Light source control in optical pointing device

Details Light source control in optical pointing device Light source control in optical pointing device

2008-07-15

2008-07-15

Epps, Georgia Y. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C235S455000, C345S157000, C345S165000, C345S166000

Reexamination Certificate

active

07399953

ABSTRACT:
An optical pointing device includes a light source configured to respond to a drive current to provide at least partially coherent light to illuminate an imaging surface to thereby generate reflected images. A navigation sensor is configured to generate digital images based on the reflected images, and generate movement data based on the digital images that are indicative of relative motion between the imaging surface and the optical pointing device. A light source driver is configured to provide the drive current to the light source. A drive current controller is configured to calibrate the drive current based on selected digital images.

REFERENCES:
patent: 3873179 (1975-03-01), Burke
patent: 4794384 (1988-12-01), Jackson
patent: 4807166 (1989-02-01), Zalenski
patent: 5045843 (1991-09-01), Hansen
patent: 5600116 (1997-02-01), Seo et al.
patent: 5612529 (1997-03-01), Coleman
patent: 5786804 (1998-07-01), Gordon
patent: 5907152 (1999-05-01), Dandliker et al.
patent: 6172354 (2001-01-01), Adan et al.
patent: 6281882 (2001-08-01), Gordon et al.
patent: 6303924 (2001-10-01), Adan et al.
patent: 6455840 (2002-09-01), Oliver et al.
patent: 6661410 (2003-12-01), Casebolt et al.
patent: 7064311 (2006-06-01), Jung et al.
patent: 2002/0075526 (2002-06-01), Mori
patent: 2003/0039294 (2003-02-01), Ueki et al.
patent: 2003/0061524 (2003-03-01), Casebolt et al.
patent: 2003/0103037 (2003-06-01), Rotzoll
patent: 2004/0129861 (2004-07-01), Jung et al.
patent: 2004/0160411 (2004-08-01), Yang
patent: 2005/0012022 (2005-01-01), Lin
patent: 2005/0068300 (2005-03-01), Wang et al.
patent: 2005/0078085 (2005-04-01), Casebolt et al.
patent: 2005/0162391 (2005-07-01), Lin
patent: 2005/0168444 (2005-08-01), Lin et al.
patent: 2005/0195169 (2005-09-01), Lin
patent: 2006/0132443 (2006-06-01), Chien Wu
patent: 2006/0169021 (2006-08-01), Silverstein
patent: 2006/0187209 (2006-08-01), Lai et al.
patent: 1607544 (2005-04-01), None
patent: 1096778 (2003-04-01), None
patent: 1531386 (2005-05-01), None
patent: 2397123 (2004-07-01), None
patent: 2408325 (2005-05-01), None
patent: 2421305 (2006-06-01), None
patent: WO 2005/006168 (2005-01-01), None
Search Report dated Aug. 31, 2006 for Patent Application in Great Britain No. 0609028.6.
Search Report dated Feb. 26, 2007 for Patent Application in Great Britain No. 0609028.6.

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