Power management circuit
One example discloses a power management circuit, including: an ultrasonic transmitter configured to generate an ultrasonic signal having a set of transmitted ultrasonic signal attributes; an ultrasonic receiver configured to detect the ultrasonic signal having a set of received ultrasonic signal at...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
21.06.2022
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Subjects | |
Online Access | Get full text |
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Summary: | One example discloses a power management circuit, including: an ultrasonic transmitter configured to generate an ultrasonic signal having a set of transmitted ultrasonic signal attributes; an ultrasonic receiver configured to detect the ultrasonic signal having a set of received ultrasonic signal attributes; wherein the power management circuit is configured to cause a device to be operated at a first power level and a second power level; and a proximity detection circuit configured to transition the device from the first power level to the second power level in response to a preselected difference between the transmitted set of ultrasonic signal attributes and the received set of ultrasonic signal attributes. |
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Bibliography: | Application Number: US202016860944 |