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:
Oct. 30, 2007
Filed:
Aug. 11, 2006
Applicants:
Haiming Yu, San Jose, CA (US);
Wei Yee Koay, Penang, MY;
Inventors:
Haiming Yu, San Jose, CA (US);
Wei Yee Koay, Penang, MY;
Assignee:
Altera Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
Dual port memory blocks that have a reduced layout area are provided. The write drivers and sense amplifiers are shared between the dual ports to reduce the number of write drivers and sense amplifiers to save layout area. The write drivers for the two ports are used to write into all of the first port's bitlines. The sense amplifiers for the two ports are used to read from all of the second port's bitlines. A memory block can to support true dual port (TDP) and simple dual port (SDP) operation using substantially less write drivers and sense amplifiers.