Invention Grant
US08593428B1 Radial track-pad system and method 失效
径向跟踪系统及方法

Radial track-pad system and method
Abstract:
Systems and methods for track-pad input are disclosed. In one embodiment, a track-pad device includes a center sensor and a plurality of radial sensors. The center sensor senses electrical characteristic change at a center of the track-pad device. The plurality of radial sensors sense electrical characteristic changes in the respective vicinity of each of the plurality of radial sensors. The plurality of radial sensors can be configured in concentric rings about the center sensor.
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