| 摘要 |
A mobile electronic device (100/600) has a thumbwheel subassembly (116) having measurable rotatable and depressible input movements, for example, rolling the thumbwheel (118) up, rolling the thumbwheel (118) down and pushing the thumbwheel (118) inwards. Pushing the thumbwheel (118) with a measurable component of downward force may result in inadvertent rolling of the thumbwheel (118) down. Software or hardware may be used to cancel the inadvertent rolling of the thumbwheel (118) down when the timing of the push and the roll are too close. A thumbwheel assembly (116) may be oriented in a mobile electronic device (500/800) so that the direction (514/814) of depressible input movement of the thumbwheel (118) is substantially aligned with the direction (216/616) of the push by a user's thumb or finger that includes a measurable component of downward force. <IMAGE>
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