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.

Date of Patent:
Jan. 30, 1990

Filed:

Apr. 02, 1987
Applicant:
Inventors:

Hiroshi Kobayashi, Itami, JP;

Takeshi Shibasaki, Itami, JP;

Shinji Suda, Itami, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340734 ; 340750 ; 340799 ;
Abstract

A display controller including a first ROM, a second ROM, a RAM, and an output circuit. The first ROM stores fixed data to be displayed on a fixed data area of a display screen. The RAM stores variable data to be displayed on a variable data area of the display screen and receives controlling addresses from the first ROM. The second ROM, under control of data from a preselected one of the first ROM or the RAM, outputs the display pattern data to be displayed on the display device. The output circuit latches the display pattern data and sends it to the display device at a predetermined timing.


Find Patent Forward Citations

Kobayashi, Hiroshi. (1990). Display controller (U.S. Patent No. 4897637). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4897637

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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