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. 10, 2013
Filed:
Jun. 17, 2009
Kok Yoong Foo, Simpang Ampat, MY;
Yan Jiong Boo, Bayan Lepas, MY;
Geok Sun Chong, Bayan Lepas, MY;
Boon Jin Ang, Butterworth, MY;
Kar Keng Chua, Juru, MY;
Kok Yoong Foo, Simpang Ampat, MY;
Yan Jiong Boo, Bayan Lepas, MY;
Geok Sun Chong, Bayan Lepas, MY;
Boon Jin Ang, Butterworth, MY;
Kar Keng Chua, Juru, MY;
Altera Corporation, San Jose, CA (US);
Abstract
Circuits for a multiplier with a built-in accumulator and a method of performing multiplication with accumulation are disclosed. An embodiment of the disclosed circuits includes a logic circuit coupled to receive two inputs. The logic circuit is capable of generating a plurality of value bits from the inputs received. In one embodiment, the logic circuit includes a Booth recoder circuit that generates a plurality of partial products. A block of adders is coupled to logic circuit to receive and sum up the value bits. An adder adds the summation result from the block of adders to a previous accumulated value to generate intermediate sum and carry values. An accumulator, coupled to the adder, receives and stores the intermediate values.