POWER STATE DETECTION VIA AUDIO SIGNAL CAPTURE
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United States of America Patent
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Issued Date -
Mar 30, 2023
app pub date -
Sep 28, 2022
filing date -
Sep 28, 2022
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Abstract
Embodiments are provided for automatically determining the power state of a consumer electronic device, such as a television. For instance, a switching device may transmit a reference audio signal to a consumer electronic device for playback thereby. An audio signal captured by a microphone is compared to a reference audio signal. If a level of similarity between the captured audio signal and the reference audio signal meet a threshold condition, then a determination is made that the consumer electronic device is powered on. Otherwise, a determination is made that the consumer electronic device is powered off, in a standby state or muted.
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