Image data processing system
Patent 4893114 Issued on January 9, 1990. Estimated Expiration Date: 
June 28, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 28, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesColor display having selectable off-on and background color control Digital shade control for color CRT background and cursors Video display controller Character and pattern display system Graphics display terminal and method of storing alphanumeric data therein Patent #: 4757309 InventorAssigneeApplicationNo. 212131 filed on 06/28/1988US Classes:345/22, Color display345/471Alteration of stored fontExaminersPrimary: Brigance, Gerald L.Attorney, Agent or FirmInternational ClassG09G 001/16Foreign Application Priority Data1985-06-10 JPAbstractAn image data processing system operates so that foreground color codes are held in a foreground register, background color codes are held in a background register, and the foreground or background color codes are selectively output by a selector according to the patterns of the pattern data or character fonts to be extended to color codes. Accordingly the pattern data or character font patterns can be extended quickly to the foreground or background color codes.Also, to extend the same pattern data repetitively and quickly to the foreground or background color codes, a rotator or selector is used to enable the pattern data to be used repetitively, and according to the output value thereof the foreground or background register is selected. | |
