Two-dimensional position sensor

Details Two-dimensional position sensor Two-dimensional position sensor

2008-04-02

2010-10-05

Dole, Timothy J (Department: 2831)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S660000, C324S662000, C345S174000

Reexamination Certificate

active

07808255

ABSTRACT:
A two-dimensional position sensor is formed by drive electrodes (52) and sense electrodes (62, 64, 66) both extending in the x-direction and interleaved in the y-direction. The sense electrodes comprise several groups, two of which co-extend in the x-direction over each different portions of extent in the x-direction. The drive and sense electrodes are additionally arranged to capacitively couple with each other. In use, drive signals are applied to the drive electrodes and then the resultant sense signals received from the sense electrodes measured. The position of a touch or stylus actuation on the sensor is determined in the x- and y-directions as follows. In the x-direction, the position is determined by an interpolation between sense signals obtained from co-extending pairs of sense electrodes, and in the y-direction by interpolation between sense signals obtained from different sequences of drive signals applied to the drive electrodes.

REFERENCES:
patent: 4659874 (1987-04-01), Landmeier
patent: 4733222 (1988-03-01), Evans
patent: 4879461 (1989-11-01), Philipp
patent: 5053715 (1991-10-01), Andermo
patent: 5730165 (1998-03-01), Philipp
patent: 6222522 (2001-04-01), Mathews et al.
patent: 6288707 (2001-09-01), Philipp
patent: 6297811 (2001-10-01), Kent et al.
patent: 6452514 (2002-09-01), Philipp
patent: 6535200 (2003-03-01), Philipp
patent: 6730863 (2004-05-01), Gerpheide
patent: 7148704 (2006-12-01), Philipp
patent: 2007/0008299 (2007-01-01), Hristov
patent: 2007/0062739 (2007-03-01), Philipp
patent: 2007/0279395 (2007-12-01), Philipp
patent: 2008/0246496 (2008-10-01), Hristov et al.
patent: 202007005237 (2007-08-01), None
patent: 2428306 (2007-01-01), None
patent: 2439614 (2008-01-01), None
patent: WO-2008122759 (2008-10-01), None
PCT International Search Report and Opinion in corresponding PCT/GB2008/001155; mailed Jul. 21, 2008.
UK Intellectual Property Office, “Combined Search and Examination Report under Sections 17 and 18(3)” in corresponding application GB0806001.4; mailed Aug. 4, 2008.

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