CN1335683A - Multiple selecting structure and method for keyboard controller - Google Patents
Multiple selecting structure and method for keyboard controller Download PDFInfo
- Publication number
- CN1335683A CN1335683A CN 00121928 CN00121928A CN1335683A CN 1335683 A CN1335683 A CN 1335683A CN 00121928 CN00121928 CN 00121928 CN 00121928 A CN00121928 A CN 00121928A CN 1335683 A CN1335683 A CN 1335683A
- Authority
- CN
- China
- Prior art keywords
- led
- keyboard controller
- jumper
- pin
- manufacturer
- 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.)
- Granted
Links
Images
Landscapes
- Input From Keyboards Or The Like (AREA)
Abstract
The multiple selection of the keyboard controller is for the user or client to select proper data through the single keyboard controller during the period between the initial setting and the normal operation by using available the LED pins and matching with the trigger signal. Furthermore, by using the sequential EEPROM mode outside the same pins, relative new data not inside the keyboard controller may be filled. In addition, in different application fields, only using more keyboard controller I/O ports can combined more elastic varying space.
Description
The invention relates to a kind of multiple selection framework, and particularly include the multiple selection framework and the system of selection thereof of manufacturer's identification code and matrix relevant for a kind of keyboard controller, circuit and a few keys disk controller pin of system to simplify most, and it is shared with LED output inlet (I/O Port), can in keyboard controller, select needed data, or provide corresponding data to read from the outside to keyboard controller in the mode that adds list type electricity rewriting programmable read only memory (serialEEPROM).
The peripheral correlation control unit of many now PC (PC) has been integrated several complicated functions mostly, mainly be to reach compact purpose for the required part of product itself, circuit are simplified, even the product that has only needs a controller to operate.Therefore, the supplier of drawing device that is developer still need provide the client parameter setting of many groups, and purpose is can be applied on the different products with single controller, the restraining client cost and the stock that gets the raw materials ready, and this phenomenon is particularly on the keyboard product of PC.
Keyboard manufacturers is many based on Original Engineering Manufacturing processing (OEM), and promptly itself needs provide different travellers the product of different kenels, model, and its difference is client's identification code, keyboard matrix arrangement, product serial number or the difference of the function that provides or the like.With present each OEM factory or technology that the goods producer was utilized, the technology that it is continued to use or similarly use can be divided into following three types haply:
(1), fixed: the related data of only depositing one group of client in the promptly same controller, then product and integrated circuit (IC) manufacturer is necessary for each different sub-client its corresponding controller is provided, for getting the raw materials ready and the stock aspect can produce the negative factor that raises the cost.
(2), external EEPROM: the method is for depositing in the outer external list type EEPROM of controller with all easy changes or customer data, controller inside is not deposited the data of this part fully, though the method can make the controller uniform specification, promptly all different clients can both use same controller, but but make, improved the volume production cost equally because of need add EEPROM.
(3), be different from another kind of selection mode of the present invention: utilize the output inlet n of controller individual, connect preface logical one or 0 with the outside and be combined into 2
nIndividual choice.Though this method can be preset data in controller internal storage array equally, but still can't solve exceptional situation, data still can't be assisted by the outside and be imported, moreover also must use the output of applying use on the controller to enter the mouth.
Therefore, hold these different data as single controller how, also can build new data in addition from the outside by auxiliary mode again, these flexible application modes are the directions that are worth development at present.
