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. 29, 1995
Filed:
Dec. 11, 1992
Gideon Intrater, Ramat-Gan, IL;
Ohad Falik, Petach-Tivka, IL;
Aharon Ostrer, Hertzelia, IL;
Yair Baydatch, Ramat-Hasaron, IL;
Gadi Erlich, Kfar-Haim, IL;
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
Binary multiplication is performed with existing data processing apparatus to which only minor modifications are required. One operand and a partial product are stored in existing latches of a CPU. The second operand is stored in a shift register which is added to the CPU. The data in the shift register is shifted from the LSB to the MSB, with a '0' being loaded into the LSB. As the bits in the first operand are designated in sequence, the value of the partial product is increased by the value in the shift register if the designated bit is a '1'. After the sequencing has designated all the bits of the first operand, the partial product is taken to be the product of the multiplication.