CN202931474U - HDMI expansion interface and HDMI expansion device - Google Patents
HDMI expansion interface and HDMI expansion device Download PDFInfo
- Publication number
- CN202931474U CN202931474U CN 201220543773 CN201220543773U CN202931474U CN 202931474 U CN202931474 U CN 202931474U CN 201220543773 CN201220543773 CN 201220543773 CN 201220543773 U CN201220543773 U CN 201220543773U CN 202931474 U CN202931474 U CN 202931474U
- Authority
- CN
- China
- Prior art keywords
- pin
- hdmi
- interface
- expansion interface
- usb
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Power Sources (AREA)
Abstract
The utility model relates to a circuit interface, and provides an HDMI expansion interface and an HDMI expansion device. The HDMI expansion interface comprises a housing, and first, second......nineteenth pins disposed within the housing and conforming to a standard HDMI, wherein the pins contain a retaining pin and a grounding pin. The HDMI expansion interface comprises also includes a twentieth pin and a twenty-first pin, wherein the twentieth pin, the twenty-first pin, the retaining pin and the grounding pin form a USB expansion interface. The twentieth pin and the twenty-first pin are added to form the USB expansion interface together with the existing retaining pin and the grounding pin, thus the USB interface function is added on the basis of protecting the existing HDMI interface function, therefore the expansion function of the HDMI is increased; by using the HDMI device with the expansion function, the device has the expansion function and also externally connects with more devices, thus the HDMI expansion device is suitable for more different occasions.
Description
Technical field
The utility model relates to circuit interface, more particularly, relates to a kind of HDMI expansion interface and adopts the device of this HDMI expansion interface.
Background technology
As shown in Figure 1, existing HDMI(High Definition Multimedia Interface) interface, i.e. HDMI (High Definition Multimedia Interface), it includes 19 standard pin.This interface can only connect the HDMI interface equipment to be used, as high definition player.When wanting this interface to connect simultaneously the ancillary equipment of other a plurality of functions, such as main equipment is connected to display by this interface, wish simultaneously to access by this interface other USB device (as keyboard, mouse etc.), so that when this main equipment is controlled, existing 19 standard pin can't be implemented.
The utility model content
Technical problem to be solved in the utility model is to overcome the defective of prior art, and a kind of device that has the HDMI expansion interface of usb function and HDMI interface function and adopt this expansion interface is provided.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of HDMI expansion interface is provided, comprise shell and be located at the first pin, the second pin that meets standard HDMI in described shell ... the 19 pin, described the first pin, the second pin ... comprise one in the 19 pin and keep pin and a grounding pin, also comprise the 20 pin and the 21 pin, described the 20 pin, described the 21 pin, described reservation pin and described grounding pin form a USB expansion interface.
Particularly, described reservation pin is set to the anodal data pin of USB expansion interface; Described the 20 pin is set to the negative pole data pin of USB expansion interface; Described the 21 pin is set to the 5V power pins.
Perhaps, described the 20 pin is set to the anodal data pin of USB expansion interface; Described the 21 pin is set to the negative pole data pin of USB expansion interface; Described reservation pin is set to the 5V power pins.
Perhaps, described the 21 pin is set to the anodal data pin of USB expansion interface; Described reservation pin is set to the negative pole data pin of USB expansion interface; Described the 20 pin is set to the 5V power pins.
Particularly, described the first pin, the second pin ... the 19 pin arrangements becomes two row, and successively from top to bottom, then sequence from right to left, described the 20 pin is located at the left end of described the 19 pin, and described the 21 pin is located at the right-hand member of described the first pin.
The utility model also provides a kind of HDMI expanding unit, it is characterized in that: comprise at least one above-mentioned HDMI expansion interface, be connected with described HDMI expansion interface and described HDMI expansion interface can be converted to respectively at least one change-over circuit of HDMI interface or USB interface, and to the power supply apparatus of described HDMI expansion interface and described change-over circuit power supply.
In the utility model, form a USB expansion interface by newly-increased the 20 pin, the 21 pin and former reservation pin and grounding pin, like this, increased usb function on the basis of the original HDMI interface function of protection, thereby improved the expanded function of HDMI; Adopt the HDMI device of this expanded function, owing to having expanded function, also can be used for how different occasions by external more equipment.
Description of drawings
Fig. 1 is the schematic diagram of the existing HDMI interface that provides of the utility model;
Fig. 2 is the schematic diagram of the preferred embodiment of the HDMI expansion interface that provides of the utility model;
Fig. 3 is the block diagram of the HDMI expanding unit that provides of the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, 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 explaining the utility model, and be not used in restriction the utility model.
