G - Physics – 09 – G
Patent
G - Physics
09
G
375/18
G09G 1/00 (2006.01) G09G 5/28 (2006.01)
Patent
CA 1200630
SMOOTMING CIRCUIT FOR DISPLAY APPARATUS ABSTRACT OF THE DISCLOSURE A smoothing circuit for a display apparatus in which a desired character composed of selected standard width dots of a matrix of orthogonally disposed rows and columns thereof is displayed on æ screen during scanning of the latter in horizontal and vertical directions, comprises a memory for storing data R(tn-1),R(tn), R(tn+1), D(tn-1), D(tn) and D(tn+1), in which D represents data selectively indicating the existence and absence of a dot in a row of the matrix being presently displayed, (tn) represents a time interval corresponding to the horizontal scanning of a space being considered in a respective row and which has a width equal to that of a standard dot, (tn-1) and (tn+1) are equivalent time intervals immediately preceding and following, respectively, the time interval (tn) and R represents data selectively indicating the existence and absence of a dot in a row of the matrix which is immediately adjacent the row being presently displayed, and a logical operation circuit responsive to the data stored in the memory for performing logical operations thereon which satisfy predetermined conditions 50 as to selectively alter the data D(tn) in correspondence with the addition or removal, in the space being considered, of a small dot having a width one-third of the standard width, the predeterminted conditions satisfied by a logical operation.
414361
Sahara Hiroshi
Uenishi Toshifumi
Watanabe Toshiaki
Yamaoka Katsumi
Gowling Lafleur Henderson Llp
Nippon Telegraph And Telephone Corporation
Sony Corporation
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