G - Physics – 11 – B
Patent
G - Physics
11
B
352/10.41
G11B 27/02 (2006.01) H04N 5/76 (2006.01) H04N 5/217 (2006.01)
Patent
CA 1169548
PHN 9841 46 ABSTRACT: Television circuit comprising a signal correc- tion circuit which is active on signal recording and dis- play, respectively, to obtain an optimum picture on display, and comprising a memory, memory-location (RC) containing correction information of which correspond to picture sub- regions (RC), each having their scanning lines (H1-H16), these subregions (RC) having been arranged in a matrix of rows and columns. According to the invention the memory comprisies further memory locations (HOC) namely a first, further memory location (HOC1-HOC7) for each column of sub- regions, absolute correction information being present in each first memory location for all subregions in the column and relative difference information being present in each memory location (R1C1-R19C7) corresponding to a subregion in the column, each relative difference information per subregion furnishing a correction information for each scanning line in the subregion which information is valid with respect to the preceding scanning line.
385355
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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