing simultaneously.
Accompanying drawing explanation
Fig. 1 is the modular unit schematic diagram of the utility model multichannel voice frequency hybrid processor, comprises audio treatment unit.
Fig. 2 is the modular structure schematic diagram of the audio treatment unit of Fig. 1.
Fig. 3 is the internal circuit configuration schematic diagram of the utility model multichannel voice frequency hybrid processor.
Embodiment
In order to make the technical problems to be solved in the utility model, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 shows the modular unit of the multichannel voice frequency hybrid processor that the utility model embodiment provides, and for convenience of explanation, illustrate only the part relevant to the utility model embodiment.
The utility model one embodiment multichannel voice frequency hybrid processor 10 comprises:
Audio input unit 101, audio treatment unit 102 and audio output unit 103;
Described audio treatment unit 102 was both connected with described audio input unit 101, was connected again with described audio output unit 103.Described audio input unit 101 inputs for the different audio frequency of multichannel, the input of the music such as such as USB, optical fiber, mobile phone, microphone and voice signal.Described audio treatment unit 102 is that the audio frequency different to multichannel processes, such as the Doby audio that described audio input unit 101 inputs converted to virtual Doby audio or convert common stereo audio to, or converting the normal stereo audio that described audio input unit 101 inputs to virtual Doby audio.Therefore, the audio signal after described audio treatment unit 102 processes and virtual Doby audio or common stereo audio are all exported by described audio output unit 103.
Fig. 2 shows the modular structure of the audio treatment unit of the multichannel voice frequency hybrid processor that the utility model embodiment provides, and for convenience of explanation, illustrate only the part relevant to the utility model embodiment.
Described audio treatment unit 102 comprises:
Connect fiber-optic signal input interface, the ordinary stereo acoustical signal export described fiber-optic signal input interface or Dolby Audio signal decoding become the fiber-optic signal decoder module 1021 of I2S digital audio and video signals;
Connect USB input/output interface, the ordinary stereo acoustical signal export described USB input/output interface or Dolby Audio signal are converted to the USB coding and decoding module 1024 of 8 position digital signals;
Be connected with described fiber-optic signal decoder module 1021 and USB coding and decoding module 1024 simultaneously, described 8 position digital signals converted to the central control module 1023 of I2S digital audio and video signals;
Be connected with described fiber-optic signal decoder module 1021 and central control module 1023, the I2S digital audio and video signals after described fiber-optic signal decoder module 1021 decoded I2S digital audio and video signals and described central control module 1023 being changed carries out the surround sound processing module 1022 of surround sound process simultaneously;
Be connected with described central control module 1023 and surround sound processing module 1022 simultaneously, and lug machine exports microphone input interface and recording output interface, I2S digital audio and video signals after described surround sound processing module 1022 being processed converts virtual Doby sound signal to or ordinary stereo acoustical signal exports microphone input interface from earphone and recording output interface exports, and the audio encoding and decoding module 1025 of microphone input interface and the output of recording output interface is exported after the I2S digital audio and video signals after being changed by described central control module 1023 converts ordinary stereo acoustical signal to from earphone.
Fig. 3 shows the internal circuit configuration of the audio treatment unit of the multichannel voice frequency hybrid processor that the utility model embodiment provides, and for convenience of explanation, illustrate only the part relevant to the utility model embodiment.
Described audio input unit 101 and described audio output unit 103 comprise:
Seven input/output interfaces, are respectively fiber-optic signal input interface, recording output interface, usb signal input/output interface, handset audio input/output interface, the double microphone input interface of earphone output and two voice dialogue input/output interfaces;
Described usb signal input/output interface, described handset audio input/output interface, described earphone export double microphone input interface and described two voice dialogue input/output interfaces all both may be used for audio signal input, also can be used for audio signal and exports.
As the utility model one embodiment, described fiber-optic signal decoder module adopts a fiber-optic signal decoding chip U1, and described fiber-optic signal decoding chip U1 comprises:
Fiber-optic signal end SPDIF and output OUT;
Described fiber-optic signal end SPDIF connects fiber-optic signal input interface, and described output OUT connects the public connecting end of described surround sound processing module and described central control module.
Described fiber-optic signal decoding chip U1 adopts SPDIFDecode circuit chip, and chip model does not limit, as long as can reach required function.
As the utility model one embodiment, described surround sound processing module adopts a surround sound process chip U2, and described surround sound process chip U2 comprises:
Branch end TR and transmission ends TX;
The branch end TR of described surround sound process chip U2 is divided into two branch roads, connects the output OUT of described fiber-optic signal decoding chip U1 and described central control module respectively, and the transmission ends TX of described surround sound process chip U2 connects described audio encoding and decoding module.
