05305017 is referenced by 560 patents and cites 14 patents.

Methods and apparatus for data input. Devices are provided in accordance with this invention which utilize capacitive coupling of an object to the device to sense the object's position. The devices are comprised of a plurality of electrode strips which form virtual electrodes. The virtual electrodes are selectively connected to form virtual dipole electrodes which are responsive to the object's position.

Title
Methods and apparatus for data input
Application Number
394566
Publication Number
5305017
Application Date
July 13, 1992
Publication Date
April 19, 1994
Inventor
George E Gerpheide
3481 S. Monte Verde Dr., Salt Lake City, 84109
UT, US
Agent
Thorpe North & Western
IPC
G09G 3/02
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