Capacitive sensing user interfaces and implementation thereof

Details Capacitive sensing user interfaces and implementation thereof Capacitive sensing user interfaces and implementation thereof

2007-12-13

2011-12-06

Edwards, Jr., Timothy (Department: 2612)

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

C341S020000, C341S026000, C200S600000

Reexamination Certificate

active

08072356

ABSTRACT:
Methods and apparatus for determining the operating states of a plurality of capacitive sensing buttons in a capacitive sensing user interface are disclosed. The capacitive sensing buttons are sampled in a round-robin fashion such that the decay time samples for the buttons are acquired in an interleaved manner during each sampling cycle. Provisions are made to reduce the initialization delay, to reduce transient-induced errors, and to obtain the operating states based on updated decay data samples for the buttons.

REFERENCES:
patent: 4550221 (1985-10-01), Mabusth
patent: 4733222 (1988-03-01), Evans
patent: 4736191 (1988-04-01), Matzke et al.
patent: 5572205 (1996-11-01), Caldwell et al.
patent: 5594222 (1997-01-01), Caldwell
patent: 5730165 (1998-03-01), Philipp
patent: 5790107 (1998-08-01), Kasser et al.
patent: 5841078 (1998-11-01), Miller et al.
patent: 5861583 (1999-01-01), Schediwy et al.
patent: 5933102 (1999-08-01), Miller et al.
patent: 6452514 (2002-09-01), Philipp
patent: 7145552 (2006-12-01), Hollingsworth
patent: 7847614 (2010-12-01), Taylor
patent: 2004/0003949 (2004-01-01), Lin
patent: 2004/0246239 (2004-12-01), Knowles et al.
patent: WO 00/44018 (2000-07-01), None
QRG Ltd. “QMatrix(TM) Panel Design Guidelines.” Oct. 10, 2002. http://www.qprox.com/downloads/appnotes/an-kd01—qmatrix—design—rules.pdf.

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