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:
Feb. 14, 1995
Filed:
Apr. 22, 1991
Randall M Chung, Laguna Nigel, CA (US);
Shaun Astarabadi, Irvine, CA (US);
Western Digital Corporation, Irvine, CA (US);
Abstract
A system controller manages communication of data between a microprocessor, a memory and input/output controllers in a computer. A power management controller is operative upon occurrence of microprocessor inactivity indications to disable power to the microprocessor without disabling power to the input/output controllers. Operations of the power management controller is sequenced by a plurality of programmable registers, which are programmed by signals received either from a main data bus connected to the system controller, and other units, such as input/output controllers, a keyboard controller and from a memory, or a local data bus connected between at least one of the units and the system controller.