Control device for power switch, control method for power switch and electronic display system
AssigneeITE Tech. Inc.
InventorPo-Yi Wu
Life of this patent
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Abstract
A control device for a power switch, a control method for the power switch, and an electronic display system are provided. The control device includes an acoustic sensor and a switch. The switch is coupled between a power supply and an external electronic device. The acoustic sensor senses an acoustic signal. In a standby mode, the acoustic sensor generates a switch control signal according to a frequency of the acoustic signal. The switch turns on or turns off a path for the external electronic device to receive power according to the switch control signal. In the standby mode, the acoustic sensor periodically and actively performs a generating operation of the switch control signal.
Claims14
A control device for a power switch, comprising:
- an acoustic sensor, configured to sense an acoustic signal and generate a switch control signal according to a frequency of the acoustic signal in a standby mode;
- and
- a switch, coupled between a power supply and an external electronic device, and configured to turn on or turn off a path for the external electronic device to receive the power supply according to the switch control signal,
- wherein, in the standby mode, the acoustic sensor periodically and actively performs a generating operation of the switch control signal.
A control method for a power switch, comprising:
- sensing an acoustic signal by an acoustic sensor;
- generating a switch control signal according to a frequency of the acoustic signal by the acoustic sensor in a standby mode;
- turning on or turning off a path for an external electronic device to receive a power supply according to the switch control signal by the switch;
- and
- periodically and actively performing a generating operation of the switch control signal by the acoustic sensor in the standby mode.
Dependencies are inferred from the claim text.