Presence detection control knob

Details Presence detection control knob Presence detection control knob

2011-04-05

2011-04-05

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

C345S184000, C341S033000, C200S600000

Reexamination Certificate

active

07920122

ABSTRACT:
Control knob comprising a mobile part (3) capable of being actuated manually and linked with an electromechanical transducer (7). The knob also comprises a metal surface (15) arranged in the vicinity of the mobile part and means to measure the capacitance of the metal surface so that the presence of a finger in the vicinity of the mobile part can be detected.

REFERENCES:
patent: 5541622 (1996-07-01), Engle et al.
patent: 6040821 (2000-03-01), Franz et al.
patent: 6154201 (2000-11-01), Levin et al.
patent: 7369119 (2008-05-01), Davani et al.
patent: 3910977 (1990-10-01), None

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