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:
Apr. 20, 1993
Filed:
Aug. 21, 1991
Applicant:
Inventors:
Jinshu Son, Kanagawa, JP;
Nobuaki Miyakawa, Kanagawa, JP;
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ; G01R / ; H03F / ;
U.S. Cl.
CPC ...
365203 ; 36518901 ; 36518905 ; 365205 ; 365206 ; 307530 ;
Abstract
The high speed readout circuit has an amplifier unit and an operating point setting unit and reads data from a memory sense line at high speed. The circuit further includes a unit for setting an operating point of the amplifier unit by short-circuiting the input and output terminals of the amplifier in response to a first control signal and precharging the sense line up to the operating point, and a unit for setting the sense line at a voltage slightly deviating the operating point in response to a second control signal by making use of a Miller capacitance and sensing the variations from the preset voltage during a reading process.