04661850 is referenced by 64 patents and cites 6 patents.

A progressively scanned video signal is encoded into temporal sum and difference components for transmission. The sum signal is temporally filtered, decimated and time expended to be compatible with interlaced receivers. The difference signal, also temporally filtered, decimated and time expanded, is conveyed via single or separate channels with the sum signal to a progressive scan receiver for reconstitution of the original progressive scan signal. Modified quadrature amplitude modulation is used to convey the sum and difference signals in a common channel.

Title
Progressive scan television system with interlaced inter-field sum and difference components
Application Number
6/824902
Publication Number
4661850
Application Date
January 31, 1986
Publication Date
April 28, 1987
Inventor
Glenn A Reitmeier
West Trenton
NJ, US
Christopher H Strolle
Glenside
PA, US
Agent
R G Coalter
P M Emanuel
P J Rasmussen
Assignee
RCA Corporation
NJ, US
IPC
H04N 11/14
H04N 11/06
H04N 7/01
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