With reference to Fig. 2, the utility model provides a kind of HDMI expansion interface 100, comprise shell 110, be located at the first pin 1, the second pin 2 that meet standard HDMI in shell 110 ... the 19 pin 19, and be located at shell 110 interior the 20 pin 20 and the 21 pin 21.The first pin 1, the second pin 2 ... comprise one in the 19 pin 19 and keep pin and a grounding pin, the 20 pin 20, the 21 pin 21, described reservation pin and described grounding pin form a USB expansion interface.
In the HDMI of existing standard, the first pin 1, the second pin 2 ... the 19 pin 19 is arranged in two row, and successively from top to bottom, sequence from right to left again, like this, the 14 pin 14 is for keeping pin, and the 17 pin 17 is grounding pin, and newly-increased the 20 pin 20, the 21 pin 21 and the 14 pin 14 and the 17 pin 17 form a USB expansion interface.This USB expansion interface can be the public access mouth and also can be maternal interface, and on the function of this interface of expansion, original HDMI standard interface still can use.Certainly, can pin sequence and position be restricted yet, as long as possess the pin of reservation and grounding pin in the pin of reservation HDMI, it can be got final product with newly-increased the 20 pin 20, the 21 pin 21 expansions.
In the present embodiment, the 14 pin 14 is set to the anodal data pin (D+) of USB expansion interface; The 20 pin 20 is set to the negative pole data pin (D-) of USB expansion interface; The 21 pin 21 be set to the 5V power pins (+5V), like this, then be grounding pin in conjunction with original the 17 pin 17, namely realized usb function.
Certainly, the 20 pin 20 is set to the anodal data pin (D+) of USB expansion interface; The 21 pin 21 is set to the negative pole data pin (D-) of USB expansion interface; The 14 pin 14 be set to the 5V power pins (+5V).Perhaps, the 21 pin 21 is set to the anodal data pin (D+) of USB expansion interface; The 14 pin 14 is set to the negative pole data pin (D-) of USB expansion interface; The 20 pin 20 be set to the 5V power pins (+5V).Be namely, the 14 pin 14, the 20 pin 20 or the 21 pin 21, can be set to the anodal data pin (D+), negative pole data pin (D-) of USB expansion interface and 5 volts of power pins (+any one in 5V), as long as the setting of the 14 pin 14, the 20 pin 20 and the 21 pin 21 is different in twos, in conjunction with the 17 pin 17, namely can realize the function of USB interface so again.
By finding out in Fig. 2, as a preferred embodiment, in the present embodiment, the 20 pin is located at the left end of the 19 pin 19, and the 21 pin 21 is located at the right-hand member of the first pin.Need to prove, the 20 pin 20 and the 21 pin 21 also can be arranged on any position in shell 110, as long as it can realize usb function.
With reference to Fig. 3, the utility model also provides a kind of HDMI expanding unit 200, and it comprises above-mentioned HDMI expansion interface 100, the change-over circuit 210 that is connected with HDMI expansion interface 100 and power supply apparatus 220.Power supply apparatus 220 is connected with power pins (DC) in HDMI expansion interface 100, is used for to HDMI expansion interface 100 and change-over circuit 210 power supplies.Change-over circuit 210 can be converted to HDMI expansion interface 100 respectively HDMI interface 230 or USB interface 240.
Change-over circuit 210 is used for HDMI expansion interface 100 and expands to more interface use, thus convenient more external equipment access.As when expanding to the use of HDMI interface, the first pin 1 in HDMI expansion interface 100, the second pin 2 ... the 19 pin 19 is guided in the HDMI interface by logic conversion, make its function that possesses the HDMI interface, at this moment the first pin 1, the second pin 2 ... the 19 pin 19 can be used for connecting some high definition players, high-end watch-dog etc.; When expanding to the USB interface use, the 14 pin 14, the 20 pin 20, the 21 pin 21 and the 17 pin 17 of HDMI expansion interface 100 are guided in USB interface by logic conversion, make it possess the function of USB interface, at this moment USB interface is used for connecting ancillary equipment, as mouse, keyboard, MP4 etc.
In the present embodiment, HDMI expansion interface 100 is two or more, and change-over circuit 210 also can be two or more.Namely can comprise a plurality of HDMI expansion interfaces 100 on a HDMI expanding unit 200; Simultaneously, can change a plurality of HDMI interfaces 230 and USB interface 240 on change-over circuit 210; And a HDMI expansion interface 100 can be connected with a plurality of change-over circuits 210.Like this, HDMI expansion interface 100 can obtain more HDMI interface and USB interface, thereby can satisfy the needs of more occasions.
