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:
Jun. 13, 2017
Filed:
Sep. 16, 2016
Applicant:
Nxp B.v., Eindhoven, NL;
Inventors:
Marco Berkhout, Tiel, NL;
Armand Stuivenwold, Wijchen, NL;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 29/00 (2006.01); H03F 3/387 (2006.01); H03F 3/187 (2006.01); H03F 3/217 (2006.01); H03F 3/45 (2006.01); H03F 1/26 (2006.01); H04R 3/04 (2006.01); H04R 3/00 (2006.01);
U.S. Cl.
CPC ...
H03F 3/387 (2013.01); H03F 1/26 (2013.01); H03F 3/187 (2013.01); H03F 3/2175 (2013.01); H03F 3/45475 (2013.01); H03F 3/45995 (2013.01); H04R 3/007 (2013.01); H04R 3/04 (2013.01); H04R 29/003 (2013.01); H03F 2200/03 (2013.01); H03F 2200/18 (2013.01); H03F 2200/294 (2013.01); H03F 2200/462 (2013.01); H03F 2200/471 (2013.01); H03F 2200/72 (2013.01); H03F 2203/45528 (2013.01); H04R 2400/01 (2013.01); H04R 2420/01 (2013.01);
Abstract
An amplifier system is described. The amplifier system may amplify an audio signal transmitted via a connected loudspeaker in a first mode of operation. In a second mode of operation the amplifier system may amplify a signal generated by the loudspeaker operated in reverse as a microphone. Because a loudspeaker is less sensitive than a microphone the amplifier system may be used to acquire audio at high sound pressure levels for example at a concert or while making a phone-call in a noisy environment for example with a high level of wind noise.