CN202103292U - Switching device - Google Patents
Switching device Download PDFInfo
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- CN202103292U CN202103292U CN2011201955651U CN201120195565U CN202103292U CN 202103292 U CN202103292 U CN 202103292U CN 2011201955651 U CN2011201955651 U CN 2011201955651U CN 201120195565 U CN201120195565 U CN 201120195565U CN 202103292 U CN202103292 U CN 202103292U
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Abstract
The utility model provides a switching device which comprises an input interface, a multifunctional switching circuit and a plurality of output interfaces, wherein the output interfaces are incompletely identical with the input interface, the multifunctional switching circuit is connected between the input interface and the output interfaces, signals output by the input interface are switched into signals that correspond to the required format of the output interfaces, thereby realizing the effective signal transmission between an input device and various application terminals. In this way, the switching device shares an input interface and can be connected with a plurality of application terminals synchronously by a plurality of output interfaces, the university of the data switching device is improved, and users can use the switching device more conveniently and faster.
Description
Technical field
The utility model relates to the application of electronic technology field, is specifically related to a kind of conversion equipment.
Background technology
The various data patchcords of generally using now mostly have an input and an output; Input is connected in host computer; Output is connected in application corresponding terminal (like projecting apparatus), to realize that host computer is to the data passes between the application corresponding terminal.
In order to improve the versatility of various data patchcords, generally when the various interface of design application terminal, adopt interface type general or commonly used as far as possible, and need to have increased design and production cost to the data patchcord of configuration separately of every kind of interface type.And the user needs to pick out the suitable data patchcord to the interface type that uses, and because each data patchcord is more approximate in shape, obscures easily in use, and user's fallibility selects or leaks and takes, and has brought a lot of inconvenience for user's use.
The utility model content
The technical problem underlying that the utility model will solve is to provide a kind of versatility high, easy to use multi-functional conversion equipment.
For solving the problems of the technologies described above; The utility model provides a kind of conversion equipment; Comprise an input interface, multi-functional change-over circuit and a plurality of not exclusively output interface identical with said input interface, said multi-functional change-over circuit is connected between said input interface and the said output interface.
In a kind of embodiment of the utility model, said input interface is the USB input interface, and said output interface is one or more in video output interface, network connection interface and the USB output interface.
In a kind of embodiment of the utility model, said output interface comprises three, is respectively USB output interface, VGA output interface and network connection interface.
In a kind of embodiment of the utility model, said multi-functional change-over circuit comprises the VGA change-over circuit, and said VGA change-over circuit is connected between said USB input interface and the said VGA output interface.
In a kind of embodiment of the utility model, said multi-functional change-over circuit also comprises drive circuit, and said VGA change-over circuit is connected with said VGA output interface through said drive circuit.
In a kind of embodiment of the utility model, said multi-functional change-over circuit also comprises the port match circuit, and said USB input interface is connected with said VGA change-over circuit through said port match circuit.
In a kind of embodiment of the utility model, said drive circuit and said VGA change-over circuit connection also are connected with the port protection circuit.
In a kind of embodiment of the utility model, also be connected with signal switching circuit between said USB input interface and the said multi-functional change-over circuit, be used for selecting to switch pairing each output interface of said USB input interface.
In a kind of embodiment of the utility model, said USB input interface is public mouthful, and said USB output interface is female mouthful.
The beneficial effect of the utility model is: in use; This conversion equipment can be connected between input equipment and each application terminal with plugging; It comprises an input interface, multi-functional change-over circuit and a plurality of not exclusively output interface identical with said input interface; Said multi-functional change-over circuit is connected between said input interface and the said output interface; Can the conversion of signals through said input interface output be become to satisfy the signal of the required form of above-mentioned a plurality of output interfaces, thereby realize effective transmission of signal between input equipment and each application terminal.To sum up; The shared input interface of this novel conversion equipment that provides; Can connect a plurality of application terminals simultaneously through a plurality of output interfaces, replace the mode that disposes a data patchcord to every kind of interface type separately, reduce design and production cost; Improved the versatility of DTU, it is more convenient, quick that the user uses.
In addition, this input interface can adopt the USB input interface, further improves the versatility of this converter device.
Description of drawings
Fig. 1 is the conversion device structure block diagram one of a kind of embodiment of the utility model;
Fig. 2 is the conversion device structure block diagram two of a kind of embodiment of the utility model;
Fig. 3 is the conversion device structure block diagram three of a kind of embodiment of the utility model;
Fig. 4 is the conversion device structure block diagram four of a kind of embodiment of the utility model;
Fig. 5 is the conversion device structure block diagram five of a kind of embodiment of the utility model;
Fig. 6 is the conversion device structure block diagram six of a kind of embodiment of the utility model;
Fig. 7 is the conversion device structure block diagram seven of a kind of embodiment of the utility model;
Fig. 8 is the circuit diagram of the USB input interface of a kind of embodiment of the utility model to the VGA output interface;
Fig. 9 is the circuit diagram of the USB input interface of a kind of embodiment of the utility model to network connection interface.
