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. 03, 1998
Filed:
May. 23, 1995
Yukihiro Yoshida, Ikoma, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A power control apparatus for controlling power used by a digital electronic device having a plurality of processing devices for example, a CPU and a plurality of I/O controllers as well as a memory for storing power control instructions. The CPU is configured to output power control signals via one of the I/O controllers based on the signals or power control instructions. A microcomputer is provided to which the power control signals are input and which are configured to control power and clock frequency supplied to each one of the plurality of processing devices based on the power control signals. The microcomputer detects the input of the power control signal, sets power control bits for the plurality of processing devices into a data register based on the detection, and outputs via the I/O port the contents of the data register to control the power to each of the plurality of processing devices.