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. 07, 2001
Filed:
Oct. 29, 1999
Isamu Hayashi, Hyogo, JP;
Harufusa Kondoh, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In an internal clock signal generation circuit, a plurality of internal clock signals of different phases are generated based on an external clock signal. The internal clock signals are synchronized with the external clock signal by a PPL circuit. The plurality of internal clock signals are respectively supplied to a plurality of internal circuit blocks. Since the phases of the generated internal clock signals are different the phases of the internal clock signals arriving at the internal circuit blocks can be matched even if delays of the signals between the internal clock signal generation circuit and the plurality of internal circuit blocks are different. Thus, clock skews between the plurality of internal clock signals can be reduced and the phase of the internal clock signal and the phase of the external clock signal can be synchronized.