Embodiment
Low to existing DTU versatility, be not easily distinguishable between each data wire, be prone to cause the choosing of user's mistake, leak choosing, use problems such as inconvenience, this novel a kind of versatility height, multi-functional conversion equipment that is easy to use of providing.Below in conjunction with concrete embodiment to this novel further specifying.
See also Fig. 1-2; Conversion equipment in this example comprises an input interface that is connected with input unit; Input unit in this example can be computer; Also comprise a plurality of not exclusively with the input interface identical output interfaces corresponding with this input interface, each output interface is used for being connected with each self-corresponding application terminal, like mobile phone, MP 3, computer, projecting apparatus, routing circuit etc.Also be connected with multi-functional change-over circuit between input interface in this example and the output interface; Its effect is the signal that the conversion of signals of host computer output is become to meet the desired form of corresponding output interface; Accomplish the effective transmission of host computer to signal between the application terminal; In order further to improve the versatility of switching device, the input interface in this example can be the USB input interface.
The output interface corresponding with the USB input interface can be one or more in USB output interface, network connection interface and the video output interface in this example; Network connection interface in this example is the crystal head that is used to connect network; As can be RJ 45; Video output interface in this example can comprise VGA (Video Gra phics Array) output interface, HDMI (High Definition Multimedia Interface) output interface etc.; It should be noted that; Output interface in this example comprises an interface that is different from USB interface at least, and promptly the conversion equipment in this example does not comprise only corresponding a plurality of these situation of USB output interface of USB input interface, is essentially different with usb hub commonly used.But a USB input interface in this example is a plurality of output interfaces that are different from other same types of USB interface of correspondence only, can only corresponding a plurality of VGA output interfaces or a plurality of network connection interface like a USB input interface.Comprising three with a corresponding output interface of USB input interface, and to be respectively USB output interface, VGA output interface, network connection interface be example in this example, to this novel further specifying.
See also Fig. 3, the multi-functional change-over circuit in this example comprises respectively and above-mentioned USB output interface, VGA output interface, USB change-over circuit, VGA change-over circuit and network interface change-over circuit that network connection interface is corresponding.When using this conversion equipment; USB change-over circuit, VGA change-over circuit and network interface change-over circuit become host computer the signal of USB output interface, VGA output interface, the desired form of network connection interface respectively through the conversion of signals of USB input interface input; Thereby realize of the effective conversion of an input interface, improved the versatility of conversion equipment the signal between a plurality of output interfaces.
See also Fig. 4; VGA change-over circuit in this example is the decoding circuit of converting video switch; Be used for the YPbPr signal of color difference components outlet output is transferred to the VGA signal of standard; VGA change-over circuit in this example can be preferably the LMH1251 chip, and the multi-functional change-over circuit in this example also comprises power circuit, and this power circuit comprises the negative supply generation module; The negative supply that generates is connected with the earth terminal of LMH1251 chip, and positive supply that power circuit provides and the corresponding limb of LMH1251 chip are connected to LMH1251 provides power supply.In order to guarantee that further the signal after the conversion of LMH1251 chip can effectively output to the VGA output interface; Multi-functional change-over circuit in this example also can further comprise drive circuit; This drive circuit is connected between the input of output and VGA output interface of LMH1251 chip; Drive circuit in this example can be the current feedback drive circuit; Specifically can be preferably LMH6739, drive circuit is exported to the VGA output interface with the signal of LMH1251 chip output after filtering, processing and amplifying, further guaranteed effective transmission of signal.
See also Fig. 5; For the interference signal in the output signal that reduces the USB input interface; Multi-functional change-over circuit in this example also can comprise the port match circuit; The port match circuit is connected between the input of output and VGA change-over circuit of USB input interface, and the port match circuit can carry out rectification, filtering with the signal of USB input interface output, reduces the interference signal in the signal that the VGA change-over circuit receives.
See also Fig. 6; Because electric current, the voltage of VGA change-over circuit inter-process signal are less; The driving force of the clock signal of output is also less; Therefore the drive circuit in this example also can further comprise the digital signal drive sub-circuits, is connected between VGA change-over circuit and the VGA output interface, is used to improve the driving force of the signal of the clock that the VGA change-over circuit exports.See also Fig. 7; Accordingly; For the signal that prevents VGA change-over circuit output because electric current is too big or situation such as voltage transient punctures drive circuit; Multi-functional change-over circuit in this example also can further comprise the port protection circuit, and the port protection circuit is connected with the input that the VGA change-over circuit is connected in drive circuit, and is not breakdown with real-time protection drive circuit.
