Hearing instrument and method for directional signal processing of signals in a microphone array

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United States of America Patent

PATENT NO 12047747
APP PUB NO 20230007408A1
SERIAL NO

17849940

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Abstract

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A method for directional signal processing of signals of a microphone array, including first and second microphones generating first and second input signals from an ambient sound, uses the first input signal to form a reference signal transformed into the frequency domain, thereby generating a frequency-space reference signal. The first and second input signals are transformed into the frequency domain, and a first frequency-space directional signal is formed in the frequency domain using the transformed first and second input signals. A frequency-resolved comparison of the frequency-space reference signal with the first frequency-space directional signal or signal derived therefrom in the frequency domain, is used to generate frequency-dependent first gain factors to generate a time filter in the time domain. The reference signal is filtered by the time filter and an output signal is generated from the reference signal filtered by the time filter.

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Patent Owner(s)

Patent OwnerAddress
SIVANTOS PTE LTDSINGAPORE 139959

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fischer, Eghart Schwabach, DE 68 630
Puder, Henning Erlangen, DE 55 334
Rosenkranz, Tobias Daniel Bubenreuth, DE 30 55

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