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:
Sep. 05, 1989
Filed:
Jul. 17, 1987
Applicant:
Inventors:
Tamotsu Nishiyama, Osaka, JP;
Shigeo Kuninobu, Osaka, JP;
Naofumi Takagi, Kyoto, JP;
Takashi Taniguchi, Osaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
364754 ; 364760 ;
Abstract
A high speed processor including a multiplier is disclosed. The multiplier includes a multiplier recorder circuit which may record multipliers in groups of digits, and intermediate partial product generators which generate partial products from the recorded digits and a multiplicand. Addition/subtraction is then carried out on the intermediate partial products generated by the partial product generators. The processor may operate using signed digit expressions.