发明名称 Track wheel with reduced space requirements
摘要 An input generating device for use in a hand held electronic device having a housing includes a core formed in a planar and semicircular in shape, forming a peripheral edge extending around said core and a track slidably engaged with the peripheral side edge. A curved portion of the peripheral edge extends outwardly from the housing allowing access thereto by the user. A first input is generated by sliding movement of the flexible track relative to the core. First input detection means, such as a turns encoder switch detects the sliding movement of the track. The core is depressibly mounted within the housing, generating a second input when the core is depressed. A second input detection means, such as a tactile contact switch detects depression of the core.
申请公布号 US7423628(B2) 申请公布日期 2008.09.09
申请号 US20040788973 申请日期 2004.02.27
申请人 RESEARCH IN MOTION LIMITED 发明人 CHYC PAUL;GREEN STEVEN
分类号 G09G5/00;A63F9/24;G06F1/16;G06F3/033;H04M1/247;H04M1/725 主分类号 G09G5/00
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