Method and device for blanking a page of image overlay informati

Details Method and device for blanking a page of image overlay informati Method and device for blanking a page of image overlay informati

1996-08-02

2000-08-29

Powell, Mark R.

Computer graphics processing and selective visual display system

Computer graphics processing

Animation

345435, G06T 1300

Patent

active

061115894

ABSTRACT:
Picture information intended for being displayed on a picture screen contains not only the main information such as film pictures, but also overlay information such as graphic information or subtitles. The overlay information is transmitted separately from the main information and is encoded in packets of digital symbols in which a page of overlay information is represented by a group of packets. All the packets include identification information sufficient for a receiver to identify whether all packets of a group have. This makes it possible to ascertain whether a page of overlay information has been received completely, which allows incomplete pages or combinations of parts of pages from being displayed on the picture screen. This is advantageous in the case of interruptions of picture signal reception, such as a disturbed TV signal, or when a video disc or tape is used in trick modes such as Fast Forward.

REFERENCES:
patent: 5459819 (1995-10-01), Watkins et al.
patent: 5459826 (1995-10-01), Archibald
patent: 5553211 (1996-09-01), Uotani
patent: 5594850 (1997-01-01), Noyama et al.
patent: 5608852 (1997-03-01), Hashimoto et al.
patent: 5754186 (1998-05-01), Tam et al.

Affiliated with

Also associated with

Rating

Method and device for blanking a page of image overlay informati does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for blanking a page of image overlay informati, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for blanking a page of image overlay informati will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1254474