CN203825621U - USB interface expanding device - Google Patents
USB interface expanding device Download PDFInfo
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- CN203825621U CN203825621U CN201420194247.7U CN201420194247U CN203825621U CN 203825621 U CN203825621 U CN 203825621U CN 201420194247 U CN201420194247 U CN 201420194247U CN 203825621 U CN203825621 U CN 203825621U
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- 238000004891 communication Methods 0.000 abstract description 4
- 101001128814 Pandinus imperator Pandinin-1 Proteins 0.000 description 6
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Abstract
The utility model discloses a USB interface expanding device, and belongs to the field of electronic equipment. The device is connected between master equipment and auxiliary equipment, and comprises a transmission wire and an expanding USB female port embedded into the auxiliary equipment, wherein one end of the transmission wire is connected with the main equipment, and the other end of the transmission wire is connected with the expanding USB female port of the auxiliary equipment, and is an expanding USB male port. The device disclosed by the invention not only can realize communications between the main equipment and the auxiliary equipment of USB interfaces in different types, but also can realize communications between the main equipment and the auxiliary equipment of the USB interfaces and audio interfaces, so that that the application of electronic equipment used in various application scenes is greatly facilitated.
Description
Technical field
The utility model belongs to electronic device field, relates in particular to a kind of USB interface expanding unit.
Background technology
USB (universal serial bus) (English: Universal Serial Bus, be called for short USB) be a kind of interfacing, along with popularizing of USB interface, a large amount of electronic equipments are provided with USB interface, as digital camera, scanner, printer, U-KEY, mobile phone, card reader etc.Along with the variation of electronic equipment kind, at present, on market, the type of widely used USB interface also has multiplely, and modal is exactly the A type mouth of using on computer, and there are 4 lines the inside, and pegging graft according to whom, who is divided into male and female interface.General, on line be public mouthful, on equipment be female mouthful.And Type B interface uses on the equipment such as printer, scanner more.Mostly be Mini Type B mouth as what use on digital product.
Along with the development of Audiotechnica, adopt the electronic equipment of audio interface transmission data also more and more, as equipment such as mobile phone, MP3, PAD, but the interface type of various types of electronic equipments there are differences.Therefore,, in order to facilitate electronic equipment carrier to be connected communication with the main equipment of various interface type anywhere or anytime, provide the interface arrangement that a kind of extendability is strong to become urgent problem.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of USB interface expanding unit.For realizing communicating by letter between the electronic equipment of Universal USB interface and the electronic equipment of earphone interface or other expanding USB interface types.
The technological means that the utility model adopts is: a kind of USB interface expanding unit, be connected to main equipment and between equipment, comprise: transmission line and be embedded in female mouthful of described expansion USB from equipment, one end of described transmission line is connected with described main equipment, the other end of described transmission line is connected with female mouthful of described expansion USB from equipment, and the other end of described transmission line is public mouthful of expansion USB.
One end of described transmission line can be public mouthful of Earphone joint and/or general 4 line USB, the female mouth of described expansion USB from equipment comprise power lead pin, D+ pin, D-pin, wire pin.
Preferably, one end of described transmission line is Earphone joint, the public mouth of expansion USB of the other end of described transmission line comprises 6 pins, be respectively power lead pin, L channel pin, R channel pin, ID pin, ground wire pin and Mike's pin, L channel pin on the public mouth of expansion USB of the other end of described transmission line, R channel pin, ground wire pin is connected with the corresponding function pin of described Earphone joint with Mike's pin, the female mouth of described expansion USB from equipment comprises 6 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, ground wire pin and an extended pin.
Preferably, one end of described transmission line is public mouthful of general 4 line USB, the public mouth of expansion USB of the other end of described transmission line comprises 6 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, ground wire pin and an extended pin, power lead pin on the public mouth of expansion USB of the other end of described transmission line, D+ pin, D-pin is connected with the corresponding function pin of public mouthful of described general 4 line USB with ground wire pin, the female mouth of described expansion USB from equipment comprises 6 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, ground wire pin and an extended pin.
