Optical reflectance proximity sensor

Details Optical reflectance proximity sensor Optical reflectance proximity sensor

2007-09-21

2009-02-03

Tarcza, Thomas H (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

C356S004100, C356S005010, C356S005100

Reexamination Certificate

active

07486386

ABSTRACT:
A method for calibrating an optical reflectance proximity sensor and then measuring proximity in a repeating cycle or on demand, the sensor including one or more wavelength transmitting diodes, one or more wavelength receiving diodes, an ambient correction circuit, and a comparator circuit, and further teaching steps for powering on the sensor, canceling the ambient signal during a calibration period, transmitting wavelengths to and receiving reflectance from an object in the path of the transmitted wavelengths, and measuring a reflectance pulse width and comparing the value to a preset value to determine proximity.

REFERENCES:
patent: 3621268 (1971-11-01), Friedrich et al.
patent: 3716833 (1973-02-01), Roth
patent: 3859647 (1975-01-01), Ross
patent: 3937952 (1976-02-01), Ripley et al.
patent: 4068222 (1978-01-01), Treviranus
patent: 4207466 (1980-06-01), Drage et al.
patent: 4306147 (1981-12-01), Fukuyama et al.
patent: 4479053 (1984-10-01), Johnston
patent: 4659922 (1987-04-01), Duncan
patent: 4701610 (1987-10-01), Hoogenboom
patent: 4723073 (1988-02-01), Amikura et al.
patent: 4855590 (1989-08-01), Bures et al.
patent: 4896606 (1990-01-01), De Coi
patent: 5025516 (1991-06-01), Wilson
patent: 5103085 (1992-04-01), Zimmerman
patent: 5428439 (1995-06-01), Parker et al.
patent: 5486690 (1996-01-01), Ake
patent: 5585626 (1996-12-01), Beck et al.
patent: 5672863 (1997-09-01), Nicks et al.
patent: 5707160 (1998-01-01), Bowen
patent: 5760390 (1998-06-01), Vezzalini et al.
patent: 5837997 (1998-11-01), Beck et al.
patent: 5864591 (1999-01-01), Holcombe
patent: 5991040 (1999-11-01), Doemens et al.
patent: 6107938 (2000-08-01), Du et al.
patent: 6218967 (2001-04-01), Maula
patent: 6240283 (2001-05-01), Holcombe
patent: 6828546 (2004-12-01), Reime
patent: 6965327 (2005-11-01), Reime
patent: 2005/0118975 (2005-06-01), Ismail
patent: 2006/0161871 (2006-07-01), Hotelling et al.
patent: 2008/0036743 (2008-02-01), Westerman et al.
patent: WO97/14344 (1997-04-01), None
Panasonic; “Panasonic Ideas For Life” General Catalogue, Mar. 2005, 51 pgs.
Bonen et al., “A Novel Electro-Optical Proximity Sensor For Robotics: Calibration And Active Sensing”, IEEE Trans. On Robotics And Automation, vol. 13, No. 3, Jun. 1997, 23 pgs.
Avago Technologies, “General Application Guide For Proximity Sensor”, Application Note 5281, Jun. 17, 2006, 23 pgs.
Avago Technologies, “HSDL-9100, Surface Mount Proximity Sensor”, Data Sheet, Mar. 29, 2006, 12 pgs.
Solarbotics, “Proximity Sensors”, Beam Pieces, Apr. 21, 2006, Printed From Internet Oct. 30, 2008, 3 pgs.
Techno-Stuff.com, “Dual IR Proximity Detector”, DIRPD-T, May 6, 2006, Printed From Internet Oct. 30, 2008, 4 pgs.
Banner Engineering, Corp., “Lesson 4C, Sensing In The Diffuse And Divergent Proximity Modes”, Jan. 10, 2004, Printed from Internet Oct. 30, 2008, 3 pgs.

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