In view of this, the present invention proposes the multiple selection framework that a kind of keyboard controller includes manufacturer's identification code and matrix, comprises a keyboard controller, three LED current-limiting resistances, three LED light and six jumpers.Above-mentioned keyboard controller has a LED 0 pin, a LED 1 pin, a LED 2 pins, one first output inlet and one second output inlet.One end of the one LED current-limiting resistance, the 2nd LED current-limiting resistance and the 3rd LED current-limiting resistance all is connected to a voltage source.The positive terminal of first LED light connects the other end of a LED current-limiting resistance, LED 0 pin of its negative pole end connecting key disk controller.The positive terminal of second LED light connects the other end of the 2nd LED current-limiting resistance, LED 1 pin of its negative pole end connecting key disk controller.The positive terminal of the 3rd LED light connects the other end of the 3rd LED current-limiting resistance, LED 2 pins of its negative pole end connecting key disk controller.First jumper places between the first output inlet and LED 0 pin.Second jumper places between the first output inlet and LED 1 pin.The 3rd jumper places the first output inlet and LED 2 pins.The 4th jumper places between the second output inlet and LED 0 pin.The 5th jumper places between the second output inlet and LED 1 pin.And the 6th jumper places between the second output inlet and LED 2 pins.And have only a conducting during first group of running of first jumper, second jumper, the 3rd jumper at most, have only a conducting during second group of running of the 4th jumper, the 5th jumper, the 6th jumper, and first group is independent of each other with second group of running.
Wherein, first jumper, second jumper, the 3rd jumper, the 4th jumper, the 5th jumper, the 6th jumper can design in an EEPROM or non-volatility memorizer, store a customer demand data in this EEPROM or the non-volatility memorizer, in order to be input to this keyboard controller, to replenish its not enough data.The one LED current-limiting apparatus, the 2nd LED current-limiting apparatus and the 3rd LED current-limiting apparatus then can be a resistance, inductance, a lead three and select one.
The present invention proposes the multiple selection method that a kind of keyboard controller includes manufacturer's identification code and matrix, comprises at first making keyboard controller be in initial condition.Then normally read sequential according to the SCLK of list type EEPROM and SDATA pin and obtain the first stroke data by several output inlets of keyboard controller.Judge afterwards whether this first stroke data value is insignificant numerical value, words if not, the expression keyboard controller is externally connected to list type EEPROM, read in the keyboard controller to finish selection operation with being about to its inner complete data, if words, expression keyboard controller outside does not add any list type EEPROM, also is about to carry out the selected operation of inside information.Carry out the selected operation of inside information, utilize several jumpers to set and via the accurate position input of several LED pins of keyboard controller, selection obtains the jumper of building chart within the corresponding keys disk controller and sets combination.
Keyboard controller of the present invention includes the multiple selection framework of manufacturer's identification code and matrix, might not limit the LED pin and be respectively three and two with output inlet number, as long as formed each the group jumper of all LED pins that each output inlet is corresponding with it has only a conducting, and unaffected each other the getting final product of each group.
The keyboard controller that the present invention proposes includes the multiple selection framework and the system of selection thereof of manufacturer's identification code and matrix, system utilizes the LED pin of existing keyboard controller, make full use of its at initial setting during the regular event, cooperate triggering signal to allow user or client can on single keyboard controller, select suitable data, more can utilize identical pin to add the mode of list type EEPROM, fill in newly and not in the data of keyboard controller internal preset.In addition, on different applications,, all can go out more more flexible variations space with same technical combinations as long as more keyboard controller output inlet is arranged.
For above-mentioned and other purposes of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below:
The simple declaration of accompanying drawing:
Shown in Figure 1 is the composition Organization Chart that includes the multiple selection technology of manufacturer's identification code and matrix according to a kind of keyboard controller of a preferred embodiment of the present invention.
Shown in Figure 2 is the Organization Chart that the present invention is applied to external list type EEPROM; And
Fig. 3 demonstrates the operational flowchart of using framework of the present invention.
The label declaration of accompanying drawing:
10: keyboard controller
12,14,16:LED indicator light
18,20,22:LED current-limiting resistance
24: list type EEPROM
With the application technology of keyboard, because of scanning array has taken most control pin, and trend is still constantly expansion of scan line, adds light-emittingdiode (LED) indicator light etc., and available pin is very limited.Circuit and the minority controller pin of the present invention to simplify most, and it is shared with LED output inlet (I/OPort), self controllable system device is selected required data (can hold 16 groups or more altogether), or provides corresponding data to read to controller from the outside in the mode that adds list type electricity rewriting programmable read only memory (serial EEPROM).And relevant for technology contents of the present invention, will be described in detail in down by means of preferred embodiment.
