Capacitive touch entry apparatus using drive pulse signals of di

Details Capacitive touch entry apparatus using drive pulse signals of di Capacitive touch entry apparatus using drive pulse signals of di

1990-04-27

1996-06-11

Treat, William M.

Boots, shoes, and leggings

364DIG1, H03K 17955, H03K 1796

Patent

active

055262945

ABSTRACT:
A key input device includes first and second key input electrodes being close to each other and being accessible by a finger of an operator. First and second signal input electrodes oppose the first and second key input electrodes respectively. A first signal is applied to the first signal input electrode. A second signal is applied to the second signal input electrode. The first signal and the second signal have different phases.

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