The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 1987
Filed:
Mar. 26, 1985
Shigekazu Takashima, Yokohama, JP;
Tsutomu Sakamoto, Yokosuka, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A memory control apparatus for a CRT controller in which the same data from a data input circuit is loaded into a plurality of addresses of a buffer memory for storing drawing data, the address of the buffer memory being automatically updated. X- and Y- address generators update address data in response to pulses from X- and Y-axis pulse generators. A microprocessor supplies to a register the width of the X and Y thickness of an address to be updated, coordinate data representing a write start point to the address generators, and the drawing data to be written to a data input circuit. The memory can then be updated in units specified by the X and Y thickness of the picture element.