US Patent 7171246 Noise suppression

Patent 7171246 was granted and assigned to Nokia on January, 2007 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Nokia

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7171246

Date of Patent

January 30, 2007

Patent Application Number

10888261

Date Filed

July 9, 2004

Patent Citations Received

‌

US Patent 11756564 Deep neural network based speech enhancement

Patent Primary Examiner

‌

Duc M. Nguyen

Patent abstract

A method of noise suppression to suppress noise in a signal containing background noise (314) in a communications path between a cellular communications network and a mobile terminal. The method comprises the steps of:estimating and up-dating a spectrum of the background noise (332, 334);using the background noise spectrum to suppress noise in the signal;generating an indication to indicate the operation of at least one of a discontinuous transmission unit (DTX) and a bad frame handling unit (BFI); andfreezing estimating and up-dating of the spectrum of the background noise when the indication is present.

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