发明名称 TOUCHPAD
摘要 <p>A touchpad with two or more concentrically arranged curved touch sensitive areas. The curved touch sensitive areas are distinguished from one another by level variations and may from a rippled or undulating surface that allow a user to identify the individual curved touch sensitive areas blindly.</p>
申请公布号 WO2009155952(A1) 申请公布日期 2009.12.30
申请号 WO2008EP05300 申请日期 2008.06.27
申请人 NOKIA CORPORATION;CHEN, PEARL 发明人 CHEN, PEARL
分类号 G06F3/033;G06F3/0354;G06F3/048;G06F3/0488 主分类号 G06F3/033
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