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:
Sep. 03, 2002
Filed:
Feb. 26, 2001
Applicant:
Inventors:
Mitsue Takahashi, Hyogo, JP;
Hiroaki Tanizaki, Hyogo, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
A read amplifier circuit includes an equalize start circuit. Based on a preamp enable signal PAE and an equalize signal IOEQ, the equalize start circuit generates an equalize start signal EQ for starting equalization at the timing when the preamp enable signal PAE is activated. Simultaneously with activation of a preamplifier by the preamp enable signal PAE, a pair of read lines GIOR and /GIOR is cut off from the preamplifier, and a P channel MOS transistor starts equalization of the pair of read lines GIOR and /GIOR. In this way, it is possible to start equalization of the paired read lines at the same time that the output signal is supplied to the preamplifier.