System and method for automatic zoom

Details System and method for automatic zoom System and method for automatic zoom

2007-08-28

2007-08-28

Hsia, Sherrie (Department: 2622)

Television

Basic receiver with additional function

For magnification of part of image

C348S581000, C348S913000

Reexamination Certificate

active

11025164

ABSTRACT:
A system and method for automatically zooming “in” and “out” a video content stream to adjust for Ratio Mismatches is disclosed. The present invention is particularly applicable to 4:3 video content delivered in a 16:9 video content stream. The present invention scans for the presence of Pillar Bars. When Pillar Bars are detected by the present invention, after waiting a pre-determined period to confirm the presence and size of the Pillar Bars, the present invention initiates a slow stretching the video content stream to eliminate the Pillar Bars. When the video content stream changes back to without Pillar Bars, the present invention initiates a slow zooming out to a full pixel representation of the video content stream.

REFERENCES:
patent: 5136398 (1992-08-01), Rodriguez-Cavazos et al.
patent: 5161002 (1992-11-01), Rodriguez-Cavazos et al.
patent: 6366706 (2002-04-01), Weitbruch

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