CN100555180C

CN100555180C - The keyboard of tool multiple output function

Info

Publication number: CN100555180C
Application number: CNB2007102001140A
Authority: CN
Inventors: 苏晓; 曹翔
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2007-01-26
Filing date: 2007-01-26
Publication date: 2009-10-28
Anticipated expiration: 2027-01-26
Also published as: CN101231555A

Abstract

A kind of keyboard of tool multiple output function, comprise a keyboard module, a keyboard controller, switching switch module and some keyboard plugs that is used to connect host computer, described keyboard module and described keyboard controller are electrical connected, described keyboard controller is electrical connected with described some keyboard plugs that are used to be connected host computer by described change-over switch module, and described keyboard controller optionally electrically connects arbitrary keyboard plug by the described keyboard module of the switching controls of described change-over switch module.The keyboard of described tool multiple output function can be tested the multiple computers main frame easily and efficiently, and cost is lower.

Description

The keyboard of tool multiple output function

Technical field

The present invention relates to a kind of keyboard.

Background technology

Along with popularizing of PC; the market demand of PC increases day by day; manufacturer is in order to enhance productivity; strive that making link at each all accomplishes to save time to the full extent, for example when the test computer main frame, generally tests four or eight even more simultaneously; in order to make testing efficiency higher; usually can use multi-computer switch (KVM switch, KVM are the abbreviations of keyword, video, mouse) to come the switch test host computer, test to make things convenient for the tester.

But a lot of computers such as notebook computer etc. have all possessed display, so use described multi-computer switch to test, can cause the wasting of resources; And, also increased cost to a certain extent because the multi-computer switch price general charged is relatively more expensive.

Summary of the invention

In view of above content, be necessary to provide a kind of tool multiple output function and cheap keyboard, in order to test the multiple computers main frame simultaneously.

A kind of keyboard of tool multiple output function, comprise a keyboard module, one keyboard controller, one switches switch module and some keyboard plugs that is used to connect host computer, described keyboard module and described keyboard controller are electrical connected, described keyboard controller is electrical connected with described some keyboard plugs that are used to be connected host computer by described change-over switch module, described keyboard controller optionally electrically connects arbitrary keyboard plug by the described keyboard module of the switching controls of described change-over switch module, described change-over switch module comprises a single pole multiple throw, output terminal corresponding with described some keyboard plug power supply stitch that are used to connect host computer in the described keyboard controller links to each other with the cutter portion of described single pole multiple throw, the power supply stitch of each keyboard plug all links to each other with first contact of described single pole multiple throw, and the power supply stitch of described some keyboard plugs that are used to connect host computer again respectively with corresponding one by one linking to each other of other contacts of described single pole multiple throw

Compared to prior art, the keyboard of using described tool multiple output function connects the multiple computers main frame, and the switching controls by described switching module, described keyboard module is switched between each host computer very easily, very convenient, fast, and need not use expensive multi-computer switch to switch host computer, greatly reduce cost.

Description of drawings

The present invention is further illustrated in conjunction with embodiment below with reference to accompanying drawing.

Fig. 1 is the theory diagram of the keyboard better embodiment of tool multiple output function of the present invention.

Fig. 2 is the physical circuit synoptic diagram that switches module and keyboard controller and keyboard plug among Fig. 1.

Embodiment

Please common reference Fig. 1 and Fig. 2, the better embodiment of the keyboard of tool multiple output function of the present invention comprises a keyboard module 10, a keyboard controller 20, a switching switch module 30, some keyboard plugs 40 and a mouse 50, and described keyboard module 10 is provided with a mouse interface (not shown).In the present embodiment, described keyboard controller 20 is the keyboard controller of SC83053 for a model, and described mouse interface can be also present popular USB (Universal Serial Bus, the USB (universal serial bus)) interface of PS/2 interface.

Described keyboard module 10 is electrical connected with described keyboard controller 20, described keyboard controller 20 is electrical connected with described some keyboard plugs 40 by described change-over switch module 30, described some keyboard plugs 40 are used to connect some host computers, and described mouse 50 is electrical connected by described mouse interface and described keyboard module 10.By the switching of described change-over switch module 30, described keyboard controller 20 described keyboard module 10 of control and mouse 50 optionally electrically connect arbitrary keyboard plug 40.

