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:
May. 01, 2018
Filed:
Sep. 07, 2017
Applicant:
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Inventor:
Mike Reuter, Park Ridge, IL (US);
Assignee:
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/0208 (2013.01); H04M 9/08 (2006.01); H04R 3/12 (2006.01); H04R 27/00 (2006.01); H04R 3/00 (2006.01);
U.S. Cl.
CPC ...
G10L 21/0208 (2013.01); H04M 9/082 (2013.01); H04R 3/005 (2013.01); H04R 3/12 (2013.01); H04R 27/00 (2013.01); G10L 2021/02082 (2013.01); H04R 2410/05 (2013.01); H04R 2499/13 (2013.01);
Abstract
Howling or oscillation in an in-vehicle communications system is prevented when the speaker gain or microphone gain is detected as giving rise to a loop gain equal to or greater than one for a particular frequency or band of frequencies or when the rate of gain of a frequency or band of frequencies increases at a rate that indicating howling will occur. Howling is prevented and not just stopped or suppressed, by adjusting the gain of all frequencies prior to the howling actually starting.