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:
Feb. 07, 2006
Filed:
Jul. 09, 2001
Robert Rogenmoser, Santa Clara, CA (US);
Lief O'donnell, Sunnyvale, CA (US);
Robert Rogenmoser, Santa Clara, CA (US);
Lief O'Donnell, Sunnyvale, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
An apparatus for a multiplexor circuit includes a passgate circuit coupled to receive input signals and corresponding select signals comprising a subset of the input signals and select signals received by the multiplexor. The apparatus also includes a default circuit coupled to receive the select signals and coupled to an output node of the passgate circuit. If none of the select signals is asserted, the default circuit supplies a default voltage on the output node. Other passgate circuits and default circuits may be included coupled to other subsets of the input signals and select signals, and an output circuit may be included with inputs coupled to the output nodes of the passgate circuits. The default voltage may represent a logical value which allows the value from another passgate circuit to control the output of the output circuit.