CN200983136Y - Control circuit of share line between keyboard and display - Google Patents
Control circuit of share line between keyboard and display Download PDFInfo
- Publication number
- CN200983136Y CN200983136Y CN 200620140052 CN200620140052U CN200983136Y CN 200983136 Y CN200983136 Y CN 200983136Y CN 200620140052 CN200620140052 CN 200620140052 CN 200620140052 U CN200620140052 U CN 200620140052U CN 200983136 Y CN200983136 Y CN 200983136Y
- Authority
- CN
- China
- Prior art keywords
- pins
- pin
- keyboard
- light emitting
- emitting diode
- 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
- Input From Keyboards Or The Like (AREA)
Abstract
The utility model discloses a keyboard controlling circuit sharing architrave with the display, which comprises a plurality of transverse pins and column pins, a light emitting diode or a keystroke is provided between each transverse pin and all column pins, a keystroke or a light emitting diode is provided between each column pin and all transverse pins. The utility model positions the keyboard and the display in an architrave, reduces the occupied system resources substantially, adopts the engagement of the row and the column and less pins to control more display devices and keys and the number of the display devices and keystrokes that are provided can be arranged reasonably according to the needs without adding a new architrave, at the same time, the number of the display device and the keystroke can be added conveniently and the expansibility of the system is excellent.
Description
[technical field]
The utility model relates to design of electronic circuits, relates in particular to the control circuit that adopts keyboard and demonstration simultaneously.
[background technology]
Often need to adopt keyboard and demonstration in the electronic product, all be that keyboard adopts independent mouth line in the present circuit, show and adopt independent mouth line, like this, keyboard and demonstration just need take two mouth lines, and the mouth line resource of CPU (central processing unit) is very limited, after two mouth lines are occupied, has just limited other function expansion in the system.Simultaneously, each pin can only be controlled a peace key or pilot lamp, poor expandability in mouthful line.
So, how to design a kind of circuit, can make keyboard and show the common port line, save system resource, favorable expandability has become the task of top priority simultaneously.
[summary of the invention]
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of keyboard and the control circuit that shows the common port line, can make keyboard and show the common port line, saves system resource, simultaneously favorable expandability.
For achieving the above object, the utility model proposes a kind of keyboard and the control circuit that shows the common port line, comprise some horizontal pins and some vertical pins, be respectively arranged with a light emitting diode or a button between each horizontal pin and all the vertical pins, be respectively arranged with a button or a light emitting diode between each vertical pin and all the horizontal pins.
As preferably, also be in series with a resistance on each light emitting diode.
As preferably, also be in series with a diode on each button.
As preferably, described horizontal pin is 8, vertically pin is 5,5 horizontal pins respectively and be respectively arranged with light emitting diode and the resistance that is connected in series between all vertical pins, 3 horizontal pins are respectively and be respectively arranged with button and the diode that is connected in series between all vertical pins.
The beneficial effects of the utility model: the utility model is placed on keyboard and display device on the same mouthful of line, the system resource that takies significantly reduces, the employing row and column cooperates, adopt less more display device and the button of pin control, the display device that is provided with and the number of button can rationally be provided with as required, do not need to increase new mouth line, simultaneously, the number that increases display device or button is very convenient, and system extension is good.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the utility model keyboard and the circuit theory diagrams that show the control circuit of common port line.
[embodiment]
Fig. 1 is the utility model keyboard and the circuit theory diagrams that show the control circuit of common port line.Comprise some horizontal pins and some vertical pins, be respectively arranged with a light emitting diode D1 or a button SW1 between each horizontal pin and all the vertical pins, be respectively arranged with a button SW1 or a light emitting diode D1 between each vertical pin and all the horizontal pins.Also be in series with a resistance R 1 on each light emitting diode D1.Also be in series with a diode D1 on each button SW1.
In the present embodiment, described horizontal pin is 8, vertically pin is 5,5 horizontal pins respectively and be respectively arranged with the light emitting diode D1 that is connected in series and 1,3 horizontal pin of resistance R between all vertical pins respectively and be respectively arranged with button SW1 and the diode D1 that is connected in series between all vertical pins.Among Fig. 1, the first pin J1, the second pin J2, the 3rd pin J3, the 4th pin J4 and the 5th pin J5 are 5 vertical pins, and the 6th pin J6, the 7th pin J7, the 8th pin J8, the 9th pin J9 and the tenth pin J10, the 11 pin J11, the 12 pin J12 and the 13 pin J13 are 8 horizontal pins.Wherein, the 6th pin J6, the 7th pin J7 and the 8th pin J8 are provided with button SW1 and diode D1 respectively respectively and between 5 vertical pins, and the 9th pin J9 and the tenth pin J10, the 11 pin J11, the 12 pin J12 and the 13 pin J13 are provided with light emitting diode D1 and resistance R 1 respectively respectively and between 5 vertical pins.Like this, adopt 13 pins just can control 25 light emitting diode D1 and 15 button SW1 in the system, the device that 40 pins of original needs could be controlled adopts 13 pins just can realize now.According to the actual needs, the number of all right flexible light emitting diode D1 and button SW1 is regulated very convenient.Simultaneously, need the number of increase display device or button also very convenient, system extension is good.