Please refer to Fig. 1, shown in it is the composition Organization Chart that includes the multiple selection technology of manufacturer's identification code and matrix according to a kind of keyboard controller of a preferred embodiment of the present invention.
Composition framework of the present invention as shown in Figure 1, comprise a keyboard controller 10, three 12,14 and 16, three 18,20 and 22 and six jumpers of LED current-limiting resistance of LED light (Jumper) JP1, JP2, Jp3, JP4, JP5 and JP6, wherein jumper JP1～JP6 can be open circuit (open) or short circuit (short) respectively.In addition, LED current-limiting resistance 18 also can make into inductance, lead or even the device of other high value, must act on as long as can bring into play the restriction current value.
The positive terminal of LED light 12 connects an end of LED current-limiting resistance 18, LED 0 pin of its negative pole end connecting key disk controller 10, and the other end of LED current-limiting resistance 18 connects a voltage source V CC.The positive terminal of LED light 14 connects an end of LED current-limiting resistance 20, LED 1 pin of its negative pole end connecting key disk controller 10, and the other end of LED current-limiting resistance 20 connects voltage source V CC.The positive terminal of LED light 16 connects an end of LED current-limiting resistance 22, LED 2 pins of its negative pole end connecting key disk controller 10, and the other end of LED current-limiting resistance 22 connects voltage source V CC.Jumper JP 1 places between the output inlet ID 0 and LED 0 pin of keyboard controller 10.Jumper JP 2 places between output inlet ID 0 and LED 1 pin.Jumper JP 1 places between output inlet ID 0 and LED 2 pins.Jumper JP 4 places between output inlet ID 1 and LED 0 pin.Jumper JP 5 places between output inlet ID 1 and LED 1 pin.Jumper JP 6 places between output inlet ID1 and LED 2 pins.
In above-mentioned, the main purpose of each jumper JP 1～JP 6 is respectively to be used for as output inlet ID 0, ID 1 bridge that is connected with LED 0～LED 2 pins.For instance, when jumper JP 3 was short-circuit condition, output inlet ID 0 was to be connection status with LED 2 pins.And seeing through the setting of jumper JP 1～JP 6 and the accurate position input of LED0～2 three pins, the correspondence of coming the built-in chart of options button disk controller 10 can be selected suitable data on keyboard controller 10.
Please refer to Fig. 2, shown in it is the Organization Chart that the present invention is applied to external list type EEPROM.
Fig. 2 is similar to Fig. 1, and maximum difference is to have replaced with the list type EEPROM 24 of Fig. 2 the function of jumper JP 1～JP 6 of Fig. 1, so components identical replaces it with same numeral.
When the correspondence of the built-in chart of keyboard controller 10 can't satisfy requirement of client, that is the required data of client is when being built in the keyboard controller 10 in not, can external one contain the output inlet ID 0 and ID 1 of the list type EEPROM 24 of customer demand data this moment to keyboard controller 10, then just the inside complete data of this list type EEPROM 24 is read (Download) to keyboard controller 10, so the data that can on keyboard controller 10, obtain wanting.
Please be simultaneously with reference to Fig. 1, Fig. 2 and Fig. 3.Shown in Figure 2 is the Organization Chart that the present invention is applied to external list type EEPROM, and Fig. 3 demonstrates the operational flowchart of using framework of the present invention.
Step 101: at first, make keyboard controller 10 be in initial condition.
Step 102: normally read sequential by the output of keyboard controller 10 inlet ID 0 and 1 liang of pin of ID according to the SCLK of list type EEPROM 24 and SDATA pin and obtain the first stroke data, please refer to shown in Figure 2.
