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:
Oct. 29, 2002
Filed:
Apr. 30, 2001
Jun Setogawa, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In a semiconductor memory device, its clock buffer includes a first comparator having a pair of P channel MOS transistors whose gates receive a clock signal and a complementary clock signal, respectively, and a second comparator having a pair of N channel MOS transistors whose gates receive the clock signal and the complementary clock signal, respectively. An internal signal is generated in response to an output signal of the comparator having a shorter response time which starts correspondingly to the cross point where the clock signal and the complementary clock signal cross each other. Even if the level of the cross point is scattered, a scatter in the response time of the internal signal which starts correspondingly to the cross point becomes small.