Preferably, one end of described transmission line is Earphone joint and the public mouth of general 4 line USB, the public mouth of expansion USB of the other end of described transmission line comprises 7 pins, be respectively power lead pin, L channel pin, D-pin, D+ pin, Mike's pin, the first ground wire pin and the second ground wire pin, L channel pin on the public mouth of expansion USB of the other end of described transmission line, the first ground wire pin is connected with the corresponding function pin of described Earphone joint with Mike's pin, described power lead pin, D+ pin, D-pin is connected with the corresponding function pin of public mouthful of described general 4 line USB with the second ground wire pin, the female mouth of described expansion USB from equipment comprises 7 pins, be respectively power lead pin, L channel pin, D-pin, D+ pin, Mike's pin, the first ground wire pin and the second ground wire pin.
Preferably, one end of described transmission line is Earphone joint and the public mouth of general 4 line USB, the public mouth of expansion USB of the other end of described transmission line comprises 8 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, L channel pin, R channel pin, ground wire pin and Mike's pin, L channel pin on the public mouth of expansion USB of the other end of described transmission line, R channel pin, ground wire pin is connected with the corresponding function pin of described Earphone joint with Mike's pin, described power lead pin, D+ pin, D-pin is connected with the corresponding function pin of public mouthful of described general 4 line USB with ground wire pin, the female mouth of described expansion USB from equipment comprises 8 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, ground wire pin and three extended pins.
Preferably, one end of described transmission line is Earphone joint and the public mouth of general 4 line USB, the public mouth of expansion USB of the other end of described transmission line comprises 8 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, L channel pin, R channel pin, ground wire pin and Mike's pin, L channel pin on the public mouth of expansion USB of the other end of described transmission line, R channel pin, ground wire pin is connected with the corresponding function pin of described Earphone joint with Mike's pin, described power lead pin, D+ pin, D-pin is connected with the corresponding function pin of public mouthful of described general 4 line USB with ground wire pin, the female mouth of described USB from equipment comprises 10 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, ground wire pin and five extended pins.
The public mouth of public mouthful of employing A type USB interface of above-mentioned general 4 line USB, male mouthful of described expansion USB and described shape and the consistent size of expanding the shape of the female mouth of USB and male mouthful of female mouth of size and miniUSB interface or microUSB interface.
The beneficial effect that adopts above-mentioned technological means to reach is: the USB interface expanding unit the utility model proposes by use, the master-slave equipment that not only can realize dissimilar USB interface communicates, and can realize the communication between USB interface and the master-slave equipment of audio interface, greatly facilitate the use of electronic equipment under various application scenarioss.
Brief description of the drawings
Fig. 1 is a kind of USB interface expanding unit use scenes schematic diagram that the utility model provides;
Fig. 2 is a kind of USB interface expanding unit structural drawing that embodiment 1 provides;
Fig. 3 is a kind of USB interface expanding unit structural drawing that embodiment 2 provides;
Fig. 4 is a kind of USB interface expanding unit structural drawing that embodiment 3 provides;
Fig. 5 is a kind of USB interface expanding unit structural drawing that embodiment 4 provides;
Fig. 6 is a kind of USB interface expanding unit structural drawing that embodiment 5 provides.
Wherein, transmission line 1, from equipment 2, one end 10 of transmission line, the other end 11 of transmission line, female mouthful 20 of the expansion USB from equipment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is further explained.Should be emphasized that, following explanation is only exemplary, instead of in order to limit scope of the present utility model and application thereof.
A kind of USB interface expanding unit the utility model proposes, be connected to main equipment and between equipment, as shown in Figure 1, comprise: transmission line 1 and the female mouth 20 of expansion USB being embedded in from equipment 2, one end 10 of described transmission line is connected with described main equipment, the other end 11 of described transmission line is connected for female mouthful 20 with described expansion USB from equipment, and the other end 11 of described transmission line is public mouthful of expansion USB, and described expansion USB from equipment 2 mates with male mouthful of described expansion USB for female mouthful 20.One end 10 of described transmission line is public mouthful of Earphone joint and/or general 4 line USB, described expansion USB from equipment 2 comprise for female mouthful 20 power lead pin, D+ pin, D-pin, wire pin.Described expansion USB from equipment 2 can also comprise at least one extended pin for female mouthful 20.
