TW200614045A - Keyboard matrix method and apparatus - Google Patents

Keyboard matrix method and apparatus

Info

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
Application number
TW093131649A
Other languages
Chinese (zh)
Other versions
TWI257565B (en
Inventor
Ji-Pei Wang
Su-Wu Lo
Original Assignee
Ene Technology Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ene Technology Inc filed Critical Ene Technology Inc
Priority to TW93131649A priority Critical patent/TWI257565B/en
Publication of TW200614045A publication Critical patent/TW200614045A/en
Application granted granted Critical
Publication of TWI257565B publication Critical patent/TWI257565B/en

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.
TW93131649A 2004-10-19 2004-10-19 Method and device of keyboard matrix TWI257565B (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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

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