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.

Date of Patent:
Jan. 01, 2008

Filed:

Sep. 27, 2001
Applicants:

Kaoru Awaka, Ibaraki, JP;

Hiroshi Takahashi, Ibaraki, JP;

Shigetoshi Muramatsu, Ibaraki, JP;

Akihiro Takegama, Ibaraki, JP;

Inventors:

Kaoru Awaka, Ibaraki, JP;

Hiroshi Takahashi, Ibaraki, JP;

Shigetoshi Muramatsu, Ibaraki, JP;

Akihiro Takegama, Ibaraki, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A multiply-accumulate module () includes a multiply-accumulate core (), which includes a plurality of Booth encoder cells (). The multiply-accumulate core () also includes a plurality of Booth decoder cells () connected to at least one of the Booth encoder cells () and a plurality of Wallace tree cells () connected to at least one of the Booth decoder cells (). Moreover, at least one first Wallace tree cell () or at least one first Booth decoder cell (), or any combination thereof, includes a first plurality of transistors, and at least one second Wallace tree cell () or at least one second Booth decoder cell (), or any combination thereof, includes a second plurality of transistors. In addition, at least one critical path of the multiply-accumulate module () includes the at least one first cell and a width of at least one of the first plurality of transistors is greater than a width of at least one of the second plurality of transistors.


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