Electronic device with distance detection function and distance detection method thereof
AssigneeInventec Appliances Corp.
InventorChih-Hsuan Hsiao
Life of this patent
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Abstract
An electronic device with a distance detection function including a master device and a slave device is provided. The master device includes a first transceiver and an ultrasonic receiver. The slave device includes a second transceiver and an ultrasonic transmitter. The first transceiver and the second transceiver perform two-way communication and pairing with a radio frequency. The ultrasonic receiver receives an ultrasonic wave from the ultrasonic transmitter so that the master device calculates a relative distance to the slave device according to the flight time of the ultrasonic wave.
Claims13
An electronic device with a distance detection function, comprising:
- a master device, comprising a first transceiver and an ultrasonic receiver;
- and
- a slave device, comprising a second transceiver and an ultrasonic transmitter performing two-way communication and pairing with a radio frequency, wherein the ultrasonic receiver receives an ultrasonic wave from the ultrasonic transmitter so that the master device calculates a relative distance to the slave device according to a flight time of the ultrasonic wave.
A distance detection method used in an electronic device, wherein the electronic device comprises a master device and a slave device, and the distance detection method comprises:
- performing two-way communication and pairing with a radio frequency by the master device and the slave device;
- setting a triggering condition for distance detection;
- receiving an ultrasonic wave from the ultrasonic transmitter by the master device when the triggering condition is satisfied;
- and
- calculating a relative distance between the master device and the slave device by the master device according to a flight time of the ultrasonic wave.
Dependencies are inferred from the claim text.