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. 28, 2012
Filed:
Apr. 17, 2007
Applicant:
Iain Mcneill, Aptos, CA (US);
Inventor:
Iain McNeill, Aptos, CA (US);
Assignee:
Plantronics, Inc., Santa Cruz, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 9/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Systems and methods for a headset adapter circuit are disclosed. The headset adapter circuit generally includes a maximal length sequence generator circuit coupled to the adapter transmit signal line for injecting a maximal length sequence signal. A maximal length sequence cross-correlator circuit is coupled to the adapter receive signal line for capturing a receive signal sample and convolving the receive signal sample with the maximal length sequence signal to generate a host phone sidetone path impulse response.