发明名称 Keypad structure
摘要 A keypad structure comprises a plurality of dome switches. Each of the plurality of dome switches provides a first tactile feedback to a user when pressed. At least one vibratory element is electrically connected to the dome switches to actuate when one of the plurality of dome switches is pressed. The at least one vibratory element provides a second tactile feedback to the user.
申请公布号 US8319671(B2) 申请公布日期 2012.11.27
申请号 US20090609502 申请日期 2009.10.30
申请人 CHEN CHAO;RESEARCH IN MOTION LIMITED 发明人 CHEN CHAO
分类号 H03M11/00 主分类号 H03M11/00
代理机构 代理人
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