Dual mode television receiver for displaying wide screen and sta

Details Dual mode television receiver for displaying wide screen and sta Dual mode television receiver for displaying wide screen and sta

1985-08-30

1988-03-01

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358140, 358 12, 358180, H04N 1120, H04N 701

Patent

active

047290129

ABSTRACT:
A wide aspect ratio television system includes memories for storing and recovering a video input signal in response to read and write clock pulses, respectively. Write clock pulses are deleted to compress edge regions of a wide aspect ratio input signal and read clock pulses are deleted to restore the signal to its original aspect ratio. The pattern of deleted pulses is altered on a line-by-line basis to reduce visible artifacts of signal decimation. Dual mode receivers include provisions for controlling edge blanking, interpolation and the pattern of clock pulses deleted as a function of received signals. Wide and standard aspect ratio images are displayed without altering the width of the display raster.

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