CN208227284U - A kind of multi-functional external sound card - Google Patents
A kind of multi-functional external sound card Download PDFInfo
- Publication number
- CN208227284U CN208227284U CN201820171079.8U CN201820171079U CN208227284U CN 208227284 U CN208227284 U CN 208227284U CN 201820171079 U CN201820171079 U CN 201820171079U CN 208227284 U CN208227284 U CN 208227284U
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- interface
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- earphone
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- 230000003321 amplification Effects 0.000 claims abstract description 15
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000004891 communication Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of multi-functional external sound cards, including shell and circuit board, the shell is equipped with the first microphone interface, second microphone interface, handset port, first earphone base, second earphone base and USB interface, the microphone prime amplification module being sequentially electrically connected is provided on the circuit board, analog-to-digital conversion module, audio processing modules, DSP processing center module, microprocessor control centre, the audio processing modules are electrically connected with mixed signal amplification module and earphone interface automatic switching module, first earphone base and the second earphone base are electrically connected with mixed signal amplification module respectively, the handset port is electrically connected with earphone interface automatic switching module, first microphone interface and the second microphone interface are electrically connected with microphone prime amplification module.Audio data is digitally transmitted, and will not generate data distortion in transmission process；Meanwhile electromagnetic interference is not susceptible in transmission process and generates noise.
Description
Technical field
The utility model belongs to field of audio devices, and in particular to a kind of multi-functional external sound card.
Background technique
Existing outer handset audio collecting device acquires background audio data from mobile phone by earphone microphone interface, and is acquiring
To after external audio data, audio data is transferred to mobile phone by the earphone microphone interface by connecting mobile phone.Major defect is: audio
Data are transmitted in an analog fashion, generate data distortion because transmitting due to wire rod has loss in transmission process；Meanwhile in transmission process
In be easy by electromagnetic interference to be generated noise, electric signal will receive extraneous and in communication system in the transmission process along route
It is difficult to separate after the various noise jammings in portion, noise and signal mixing, so that communication quality declines.Route is longer, noise
Accumulation it is also more.
Utility model content
The purpose of this utility model is to provide a kind of multi-functional external sound cards, are passed in a digital manner using audio data
It is defeated, by the USB interface of smart machine such as mobile phone, background audio data are obtained from smart machine end；Collecting external audio
After data, then audio data is transferred to by smart machine by smart machine USB interface, while being also compatible with and smart machine is carried out
Control.
In order to achieve the above object, the major technique solution of the utility model is to provide a kind of multi-functional external sound card, packet
Shell and circuit board are included, the shell is equipped with the first microphone interface, the second microphone interface, handset port, the first earphone base, second
Earphone base and USB interface, be provided on the circuit board microphone prime amplification module being sequentially electrically connected, analog-to-digital conversion module,
Audio processing modules, DSP processing center module, microprocessor control centre, the audio processing modules are electrically connected with mixing letter
Number amplification module and earphone interface automatic switching module, first earphone base and the second earphone base amplify with mixed signal respectively
Module electrical connection, the handset port are electrically connected with earphone interface automatic switching module, first microphone interface and the second words
Cylinder interface is electrically connected with microphone prime amplification module.
The handset port is four core earphone bases.
First earphone base is for assisting output, and for second earphone base for monitoring, circuit board is fixed on the shell.
The USB interface includes lighting, Mini USB, type c, type A, Micro USB and type B.
First microphone interface and the second microphone interface are three core earphone bases.
The earphone interface of mobile phone or plate that the earphone interface automatic switching module can be connected with automatic identification is international
CTIA standard or country's OMTP standard.
Principle: utilizing usb interface bus standard, this equipment does the incoming and output of audio data as external usb audio,
Or as communication equipment/HID device (HID device: the equipment directly interacted with people, such as keyboard, mouse and joystick etc.)
Communication control is carried out with mobile phone；Equipment (calling this equipment in the following text) described in the utility model utilizes special USB chip or DSP number
Handle chip, define the USB Type of this equipment, with mobile phone after USB interface links, mobile phone terminal can according to this equipment from
The usb type of body setting and carry out the input or output of corresponding handshake communication and audio data.
This equipment is digitally transmitted using audio data, by connecting mobile phone USB interface, obtains background from mobile phone terminal
Audio data；Audio data is transferred to mobile phone after collecting external audio data, then through mobile phone USB interface, while
Compatibility controls external equipment.The DSP processing center module carries out the processing of audio or communication, and recorded audio signals pass through
For usb interface to mobile phone or other smart machine ends, mobile phone or other smart machine end audio decoders and control data are transferred to this
Equipment end.
The beneficial effects of the utility model are: audio data is digitally transmitted, data will not be generated in transmission process
Distortion；Meanwhile electromagnetic interference is not susceptible in transmission process and generates noise.
