EP 0073916 A2 19830316 - Circuit for individually controlling the color of the font and background of a character displayed on a color tv receiver or monitor.
Title (en)
Circuit for individually controlling the color of the font and background of a character displayed on a color tv receiver or monitor.
Title (de)
Steuereinrichtung zur individuellen Kontrolle der Farben der Zeichenkontur und des Hintergrundes eines auf einem Farbfernsehempfänger oder einem Monitor angezeigten Zeichens.
Title (fr)
Circuit de commande individuelle de la couleur d'un caractère et son fond affiché sur un récepteur de télévision à couleurs ou un moniteur.
Publication
Application
Priority
- US 29206781 A 19810812
- US 29207481 A 19810812
Abstract (en)
An 8-bit character byte is fetched from a random access memory (30) and applied to a character generator (28). An associated 8-bit attribute bit is also fetched from the random access memory (30) and applied to the inputs of a multiplexer (32). Four of the attribute bits designate the color of the font of a character to be displayed on a TV set (14). The remaining four attribute bits designate the background color of the displayed character. The eight attribute bits are selectively gated to the outputs of the multiplexer (32) under the control of character serial dots from the parallel-to-serial converter (34) as red (R), green (G) and blue (B) digital color signals which are applied to a composite video signal generator (38) which produces a composite video color signal. The colors of the font and background of each individual character displayed on the TV set (14) thus are independently controlled by the font and background color bits.
IPC 1-7
IPC 8 full level
G09G 5/02 (2006.01)
CPC (source: EP)
G09G 5/024 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0073916 A2 19830316; EP 0073916 A3 19840606; EP 0073916 B1 19880525; EP 0073916 B2 19920129; DE 3278546 D1 19880630; HK 4290 A 19900125; SG 62089 G 19900126
DOCDB simple family (application)
EP 82106645 A 19820723; DE 3278546 T 19820723; HK 4290 A 19900118; SG 62089 A 19890909