Described surround sound process chip U2 adopts DSP circuit chip, and chip model does not limit, as long as can reach required function.
As the utility model one embodiment, described USB coding and decoding module adopts a USB coding and decoding chip U4, and described USB coding and decoding chip U4 comprises:
Usb signal end Micro_USB and transmitting terminal TX;
Described usb signal end Micro_USB connects USB input/output interface, and the transmitting terminal TX of described USB coding and decoding chip U4 connects described central control module.
Described USB coding and decoding chip U4 adopts USBDecode circuit chip, and chip model does not limit, as long as can reach required function.
As the utility model one embodiment, described audio encoding and decoding module adopts an audio encoding and decoding chip U5, and described audio encoding and decoding chip U5 comprises:
Receiving terminal RX, main link VDD, recorded audio signals end STREAM, handset audio signal end AUX and earphone are held concurrently microphone signal end HEADPHONE;
Described receiving terminal RX meets the transmission ends TX of described surround sound process chip U2, described main link VDD connects described central control module, described recorded audio signals end STREAM connects recording output interface, described handset audio signal end AUX takes over machine audio input output interface, and described earphone microphone signal end HEADPHONE lug machine of holding concurrently exports microphone input interface.
Described audio encoding and decoding chip U5 adopts model to be the circuit chip of CODECWM8998, and chip model does not limit, as long as can reach required function.
As the utility model one embodiment, central control module adopts one to control master chip U3, and described control master chip U3 comprises:
First control end CTRL01, the second control end CTRL02, the 3rd control end CTRL03, the first voice dialogue end DA_CH1 and the second voice dialogue end DA_CH2;
Described first control end CTRL01 meets the output OUT of described fiber-optic signal decoding chip U1 and the branch end TR of described surround sound process chip U2, described second control end CTRL02 meets the transmitting terminal TX of described USB coding and decoding chip U4, described 3rd control end CTRL03 meets the main link VDD of described audio encoding and decoding chip U5, and described first voice dialogue end DA_CH1 and the second voice dialogue end DA_CH2 connects two voice dialogue input/output interfaces respectively.
Described control master chip U3 adopts MCUWithminiDSP circuit chip, and chip model does not limit, as long as can reach required function.
The utility model one embodiment multichannel voice frequency hybrid processor 10 mainly adopts the forms such as I2S audio digital signals, USB differential digital signal, 8 position digital signals and analog signal to transmit, its operation principle and transmission path as follows:
Optical fiber audio signal (adopting ordinary stereo acoustical signal or Dolby Audio signal) is after the input of fiber-optic signal input interface, after fiber-optic signal decoding chip U1 is decoded into I2S digital audio and video signals, be transferred to surround sound process chip U2 process again, surround sound process chip U2 again by through around process after I2S signal be directly transferred to audio encoding and decoding chip U5, audio encoding and decoding chip U5 I2S signal is converted to virtual Dolby Audio signal again or common stereophonic signal sends headset output interface and recording output interface more respectively to, thus the input completing ordinary stereo acoustical signal or Dolby Audio signal converts virtual Dolby Audio signal or the output of ordinary stereo acoustical signal to.
USB differential signal (adopting ordinary stereo acoustical signal or Dolby Audio signal) is after the input of usb signal input/output interface, after USB coding and decoding chip U4 process, biography changes 8 position digital signals (D0-D7) into and is transferred to control master chip U3, controls master chip U3 and can select to transmit with game sound card (sample rate 48K) transmission or term speech card (sample rate 44.1K).When choice for use game sound card transmission, control master chip U3 and can send I2S signal to audio encoding and decoding chip U5 again after the process of surround sound process chip, virtual Doby sound signal after conversion or normal stereo one tunnel are then transferred to headset output interface by audio encoding and decoding chip U5, and another road is transferred to recording output interface; And when choice for use voice sound card transmits, I2S (USB_VOICE) signal is directly transferred to audio encoding and decoding chip U5 and decodes by control master chip U3, and no longer by surround sound process chip U2 process, like this, normal stereo sound signal Hui Fen mono-tunnel after conversion is transferred to headset output interface, another road is transferred to recording output interface, thus the input also achieving ordinary stereo acoustical signal or Dolby Audio signal converts virtual Dolby Audio signal or the output of ordinary stereo acoustical signal to.
