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:
Jun. 21, 2011
Filed:
Jul. 16, 2009
Yutaka Uematsu, Chiyoda-ku, JP;
Tatsuya Saito, Chiyoda-ku, JP;
Yoji Nishio, Chuo-ku, JP;
Yukitoshi Hirose, Chuo-ku, JP;
Yutaka Uematsu, Chiyoda-ku, JP;
Tatsuya Saito, Chiyoda-ku, JP;
Yoji Nishio, Chuo-ku, JP;
Yukitoshi Hirose, Chuo-ku, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
A semiconductor device or an information processing system comprises a plurality of circuit units, and a control unit for controlling a start timing of large-current operations executed by the respective circuit units within a predetermined period, where the large-current operation involves a relatively large current which flows in a power supply system, as compared with other operations. The control unit controls the start timing of the large-current operation from one circuit unit to another such that the waveform of a current flowing from the power supply system is shaped into the waveform of a half cycle of a sinusoidal wave when the circuit units execute large-current operations within the predetermined period.