In order better to understand the utility model, be that example is carried out further detailed explanation with concrete circuit diagram below:
See also Fig. 8; LMH1251 chip and peripheral circuit thereof constitute the VGA change-over circuit in this example; LMH6739 and peripheral circuit thereof constitute the drive circuit in this example; CON8B is the USB input interface in this example, and CONNECTOR DB15 is the VGA output interface in this example, and 3,4,5 pins of CON8B link to each other with the pin 8,10,9 of LMH1251 respectively; Wherein pin 8,10, the circuit between 9 of 3 of CON8B, 4,5 pins and LMH1251 are the port circuit in this example, are used for input signal is carried out Filtering Processing.The output pin one 8,19,20 of LMH1251 is connected with the pin 8,5,2 of LNH6739 respectively; Be used for and after the input of the signal after the conversion is amplified, export to the VGB interface; Wherein the pin 8,5,2 of the input of LNH6739 all is connected with a pull down resistor separately; Be the port protection circuit in this example, be used to prevent that the signal of LMH1251 output from puncturing chip LNH6739.The pin one 3,14 of LMH1251 is connected with the pin one 3,14 of CONNECTOR DB15 respectively through the digital signal drive sub-circuits that the drive circuit in this example comprises, this digital signal drive sub-circuits is used to improve the driving force of the clock signal of LMH1251 output.
See also Fig. 9; This figure for the USB input interface to the change-over circuit between the network connection interface (RJ45-8); Wherein CON8B is the USB input interface in this example, and RJ45-8 is the network connection interface in this example, and the circuit between CON8B and the RJ45-8 is the network interface change-over circuit in this example.
Each output interface of conversion equipment in this example can use simultaneously; Also can use separately; For example can be between USB input interface and multi-functional change-over circuit the signalization commutation circuit, be used between pairing each output port of USB input interface, selecting switching.For example, in the time will using the VGA output interface, then the USB input interface is switched to corresponding with it VGA output interface, accomplish of the conversion of YPbPr signal to the standard VGA format signal through this signal switching circuit.
It should be noted that the USB input interface in this example can be public mouthful, the USB output interface is female mouthful, according to actual needs, also can be arranged to the USB input interface and can be female mouthful, and the USB output interface is public mouthful.
To sum up can know; A USB input interface of this novel conversion equipment that provides can corresponding a plurality of output interfaces through the multi-functional change-over circuit in this example; Therefore can various interface commonly used in routine office work, life be integrated on the conversion equipment, the user is carrying, when using, the situation of choosing, wrong choosing can not occur leaking; Improve the versatility of data wire, also improved user's experience simultaneously.
Above content is the further explain that combines concrete execution mode that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations; Therefore,, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection range of the utility model for the those of ordinary skill of technical field under the utility model.
Claims (9)
1. a conversion equipment is characterized in that, comprises an input interface, multi-functional change-over circuit and a plurality of not exclusively output interface identical with said input interface, and said multi-functional change-over circuit is connected between said input interface and the said output interface.
2. device as claimed in claim 1 is characterized in that, said input interface is the USB input interface, and said output interface is one or more in video output interface, network connection interface and the USB output interface.
3. device as claimed in claim 2 is characterized in that said output interface comprises three, is respectively USB output interface, VGA output interface and network connection interface.
4. device as claimed in claim 3 is characterized in that, said multi-functional change-over circuit comprises the VGA change-over circuit, and said VGA change-over circuit is connected between said USB input interface and the said VGA output interface.
5. device as claimed in claim 4 is characterized in that, said multi-functional change-over circuit also comprises drive circuit, and said VGA change-over circuit is connected with said VGA output interface through said drive circuit.
6. device as claimed in claim 4 is characterized in that, said multi-functional change-over circuit also comprises the port match circuit, and said USB input interface is connected with said VGA change-over circuit through said port match circuit.
7. device as claimed in claim 5 is characterized in that, said drive circuit and said VGA change-over circuit connection also are connected with the port protection circuit.
8. like each described device of claim 2-7, it is characterized in that, also be connected with signal switching circuit between said USB input interface and the said multi-functional change-over circuit, be used for selecting to switch pairing each output interface of said USB input interface.
9. like each described device of claim 2-7, it is characterized in that said USB input interface is public mouthful, said USB output interface is female mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201955651U CN202103292U (en) | 2011-06-10 | 2011-06-10 | Switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201955651U CN202103292U (en) | 2011-06-10 | 2011-06-10 | Switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202103292U true CN202103292U (en) | 2012-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201955651U Expired - Fee Related CN202103292U (en) | 2011-06-10 | 2011-06-10 | Switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202103292U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016124000A1 (en) * | 2015-02-03 | 2016-08-11 | 深圳市高尔夫飞煌科技有限公司 | Compatible data interface |
| CN110209620A (en) * | 2019-07-04 | 2019-09-06 | 深圳昆仑通态科技有限责任公司 | A kind of multiplex roles electronic equipment |
| CN112910490A (en) * | 2021-03-08 | 2021-06-04 | 中国人民解放军军事科学院战争研究院 | Multifunctional transmitter and data transmission method |
-
2011
- 2011-06-10 CN CN2011201955651U patent/CN202103292U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016124000A1 (en) * | 2015-02-03 | 2016-08-11 | 深圳市高尔夫飞煌科技有限公司 | Compatible data interface |
| CN110209620A (en) * | 2019-07-04 | 2019-09-06 | 深圳昆仑通态科技有限责任公司 | A kind of multiplex roles electronic equipment |
| CN112910490A (en) * | 2021-03-08 | 2021-06-04 | 中国人民解放军军事科学院战争研究院 | Multifunctional transmitter and data transmission method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20180610 |