When one end of described transmission line is the public mouth of general 4 line USB, the male mouth of the A type USB interface that preferably employing is mated with female mouth of the USB interface of PC, the shape and size size of the public mouth of expansion USB of the other end of described transmission line is preferably designed for consistent with public mouthful of the USB of existing miniUSB interface or microUSB interface type, designs like this versatility good.What described main equipment was conventional is PC, described from equipment conventional be the various external equipments of communicating by letter with PC, as U-Key etc.The other end 11 of described transmission line expands the line order of each functional pin of public mouthful of USB can arbitrary arrangement, and the line order of each functional pin that described expansion USB from equipment 2 is female mouthful 20 also can arbitrary arrangement.
Embodiment 1
A kind of USB interface expanding unit that the present embodiment provides, as shown in Figure 2, comprise: transmission line 1 and the female mouth 20 of expansion USB being embedded in from equipment 2, one end 10 of described transmission line is connected with described main equipment, the other end 11 of described transmission line is connected for female mouthful 20 with described expansion USB from equipment, and the other end 11 of described transmission line is public mouthful of expansion USB.
Concrete, one end 10 of described transmission line is Earphone joint, the public mouth of expansion USB of the other end 11 of described transmission line comprises 6 pins, being respectively power lead pin is pin 1(VCC), L channel pin is pin 2(LEFT), R channel pin is pin 3(RIGHT), ID pin is pin 4, ground wire pin be pin 5(GND) and Mike's pin be pin 6(MIC), L channel pin on the public mouth of expansion USB of the other end 11 of described transmission line, R channel pin, corresponding function pin (the LEFT of ground wire pin and Mike's pin and described Earphone joint, RIGHT, GND, MIC) connect, described power lead pin is pin 1(VCC) and ID pin be 4 free time of pin, the female mouth of described expansion USB from equipment comprises 6 pins, being respectively power lead pin is pin 1(VCC), D-pin is pin 2, D+ pin is pin 3, ID pin is pin 4, ground wire pin be pin 5(GND) and an extended pin be pin 6(Pin1).
Preferably, in the present embodiment, male mouthful of described expansion USB is consistent with the design of the shape and size of female mouthful of expansion USB and the design of male mouthful female mouthful of existing miniUSB interface or microUSB interface.The line order of each functional pin that male mouthful of described expansion USB and described expansion USB are female mouthful is that corresponding pin 1 to pin 6 can arbitrary arrangement.
Embodiment 2
A kind of USB interface expanding unit that the present embodiment provides, as shown in Figure 3, comprise: transmission line 1 and the female mouth 20 of expansion USB being embedded in from equipment 2, one end 10 of described transmission line is connected with described main equipment, the other end 11 of described transmission line is connected for female mouthful 20 with described expansion USB from equipment, and the other end 11 of described transmission line is public mouthful of expansion USB.
Concrete, one end 10 of described transmission line is public mouthful of general 4 line USB, the public mouth of expansion USB of the other end 11 of described transmission line comprises 6 pins, being respectively power lead pin is pin 1(VCC), D-pin is pin 2, D+ pin is pin 3, ID pin is pin 4, ground wire pin be pin 5(GND) and an extended pin be pin 6(Pin1), power lead pin on the public mouth of expansion USB of the other end 11 of described transmission line, D+ pin, corresponding function pin (the VCC that D-pin and ground wire pin and described 4 line USB are public mouthful, D+, D-, GND) connect, described ID pin is that pin 4 and extended pin are pin 6(Pin1) free time, the female mouth of described expansion USB from equipment comprises 6 pins, being respectively power lead pin is pin 1(VCC), D-pin is pin 2, D+ pin is pin 3, ID pin is pin 4, ground wire pin be pin 5(GND) and an extended pin be pin 6(Pin1).
Preferably, in the present embodiment, public mouthful of described general 4 line USB adopt public mouthful of A type USB interface, and the design of the shape and size that male mouthful of described expansion USB and expansion USB are female mouthful is consistent with the design of the male mouth mother mouth of existing miniUSB interface or microUSB interface.The line order of each functional pin that male mouthful of described expansion USB and described expansion USB are female mouthful is that corresponding pin 1 to pin 6 can arbitrary arrangement.
