CN1949142A - Keyboard - Google Patents
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- CN1949142A CN1949142A CN 200510112585 CN200510112585A CN1949142A CN 1949142 A CN1949142 A CN 1949142A CN 200510112585 CN200510112585 CN 200510112585 CN 200510112585 A CN200510112585 A CN 200510112585A CN 1949142 A CN1949142 A CN 1949142A
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- key assignments
- output
- interface
- keyboard
- output interface
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Abstract
The invention supplies key board. It includes two or more output interfaces which can be connected with product application terminal with different interfaces. The outputted key assignments can be cryptographic and plain code ones to realize one key board has double output functions, which is convenient for user's using. The corresponding function uses software to realize. This can reduce hardware cost.
Description
Technical field
The present invention relates to a kind of man-machine inputting equipment, relate in particular to a kind of keyboard.
Background technology
Keyboard be people's routine work with life in a kind of peripheral hardware commonly used, purposes is very extensive, comprises that computing machine, industrial computer, telephone set and POS machine etc. all can use keyboard.Simultaneously, the kind of keyboard is also very many, can be divided into 101 keyboards, 105 keyboards and 108 keyboards etc. of standard by model, also has the portable keyboard of computer notebook special use; Can be divided into computer keyboard, industrial computer keyboard and code keypad etc. by using; Because general industrial computer also can be thought a computing machine, so keyboard can be divided into two classes substantially: computer keyboard and code keypad.
The output interface that common computer keyboard adopts is the PS/2 interface, also has to adopt USB interface; The key assignments of its output is a plain code.
The output interface that common code keypad adopts is serial ports, and what the key assignments of its output had a password also has plenty of plain code.
The mainboard of present product application terminal generally designs the computer keyboard that need to use the PS/2 interface, output be plain code; And the output interface that needs of the design on the POS plate is the code keypad of serial ports; But the position of a keyboard is only left in general product application terminal on contour structures, can cause bigger inconvenience as two keyboards are set for it.
Therefore, just need a kind of keyboard and can use two kinds of interfaces to be connected with the application terminal of product, user-friendly.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of keyboard and can use two kinds of interfaces to be connected with the application terminal of product, user-friendly.
The objective of the invention is to be achieved through the following technical solutions:
A kind of keyboard comprises two or more output interface being connected with the product application terminal of distinct interface.
Described output interface comprises:
Password key assignments output interface: be used to be output as the password key assignments after the encryption;
Plain code key assignments output interface: be used to export the plain code key assignments of not encrypting;
Described password key assignments output interface and/or plain code key assignments output interface all can adopt PS/2 interface, USB interface, parallel port and/or serial ports.
Described keyboard also comprises:
Switching controls module: be used between different output interfaces, switching, the output key assignments of keyboard is exported from the output interface of correspondence;
Main control CPU module: control switching controls module, the input of key assignments and the work of output interface.
Described switching controls module comprises:
Interface modular converter: the output key assignments of keyboard is encrypted, be converted to the output of password key assignments;
Analog switch module: the output key assignments of keyboard is directly exported with the plain code key assignments;
Select module: receive the order of main control CPU module, select by interface modular converter output password key assignments and/or by analog switch module output plain code key assignments.
Described interface modular converter connects electronics gathering POS plate by password key assignments output interface.
Described analog switch module connects mainboard by plain code key assignments output interface.
By technique scheme as can be seen, the present invention has realized two kinds of output functions with a keyboard.Convenient for users to use.Corresponding function adopts software to realize that hardware cost also can reduce.
Description of drawings
Fig. 1 is the structural representation of keyboard of the present invention.
Embodiment
The embodiment of a kind of keyboard of the present invention is as shown in Figure 1: comprise two or more output interface, can be connected with the product application terminal of distinct interface.Output interface generally comprises PS/2 interface, USB interface, parallel port and/or serial ports.Key assignments by output can be divided into password key assignments output interface and plain code key assignments output interface, and wherein password key assignments output interface is used to be output as the password key assignments after the encryption; Plain code key assignments output interface is used to export the plain code key assignments of not encrypting.Certainly, described password key assignments output interface and plain code key assignments output interface all can adopt PS/2 interface, USB interface, parallel port and/or serial ports.
For described keyboard can be switched between different interfaces at work, also be provided with the switching controls module, the switching controls module is used for switching between different output interfaces, and the output key assignments of keyboard is exported from the output interface of correspondence.Described switching controls module comprises: interface modular converter, analog switch module and selection module, wherein:
Interface modular converter: the output key assignments of keyboard is encrypted, be converted to the output of password key assignments, interface modular converter connects electronics gathering POS plate by password key assignments output interface.
The analog switch module: the output key assignments of keyboard is directly exported with the plain code key assignments, and the analog switch module connects mainboard by plain code key assignments output interface.
Select module: receive the order of main control CPU module, select by interface modular converter output password key assignments and/or by analog switch module output plain code key assignments.
There is described keyboard all the main control CPU module will be arranged again, main control CPU module controls switching controls module, the input of key assignments and the work of output interface.
Because in actual applications, what the mainboard of product terminal needed is the keyboard of PS/2 interface, and output is plain code, and POS plate needs is the code keypad of serial ports output, as shown in Figure 1: keyboard comprises the main control CPU module, analog switch module and interface modular converter, interface modular converter adopt RS232 interface conversion chip, and external interface has two kinds:
One: PS/2 mouth, this passage are that the main control CPU module is carried out the transmission of signal by the keyboard mouth of analog switch module and mainboard, output be plain code.
