Abstract: A television picture wiping arrangement is disclosed, in which the picture is notionally divided into a plurality of portions and a storage means, such as a matrix store, is provided having a storage address corresponding to each portion. Switching information relating to a sequence of picture content replacement for the portions, usually one portion at a time, is loaded into the storage means, and the information is scanned to generate a switching signal which effects the desired replacement sequence.
Type:
Grant
Filed:
November 29, 1976
Date of Patent:
July 18, 1978
Assignee:
Prowest Electronics Limited
Inventors:
Richard Norman Sanders, William James Crossley