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:
Sep. 30, 1980
Filed:
Nov. 29, 1978
Yasuo Ikeda, Tokyo, JP;
Taito Corporation, Tokyo, JP;
Abstract
A code conversion circuit especially suited for, but not limited to, use with a video display apparatus of a type in which the screen is arbitrarily divided into plural domains defined by horizontal scan lines, X.sub.i, and vertical section lines, Y.sub.j. A random access memory (RAM) used in the system stores local codes defining the video symbols to be displayed in the various domains on the screen. The code conversion circuit permits selective modification of the addresses applied to the RAM so that a picture element normally displayed in domain X.sub.i Y.sub.j can, in turn, be displayed in a domain X.sub.m Y.sub.n. Means are further provided for inverting the order in which the local codes read from the RAM are applied to the video display. Hence, the code conversion circuit is capable of rotating an image to be displayed about the center point of the display screen.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile