Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2006-05-30
2006-05-30
Liang, Regina (Department: 2674)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S213000
Reexamination Certificate
active
07053889
ABSTRACT:
A circuit for detecting an active video area for a display device, a method for detecting an active video area for a display device, and a coordinate mapping method using the detected active video area are provided. The circuit for detecting an active video area for a display device includes a comparison signal generator, a horizontal starting point detecting unit, a horizontal ending point detecting unit, a vertical starting point detecting unit, and a vertical ending point detecting unit. The method for mapping coordinates of a video source to coordinates of a display device includes (a) selecting a predetermined area of the video source, (b) generating a predetermined reference pattern, (c) transmitting R, G, and B signals in which the reference pattern is embedded, to the display device, (d) comparing the R, G, and B signals with a predetermined black level and outputting a comparison signal which indicates the existence of a video signal, (e) detecting a horizontal starting point, a horizontal ending point, a vertical starting point, and a vertical ending point using the comparison signal, and (f) converting the selected predetermined area of the video source into the counterpart area of the display device, using a predetermined mapping relationship and the detected horizontal starting point, the detected horizontal ending point, the detected vertical starting point, and the detected vertical ending point. Coordinates of the video source are thereby mapped to coordinates of the display device.
REFERENCES:
patent: 5329211 (1994-07-01), Sasaki et al.
patent: 5416533 (1995-05-01), Kageyama
patent: 5987624 (1999-11-01), Eglit
patent: 6556191 (2003-04-01), Ouchi
patent: 6683585 (2004-01-01), Nakano
patent: 2002/0109669 (2002-08-01), Ha
patent: 2004/0061705 (2004-04-01), Yoon et al.
patent: 2004/0150648 (2004-08-01), Kim et al.
patent: 2001-34245 (2001-02-01), None
patent: 2001165981 (2001-06-01), None
patent: 2001290457 (2001-10-01), None
Kang Suk chan
Kim Young kyu
Liang Regina
Mills & Onello LLP
Samsung Electronics Co,. Ltd.
LandOfFree
Circuit for detecting active video area for display device,... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Circuit for detecting active video area for display device,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for detecting active video area for display device,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3635061