Two: serial ports, serial ports passage are after the signal of main control CPU module is changed by interface modular converter, to carry out data transmission with the POS plate again, and this circuit-switched data often adopts the mode of encryption to send.
The keyboard workflow: keyboard is opened the analog switch of analog switch module by the main control CPU module controls in the back that powers on, when the main control CPU module does not receive the order of POS plate, the key assignments of button all outputs to mainboard, key assignments meets the computing machine relevant criterion, and mainboard is carried out corresponding operation according to corresponding key assignments.Receive the order of POS plate when the main control CPU module after, the main control CPU module is closed the analog switch of analog switch module by selecting module, at this moment the operation of determining according to corresponding command execution outputs to the POS plate with the serial ports conversion chip of data by interface modular converter at last.
As seen, the present invention has realized two kinds of output functions with a keyboard.Convenient for users to use.Corresponding function adopts software to realize that hardware cost also can reduce.
The above; only be the preferable embodiment of invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (7)
1, a kind of keyboard is characterized in that, comprises two or more output interface, can be connected with the product application terminal of distinct interface.
2, keyboard according to claim 1 is characterized in that, described output interface comprises:
Password key assignments output interface: be used to be output as the password key assignments after the encryption;
Plain code key assignments output interface: be used to export the plain code key assignments of not encrypting.
3, keyboard according to claim 1 is characterized in that, described password key assignments output interface and/or plain code key assignments output interface all can adopt PS/2 interface, USB interface, parallel port and/or serial ports.
4, keyboard according to claim 1 is characterized in that, also comprises:
Switching controls module: be used between different output interfaces, switching, the output key assignments of keyboard is exported from the output interface of correspondence;
Main control CPU module: control switching controls module, the input of key assignments and the work of output interface.
5, keyboard according to claim 4 is characterized in that, described switching controls module comprises:
Interface modular converter: the output key assignments of keyboard is encrypted, be converted to the output of password key assignments;
Analog switch module: the output key assignments of keyboard is directly exported with the plain code key assignments;
Select module: receive the order of main control CPU module, select by interface modular converter output password key assignments and/or by analog switch module output plain code key assignments.
6, keyboard according to claim 5 is characterized in that, described interface modular converter connects electronics gathering POS plate by password key assignments output interface.
7, keyboard according to claim 5 is characterized in that, described analog switch module connects mainboard by plain code key assignments output interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101125857A CN100381980C (en) | 2005-10-11 | 2005-10-11 | Keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101125857A CN100381980C (en) | 2005-10-11 | 2005-10-11 | Keyboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1949142A true CN1949142A (en) | 2007-04-18 |
| CN100381980C CN100381980C (en) | 2008-04-16 |
Family
ID=38018675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101125857A Expired - Fee Related CN100381980C (en) | 2005-10-11 | 2005-10-11 | Keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100381980C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955561A (en) * | 2011-08-30 | 2013-03-06 | 安凯(广州)微电子技术有限公司 | Embedded processor-based analog PS/2 interface implementation system and method |
| CN103207845A (en) * | 2012-01-16 | 2013-07-17 | 广州三星通信技术研究有限公司 | Method for connecting PS/2 keyboard with portable terminal and portable terminal |
| CN105005391A (en) * | 2015-06-29 | 2015-10-28 | 浪潮集团有限公司 | Device and method for realizing keyboard key value replacement based on FPGA |
| CN108197501A (en) * | 2017-12-28 | 2018-06-22 | 天地融科技股份有限公司 | Information input equipment inputs encryption method, device and the information input equipment of information |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100358370B1 (en) * | 2000-03-24 | 2002-10-25 | 공원일 | Keyboard with the functions of telephone, recorder and burglarproof |
| CN2482706Y (en) * | 2001-05-08 | 2002-03-20 | 段卫东 | Computer keyboard with many kinds of interface |
-
2005
- 2005-10-11 CN CNB2005101125857A patent/CN100381980C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955561A (en) * | 2011-08-30 | 2013-03-06 | 安凯(广州)微电子技术有限公司 | Embedded processor-based analog PS/2 interface implementation system and method |
| CN102955561B (en) * | 2011-08-30 | 2016-08-03 | 安凯(广州)微电子技术有限公司 | Simulation PS/2 Interface for System based on flush bonding processor and implementation method |
| CN103207845A (en) * | 2012-01-16 | 2013-07-17 | 广州三星通信技术研究有限公司 | Method for connecting PS/2 keyboard with portable terminal and portable terminal |
| CN103207845B (en) * | 2012-01-16 | 2016-08-10 | 广州三星通信技术研究有限公司 | PS/2 keyboard is connected to method and the portable terminal of portable terminal |
| CN105005391A (en) * | 2015-06-29 | 2015-10-28 | 浪潮集团有限公司 | Device and method for realizing keyboard key value replacement based on FPGA |
| CN108197501A (en) * | 2017-12-28 | 2018-06-22 | 天地融科技股份有限公司 | Information input equipment inputs encryption method, device and the information input equipment of information |
| CN108197501B (en) * | 2017-12-28 | 2021-12-24 | 天地融科技股份有限公司 | Encryption method and device for input information of information input equipment and information input equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100381980C (en) | 2008-04-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20080416 Termination date: 20141011 |
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| EXPY | Termination of patent right or utility model |