Step 103: judge that whether this first stroke data value is insignificant 0 * 00 or 0 * ff.If not, expression keyboard controller 10 is externally connected to list type EEPROM 24, then carry out step 104.If expression keyboard controller 10 outsides do not add any list type EEPROM 24 (situation of list type EEPROM 24 faults is not considered), also be about to carry out selected from inside information, then carry out step 105.
Step 104: expression keyboard controller 10 outsides are connected to list type EEPROM 24, then just its inner complete data are read (Download) to keyboard controller 10.Afterwards, carry out step 108.
Step 105: utilize jumper JP 1, JP 2, JP 3, JP 4, JP 5 to set and select the corresponding of built-in chart with JP 6, ID 0 sends low level (Lo) pulse wave, 1 of ID keeps high levle (Hi), obtain the jumper of JP 1～JP 3 by the accurate position input of LED 0～2 three pins and set, please refer to shown in Figure 1.
Step 106: continue to keep Hi by ID 0, ID 1 sends the Lo pulse wave, is obtained the jumper setting of JP 4～JP 6 equally by the accurate position of LED 0～2 three pins.
Step 107: via step 105 and 106 liang of steps, can obtain the setting combination of JP 1～JP 6, the interference but the LED light 12,14 after the setting of considering jumper JP 1～JP 6 will be avoided and 16 normal light on and off are subjected to conflicting, so JP 1～JP 3 can't set the short circuit (short) of 2 groups above (containing) simultaneously, JP 4～JP 6 is also same, so JP 1～JP 6 can be combined into 16 kinds of patterns as subordinate list one altogether.So far, keyboard controller 10 can be finished 16 groups of data by the setting of jumper JP 1～JP 6 and select one action.
Step 108: the selection of data so far comes to an end, no matter selected or outside list type EEPROM 24 reads all and finishes by jumper JP 1～JP 6, LED 0～2 pin reverts to the delivery outlet of the normal indication of LED.
Step 109: operation is finished.
In sum, the present invention focuses on the LED pin that utilizes existing keyboard controller, make full use of its at initial setting during the regular event, cooperate triggering signal to allow user or client can on single keyboard controller, select suitable data, more can utilize identical pin to add the mode of list type EEPROM, fill in newly and not in the data of keyboard controller internal preset.
In addition, on different applications,, all can go out more more flexible variations space with same technical combinations as long as more keyboard controller output inlet is arranged.Subordinate list one
Wherein, short circuit (short) is represented in " 1 " in the subordinate list one, " 0 " representative open circuit (open).
| Group | ??JP1 | ??JP2 | ??JP3 | ??JP4 | ??JP5 | ??JP6 |
| ????1 | ???0 | ???0 | ???0 | ???0 | ???0 | ???0 |
| ????2 | ???0 | ???0 | ???0 | ???0 | ???0 | ???1 |
| ????3 | ???0 | ???0 | ???0 | ???0 | ???1 | ???0 |
| ????4 | ???0 | ???0 | ???0 | ???1 | ???0 | ???0 |
| ????5 | ???0 | ???0 | ???1 | ???0 | ???0 | ???0 |
| ????6 | ???0 | ???0 | ???1 | ???0 | ???0 | ???1 |
| ????7 | ???0 | ???0 | ???1 | ???0 | ???1 | ???0 |
| ????8 | ???0 | ???0 | ???1 | ???1 | ???0 | ???0 |
| ????9 | ???0 | ???1 | ???0 | ???0 | ???0 | ???0 |
| ????10 | ???0 | ???1 | ???0 | ???0 | ???0 | ???1 |
| ????11 | ???0 | ???1 | ???0 | ???0 | ???1 | ???0 |
| ????12 | ???0 | ???1 | ???0 | ???1 | ???0 | ???0 |
| ????13 | ???1 | ???0 | ???0 | ???0 | ???0 | ???0 |
| ????14 | ???1 | ???0 | ???0 | ???0 | ???0 | ???1 |
| ????15 | ???1 | ???0 | ???0 | ???0 | ???1 | ???0 |
| ????16 | ???1 | ???0 | ???0 | ???1 | ???0 | ???0 |
Though the present invention discloses as above with preferred embodiment; but it is not in order to qualification the present invention, the insider, without departing from the spirit and scope of the present invention; can do various changes and retouching, so protection scope of the present invention should be by being as the criterion that the accompanying Claim book is defined.