Embodiment 3
A kind of USB interface expanding unit that the present embodiment provides, as shown in Figure 4, comprise: transmission line 1 and the female mouth 20 of expansion USB being embedded in from equipment 2, one end 10 of described transmission line is connected with described main equipment, the other end 11 of described transmission line is connected for female mouthful 20 with described expansion USB from equipment, and the other end 11 of described transmission line is public mouthful of expansion USB.Concrete, one end 10 of described transmission line is Earphone joint and the public mouth of general 4 line USB, public mouthful of the expansion USB of the other end of described transmission line comprises 7 pins, and being respectively power lead pin is pin 1(VCC), L channel pin is pin 2(LEFT), D-pin is that pin 3, D+ pin are that pin 4, Mike's pin are pin 5(MIC), the first ground wire pin is pin 6(AGND) and the second ground wire pin be pin 7(GND).L channel pin on the public mouth of expansion USB of the other end 11 of described transmission line, corresponding function pin (the LEFT of the first ground wire pin and Mike's pin and described Earphone joint, GND, MIC) connect, R channel pin (RIGHT) free time of described Earphone joint, described power lead pin, D+ pin, corresponding function pin (the VCC that D-pin and the second ground wire pin and described general 4 line USB are public mouthful, D+, D-, GND) connect, the female mouth of described expansion USB from equipment comprises 7 pins, be respectively power lead pin, L channel pin is pin 2(LEFT), D-pin is pin 3, D+ pin is pin 4, Mike's pin is pin 5(MIC), the first ground wire pin is pin 6(AGND) and the second ground wire pin be pin 7(GND).
Preferably, in the present embodiment, public mouthful of described general 4 line USB adopt public mouthful of A type USB interface, and the design of the shape and size that male mouthful of described expansion USB and expansion USB are female mouthful is consistent with the design of the male mouth mother mouth of existing miniUSB interface or microUSB interface.The line order of each functional pin that male mouthful of described expansion USB and described expansion USB are female mouthful is that corresponding pin 1 to pin 7 can arbitrary arrangement.
Embodiment 4
A kind of USB interface expanding unit that the present embodiment provides, as shown in Figure 5, comprise: transmission line 1 and the female mouth 20 of expansion USB being embedded in from equipment 2, one end 10 of described transmission line is connected with described main equipment, the other end 11 of described transmission line is connected for female mouthful 20 with described expansion USB from equipment, and the other end 11 of described transmission line is public mouthful of expansion USB.Concrete, one end 10 of described transmission line is Earphone joint and the public mouth of general 4 line USB, the public mouth of expansion USB of the other end 11 of described transmission line comprises 8 pins, being respectively power lead pin is pin 1(VCC), D-pin is pin 2, D+ pin is pin 3, ID pin is pin 4, ground wire pin is pin 5(GND), L channel pin is pin 6(LEFT), R channel pin is pin 7(RIGHT) and Mike's pin be pin 8(MIC), the L channel pin on public mouthful of the expansion USB of the other end 11 of described transmission line, R channel pin, corresponding function pin (the LEFT of ground wire pin and Mike's pin and described Earphone joint, RIGHT, GND, MIC) connect described power lead pin, D+ pin, corresponding function pin (the VCC that D-pin and ground wire pin and described general 4 line USB are public mouthful, D+, D-, GND) connect, described ID pin is 4 free time of pin, and the female mouth of described expansion USB from equipment comprises 8 pins, is respectively power lead pin, D+ pin, D-pin, ID pin is pin 4, ground wire pin be pin 5(GND) and three extended pins be pin 6(Pin1, Pin2, Pin3).
In the present embodiment, described general 4 line USB public affairs mouthful preferably adopt the public mouth of A type USB interface, and the design of the shape and size of male mouthful of described expansion USB and the female mouth of expansion USB and the design of male mouthful female mouthful of existing miniUSB interface or microUSB interface are consistent.The line order of each functional pin that male mouthful of described expansion USB and described expansion USB are female mouthful is that corresponding pin 1 to pin 8 can arbitrary arrangement.