Mobile phone music signal from handset audio input/output interface input, after audio encoding and decoding chip U5 is converted to ordinary stereo acoustical signal, more direct by normal stereo Signal transmissions to headset output interface.Equally, ear microphone signal is also through after audio encoding and decoding chip U5 is converted to ordinary stereo acoustical signal, by normal stereo Signal transmissions to headset output interface, thus achieve mobile phone music signal or ear microphone signal and exported with common stereo audio equally by the input of common stereo audio.
Microphone voice signal is after audio encoding and decoding chip U5 converts I2S signal to, be transferred to again and control master chip U3 and USB coding and decoding chip U4 process, then can choice for use game sound card or voice sound card by differential signal transmission to USB input/output interface.Wherein, the voice signal after controlling master chip U3 process divides a road to export from recording output interface, and microphone signal is processed into audio digital signals Hou Jiang mono-road through control master chip U3 and exports to two voice dialogue input/output interfaces simultaneously.
Local interconnect audio digital signals inputs from any one voice dialogue input/output interface, after controlling master chip U3 and being processed into I2S signal, one tunnel is transferred to audio encoding and decoding chip U5 and converts analog signal to from headset output interface and the output of recording output interface, and another road is transferred to another voice dialogue input/output interface and exports.
And, if also can be connected by its voice dialogue input/output interface between two or more multichannel voice frequency hybrid processors 10, thus realize the interaction call between the local teammate of game player.
In sum, the utility model embodiment is specific in audio treatment unit is provided with fiber-optic signal decoder module, surround sound processing module, central control module, USB coding and decoding module and audio encoding and decoding module, the ordinary stereo acoustical signal exported by fiber-optic signal input interface or Dolby Audio signal become I2S digital audio and video signals through fiber-optic signal decoding module decodes, surround sound process is carried out again through surround sound processing module, then virtual Doby sound signal or ordinary stereo acoustical signal is become to export microphone input interface and the output of recording output interface from earphone through audio encoding and decoding module converts, and the ordinary stereo acoustical signal to be exported by USB input/output interface or Dolby Audio signal are decoded into 8 position digital signals through USB coding and decoding module, I2S digital audio and video signals is converted to again through central control module, surround sound process is carried out through surround sound processing module in one tunnel, then virtual Doby sound signal or ordinary stereo acoustical signal is become to export microphone input interface and the output of recording output interface from earphone through audio encoding and decoding module converts, another road directly becomes common through audio encoding and decoding module converts and stereoly exports microphone input interface from earphone and recording output interface exports, reach the effect of multichannel voice frequency being carried out to mixed processing simultaneously.Docked by the voice dialogue input/output interface of hybrid processor, the interaction call between two or more multichannel voice frequency hybrid processors can be realized.The utility model embodiment realizes simple, and not needing increases extra hardware, effectively can reduce costs, have stronger ease for use and practicality.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (6)
1. multichannel voice frequency hybrid processor, comprises audio input unit, audio treatment unit and audio output unit, it is characterized in that, described audio treatment unit comprises:
Connect fiber-optic signal input interface, the ordinary stereo acoustical signal export described fiber-optic signal input interface or Dolby Audio signal decoding become the fiber-optic signal decoder module of I2S digital audio and video signals;
Connect USB input/output interface, the ordinary stereo acoustical signal export described USB input/output interface or Dolby Audio signal are converted to the USB coding and decoding module of 8 position digital signals;
Simultaneously with described fiber-optic signal decoder module and USB coding and decoding model calling, described 8 position digital signals are converted to the central control module of I2S digital audio and video signals;
Be connected with described fiber-optic signal decoder module and central control module simultaneously, the I2S digital audio and video signals after the I2S digital audio and video signals after described fiber-optic signal decoding module decodes and the conversion of described central control module carried out the surround sound processing module of surround sound process;
Be connected with described central control module and surround sound processing module simultaneously, and lug machine exports the audio encoding and decoding module of microphone input interface and recording output interface, I2S digital audio and video signals after the process of described surround sound processing module is converted to virtual Doby sound signal or ordinary stereo acoustical signal and export microphone input interface from earphone and recording output interface exports, or export microphone input interface from earphone after the I2S digital audio and video signals after described central control module conversion is directly changed into ordinary stereo acoustical signal and recording output interface exports.
2. multichannel voice frequency hybrid processor as claimed in claim 1, it is characterized in that, described fiber-optic signal decoder module adopts a fiber-optic signal decoding chip U1, and described fiber-optic signal decoding chip U1 comprises:
Fiber-optic signal end SPDIF and output OUT;
Described fiber-optic signal end SPDIF connects described fiber-optic signal input interface, and described output OUT connects the public connecting end of described surround sound processing module and described central control module.
