Abstract:
A tracking and ranging system includes a thermal sensor device, a controller, a ranging device and a transmission device. The thermal sensor device is configured to capture a thermal image. The controller analyzes the thermal image to identify the main heat source from among the heat sources displayed in the thermal image, and obtain an offset distance between the center points of the main heat source and the thermal image. The ranging device is coupled to the controller. The transmission device loads the ranging device and is coupled to the controller. The controller controls the motion of the transmission device in accordance with the offset distance to correct the offset angle between the ranging device and the object corresponding to the main heat source. After correcting the offset angle, the ranging device detects a first distance to the object by transmitting energy and receiving reflected energy.
Abstract:
A USB testing device is provided for an electronic device having a USB port. The USB testing device includes a first USB control unit, a second USB control unit, and a micro-processor. When the first USB control unit has received power, the first USB control unit processes a connection test via a first data port. When the second USB control unit has received the power, the second USB control unit processes a connection test via a second data port. When the USB testing device is connected to the USB port, the micro-processor provides power to the first USB control unit. When the first USB control unit receives power, the first USB control unit provides power to the second USB control unit after waiting for a predetermined period of time. The electronic device determines whether the first and second data ports are operating properly.
Abstract:
A USB testing device is provided for an electronic device having a USB port. The USB testing device includes a first USB control unit, a second USB control unit, and a micro-processor. When the first USB control unit has received power, the first USB control unit processes a connection test via a first data port. When the second USB control unit has received the power, the second USB control unit processes a connection test via a second data port. When the USB testing device is connected to the USB port, the micro-processor provides power to the first USB control unit. When the first USB control unit receives power, the first USB control unit provides power to the second USB control unit after waiting for a predetermined period of time. The electronic device determines whether the first and second data ports are operating properly.
Abstract:
An electronic device is provided. When the electronic device is at a power exhaustion state and a first external device with a charging function is coupled to a connection interface to provide a first supply voltage to a power pin of the connection interface, a voltage regulation unit transforms the first supply voltage to a first operation voltage, and a storage unit powered by the first operation voltage outputs device information of the electronic device to the first external device through a signal transmitting/receiving pin set of the connection interface. When the first external device provides a second supply voltage to the power pin in response to the device information, the electronic device enters a charging mode. In the charging mode, the charging unit provides a charging voltage according to the second supply voltage to charge the battery unit and provides a second operation voltage to a processing unit.
Abstract:
A sound control method includes following steps. Firstly, a controller commands a first ultrasonic transmitter to emit a first ultrasonic wave. Then, in a first time interval, the controller records a first received signal waveform received by an ultrasonic receiver. Then, the controller commands a second ultrasonic transmitter to emit a second ultrasonic wave. Then, in a second time interval, the controller records a second received signal waveform received by the ultrasonic receiver. Then, a playing mode of at least one speaker is controlled according to the first received signal waveform and the second received signal waveform.
Abstract:
An environment detection method includes the following steps is provided. Firstly, an ultrasonic wave is emitted to a first reflecting cone by an ultrasonic transmitter, wherein the ultrasonic wave is reflected to the environment by the first reflecting cone in a full circumferential direction. Then, the ultrasonic waves reflected back from a second reflecting cone is received by an ultrasonic receiver. Then, a received signal waveform received by the ultrasonic receiver is recorded by a controller.
Abstract:
An electronic device is provided. When the electronic device is at a power exhaustion state and a first external device with a charging function is coupled to a connection interface to provide a first supply voltage to a power pin of the connection interface, a voltage regulation unit transforms the first supply voltage to a first operation voltage, and a storage unit powered by the first operation voltage outputs device information of the electronic device to the first external device through a signal transmitting/receiving pin set of the connection interface. When the first external device provides a second supply voltage to the power pin in response to the device information, the electronic device enters a charging mode. In the charging mode, the charging unit provides a charging voltage according to the second supply voltage to charge the battery unit and provides a second operation voltage to a processing unit.
Abstract:
A tracking-distance-measuring system capable of tracking a torso object is provided. The tracking-distance-measuring system includes: an image sensor, a controller, a distance-measuring device, and an actuator device. The image sensor is configured to capture an input image. The controller is configured to analyze the input image to recognize a torso object from the input image, and calculate an offset distance between a center of the torso object and a central axis of the input image. The actuator device is configured to carry the distance-measuring device. The controller controls the actuator device to calibrate an offset angle between the distance-measuring device and the recognized torso object according to the offset distance. In response to calibrating the offset angle, the distance-measuring device emits energy and receives reflected energy to detect an object distance of the torso object.
Abstract:
An electronic device includes a connection interface, a voltage regulation unit, a storage unit, a charging unit, a processing unit, and a switching unit. The switching unit is coupled to the storage unit, the processing unit, and the connection interface. When the electronic device is in a power-exhaustion state and an external device having a charging function is coupled to the connection interface to provide a first supplying voltage to a power pin of the connection interface, the voltage regulation unit transforms the first supplying voltage to a first operation voltage to power the storage unit and the switching unit, and the switching unit couples the storage unit to the connection interface to transmit device information to the external device. When the external device provides a second supplying voltage to the power pin in response to the device information, the electronic device is in a charging state.
Abstract:
An electronic device includes a connection interface, a voltage regulation unit, a storage unit, a charging unit, a processing unit, and a switching unit. The switching unit is coupled to the storage unit, the processing unit, and the connection interface. When the electronic device is in a power-exhaustion state and an external device having a charging function is coupled to the connection interface to provide a first supplying voltage to a power pin of the connection interface, the voltage regulation unit transforms the first supplying voltage to a first operation voltage to power the storage unit and the switching unit, and the switching unit couples the storage unit to the connection interface to transmit device information to the external device. When the external device provides a second supplying voltage to the power pin in response to the device information, the electronic device is in a charging state.