Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Reexamination Certificate
2008-01-29
2008-01-29
Liang, Regina (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
C345S166000
Reexamination Certificate
active
10761855
ABSTRACT:
A data input device for use with a tracking surface having light-scattering properties. The device comprises a single laser configured to project a light beam onto the tracking surface. A portion of the light beam striking the tracking surface reflects back into a cavity of the laser and thereby alters at least one characteristic of the projected light beam. A detector associated with the laser detects the altered characteristic of the light beam projected by the laser. A controller responsive to the detector determines the relative distance between the device and the tracking surface as a function of the altered characteristic of the projected light beam detected by the detector. Another device comprises a laser projecting a light beam oriented substantially perpendicular to the tracking surface when the device is operating in a tracking mode.
REFERENCES:
patent: 4364035 (1982-12-01), Kirsch
patent: 4477890 (1984-10-01), Mooney et al.
patent: 4719455 (1988-01-01), Louis
patent: 5274361 (1993-12-01), Snow
patent: 5382785 (1995-01-01), Rink
patent: 5453644 (1995-09-01), Yap et al.
patent: 5574480 (1996-11-01), Pranger et al.
patent: 6057540 (2000-05-01), Gordon et al.
patent: 6448977 (2002-09-01), Braun et al.
patent: 6707027 (2004-03-01), Liess et al.
patent: 6741335 (2004-05-01), Kinrot et al.
patent: 2003/0103037 (2003-06-01), Rotzoll
patent: 2005/0035947 (2005-02-01), Lutian
patent: 2005/0134556 (2005-06-01), Van Wiggeren et al.
Ohtsubo et al., “Velocity Measurement of a Diffuse Object by Using Time-Varying Speckles,” Optical and Quantum Electronics, 1976, pp. 523-529, Chapman and Hall Ltd., Great Britain.
Optical Mouse Saves Space, The Online Photonics Resource, http://optics.org, Dec. 8, 2003, 2 pp., United States.
Prototype Device, The Online Photonics Resource, http://optics.org, Dec. 8, 2003, 1 pg., United States.
Optical Scrolling, The Online Photonics Resource, http://optics.org, Dec. 8, 2003, 1 pg., United States.
Wang, et al., Self-Mixing Interference Inside a Single-Mode Diode Laser for Optical Sensing Applications, Journal Of Lightwave Technology, Sep. 1994, vol. 12, No. 9, London, England.
Liang Regina
Microsoft Corporation
Senniger Powers
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