Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2005-01-04
2005-01-04
Tran, Henry N. (Department: 2774)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S904000, C348S192000, C348S466000, C714S043000, C714S048000, C714S746000, C714S754000
Reexamination Certificate
active
06839055
ABSTRACT:
A system for providing an error indication of video data received from a first link of a data interface between a computer system video controller and a display system and for providing the error indication to the video controller from the display system via a second link of the data interface. Such a system can be utilized to determine if an error condition exits in the video data path between the video controller and display system. In one example, the data interface conforms to the Digital Visual Interface (DVI) specification. A diagnostic routine of an operating system can be utilized to generate a set of test video data and compare the generated error indication with a standard error indication to determined an error condition. Also, such a system allows a remote system to request a test of the video data path. In one embodiment, the error indication is provided to the video controller from the display system by inserting the error indication into a display information data structure such as, e.g., an Extended Display Identification Data (EDID) structure.
REFERENCES:
patent: 4670772 (1987-06-01), Bolger
patent: 4680599 (1987-07-01), Wertz et al.
patent: 4775857 (1988-10-01), Staggs
patent: 5457580 (1995-10-01), Yoo
patent: 5491791 (1996-02-01), Glowny et al.
patent: 5512961 (1996-04-01), Cappels, Sr.
patent: 5594736 (1997-01-01), Tatsumi et al.
patent: 5703629 (1997-12-01), Mermelstein et al.
patent: 5737032 (1998-04-01), Stenzel et al.
patent: 5778139 (1998-07-01), Kim
patent: 5805882 (1998-09-01), Cooper et al.
patent: 5875202 (1999-02-01), Venters et al.
patent: 5943092 (1999-08-01), Chuang et al.
patent: 5958080 (1999-09-01), Kang
patent: 6057812 (2000-05-01), Arai et al.
patent: 6057860 (2000-05-01), Hoffert et al.
patent: 6089459 (2000-07-01), Eisele et al.
patent: 6219039 (2001-04-01), Chang et al.
patent: 6219451 (2001-04-01), Hunt et al.
patent: 6281929 (2001-08-01), Fimoff
patent: 6323828 (2001-11-01), Perez
patent: 6337682 (2002-01-01), Hwang
patent: 6400377 (2002-06-01), Hiraka et al.
patent: 6513088 (2003-01-01), Arai et al.
patent: 20010050679 (2001-12-01), Shigeta
patent: 20020000995 (2002-01-01), Sawada et al.
Darrell Hunt and Ronald Shaw;Method And Apparatus For Counter Based Liquid Crystal Display Panel Identification For A Computer; U.S. Appl. No.: 09/221,915; filed Dec. 28, 1998.
Jack Joseph;Multimedia Monitor Testing Apparatus And Method; U.S. Appl. No.:09/181,489; filed Oct. 28,1998.
Luke Chang and Collin Cooke;A Compact PC Video Subsystem Tester; U.S. Appl. No.:09/237,770; filed Jan. 26, 1999.
Luke L. Chang and Joe E. Goodart;Dual-Input Monitor Identification Scheme; U.S. Appl. No. 09/491,072; filed Jan. 25, 2000.
Digital Display Working Group;Digital Visual Interface DVI: Revision 1.0; Apr. 2, 1999; 76 pages.
VESA®; Extended Display Identification Data (EDID™) Standard: Version 3; Nov. 13, 1997; 80 pages.
Baker & Botts L.L.P.
Dell Products L.P.
Tran Henry N.
LandOfFree
Video data error detection does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Video data error detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video data error detection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3414571