3. multichannel voice frequency hybrid processor as claimed in claim 2, it is characterized in that, described surround sound processing module adopts a surround sound process chip U2, and described surround sound process chip U2 comprises:
Branch end TR and transmission ends TX;
The branch end TR of described surround sound process chip U2 is divided into two branch roads, connects the output OUT of described fiber-optic signal decoding chip U1 and described central control module respectively, and the transmission ends TX of described surround sound process chip U2 connects described audio encoding and decoding module.
4. multichannel voice frequency hybrid processor as claimed in claim 3, it is characterized in that, described USB coding and decoding module adopts a USB coding and decoding chip U4, and described USB coding and decoding chip U4 comprises:
Usb signal end Micro_USB and transmitting terminal TX;
Described usb signal end Micro_USB connects USB input/output interface, and the transmitting terminal TX of described USB coding and decoding chip U4 connects described central control module.
5. multichannel voice frequency hybrid processor as claimed in claim 4, it is characterized in that, described audio encoding and decoding module adopts an audio encoding and decoding chip U5, and described audio encoding and decoding chip U5 comprises:
Receiving terminal RX, main link VDD, recorded audio signals end STREAM, handset audio signal end AUX and earphone are held concurrently microphone signal end HEADPHONE;
Described receiving terminal RX meets the transmission ends TX of described surround sound process chip U2, described main link VDD connects described central control module, described recorded audio signals end STREAM connects recording output interface, described handset audio signal end AUX takes over machine audio input output interface, and described earphone microphone signal end HEADPHONE lug machine of holding concurrently exports microphone input interface.
6. multichannel voice frequency hybrid processor as claimed in claim 5, is characterized in that, central control module adopts one to control master chip U3, and described control master chip U3 comprises:
First control end CTRL01, the second control end CTRL02, the 3rd control end CTRL03, the first voice dialogue end DA_CH1 and the second voice dialogue end DA_CH2;
Described first control end CTRL01 meets the output OUT of described fiber-optic signal decoding chip U1 and the branch end TR of described surround sound process chip U2, described second control end CTRL02 meets the transmitting terminal TX of described USB coding and decoding chip U4, described 3rd control end CTRL03 meets the main link VDD of described audio encoding and decoding chip U5, and described first voice dialogue end DA_CH1 and the second voice dialogue end DA_CH2 connects two voice dialogue input/output interfaces respectively.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107622772A (en) * | 2017-09-01 | 2018-01-23 | 深圳市微纳感知计算技术有限公司 | Multi-channel audio signal parallel acquisition method and apparatus |
| TWI646848B (en) * | 2017-05-08 | 2019-01-01 | 宏碁股份有限公司 | Game platform and audio processing method thereof |
| CN112203182A (en) * | 2020-09-30 | 2021-01-08 | 深圳市豪恩声学股份有限公司 | Control system and method for earphone and earphone |
| CN112435676A (en) * | 2020-11-10 | 2021-03-02 | 黄志健 | Audio processing system based on live broadcast |
| RU2822716C1 (en) * | 2023-12-28 | 2024-07-11 | Шэньчжэнь Сюнвэйцзя Технолоджи Девелопмент Ко., Лтд. | Game usb microphone with devices for outputting signals of two sound cards |
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2015
- 2015-10-23 CN CN201520829051.5U patent/CN205142481U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI646848B (en) * | 2017-05-08 | 2019-01-01 | 宏碁股份有限公司 | Game platform and audio processing method thereof |
| CN107622772A (en) * | 2017-09-01 | 2018-01-23 | 深圳市微纳感知计算技术有限公司 | Multi-channel audio signal parallel acquisition method and apparatus |
| CN112203182A (en) * | 2020-09-30 | 2021-01-08 | 深圳市豪恩声学股份有限公司 | Control system and method for earphone and earphone |
| CN112435676A (en) * | 2020-11-10 | 2021-03-02 | 黄志健 | Audio processing system based on live broadcast |
| RU2822716C1 (en) * | 2023-12-28 | 2024-07-11 | Шэньчжэнь Сюнвэйцзя Технолоджи Девелопмент Ко., Лтд. | Game usb microphone with devices for outputting signals of two sound cards |
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Address after: Longgang District of Shenzhen City, Guangdong province 518116 Ping Street Takahashi Industrial Park East Area Patentee after: SHENZHE GUANXU ELECTRONIC CO., LTD. Address before: Longgang District of Shenzhen City, Guangdong province 518116 Ping Street Takahashi Industrial Park East Area Patentee before: Shenzhen Grandsun Electronic Co., Ltd. |