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US Patent 10388298 Methods for detecting double talk

Patent 10388298 was granted and assigned to Amazon on August, 2019 by the United States Patent and Trademark Office.

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Applicant
Amazon
Amazon
1
Current Assignee
Amazon
Amazon
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
103882981
Patent Inventor Names
Sridhar Pilli1
Carlo Murgia1
Ramya Gopalan1
Date of Patent
August 20, 2019
1
Patent Application Number
155854861
Date Filed
May 3, 2017
1
Patent Citations Received
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US Patent 11244697 Artificial intelligence voice interaction method, computer program product, and near-end electronic device thereof
‌
US Patent 10937441 Beam level based adaptive target selection
Patent Primary Examiner
‌
Bryan S Blankenagel
1
Patent abstract

A system configured to improve speech quality by performing residual echo suppression (RES). The system may detect when double talk is present in a voice conversation and may use different attenuation parameters based on a frequency of audio data. The system may perform RES on the audio data using a low attenuation value for low frequencies and a high attenuation value for high frequencies and determine that double talk is present when a difference in energy level between the low frequencies and the high frequencies is below a threshold. If double talk is present, the RES may generate output audio data using a low attenuation value for low frequencies and a high attenuation value for high frequencies. If double talk is not present, the RES may generate output audio data using a high attenuation value for low frequencies and a high attenuation value for high frequencies.

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