These are only preferred embodiment of the present utility model, not in order to limiting the utility model, all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (6)
1. HDMI expansion interface, comprise shell and be located at the first pin, the second pin that meets standard HDMI in described shell ... the 19 pin, described the first pin, the second pin ... comprise one in the 19 pin and keep pin and a grounding pin, it is characterized in that: also comprise the 20 pin and the 21 pin, described the 20 pin, described the 21 pin, described reservation pin and described grounding pin form a USB expansion interface.
2. HDMI expansion interface as claimed in claim 1, it is characterized in that: described reservation pin is set to the anodal data pin of USB expansion interface; Described the 20 pin is set to the negative pole data pin of USB expansion interface; Described the 21 pin is set to the 5V power pins.
3. HDMI expansion interface as claimed in claim 1, it is characterized in that: described the 20 pin is set to the anodal data pin of USB expansion interface; Described the 21 pin is set to the negative pole data pin of USB expansion interface; Described reservation pin is set to the 5V power pins.
4. HDMI expansion interface as claimed in claim 1, it is characterized in that: described the 21 pin is set to the anodal data pin of USB expansion interface; Described reservation pin is set to the negative pole data pin of USB expansion interface; Described the 20 pin is set to the 5V power pins.
5. as claim 2 or 3 or 4 described HDMI expansion interfaces, it is characterized in that: described the first pin, the second pin ... the 19 pin arrangements becomes two row, and successively from top to bottom, sequence from right to left again, described the 20 pin is located at the left end of described the 19 pin, and described the 21 pin is located at the right-hand member of described the first pin.
6. HDMI expanding unit, it is characterized in that: comprise at least one HDMI expansion interface as described in any one in claim 1 to 5, with as described in the HDMI expansion interface be connected and can with as described in the HDMI expansion interface be converted to respectively at least one change-over circuit of HDMI interface or USB interface, and to the power supply apparatus of described HDMI expansion interface and the power supply of described change-over circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220543773 CN202931474U (en) | 2012-10-23 | 2012-10-23 | HDMI expansion interface and HDMI expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220543773 CN202931474U (en) | 2012-10-23 | 2012-10-23 | HDMI expansion interface and HDMI expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202931474U true CN202931474U (en) | 2013-05-08 |
Family
ID=48221381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220543773 Expired - Fee Related CN202931474U (en) | 2012-10-23 | 2012-10-23 | HDMI expansion interface and HDMI expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202931474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113223441A (en) * | 2021-05-20 | 2021-08-06 | 青岛中科英泰商用系统股份有限公司 | Display expansion connection method and device |
-
2012
- 2012-10-23 CN CN 201220543773 patent/CN202931474U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113223441A (en) * | 2021-05-20 | 2021-08-06 | 青岛中科英泰商用系统股份有限公司 | Display expansion connection method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWM485441U (en) | USB server | |
| CN105335311A (en) | Portable electronic device and power management method | |
| US8897030B2 (en) | Expansion apparatus with serial advanced technology attachment dual in-line memory module device | |
| EP2849292A1 (en) | Electronic device assembly | |
| CN205265858U (en) | TV set of configuration USB interface adapter | |
| CN202931474U (en) | HDMI expansion interface and HDMI expansion device | |
| CN207516993U (en) | A kind of Interface Expanding circuit and device | |
| US9478190B2 (en) | Video card and computer | |
| CN204009915U (en) | A kind of multimedia display and vein identification device | |
| CN206441144U (en) | A kind of multi-functional display card system | |
| CN102904096A (en) | Connector structure and signal adapter using same | |
| CN217113148U (en) | Side extension computer based on calculation module | |
| CN205507639U (en) | Notebook computer of external display card expanding unit | |
| CN202159872U (en) | Conversion device of mini-station interface | |
| CN203858551U (en) | Insertion connection structure sharing two types of interfaces, main board, case and electronic equipment of case | |
| CN201877126U (en) | U disk with functions of USB (universal serial bus)-HUB | |
| CN202737168U (en) | Connector structure and signal adaptor using same | |
| CN207123835U (en) | Versatile interface integrated box | |
| CN108448351A (en) | A kind of VR active type cables | |
| CN206022793U (en) | A kind of two-in-one interfaces transducer | |
| CN205303886U (en) | Fine definition multi -media interface converter | |
| CN220210498U (en) | HDMI one-in-eight-out distributor | |
| CN202906167U (en) | Patchplug for DP interface and Mini DP interface | |
| CN204481280U (en) | The novel highly dense Connector of a kind of integrated VGA+USB | |
| CN204496491U (en) | Can the interfacing equipment of termination continuously |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20151023 |
|
| EXPY | Termination of patent right or utility model |