Detailed description of the invention
Fig. 1 is the schematic illustration of an embodiment of the present invention,
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained, all belongs to
In the range of the utility model protection.
As shown in Figure 1, a kind of multi-functional external sound card described in the present embodiment, including shell and circuit board, it is described outer
Shell is equipped with the first microphone interface, the second microphone interface, handset port, the first earphone base, the second earphone base and USB interface, described
It is provided with microphone prime amplification module, the analog-to-digital conversion module being sequentially electrically connected on circuit board and (is shown as AD conversion mould in Fig. 1
Block), audio processing modules, DSP processing center module, microprocessor control centre, the audio processing modules are electrically connected with mixed
Close signal amplification module and earphone interface automatic switching module, first earphone base and the second earphone base are respectively and mixed signal
Amplification module electrical connection, the handset port is electrically connected with earphone interface automatic switching module, first microphone interface and the
Two microphone interfaces are electrically connected with microphone prime amplification module.
The handset port is four core earphone bases.
First earphone base is for assisting output, and for second earphone base for monitoring, circuit board is fixed on the shell.
The USB interface includes lighting, Mini USB, type c, type A, Micro USB and type B.
First microphone interface and the second microphone interface are three core earphone bases.
The earphone interface of mobile phone or plate that the earphone interface automatic switching module can be connected with automatic identification is international
CTIA standard or country's OMTP standard.
Principle: utilizing usb interface bus standard, this equipment does the incoming and output of audio data as external usb audio,
Or as communication equipment/HID device (HID device: the equipment directly interacted with people, such as keyboard, mouse and joystick etc.)
Communication control is carried out with mobile phone；Equipment (calling this equipment in the following text) described in the utility model utilizes special USB chip or DSP number
Handle chip, define the USB Type of this equipment, with mobile phone after USB interface links, mobile phone terminal can according to this equipment from
The usb type of body setting and carry out the input or output of corresponding handshake communication and audio data.
This equipment is digitally transmitted using audio data, by connecting mobile phone USB interface, obtains background from mobile phone terminal
Audio data；Audio data is transferred to mobile phone after collecting external audio data, then through mobile phone USB interface, while
Compatibility controls external equipment.The DSP processing center module carries out the processing of audio or communication, and recorded audio signals pass through
For usb interface to mobile phone or other smart machine ends, mobile phone or other smart machine end audio decoders and control data are transferred to this
Equipment end.
The utility model audio data is digitally transmitted, and will not generate data distortion in transmission process；Meanwhile it passing
It is not susceptible to electromagnetic interference during defeated and generates noise.
The utility model is not limited to above-mentioned preferred forms, anyone can obtain under the enlightenment of the utility model
Other various forms of products, however, make any variation in its shape or structure, it is all that there is same as the present application or phase
Approximate technical solution, all falls within the protection scope of the utility model.
Claims (5)
1. a kind of multi-functional external sound card, including shell and circuit board, the shell is equipped with the first microphone interface, the second microphone connects
Mouth, handset port, the first earphone base, the second earphone base and USB interface, which is characterized in that be provided with sequentially on the circuit board
The microphone prime amplification module of electrical connection, analog-to-digital conversion module, audio processing modules, DSP processing center module, microprocessor control
Center processed, the audio processing modules are electrically connected with mixed signal amplification module and earphone interface automatic switching module, and described
One earphone base and the second earphone base are electrically connected with mixed signal amplification module respectively, and the handset port is cut automatically with earphone interface
Block electrical connection is changed the mold, first microphone interface and the second microphone interface are electrically connected with microphone prime amplification module.
2. multi-functional external sound card according to claim 1, it is characterised in that the handset port is four core earphone bases.
3. multi-functional external sound card according to claim 1, it is characterised in that the circuit board is fixed on the shell.
4. multi-functional external sound card according to claim 1, it is characterised in that the USB interface include lighting,
Mini USB, type c, type A, Micro USB and type B.
5. multi-functional external sound card according to claim 1, it is characterised in that first microphone interface and the second microphone
Interface is three core earphone bases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820171079.8U CN208227284U (en) | 2018-01-31 | 2018-01-31 | A kind of multi-functional external sound card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820171079.8U CN208227284U (en) | 2018-01-31 | 2018-01-31 | A kind of multi-functional external sound card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208227284U true CN208227284U (en) | 2018-12-11 |
Family
ID=64529829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820171079.8U Active CN208227284U (en) | 2018-01-31 | 2018-01-31 | A kind of multi-functional external sound card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208227284U (en) |
-
2018
- 2018-01-31 CN CN201820171079.8U patent/CN208227284U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191231 Address after: 518104 2F, building 1, No.2 Minfu Road, Shatou community, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Bawang Xiaozi Network Technology Co., Ltd. Address before: Xiajiang village hall 343000 villages in Ji'an city of Jiangxi Province, Futian Town of Qingyuan District No. 27 Patentee before: Pu Xueyan |