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1. 发明授权

US07218250B2 Method and apparatus for keyboard control with programmable debounce and jog 有权
标题翻译：可编程去抖动和点动键盘控制的方法和装置
公开(公告)号：US07218250B2
公开(公告)日：2007-05-15
申请号：US10936872
申请日：2004-09-09
申请人： Edward Robert Laliberte , William Todd Shelton
发明人： Edward Robert Laliberte , William Todd Shelton
IPC分类号： H03M11/00 , H03K17/94
CPC分类号： H03K5/1254 , H03M11/20
摘要： A method for providing debounce and jog control for a keyboard includes loading a first electronic storage register with a value indicative of a debounce period for the keyboard and loading a second electronic storage register with a value indicative of a jog period for the keyboard. The keyboard is scanned for a pressed key, and a signal indicative of the pressed key is debounced. The method further includes providing electronic signals for key status and jog and asserting an interrupt in accordance with the indicated debounce period and the indicated jog period while the debounced signal indicates the pressed key is down. Keys of the keyboard other than the pressed key are prevented from being scanned until the debounced signal indicates that the pressed key has come up.
摘要翻译：一种用于为键盘提供去抖动和点动控制的方法包括：加载第一电子存储寄存器，其具有指示键盘的去抖动周期的值，并且以指示键盘的点动周期的值加载第二电子存储寄存器。键盘被扫描一个按下的键，并且表示按下的键的信号被去抖动。该方法进一步包括提供按键状态的电子信号，并且在去抖动信号指示按下的键向下时，根据所指示的去抖动周期和所指示的点动周期来提供中断。防止按键以外的键盘的键被扫描，直到去抖动的信号表示按下的键已经出现。

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