Detecting and selecting between progressive scanned and...

Details Detecting and selecting between progressive scanned and... Detecting and selecting between progressive scanned and...

2005-02-16

2008-08-26

Natnael, Paulos M (Department: 2622)

Television

Basic receiver with additional function

Multimode

Reexamination Certificate

active

07417688

ABSTRACT:
An apparatus for automatically detecting and selecting between progressively scanned and interlaced signals has an input video signal11applied to a progressive frame detector12, a de-interlacer14and a compensating delay13which has the same latency as the de-interlacer14. The progressive frame detector determines if the input video signal is an interlaced signal or a progressively scanned signal. If it is determined that the applied signal is interlaced, then output from the de-interlacer14is selected. If, on the other hand, it is determined that the applied signal is progressively scanned, then the input video signal is selected after passing through the compensating delay. In both instances, the selected output is a progressive video signal19which may be transmitted if the device is used in an encoder or applied to a display device if the apparatus is used in a decoder.

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