| 摘要 |
PROBLEM TO BE SOLVED: To effectively use the video RAM area of an on-screen display device which displays characters by coding modification information while taking the combination of modifications into consideration when a line or characters of a plurality of lines are modified. SOLUTION: Desired character data are stored in the video RAM 200 and a line attribute code 2 obtained by coding while a condition by which modification indications can not be executed at the same time, like the combination of a modification indication showing a space and a modification indication showing an emphasized character etc., in a space display line is excluded, is stored in a buffer 50; when a line to be displayed begins to be displayed, the line attribute code 2 read out of the buffer 5090 is decoded by a decoding part 700 into a line attribute code 3 as original line modification information to generate an on-screen output signal. COPYRIGHT: (C)2006,JPO&NCIPI
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