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:
Jan. 11, 2000
Filed:
Dec. 23, 1998
Applicant:
Inventors:
Yong Wang, Mountain View, CA (US);
Shree Kant, Sunnyvale, CA (US);
Assignee:
Sun Microsystems, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365205 ; 36523005 ;
Abstract
A read system for a multi-ported register file includes a segmented bit line coupled to a global bit line. Each local bit line segment is coupled to a sub-set of the register files in a column to reduce device load and interconnect wire load. The local bit line segments are each coupled to the global bit line by a local sense amplifier. Both the local bit line segments and global bit line are precharged prior to sensing a bit so that the local sense amplifiers do not require output pull-up transistors.