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:
May. 17, 2011
Filed:
Mar. 03, 2008
Babette Van Antwerpen, Mountain View, CA (US);
Babette Van Antwerpen, Mountain View, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A chain of multiplexers disposed in a logic block is recognized as a selector and a group of logic gates disposed in the logic block and supplying signals to the select pins of the selector is recognized as a decoder, the selector and the decoder together define a n:1 multiplexer. To achieve this, a group of logic gates supplying signals to the select pins of the selector is identified within the logic block. A truth table defining the logic relationship between the signals applied to the group of logic gates and data signals received by the chain of muxes is generated. The chain of muxes is replaced with a selector upon determination that the rows in the truth table are disjoint. After replacing the chain of muxes with a selector, the process is repeated in a similar manner to replace the remaining logic blocks with a decoder.