US Patent 8009840 Microphone calibration with an RGSC beamformer
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Patent abstract
It is intended to improve and automate the calculation of calibration filters connected downstream from the microphones of an RGSC beamformer. To this end it is proposed that an adaptive calibration filter calculation unit be used, by means of which calibration filters are calculated from the output signals of adaptive blocking filters such that the power of an output signal of a blocking filter subtracted from a reference signal and filtered by means of a calibration filter respectively is minimized. The calibration filters connected downstream from the microphones are then replaced by the calibration filters thus determined.
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Patent Inventor Names
Parijat Ashok Oak0
Walter Kellermann0
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US Patent 08009840 Microphone calibration with an RGSC beamformer US Patent 8009840 Microphone calibration with an RGSC beamformer
Infobox
Patent Number
080098400
Patent Number
80098400
Edits on 28 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
080098400
Date of Patent
August 30, 2011
0Patent Application Number
115414140
Date Filed
September 29, 2006
0Patent Primary Examiner
Edits on 8 Dec, 2021
Golden AI
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Infobox (+7 properties)
US Patent 08009840 Microphone calibration with an RGSC beamformer
Infobox
Is a
Patent jurisdiction
Patent number
08009840
Date of patent
August 30, 2011
Patent application number
11541414
Date Filed
September 29, 2006
Patent primary examiner
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