Far-field pickup device and method for collecting voice signal in far-field pickup device
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United States of America Patent
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Jan 9, 2024
Grant Date -
Jan 21, 2021
app pub date -
Sep 25, 2020
filing date -
Sep 29, 2018
priority date (Note) -
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Abstract
A far-field pickup device including a device body and a microphone pickup unit is provided. The microphone pickup unit is configured to collect user speech and an echo of a first sound signal output by the device body, and transmit, to the device body, a signal obtained through digital conversion of the collected user speech and the echo. The device body includes a signal playback source, a synchronizing signal generator, a horn, a delay determining unit, and an echo cancellation unit configured to perform echo cancellation on the signal transmitted by the microphone pickup unit to obtain a collected human voice signal.
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