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:
May. 20, 1997
Filed:
Nov. 30, 1995
Toyokatsu Nakajima, Hyogo, JP;
Mitsubishi Electric Semiconductor Software Co., Ltd., Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A microcomputer comprising a clock circuit which selects a pulse signal as a system clock of the microcomputer from among a plurality of pulse signals and a power source impedance controlling circuit which controls an impedance between a power input terminal and the units of the microcomputer based on the frequency of the pulse signal selected by the clock circuit to provide the electric power to the units of the microcomputer. The power source impedance controlling circuit controls the impedance such that the power source impedance is made lower as the frequency of the selected pulse signal is higher.