SIGNAL SYNCHRONIZATION CIRCUIT, SIGNAL PROCESSING DEVICE, SIGNAL SYNCHRONIZATION METHOD, AND NON-TRANSITORY RECORDING MEDIUM
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United States of America
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Feb 13, 2025
app pub date -
Dec 16, 2021
filing date -
Dec 16, 2021
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Abstract
A signal synchronization circuit of the invention includes: a detector that detects a sound source, based on a second signal out of a first signal supplied from a first microphone and the second signal supplied from a second microphone; a setter that sets a processing period, based on a result of detecting by the detector; a first delayer that delays the first signal; a second delayer that delays the second signal; a filter that generates a third signal by performing filtering processing, based on the second signal delayed by the second delayer; and a controller that controls operations of the first delayer, the second delayer, and the filter in the processing period to cause a signal difference between the first signal delayed by the first delayer and the third signal to become small.
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