Surface shape recognition sensor device

Details Surface shape recognition sensor device Surface shape recognition sensor device

2006-06-13

2006-06-13

Chawan, Sheela (Department: 2623)

Image analysis

Applications

Personnel identification

C702S104000, C702S130000

Reexamination Certificate

active

07062075

ABSTRACT:
A calibration mode signal line to which sensor cells are commonly connected is arranged. In a calibration mode, a calibration mode signal is supplied to the sensor cells through the calibration mode signal line to designate calibration. In each sensor cell, when the calibration mode signal is being supplied from the calibration mode signal line, and the sensor cell is selected by the decoder, calibration operation of adjusting the detection sensitivity of a sensor circuit is executed using a calibration circuit.

REFERENCES:
patent: 4532508 (1985-07-01), Ruell
patent: 5940525 (1999-08-01), Itsumi
patent: 6049620 (2000-04-01), Dickinson et al.
patent: 6633656 (2003-10-01), Picard
patent: 6672174 (2004-01-01), Deconde et al.
patent: 6759264 (2004-07-01), Chou et al.
patent: 6766040 (2004-07-01), Catalano et al.
patent: 6871242 (2005-03-01), Ho-Lung et al.
patent: 6901154 (2005-05-01), Dunn
patent: 1162564 (2001-12-01), None
patent: 57-67667 (1984-04-01), None
patent: 2000-28311 (2000-01-01), None
Marco Tartagni and Robert Guerrieri, A 390 dpi Live Fingerprint Imager Based on Feedback Capacitive Sensing Scheme, 1997 IEEE International Solid-State Circuits Conference, pp. 200-201 (1997).
P. Rey et al., “A High Density Capacitive Pressure Sensor Array for Fingerprint Sensor Application”, IEEE International Conference on Solid-State Sensors and Actuators, pp. 1453-1456 (1997).
D. Inglis et al., “A Robust, 1.8V 250uW Direct-Contact 500dpi Fingerprint Sensor”, ISSCC Digest of Technical Papers, Feb. 1998 pp. 284-285.

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