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:
Aug. 07, 2012
Filed:
Oct. 03, 2009
James B. Piket, Gilbert, AZ (US);
Keith L. Owens, Crystal Lake, IL (US);
Christopher W. Springfield, Chandler, AZ (US);
James B. Piket, Gilbert, AZ (US);
Keith L. Owens, Crystal Lake, IL (US);
Christopher W. Springfield, Chandler, AZ (US);
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Abstract
An echo canceler circuit () and method attenuates at least post-echo canceler uplink data () to produce attenuated uplink data () in response to uplink echo return loss based attenuation data (). The echo canceler circuit () includes an echo return loss based attenuation data generator () and at least an uplink data attenuator (). The echo return loss based attenuation data generator () produces the uplink echo return loss based attenuation data () in response to echo return loss data (). The echo return loss data () is based on at least one of: attenuated downlink data (), pre-echo canceler uplink data (), and/or amplifier gain data (). The uplink data attenuator () attenuates the post-echo canceler uplink data () to produce attenuated uplink data () based on the uplink echo return loss based attenuation data ().