Abstract A color character signal transmission system for a display control and a color display employed mainly in an electronic computer is disclosed. During an access time between the designation of an address in a character signal generator and the generation of a picture signal for a character to be displayed three time slots corresponding to the three primary colors, respectively, are serially provided for designating the color of the character. Each color is represented by the occurrence or non-occurrence of a pulse within a corresponding time slot. A synthesized color signal that contains color designating signals is transmitted through a first transmission path, while another synthesized signal containing the picture signal and horizontal and vertical synchronizing signals therefor is transmitted through a second transmission path.
Inventors
👤 Koichi Kanie
👤 Toshiaki Sudoh
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-25 17:26
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
246 words
In a color character signal transmission system including character signal generator means responsive to address designation for generating a corresponding character signal and a character synchronizing signal, character data memory means for providing at its read-out output an output signal containing a portion for designating an address in said character signal generator means and another portion for designating a color of a character corresponding to said character signal, and means responsive to said character signal and said another portion for color-displaying said character, wherein: the transmitting side comprises: means responsive to said another portion for generating a first synthesized signal of a combined color signal and said or reformed character synchronizing signal in access time between said address designation and color-display of said character, said combined color signal being time-serially arranged three-digit binary code designating the color of said character; means for generating a second synthesized signal of horizontal and vertical synchronizing signals and a picture signal reproduced from said character signal; and means for transmitting said first and second synthesized signals through two transmission paths, respectively; and wherein the receiving side comprises: means for regenerating said combined color signal and character synchronizing signal from the received first synthesized signal; means for regenerating said horizontal and vertical synchronizing signals and said picture signal from the received second synthesized signal; means responsive to the regenerated combined color signal and character synthronizing signal for generating three bit parallel binary code designating the color of the received picture signals;
Claim 2
Dependent Claim
246 words
In a color character signal transmission system including character signal generator means responsive to address designation for generating a corresponding character signal and a character synchronizing signal, character data memory means for providing at its read-out output an output signal containing a portion for designating an address in said character signal generator means and another portion for designating a color of a character corresponding to said character signal, and means responsive to said character signal and said another portion for color-displaying said character, wherein: the transmitting side comprises: means responsive to said another portion for generating a first synthesized signal of a combined color signal and said or reformed character synchronizing signal in access time between said address designation and color-display of said character, said combined color signal being time-serially arranged three-digit binary code designating the color of said character; means for generating a second synthesized signal of horizontal and vertical synchronizing signals and a picture signal reproduced from said character signal; and means for transmitting said first and second synthesized signals through two transmission paths, respectively; and wherein the receiving side comprises: means for regenerating said combined color signal and character synchronizing signal from the received first synthesized signal; means for regenerating said horizontal and vertical synchronizing signals and said picture signal from the received second synthesized signal; means responsive to the regenerated combined color signal and character synthronizing signal for generating three bit parallel binary code designating the color of the received picture signals;