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. 13, 2013
Filed:
Nov. 05, 2009
Hai LI, Shenzhen, CN;
Kunping Xu, Shenzhen, CN;
Lizhen Zhang, Shenzhen, CN;
Yun Yang, Shenzhen, CN;
Wei Feng, Shenzhen, CN;
Hai Li, Shenzhen, CN;
Kunping Xu, Shenzhen, CN;
Lizhen Zhang, Shenzhen, CN;
Yun Yang, Shenzhen, CN;
Wei Feng, Shenzhen, CN;
BYD Company Ltd., Shenzhen, CN;
Abstract
The present invention provides a method of eliminating background noise and a device using the same. The method of eliminating background noise comprises the steps of: detecting an effective value of a received audio signal, and generating an average power signal of the received audio signal; generating a noise eliminating control signal by comparing the average power signal with a first threshold; and eliminating the noise, and amplifying the voice signal using the noise eliminating control signal. A device of eliminating background noise comprises a detecting unit, which is configured to detect an effective value, and generate an average power signal of the received audio signal; a first signal generating unit, which is configured to generate a noise eliminating control signal; and an amplifying unit, which is configured to eliminate the noise, and amplify the voice signal.