Computer graphics processing and selective visual display system – Data responsive crt display control – Data responsive deflection control
Reexamination Certificate
2003-05-19
2009-08-25
Liang, Regina (Department: 2629)
Computer graphics processing and selective visual display system
Data responsive crt display control
Data responsive deflection control
Reexamination Certificate
active
07580007
ABSTRACT:
A scan assembly of an image generator sweeps an image beam in a first dimension at a first rate and bi-directionally in a second dimension at a slower rate. Sweeping the beam bi-directionally in the vertical dimension (generally the dimension of the lower sweep rate) can reduce the scanning power by eliminating the flyback period, and, where the scan assembly includes a mechanical reflector, can reduce the error in the beam position without a feedback loop by reducing the number of harmonics in the vertical sweep function. Furthermore, because the image beam is “on” longer due to the elimination of the flyback period, the scanned image is often brighter for a given beam intensity. The scan assembly may also sweep the image beam non-linearly in the vertical dimension, and this sweep may be bi-directional or uni-directional. Sweeping the beam non-linearly can also reduce the error in the beam position by reducing the number of harmonics in the vertical sweep function.
REFERENCES:
patent: 2543066 (1951-02-01), Salinger
patent: 3471641 (1969-10-01), Baker et al.
patent: 4975691 (1990-12-01), Lee
patent: 5216236 (1993-06-01), Blais
patent: 5659327 (1997-08-01), Furness et al.
patent: 5936764 (1999-08-01), Kobayashi
patent: 5955724 (1999-09-01), Livingston
patent: 6038051 (2000-03-01), Suzuki et al.
patent: 6140979 (2000-10-01), Gerhard et al.
patent: 6204829 (2001-03-01), Tidwell
patent: 2001/0024326 (2001-09-01), Nakamura et al.
patent: 2001/0034077 (2001-10-01), Wine et al.
patent: 2002/0163701 (2002-11-01), Plesko
patent: 2002/0163702 (2002-11-01), Hori et al.
patent: 1020000073553 (2000-12-01), None
International Search Report for PCT/US03/15860 dated Oct. 8, 2003.
Bovee Jim
Brown Margaret
Freeman Mark
Lewis John R.
Sprague Randy
Abdin Shaheda A
Liang Regina
Microvision Inc.
Wills Kevin D.
LandOfFree
Apparatus and method for bi-directionally sweeping an image... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for bi-directionally sweeping an image..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for bi-directionally sweeping an image... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4071956