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.

Date of Patent:
Jul. 01, 2014

Filed:

Jun. 15, 2005
Applicants:

Youhong LU, Vernon Hills, IL (US);

Ronald Fowler, Westford, MA (US);

Robert Mcgurrin, Arlington, MA (US);

Jenny Q. Jin, Natick, MA (US);

Inventors:

Youhong Lu, Vernon Hills, IL (US);

Ronald Fowler, Westford, MA (US);

Robert McGurrin, Arlington, MA (US);

Jenny Q. Jin, Natick, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/02 (2006.01); H04B 15/00 (2006.01); H03G 3/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

Comfort noise, such as can be used in voice communications can be generated using methods in the frequency domain and/or in the time domain. In various embodiments, a comfort noise spectrum can be generated in the frequency domain as the product of a background noise sample and a random noise sample. In other embodiments, the comfort noise can be generated directly in the time domain as the convolution of a background noise sample and a random noise sample.


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