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. 03, 2016
Filed:
Mar. 27, 2015
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Matthew Kirsch, Chicago, IL (US);
Continental Automotive Systems, INC., Auburn Hills, MI (US);
Abstract
Wind buffet noise in a microphone signal is detected using a per-frequency probability of speech estimate as well as short-term and long-term low-frequency energy. Using the probability of speech presence estimate, the buffet-no-speech condition can be accurately detected. But the probability of speech presence, by itself, is insufficient for distinguishing between the buffet-speech and either of the no-buffet conditions. It can be assumed that, if wind buffeting is occurring, it is occurring during both speech and non-speech segments to help distinguish between the other possible states. That is, the probability difference may be used as the criteria for entering the buffet-no-speech state, and then some other information (e.g., low frequency energy) may be used to determine when to transition to the buffet-speech state or one of the no-buffet states once the probability difference criteria is no longer met.