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. 15, 1989
Filed:
Feb. 28, 1986
Applicant:
Inventor:
Robert Murdoch, Sacramento, CA (US);
Assignee:
Data General Corporation, Westboro, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G11C / ; H03K / ;
U.S. Cl.
CPC ...
365 49 ; 364900 ; 307358 ;
Abstract
An improved content addressable memory cell which employs a structure which utilizes a single transistor to discharge the hit line, and is driven by a self-blocking driver which glitchlessly changes state without the use of virtual nodes. Also disclosed is an alternative content addressable memory cell which can be written into in two distinct fashions, one of which permits the content of the cell to be changed without requiring the entire data word with which the cell is associated to be rewritten.