US Patent 9997151 Multichannel acoustic echo cancellation for wireless applications
Patent 9997151 was granted and assigned to Amazon on June, 2018 by the United States Patent and Trademark Office.
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Patent abstract
An acoustic echo cancellation (AEC) system that detects and compensates for differences in delay times between the AEC system and a set of wireless speakers. The filter coefficients used for AEC are adjusted based on the determined delay time to correct for frequency domain signal rotation.
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Patent Inventor Names
Philip Ryan Hilmes0
Robert Ayrapetian0
Yuwen Su0
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US Patent 09997151 Multichannel acoustic echo cancellation for wireless applications US Patent 9997151 Multichannel acoustic echo cancellation for wireless applications
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Patent Number
099971510
Patent Number
99971510
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Is a
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
099971510
Date of Patent
June 12, 2018
0Patent Application Number
150018400
Date Filed
January 20, 2016
0Patent Primary Examiner
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US Patent 09997151 Multichannel acoustic echo cancellation for wireless applications
Infobox
Is a
Patent applicant
Current assignee
Patent jurisdiction
Patent number
09997151
Date of patent
June 12, 2018
Patent application number
15001840
Date Filed
January 20, 2016
Patent primary examiner
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