Claims (19)
1. a keyboard controller includes the multiple selection framework of manufacturer's identification code and matrix, comprising:
One keyboard controller, this keyboard controller have a LED 0 pin, a LED 1 pin, a LED 2 pins, one first output inlet and one second output inlet;
One the one LED current-limiting apparatus, the one end connects a voltage source;
One the 2nd LED current-limiting apparatus, the one end connects this voltage source;
One the 3rd LED current-limiting apparatus, the one end connects this voltage source;
One first LED light, its positive terminal connects the other end of a LED current-limiting apparatus, and its negative pole end connects this LED 0 pin of this keyboard controller;
One second LED light, its positive terminal connects the other end of the 2nd LED current-limiting apparatus, and its negative pole end connects this LED 1 pin of this keyboard controller;
One the 3rd LED light, its positive terminal connects the other end of the 3rd LED current-limiting apparatus, and its negative pole end connects these LED 2 pins of this keyboard controller;
One first jumper places between this first output inlet and this LED 0 pin;
One second jumper places between this first output inlet and this LED 1 pin;
One the 3rd jumper places between this first output inlet and these LED 2 pins;
One the 4th jumper places between this second output inlet and this LED 0 pin;
One the 5th jumper places between this second output inlet and this LED 1 pin; And
One the 6th jumper places between this second output inlet and these LED 2 pins;
Wherein, has only a conducting during first group of running of this first jumper, this second jumper, the 3rd jumper at most, have only a conducting during second group of running of the 4th jumper, the 5th jumper, the 6th jumper, and this first group is independent of each other with this second group running.
2. keyboard controller as claimed in claim 1 includes reselection procedure framework more than manufacturer's identification code and the matrix, and wherein this first jumper, this second jumper, the 3rd jumper, the 4th jumper, the 5th jumper, the 6th jumper are positioned at an EEPROM.
3. keyboard controller as claimed in claim 2 includes reselection procedure framework more than manufacturer's identification code and the matrix, and wherein this EEPROM stores a customer demand data, in order to be input to this keyboard controller, to replenish its not enough data.
4. keyboard controller as claimed in claim 1 includes reselection procedure framework more than manufacturer's identification code and the matrix, and wherein this first jumper, this second jumper, the 3rd jumper, the 4th jumper, the 5th jumper, the 6th cross-over connection linear system are positioned at a non-volatility memorizer.
5. keyboard controller as claimed in claim 4 includes the multiple selection framework of manufacturer's identification code and matrix, and wherein this non-volatility memorizer stores a customer demand data, in order to be input to this keyboard controller, to replenish its not enough data.
6. keyboard controller as claimed in claim 1 includes the multiple selection framework of manufacturer's identification code and matrix, and wherein a LED current-limiting apparatus, the 2nd LED current-limiting apparatus and the 3rd LED current-limiting apparatus can be a resistance, an inductance, a lead thrin.
