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:
Aug. 24, 1999

Filed:

Oct. 21, 1996
Applicant:
Inventors:

Chang Soo Kim, San Jose, CA (US);

Le T Nguyen, Monte Sereno, CA (US);

Roney S Wong, Sunnyvale, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364757 ; 36476002 ; 36478603 ;
Abstract

A parallel multiplier for multiplying a multiplicand and multiplier with large bit lengths as well as simultaneously multiplying several multiplicands and multipliers with smaller bit lengths is disclosed. The parallel multiplier receives an N-bit multiplicand operand, an M-bit multiplier operand, and a data length signal. The parallel multiplier calculates an N+M bit product of an N-bit multiplicand from the multiplicand operand and an M-bit multiplier from the multiplier operand when the data length signal selects a first bit length. Furthermore, the parallel multiplier simultaneously calculates an (N+M)/2 bit first product of an N/2 bit first multiplicand from the multiplicand operand and an M/2 bit first multiplier from the multiplier operand, and an (N+M)/2 bit second product of an N/2 bit second multiplicand from the multiplicand operand and an M/2 bit second multiplier from the multiplier operand when the data length signal selects a second bit length.


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