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:
Nov. 12, 1991
Filed:
Dec. 03, 1987
Toshihiko Kawai, Kanagawa, JP;
Takaaki Tobishima, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A low resolution to high resolution display system arranged such that a low resolution video signal from a personal computer is written in a memory plane in response to an address based on a clock signal produced from the personal computer side, a switching circuit is provided in a video signal path of a high resolution display apparatus for switching between the memory plane and the video signal produced by the high resolution display apparatus and the memory plane is read by an address based on the clock signal of the display apparatus produced during a display window period, whereby the video signal read from the memory plane is supplied through the switching circuit to the video signal path of the display apparatus.