Embodiment 5
A kind of USB interface expanding unit that the present embodiment provides, as shown in Figure 6, comprise: transmission line 1 and the female mouth 20 of expansion USB being embedded in from equipment 2, one end 10 of described transmission line is connected with described main equipment, the other end 11 of described transmission line is connected for female mouthful 20 with described expansion USB from equipment, and the other end 11 of described transmission line is public mouthful of expansion USB.Concrete, one end 10 of described transmission line is Earphone joint and the public mouth of general 4 line USB, the public mouth of expansion USB of the other end 11 of described transmission line comprises 8 pins, being respectively power lead pin is pin 1(VCC), D-pin is pin 2, D+ pin is pin 3, ID pin is pin 4, ground wire pin is pin 5(GND), L channel pin is pin 6(LEFT), R channel pin is pin 7(RIGHT) and Mike's pin be pin 8(MIC), the L channel pin on public mouthful of the expansion USB of the other end 11 of described transmission line, R channel pin, corresponding function pin (the LEFT of ground wire pin and Mike's pin and described Earphone joint, RIGHT, GND, MIC) connect described power lead pin, D+ pin, corresponding function pin (the VCC that D-pin and ground wire pin and described general 4 line USB are public mouthful, D+, D-, GND) connect, described ID pin is 4 free time of pin, and the female mouth of described expansion USB from equipment comprises 10 pins, is respectively power lead pin, D+ pin, D-pin, ID pin is pin 4, ground wire pin be pin 5(GND) and five extended pins be that pin 6 is to pin 10(Pin1, Pin2, Pin3, Pin4, Pin5).
Preferred in the present embodiment, public mouthful of described general 4 line USB adopt public mouthful of A type USB interface, and the design of the shape and size that male mouthful of described expansion USB and expansion USB are female mouthful is consistent with the design of the male mouth mother mouth of existing miniUSB interface or microUSB interface.The line order of each functional pin that described expansion USB is public mouthful is that corresponding pin 1 to pin 8 can arbitrary arrangement.The line order of each functional pin that described expansion USB is female mouthful is that corresponding pin 1 to pin 10 can arbitrary arrangement.
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.
Claims (8)
1. a USB interface expanding unit, be connected to main equipment and between equipment, it is characterized in that, comprise: transmission line and be embedded in female mouthful of described expansion USB from equipment, one end of described transmission line is connected with described main equipment, the other end of described transmission line is connected with female mouthful of described expansion USB from equipment, and the other end of described transmission line is public mouthful of expansion USB.
2. device as claimed in claim 1, is characterized in that, one end of described transmission line is public mouthful of Earphone joint and/or general 4 line USB, the female mouth of described expansion USB from equipment comprise power lead pin, D+ pin, D-pin, wire pin.
3. device as claimed in claim 1, it is characterized in that, one end of described transmission line is Earphone joint, the public mouth of expansion USB of the other end of described transmission line comprises 6 pins, be respectively power lead pin, L channel pin, R channel pin, ID pin, ground wire pin and Mike's pin, L channel pin on the public mouth of expansion USB of the other end of described transmission line, R channel pin, ground wire pin is connected with the corresponding function pin of described Earphone joint with Mike's pin, the female mouth of described expansion USB from equipment comprises 6 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, ground wire pin and an extended pin.
4. device as claimed in claim 1, it is characterized in that, one end of described transmission line is public mouthful of general 4 line USB, the public mouth of expansion USB of the other end of described transmission line comprises 6 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, ground wire pin and an extended pin, power lead pin on the public mouth of expansion USB of the other end of described transmission line, D+ pin, D-pin is connected with the corresponding function pin of public mouthful of described general 4 line USB with ground wire pin, the female mouth of described expansion USB from equipment comprises 6 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, ground wire pin and an extended pin.
5. device as claimed in claim 1, it is characterized in that, one end of described transmission line is Earphone joint and the public mouth of general 4 line USB, the public mouth of expansion USB of the other end of described transmission line comprises 7 pins, be respectively power lead pin, L channel pin, D-pin, D+ pin, Mike's pin, the first ground wire pin and the second ground wire pin, L channel pin on the public mouth of expansion USB of the other end of described transmission line, the first ground wire pin is connected with the corresponding function pin of described Earphone joint with Mike's pin, described power lead pin, D+ pin, D-pin is connected with the corresponding function pin of public mouthful of described general 4 line USB with the second ground wire pin, the female mouth of described expansion USB from equipment comprises 7 pins, be respectively power lead pin, L channel pin, D-pin, D+ pin, Mike's pin, the first ground wire pin and the second ground wire pin.
