Sensor device, and sensor system and electronic device using...

Details Sensor device, and sensor system and electronic device using... Sensor device, and sensor system and electronic device using...

2008-09-22

2011-10-18

Nghiem, Michael (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Orientation or position

C702S057000, C324S661000

Reexamination Certificate

active

08041534

ABSTRACT:
A sensor device which detects a positional relationship between an first member and second member, includes a signal source generating an electrical signal, a first electrode receiving the electrical signal and storing an electrical charge at a first part on the first member, a second electrode inducing an electrical charge at the second part on the second member, a third electrode inducing an electrical charge at the third part on the second member, a fourth electrode inducing an electrical charge at the fourth part on the first member, a reference electrode disposed at a fifth part on the second member to be connected to a reference voltage point, a fifth electrode inducing an electrical charge at the sixth part on the first member, and a differential amplifier amplifying a voltage difference between the fourth electrode and the fifth electrode and outputting a difference signal.

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patent: 2003-043078 (2003-02-01), None
patent: 2004/059343 (2004-07-01), None

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