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:
Dec. 14, 1999
Filed:
Sep. 05, 1997
Jacob A Kirschenbaum, Hadera, IL;
Itzhak Barak, Tel Aviv, IL;
Yacov Efrat, Omer, IL;
Shao Wei Pan, Lake Zurich, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A multiply-multiply-accumulate (MMA) system (10) efficiently evaluates matrix products X=F*C. Matrix C is dissected into submatrices A and B taking advantage of symmetry in C. LOG unit (14) converts B, A, and F to LOG values B', A' and F'. These are summed in K parallel calculating units CU's (18) and converted back to Normal domain as P=F*B*A in ALOG units (22) and sent to accumulators ACU's (24). The ACU's (24) accumulate the results. An output buffer (26) combines the results. The B', A' values (32,34) are held in a cache memory (20) and the LOG sums are performed in two steps with intermediate storage.