7. a keyboard controller includes the multiple selection framework of manufacturer's identification code and matrix, comprising:
One keyboard controller, this keyboard controller have a LED 0 pin, a LED 1 pin, a LED 2 pins and a plurality of output inlet;
One the one LED current-limiting apparatus, the one end connects a voltage source;
One the 2nd LED current-limiting apparatus, the one end connects this voltage source;
One the 3rd LED current-limiting apparatus, the one end connects this voltage source;
One first LED light, its positive terminal connects the other end of a LED current-limiting apparatus, and its negative pole end connects this LED 0 pin of this keyboard controller;
One second LED light, its positive terminal connects the other end of the 2nd LED current-limiting apparatus, and its negative pole end connects this LED 1 pin of this keyboard controller;
One the 3rd LED light, its positive terminal connects the other end of the 3rd LED current-limiting apparatus, and its negative pole end connects these LED 2 pins of this keyboard controller;
A plurality of first jumpers place respectively respectively between this output inlet and this LED 0 pin;
A plurality of second jumpers place respectively respectively between this output inlet and this LED 1 pin; And
A plurality of the 3rd jumpers place respectively respectively between this output inlet and these LED 2 pins;
Wherein, each output inlet has only a conducting with this LED 0 pin, this LED 1 pin, formed each the group jumper of these LED 2 pins, and each group is unaffected each other.
8. keyboard controller as claimed in claim 7 includes reselection procedure framework more than manufacturer's identification code and the matrix, and wherein those first jumpers, those second jumpers, those the 3rd cross-over connection linear systems are positioned at an EEPROM.
9. keyboard controller as claimed in claim 8 includes the multiple selection framework of manufacturer's identification code and matrix, and wherein this EEPROM stores a customer demand data, in order to be input to this keyboard controller, to replenish its not enough data.
10. keyboard controller as claimed in claim 7 includes the multiple selection framework of manufacturer's identification code and matrix, and wherein those first jumpers, those second jumpers, those the 3rd cross-over connection linear systems are positioned at a non-volatility memorizer.
11. keyboard controller as claimed in claim 10 includes the multiple selection framework of manufacturer's identification code and matrix, wherein this non-volatility memorizer stores a customer demand data, in order to be input to this keyboard controller, to replenish its not enough data.
12. keyboard controller as claimed in claim 7 includes the multiple selection framework of manufacturer's identification code and matrix, wherein a LED current-limiting apparatus, the 2nd LED current-limiting apparatus and the 3rd LED current-limiting apparatus can be a resistance, an inductance, a lead three and select one.
13. a keyboard controller includes the multiple selection framework of manufacturer's identification code and matrix, comprising:
One keyboard controller, this keyboard controller have at least one LED pin and at least one output inlet;
At least one LED current-limiting apparatus, respectively one of this LED current-limiting apparatus end all is connected to a voltage source;
At least one LED light, respectively the positive terminal of this LED light is connected to the corresponding respectively other end of this LED current-limiting apparatus respectively, and respectively the negative pole end of this LED light is connected to corresponding respectively this LED pin respectively; And
At least one jumper places respectively this output inlet respectively and respectively between this LED pin;
Wherein, formed each the group jumper of all LED pins that each output inlet is corresponding with it has only a conducting, and individual other each group is unaffected each other.
14. keyboard controller as claimed in claim 13 includes the multiple selection framework of manufacturer's identification code and matrix, wherein those cross-over connection linear systems are positioned at an EEPROM.
15. keyboard controller as claimed in claim 14 includes the multiple selection framework of manufacturer's identification code and matrix, wherein this EEPROM stores a customer demand data, in order to be input to this keyboard controller, to replenish its not enough data.
16. keyboard controller as claimed in claim 13 includes the multiple selection framework of manufacturer's identification code and matrix, wherein those cross-over connection linear systems are positioned at a non-volatility memorizer.
17. keyboard controller as claimed in claim 16 includes the multiple selection framework of manufacturer's identification code and matrix, wherein this non-volatility memorizer stores a customer demand data, in order to be input to this keyboard controller, to replenish its not enough data.
18. keyboard controller as claimed in claim 13 includes the multiple selection framework of manufacturer's identification code and matrix, wherein those LED current-limiting apparatus can be a resistance, an inductance, a lead three and select one.
