06466036 is referenced by 434 patents.

Pulse circuits for measuring the capacitance to ground of a plate may be used in control equipment to provide an indication of the proximity of a person or object to be sensed. Pulse circuits are disclosed that are made from sets of three or more electrical switching elements arranged so that each of the switching elements has one side electrically connected to either a supply voltage or to an electrical ground. These arrangements are compatible with existing integrated circuit fabrication technology. In addition, the circuitry can be configured as a proximity sensing switch that requires only a two wire connection to a host apparatus.

Title
Charge transfer capacitance measurement circuit
Application Number
9/390869
Publication Number
6466036 (B1)
Application Date
September 7, 1999
Publication Date
October 15, 2002
Inventor
Harald Philipp
7 Cirrus Gardens, Hamble Hampshire SO31 4RH
US
Agent
David Kiewit
US
IPC
G01R 27/26
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