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:
Aug. 20, 1996
Filed:
Mar. 02, 1994
Seiko Epson Corporation, Tokyo-to, JP;
Abstract
A computer system, according to an embodiment of the present invention comprises a host CPU, an image rendering device, a CRT image memory, a video subsystem, an alternative display converter, an alternative display memory, an LCD controller, a change-of-status (COS) detector, a power up/down controller, and a computer display screen. The COS detector monitors the host CPU, image rendering device, CRT image memory, looking for updates that would require a change in the image displayed on the computer display screen. The COS detector signals the power up/down controller to power-off and/or slow system clocks to the CRT image memory, the video subsystem, the alternative display converter, the alternative display memory, and the LCD controller when there is no change to be made in the image on the computer display screen. And conversely, the COS detector signals the power up/down controller to power-up and/or restore system clocks to full-speed for the CRT image memory, the video subsystem, the alternative display converter, the alternative display memory, and the LCD controller when a change (update) is to be made in the image on the computer display screen.