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. 17, 2002
Filed:
Sep. 28, 1999
Daryush Shamlou, Laguna Niguel, CA (US);
Guang-Ming Yin, Foothill Ranch, CA (US);
Yihai Xiang, Irvine, CA (US);
Wim Cops, Newport Beach, CA (US);
Bo Zhang, Las Flores, CA (US);
Conexant Systems, Inc., Newport Beach, CA (US);
Abstract
A multiple channel signal processing circuit receives an input associated with a first channel and an input associated with a second channel. The respective inputs are sampled and processed by the circuit, which generates a sampled output signal for the first channel and a sampled output signal for the second channel. The circuit employs a shared active circuit component, such as an operational amplifier, to alternately process samples associated with the first and second channels. A network of switches are controlled by a multiphase clock signal such that the active circuit component processes samples associated with only one channel at a time; as the input for a first channel is being sampled, a previous sample for the second channel is processed. An alternate circuit embodiment may be utilized to reduce the amount of crosstalk between the channels.