Method for fine tuned automatic zoom

Details Method for fine tuned automatic zoom Method for fine tuned 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

11027244

ABSTRACT:
A system and method for fine tuned automatic zooming “in” and “out” a video content stream to adjust for Ratio Mismatches and changes in Pillar Bar size is disclosed. The present invention is particularly applicable to 4:3 video content delivered in a 16:9 video content stream. After the Initial Zoom In, the present invention repeatedly analyses the pixels in the Truncated Display for Pillar Bars and determines (i) if the Pillar Bars are still present, (ii) if the Pillar Bars have changed width/size, and (iii) if the amount of the Initial Zoom In (or subsequent zoom prior to an instant fine tune iteration) was correct (within a margin of error), and automatically fine tunes the zooming of the video content stream accordingly, e.g., gradual zooming in, gradual zooming out, or a full zoom out for a full pixel presentation if the Pillar Bars are no longer present.

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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