6. device as claimed in claim 1, it is characterized in that, one end of described transmission line is Earphone joint and the public mouth of general 4 line USB, the public mouth of expansion USB of the other end of described transmission line comprises 8 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, L channel pin, R channel pin, ground wire pin and Mike's pin, L channel pin on the public mouth of expansion USB of the other end of described transmission line, R channel pin, ground wire pin is connected with the corresponding function pin of described Earphone joint with Mike's pin, described power lead pin, D+ pin, D-pin is connected with the corresponding function pin of public mouthful of described general 4 line USB with ground wire pin, the female mouth of described expansion USB from equipment comprises 8 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, ground wire pin and three extended pins.
7. device as claimed in claim 1, it is characterized in that, one end of described transmission line is Earphone joint and the public mouth of general 4 line USB, the public mouth of expansion USB of the other end of described transmission line comprises 8 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, L channel pin, R channel pin, ground wire pin and Mike's pin, L channel pin on the public mouth of expansion USB of the other end of described transmission line, R channel pin, ground wire pin is connected with the corresponding function pin of described Earphone joint with Mike's pin, described power lead pin, D+ pin, D-pin is connected with the corresponding function pin of public mouthful of described general 4 line USB with ground wire pin, the female mouth of described USB from equipment comprises 10 pins, be respectively power lead pin, D+ pin, D-pin, ID pin, ground wire pin and five extended pins.
8. the device as described in claim 4 or 5 or 6 or 7, it is characterized in that, the public mouth of public mouthful of employing A type USB interface of described general 4 line USB, male mouthful of described expansion USB and described shape and the consistent size of expanding the shape of the female mouth of USB and male mouthful of female mouth of size and miniUSB interface or microUSB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194247.7U CN203825621U (en) | 2014-04-21 | 2014-04-21 | USB interface expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194247.7U CN203825621U (en) | 2014-04-21 | 2014-04-21 | USB interface expanding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203825621U true CN203825621U (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420194247.7U Expired - Lifetime CN203825621U (en) | 2014-04-21 | 2014-04-21 | USB interface expanding device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573957A (en) * | 2015-12-11 | 2016-05-11 | 中国电子科技集团公司第四十一研究所 | Measuring instrument programmable interface conversion system and method |
| CN106329254A (en) * | 2016-09-30 | 2017-01-11 | 宇龙计算机通信科技(深圳)有限公司 | USB (universal serial bus) interface female and male, terminal, and external device |
| CN106802699A (en) * | 2017-03-27 | 2017-06-06 | 杭州联络互动信息科技股份有限公司 | The extended protection shell and Interface Expanding method of a kind of mobile terminal |
| CN107783924A (en) * | 2017-12-04 | 2018-03-09 | 广东众易云网智能科技有限公司 | A kind of pluggable Multifunctional audio expansion interface using USB3.0TYPE A type interfaces |
| CN112579499A (en) * | 2019-09-30 | 2021-03-30 | 钰宝科技股份有限公司 | USB function expansion transmission device |
-
2014
- 2014-04-21 CN CN201420194247.7U patent/CN203825621U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573957A (en) * | 2015-12-11 | 2016-05-11 | 中国电子科技集团公司第四十一研究所 | Measuring instrument programmable interface conversion system and method |
| CN105573957B (en) * | 2015-12-11 | 2018-07-24 | 中国电子科技集团公司第四十一研究所 | A kind of measuring instrument programmable interface converting system and method |
| CN106329254A (en) * | 2016-09-30 | 2017-01-11 | 宇龙计算机通信科技(深圳)有限公司 | USB (universal serial bus) interface female and male, terminal, and external device |
| CN106802699A (en) * | 2017-03-27 | 2017-06-06 | 杭州联络互动信息科技股份有限公司 | The extended protection shell and Interface Expanding method of a kind of mobile terminal |
| CN107783924A (en) * | 2017-12-04 | 2018-03-09 | 广东众易云网智能科技有限公司 | A kind of pluggable Multifunctional audio expansion interface using USB3.0TYPE A type interfaces |
| CN112579499A (en) * | 2019-09-30 | 2021-03-30 | 钰宝科技股份有限公司 | USB function expansion transmission device |
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