Described change-over switch module 30 comprises a single pole multiple throw 32, the quantity of contact is decided according to the quantity of described keyboard plug 40 in the described single pole multiple throw 32, the quantity of keyboard plug 40 described here is that example is illustrated with four, also can increase according to actual needs or reduce, the quantity of contact is five (quantity that is keyboard plug 40 adds 1) in the single pole multiple throw 32 described herein.Keyboard plug described in the present embodiment 40 is PS/2 keyboard plug (stitch of PS/2 keyboard plug comprises that a data-signal stitch DATA, two does not have the stitch of connection NC, a ground pin GND, a power supply stitch VCC and a clock signal pins CLOCK).

Wherein, the data-signal stitch DATA of each keyboard plug 40, do not have to connect stitch NC, the output terminal that ground pin GND and clock signal pins CLOCK are all corresponding with described keyboard controller 20 links to each other.The output terminal of corresponding PS/2 keyboard plug power supply stitch VCC links to each other with the S of cutter portion of described single pole multiple throw 32 in the described keyboard controller 20, the power supply stitch VCC of each keyboard plug 40 all links to each other with first contact 1 of described single pole multiple throw 32, the power supply stitch VCC of described four keyboard plugs 40 again respectively with second contact 2 of described single pole multiple throw 32, the 3rd contact 3, the 4th contact 4, the 5th contact 5 is electrical connected, and the signal wire that connects each stitch in described four keyboard plugs 40 in the present embodiment is integrated in a cable 34 backs according to above-mentioned annexation and is electrical connected with described keyboard controller 20 and single pole multiple throw 32.

When four host computer (not shown) of test, described four keyboard plugs 40 are plugged into respectively on the corresponding keyboard interface of described four host computers.Under the original state, the S of cutter portion of described single pole multiple throw 32 and first contact 1 join, and open the power supply of described four host computers this moment, and then described four host computers all can be initialised to described keyboard module 10 and mouse 50.When a certain host computer of need test, only the S of cutter portion of described single pole multiple throw 32 need be switched on the contact corresponding and get final product with the described host computer that need test, have only this moment the described host computer of test that needs to operate by described keyboard module 10 and mouse 50, and can't communicate by letter between other host computers and described keyboard module 10 and the mouse 50.Test another host computer if desired, in like manner only needing the S of cutter portion with described single pole multiple throw 32 switch to this needs to get final product on the corresponding contact of the host computer of test, very convenient, fast.Use the keyboard of described tool multiple output function to test the multiple computers main frame, can be applied directly to the display that host computer self has, reduce the wasting of resources, and need not use expensive multi-computer switch to switch host computer, greatly reduced cost.

Described keyboard module 10 and keyboard controller 20 can directly be used existing P S/2 keyboard, also can design according to actual needs to be more suitable for the keyboard module that is used to test, and described keyboard controller 20 is programmed accordingly, to further facilitate test.Described keyboard plug 40 also can change USB interface into, and connected mode is similar to the connected mode of above-mentioned embodiment, repeats no more herein.

Claims

1. the keyboard of a tool multiple output function, comprise a keyboard module, one keyboard controller, one switches switch module and some keyboard plugs that is used to connect host computer, described keyboard module and described keyboard controller are electrical connected, described keyboard controller is electrical connected with described some keyboard plugs that are used to be connected host computer by described change-over switch module, described keyboard controller optionally electrically connects arbitrary keyboard plug by the described keyboard module of the switching controls of described change-over switch module, described change-over switch module comprises a single pole multiple throw, output terminal corresponding with described some keyboard plug power supply stitch that are used to connect host computer in the described keyboard controller links to each other with the cutter portion of described single pole multiple throw, the power supply stitch of each keyboard plug all links to each other with first contact of described single pole multiple throw, and the power supply stitch of described some keyboard plugs that are used to connect host computer again respectively with corresponding one by one linking to each other of other contacts of described single pole multiple throw.

2. the keyboard of tool multiple output function as claimed in claim 1 is characterized in that: described keyboard plug is the PS/2 keyboard plug.

3. the keyboard of tool multiple output function as claimed in claim 1, it is characterized in that: the keyboard of described tool multiple output function also comprises a mouse, described keyboard module is provided with a mouse interface, and described MouseAcross crosses described mouse interface and described keyboard module is electrical connected.

4. the keyboard of tool multiple output function as claimed in claim 3 is characterized in that: described mouse interface is PS/2 interface or USB interface.