04573080 is referenced by 18 patents and cites 6 patents.

A video input signal is stored in a memory and read twice during a line-interval to provide a processed video output signal having a doubled line rate for display on a display device having a doubled horizontal sweep rate thereby providing a progressively scanned image having reduced visibility of line structure. The last address written in memory is used to control the starting time of the second memory read operation. This reduces the tendency of visible artifacts to occur in cases where the video input signal is "non-standard" in the sense that the ratio of the color subcarrier frequency with respect to the line rate is such that the number of color subcarrier cycles per line may be subject to variation.

Title
Progressive scan television receiver with adaptive memory addressing
Application Number
6/625780
Publication Number
4573080
Application Date
June 28, 1984
Publication Date
February 25, 1986
Inventor
Kenneth W Maze
Indianapolis
IN, US
Agent
R G Coalter
P M Emanuel
P J Rasmussen
Assignee
RCA Corporation
NJ, US
IPC
H04N 5/91
H04N 5/68
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