The foregoing description is to explanation of the present utility model, is not to qualification of the present utility model, any circuit after the utility model simple transformation is all belonged to protection domain of the present utility model.
Claims (4)
1. keyboard and the control circuit that shows the common port line, it is characterized in that: comprise some horizontal pins and some vertical pins, be respectively arranged with a light emitting diode (D1) or a button (SW1) between each horizontal pin and all the vertical pins, be respectively arranged with a button (SW1) or a light emitting diode (D1) between each vertical pin and all the horizontal pins.
2. keyboard as claimed in claim 1 and the control circuit that shows the common port line is characterized in that: also be in series with a resistance (R1) on each light emitting diode (D1).
3. keyboard as claimed in claim 2 and the control circuit that shows the common port line is characterized in that: also be in series with a diode (D1) on each button (SW1).
4. keyboard as claimed in claim 3 and the control circuit that shows the common port line, it is characterized in that: described horizontal pin is 8, vertically pin is 5,5 horizontal pins respectively and be respectively arranged with light emitting diode (D1) and the resistance (R1) that is connected in series between all vertical pins, 3 horizontal pins are respectively and be respectively arranged with button (SW1) and the diode (D1) that is connected in series between all vertical pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140052 CN200983136Y (en) | 2006-11-20 | 2006-11-20 | Control circuit of share line between keyboard and display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140052 CN200983136Y (en) | 2006-11-20 | 2006-11-20 | Control circuit of share line between keyboard and display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200983136Y true CN200983136Y (en) | 2007-11-28 |
Family
ID=38910289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620140052 Expired - Fee Related CN200983136Y (en) | 2006-11-20 | 2006-11-20 | Control circuit of share line between keyboard and display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200983136Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104919400A (en) * | 2012-12-21 | 2015-09-16 | 苹果公司 | Computer keyboard key scan shared matrix with an individual led per key |
-
2006
- 2006-11-20 CN CN 200620140052 patent/CN200983136Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104919400A (en) * | 2012-12-21 | 2015-09-16 | 苹果公司 | Computer keyboard key scan shared matrix with an individual led per key |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100394361C (en) | Keyboard letter-position layout method and its keyboard | |
| TW200622364A (en) | Electro-optical device and electronic apparatus | |
| TW200706997A (en) | Backlight unit and liquid crystal display having the same | |
| WO2005081140A3 (en) | Modular presentation device for use with pda’s and smartphones | |
| CN105045408B (en) | A kind of notebook computer and its KVM switching methods with KVM key mouses | |
| CN200983136Y (en) | Control circuit of share line between keyboard and display | |
| CN101714053A (en) | Improved touch display screen type computer keyboard input equipment and implementing method thereof | |
| WO2006042804A3 (en) | Design element for the control panel of a device | |
| EP2148262A3 (en) | Notebook computer and keyboard controller thereof | |
| CN202331357U (en) | Dynamic visual organic light emitting diode (OLED) keyboard | |
| CN201156235Y (en) | Computer keyboard | |
| CN206432017U (en) | Sliceable electronic organ teaching peripheral hardware based on bluetooth communication | |
| CN203311461U (en) | Electronic order picking tag with light guide | |
| CN201319592Y (en) | Multi-screen touching figure touching panel | |
| TW200725028A (en) | Flexible printed circuit board and display device utilizing the same | |
| WO2006087724A3 (en) | Multilingual keyboard | |
| CN2456196Y (en) | Computer input device connector | |
| CN203659264U (en) | 51 single-chip microprocessor learning board | |
| CN103164034B (en) | Touch control device | |
| CN205881279U (en) | Simple and easy singlechip experimental apparatus | |
| CN203616606U (en) | Independent button and LED display reuse circuit | |
| CN203196292U (en) | Handle device capable of being used as keyboard mouse through user definition | |
| TW200612317A (en) | Micro-keyboard | |
| CN200944213Y (en) | Adapting plate structure of computer port | |
| CN201563245U (en) | Switching module for multiple 3G operator UIM cards |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20101120 |