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:
Aug. 26, 1997
Filed:
Aug. 31, 1995
Timothy Don Davis, Arlington, TX (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
A multiplier which uses Booth recoding to multiply large word length operands. The multiplier can be divided into three functional modules: 1) operand loading module, 2) Booth partial product calculation and accumulation module, and 3) accumulator shift function module which builds the final 512 bit product. Each of the three stages is clocked independently of the others. The clock signals used to control the data processing operations and flow of data through the registers and adders are gated so that those registers which are needed for the stage of the multiplication operation being executed are clocked, while the other registers are not enabled.