19. a keyboard controller includes the multiple selection method of manufacturer's identification code and matrix, comprising:
Make this keyboard controller be in an initial condition;
Normally read sequential by a plurality of outputs inlet of this keyboard controller according to the SCLK of a list type EEPROM and SDATA pin and obtain one first data;
Judge whether this first data value is a meaningless numerical value, words if not, represent that this keyboard controller is externally connected to this list type EEPROM, read in this keyboard controller to finish selection operation with being about to its inner complete data, if words, represent that this keyboard controller outside does not add any this list type EEPROM, also be about to carry out the selected operation of an inside information; And
Carry out the selected operation of this inside information, utilize a plurality of jumpers to set and via the accurate position input of a plurality of LED pins of this keyboard controller, selection obtains sets combination to a jumper of a built-in chart that should keyboard controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001219286A CN1173479C (en) | 2000-07-25 | 2000-07-25 | Multiple selecting structure and method for keyboard controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001219286A CN1173479C (en) | 2000-07-25 | 2000-07-25 | Multiple selecting structure and method for keyboard controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1335683A true CN1335683A (en) | 2002-02-13 |
| CN1173479C CN1173479C (en) | 2004-10-27 |
Family
ID=4589008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001219286A Expired - Fee Related CN1173479C (en) | 2000-07-25 | 2000-07-25 | Multiple selecting structure and method for keyboard controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1173479C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362566C (en) * | 2002-11-28 | 2008-01-16 | 华邦电子股份有限公司 | Keyboard scanning circuit and method |
| CN102332206A (en) * | 2010-07-13 | 2012-01-25 | 凌通科技股份有限公司 | Code selecting system for remote control chip emitting codes |
-
2000
- 2000-07-25 CN CNB001219286A patent/CN1173479C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362566C (en) * | 2002-11-28 | 2008-01-16 | 华邦电子股份有限公司 | Keyboard scanning circuit and method |
| CN102332206A (en) * | 2010-07-13 | 2012-01-25 | 凌通科技股份有限公司 | Code selecting system for remote control chip emitting codes |
| CN102332206B (en) * | 2010-07-13 | 2013-07-24 | 凌通科技股份有限公司 | Code selecting system for remote control chip emitting codes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1173479C (en) | 2004-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4646245A (en) | Modular installation for assembling and/or machining parts, with work stations including keyboard-display devices | |
| Apostolico et al. | Parallel construction of a suffix tree with applications | |
| Vogler | Bisimulation and action refinement | |
| US6260157B1 (en) | Patching of a read only memory | |
| CN1165349A (en) | Portable terminal device for IC card | |
| CN1106017C (en) | Improved main frame connection interface | |
| CN102608993A (en) | Network automation test method, cabinet and test host | |
| US4219875A (en) | Digital event input circuit for a computer based process control system | |
| CN1576873A (en) | Verification system for verifying authenticity of a battery and method thereof | |
| CN101630289A (en) | Memory controller, memory system, and control method for memory system | |
| CN100339829C (en) | Memory updating system for field device | |
| CN1173479C (en) | Multiple selecting structure and method for keyboard controller | |
| CN1302400A (en) | Microcontroller with configurable instruction set | |
| CN1441396A (en) | Display device | |
| CN103038655A (en) | Switch-state information aggregation | |
| FI74158C (en) | Switching device for giving control orders in a microcomputer system | |
| US20020024504A1 (en) | Keyboard control system containing manufacturer's identication code and multiple selection matrix | |
| CN88101362A (en) | Keep the system of Modular Communications System hardware-software compatibility | |
| CN112905381B (en) | Method, device, equipment and medium for acquiring stack frame information in call stack | |
| CN1208194A (en) | Patch device for program in embedded microprocessor system | |
| CN111402943A (en) | Method, system, storage medium and terminal for reducing area of read operation pump of non-flash memory | |
| CN1481507A (en) | System and method for pre-programming electronic device's memory | |
| CN1103463C (en) | Programmable working voltage converter for cpu and relevant chips | |
| CN100361391C (en) | Integrated circuit arrangement, and method for programming an integrated circuit arrangement | |
| CN1122215C (en) | Method for loading driver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| 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: 20041027 Termination date: 20190725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |