Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2008-07-22
2008-07-22
Nguyen, Kevin M (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S692000, C345S693000
Reexamination Certificate
active
09088674
ABSTRACT:
A method and system providing boundary dispersion to pixel values displayed on a binary spatial light modulator to reduce temporal contouring artifacts. Pixel code values are offset from a nominal value when displayed on the SLM to disperse a large bit transition for a pulse width modulation (PWM) system. The offset value varies as a function of the pixel digital code, the pixel spatial location on the screen, and pixel temporal location in time. The set of offsets applied to pixels is varied over a repeating sequence of 2 displayed frames.
REFERENCES:
patent: 4742558 (1988-05-01), Ishibashi et al.
patent: 4992781 (1991-02-01), Iwasaki et al.
patent: 5029107 (1991-07-01), Lee
patent: 5053764 (1991-10-01), Barbier et al.
patent: 5196839 (1993-03-01), Johary et al.
patent: 5254979 (1993-10-01), Trevett et al.
patent: 5309551 (1994-05-01), Guttag et al.
patent: 5543819 (1996-08-01), Farwell et al.
patent: 5686939 (1997-11-01), Millward et al.
patent: 5731802 (1998-03-01), Aras et al.
patent: 5784055 (1998-07-01), Ngai
patent: 5812112 (1998-09-01), Helfferich
patent: 5821915 (1998-10-01), Graham et al.
patent: 5886682 (1999-03-01), Biggs
patent: 5917504 (1999-06-01), Yutaka et al.
patent: 5953002 (1999-09-01), Hirai et al.
patent: 6020869 (2000-02-01), Sasaki et al.
patent: 6084561 (2000-07-01), Kudo et al.
patent: 6094187 (2000-07-01), Jones et al.
patent: 6222515 (2001-04-01), Yamaguchi et al.
patent: 6226054 (2001-05-01), Morgan et al.
Hewlett Gregory J.
Morgan Daniel J.
VanKessel Peter F.
Brill Charles A.
Nguyen Kevin M
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
Wade James Brady III
LandOfFree
Boundary dispersion for artifact mitigation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Boundary dispersion for artifact mitigation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Boundary dispersion for artifact mitigation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3912976