Title: A method and system for keyboard scan
Application Number: 200610114619 Application Date: 2006.11.17
Publication Number: 1953334 Publication Date: 2007.04.25
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03M11/20;H03M11/00;G06F3/023
Applicant(s) Name: Beijing Vimicro Corporation Address:
Inventor(s) Name: Deng Naili
Attorney & Agent: huangzhi hua
Abstract:
    The invention relates to a method for scanning keyboard, which comprises that: A, based on preset sequence, scanning keyboard one time in one scanning period, and finding the state of button according to scanned button value; B, based on said state, the stored state of last time without vibration, and stored last change state of button, finding the present state without vibration. The invention can avoid occupying lots of MCU resource when finding button state. The invention also provides a relative system.
Time: 14