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:
Jul. 20, 2004
Filed:
Jan. 23, 2001
Jay S. King, San Diego, CA (US);
Qualcomm Incorporated, San Diego, CA (US);
Abstract
A wireless communication device receives audio data from a base station via a radio frequency (RF) communication link (i.e., a forward link) and transmits audio data to the base station via the RF communication link (i.e., a reverse link). The wireless communication device uses the inherent functionality of the reverse link, including an audio input device ( ) to determine whether the wireless communication device is operating in a high noise environment. A signal analyzer ( ) analyzes the audio signal on the reverse link and determines whether the ambient noise level exceeds predetermined threshold. If so, the signal analyzer ( ) activates a filter ( ) to filter the audio signal being provided to an audio output transducer ( ). Band limiting the audio signal provided to the audio output transducer ( ) improves intelligibility of the audio signal in the presence of noise.