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:
Mar. 09, 1999
Filed:
Aug. 12, 1996
Hirotsugu Kojima, Foster City, CA (US);
Avadhani Shridhar, Sunnyvale, CA (US);
Hitachi America, Ltd., , NY (US);
Abstract
The present invention contemplates an improved multiplier circuit and method for reducing power consumption by reducing the number of transitions to the input of the multiplier. Each input to the multiplier is fixed for as long as possible by reordering the sequence of the multiplications to take advantage of duplicate input values. The intermediate results of each multiplication are stored in separate accumulators to obtain the final resultants. Power consumption is further reduced through a reduction in the number of transitions on the data bus linking the multiplier and the data register file containing the accumulators.