H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/36
H04N 11/02 (2006.01) H04N 7/08 (2006.01) H04N 11/24 (2006.01)
Patent
CA 1314096
RCA 83,073 ABSTRACT COMPATIBLE WIDE SCREEN TELEVISION SYSTEM WITH IMAGE COMPRESSION/EXPANSION A compressor compresses the edges of a wide screen image to provide a compressed wide screen video signal which may be displayed on a conventional 4:3 aspect ratio receiver with the compressed edge portions largely hidden from view because of receiver overscan. Complementary edge expansion restores the compressed signal to its original form for display by a wide screen receiver. The degrees of compression applied to the left and right edges of the wide screen images and the widths of the compressed regions are varied to reduce the appearance of edge distortion in the compressed signal when displayed on a standard aspect ratio receiver and to reduce the appearance of loss of edge resolution in the expanded signal when displayed on a wide screen receiver.
538315
Dischert Robert Adams
Jose David Lee
Craig Wilson And Company
Rca Licensing Corporation
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