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. 25, 2001
Filed:
Dec. 08, 2000
Applicant:
Inventors:
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
A read circuit for semiconductor storage cells (,) including dual read bitlines (,) driven by the cell to full 'zero' signals and 'weak one' signals comprises a read head circuit (,) which includes an inverter (,) in one of the bitlines (,). The inverter serves to turn a ‘weak one’ signal to a full ‘zero’ signal. A bit select circuit is integrated into the read head circuit (,) and connects the output of the inverter and the other one of the bitlines (,) through bit select switches (,) to the single line output (XT,) of the read head circuit (,).