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:
Jul. 21, 2009
Filed:
Mar. 23, 2005
Tat Mun Lui, Selangor, MY;
Bee Yee NG, Pahang, MY;
Jun Pin Tan, Kuala Lampur, MY;
Boon Jin Ang, Penang, MY;
Tat Mun Lui, Selangor, MY;
Bee Yee Ng, Pahang, MY;
Jun Pin Tan, Kuala Lampur, MY;
Boon Jin Ang, Penang, MY;
Altera Corporation, San Jose, CA (US);
Abstract
In circuitry such as a programmable logic device ('PLD'), each of several multiplier blocks includes partial products generation circuitry and partial products addition circuitry. Two such multiplier blocks can be used together to provide multiply-accumulate ('MAC') capability. The partial products addition circuitry in one of the paired blocks is used to add each successive product produced by the other paired block to a previous accumulation of products in the first-mentioned paired block. Provisions are also made for accumulating any overflow from operation of the partial products addition circuitry in the first-mentioned paired block.