TW200614045A - Keyboard matrix method and apparatus - Google Patents
Keyboard matrix method and apparatusInfo
- Publication number
- TW200614045A TW200614045A TW093131649A TW93131649A TW200614045A TW 200614045 A TW200614045 A TW 200614045A TW 093131649 A TW093131649 A TW 093131649A TW 93131649 A TW93131649 A TW 93131649A TW 200614045 A TW200614045 A TW 200614045A
- Authority
- TW
- Taiwan
- Prior art keywords
- unit
- matrix
- keyboard matrix
- keyboard
- electrically connects
- Prior art date
Links
Abstract
The invention presents a keyboard matrix method and apparatus. The method includes a hardware that actively detects the signal of input unit for pressing a keyboard matrix to determine whether to start scanning the keyboard matrix, and to send an interrupt signal of the keyboard matrix to a microprocessor unit and clear the number stored in a register unit of the keyboard matrix and obtain the address of next keyboard matrix input unit. The invention also provides a device of keyboard matrix. The device includes an interrupt generating unit, which electrically connects the microprocessor unit; a querying matrix unit, which electrically connects the interrupt generating unit; a driver matrix unit, which electrically connects the querying matrix unit and the keyboard matrix input unit; a matrix address generating unit, which electrically connects the driver matrix unit. The invented apparatus is used to reduce the firmware load required in the prior art and decrease the operating time so as to improve efficiency and reduce the firmware complexity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93131649A TWI257565B (en) | 2004-10-19 | 2004-10-19 | Method and device of keyboard matrix |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93131649A TWI257565B (en) | 2004-10-19 | 2004-10-19 | Method and device of keyboard matrix |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200614045A true TW200614045A (en) | 2006-05-01 |
TWI257565B TWI257565B (en) | 2006-07-01 |
Family
ID=37764191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW93131649A TWI257565B (en) | 2004-10-19 | 2004-10-19 | Method and device of keyboard matrix |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI257565B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI777118B (en) * | 2020-01-06 | 2022-09-11 | 聯陽半導體股份有限公司 | Restart control device and restart control method |
-
2004
- 2004-10-19 TW TW93131649A patent/TWI257565B/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI777118B (en) * | 2020-01-06 | 2022-09-11 | 聯陽半導體股份有限公司 | Restart control device and restart control method |
US11467847B2 (en) | 2020-01-06 | 2022-10-11 | Ite Tech. Inc. | Restart control device and restart control method |
Also Published As
Publication number | Publication date |
---|---|
TWI257565B (en) | 2006-07-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2793101A3 (en) | Method and apparatus for providing tactile feedback sensations | |
EP2244169A3 (en) | Mobile terminal capable of providing multi-haptic effect and method of controlling the mobile terminal | |
TW200630814A (en) | Integrated input and display device for a mobile computer | |
EP1795996A3 (en) | Display apparatus and user interface menu displaying method | |
EP1840716A3 (en) | Display data size adjustment apparatus and method for portable terminal | |
EP1773054A3 (en) | Method for performing video communication service and mobile communication terminal therefor | |
TW200638216A (en) | Double screen device of portable computer and operation method thereof | |
TW200943151A (en) | Capacitive touch control device and method of controlling the same | |
EP1811495A3 (en) | Resonance generator | |
TW200514008A (en) | Operational amplifier, line driver, and liquid crystal display device | |
EP2463769A3 (en) | Method for controlling operation of touch panel and portable terminal supporting the same | |
TW200630951A (en) | Display panels and display device using same | |
EP1748345A3 (en) | Portable computer | |
TW200715252A (en) | Display device and driving apparatus thereof | |
EP1777950A3 (en) | Display apparatus | |
EP1883004A3 (en) | Apparatus and method for controlling operation of portable terminal having multimedia function | |
EP1939849A3 (en) | Image display device for displaying small-sized image and method thereof | |
TW200627350A (en) | Timing control circuit with personal identifying function and applied thereof | |
TW200614045A (en) | Keyboard matrix method and apparatus | |
US20080094258A1 (en) | Electronic system with user-operable keys and capability of prompting keys being touched | |
TW200513941A (en) | Image display system, image display device and image display method | |
EP2160025A3 (en) | Information processing apparatus and operation setting method | |
TW200733059A (en) | Method of using voice recognition measure to input characters and its hand-held apparatus | |
TW200723189A (en) | Display device capable of quickly switching signal sources and method thereof | |
MY178854A (en) | A device for controlling display of content |