Wistron Corporation

Chuan-Yen Kao

Yao-Tsung Chang

Yin-Yu Chen

Chih-Yang Hung

Sheng-Lun Chiou

Li-Jen Chen

Yao-Shun Tseng

Yu-Lin Chen

Kai-Jen Cheng

Tsung-Yin Tsou

Tzu-Peng Chang

Hsiang-Min Chan

Hong-Siou Chen

Cheng-Nung Liao

A radar detection system and a radar field of view (FOV) direction adjustment method are provided. A processing unit of the radar detection system performs the following steps in one scanning round: obtaining at least one cluster of a current frame and a current status and a next status of each cluster based on digital feedback signals; and determining a displacement, determining, based on the current status of a tracked cluster in the at least one cluster and the displacement, whether the tracked cluster is located on an edge of a current FOV of a radar unit, and sending a control signal based on the next status of the tracked cluster in response to the tracked cluster being located on the edge of the current FOV, to adjust an FOV direction of the radar unit.

Radar detection system and radar field of view direction adjustment method

A monitoring radar and a monitoring and identification method therefor are provided. The monitoring radar may be a physiological information monitoring radar. The monitoring and identification method may be a physiological information monitoring and identification method. The physiological information monitoring radar processes at least one reflected radar signal to obtain a response characteristic and range information corresponding to each of a plurality of to-be-monitored objects and distinguishes the response characteristic of each of the to-be-monitored objects as identification information or physiological information. The physiological information monitoring radar then labels each piece of physiological information according to the range information and the identification information.

Physiological information monitoring and identification method, characterization information monitoring and identification method, and physiological information monitoring radar

A Doppler radar apparatus, including a transmitter, a receiver, and a processor, is provided. The transmitter transmits a radio frequency signal to a field. The receiver is coupled to the transmitter and receives a reflected signal corresponding to the radio frequency signal from the field. The processor is coupled to the receiver and is configured to detect a target in the field according to the reflected signal. In response to the target not being detected in the field, the processor switches to a power saving mode according to workload reduction information, and workload of the radio frequency signal in the power saving mode decreases based on the workload reduction information.

Doppler radar apparatus and power saving method thereof

A training device includes a force receiving component, a location detector, a resistance generator, and a controller. The force receiving component moves along a closed trajectory. The location detector is configured to detect a location of the force receiving component in the closed trajectory and to output a location signal. The resistance generator is configured to exert a resistance on the force receiving component. The controller controls the resistance generator to adjust the resistance based on the location signal.

Training device with adjustable resistance

A frequency modulated continuous wave radar system includes at least one identity tag, respectively disposed next to at least one test subject; and a frequency modulated continuous wave radar identity recognition device, including an identity recognition control module, for controlling a test identity tag of the at least one identity tag to be turned on to generate a specific tag reflection signal corresponding to an identity frequency in response to a chirp signal; and a frequency modulated continuous wave radar, for transmitting the chirp signal and receiving at least one reflection signal of the at least one test subject and the specific tag reflection signal in response to the chirp signal, to calculate and determine that the specific tag reflection signal and a specific reflection signal of the at least one reflection signal are corresponding to an adjacent position information. The specific reflection signal is corresponding to test subject information.

Frequency modulated continuous wave radar system and identity and information detection method thereof

A light emission control method is adapted to a direct-lit LED backlight display. The display includes a backlight module, a driving circuit, a detection circuit, and a control circuit. The backlight module includes a first light emission group and a second light emission group. The first light emission group includes a plurality of first LEDs, and the second light emission group includes a plurality of second LEDs. The first LEDs and the second LEDs are in an interleaved arrangement. The driving circuit is activated to selectively drive the first light emission group and the second light emission group to emit light. On detection of an abnormal light-emission status of any of the plurality of LEDs, the detection circuit sends an abnormal signal. The control circuit obtains a shut-down group according to the abnormal signal and actives the driving circuit not to drive the shut-down group to emit light.

Direct-lit LED backlight display and light emission control method therefor

A wearable device and a method of operating the same are provided. The wearable device includes a shoe assembly, a plurality of pressure sensors, a processing circuit and an alarm module. The plurality of pressure sensors are disposed on the shoe assembly and configured to generate a plurality of pressure sensing values. The processing circuit is configured to calculate a center of gravity coordinate according to the plurality of pressure sensing values and coordinates of the plurality of pressure sensors, and generate a determination result according to the center of gravity coordinate. The alarm module is configured to output an alarm signal to perform an alarm function.

Wearable device and method of operating the same

A live facial recognition method includes projecting a given pattern to a subject under recognition; capturing a reflected pattern of the subject under recognition; and detecting whether the subject under recognition is a flat surface according to the reflected pattern. The subject under recognition is determined to be a living subject when the subject under recognition is not a flat surface.

Live facial recognition system and method

A live facial recognition method includes capturing a zoom-out image of a face of a subject under recognition; and detecting a frame outside the face of the subject under recognition on the zoom-out image. The subject under recognition is determined to be a living subject when the zoom-out image includes no frame outside the face.

A live facial recognition method includes capturing a plurality of images of a face of a subject under recognition; obtaining time-varying data according to the images, the time-varying data representing a periodic variation of facial color of the subject under recognition due to facial vasoconstriction and vasodilation caused by heartbeat; and comparing the time-varying data with a predetermined frequency range. The subject under recognition is determined to be a living subject when the time-varying data is within the predetermined frequency range.

A vital-sign detecting system includes radio-frequency (RF) tags disposed on detected subjects respectively, one of the RF tags being turned on and generating an incident RF signal with a predetermined frequency, and the incident RF signal projecting on a corresponding detected subject to generate a corresponding reflected RF signal; and at least one radio-frequency identification (RFID) radar that turns on one of the RF tags, demodulates the reflected RF signal to obtain vital signal of the corresponding detected subject, and identifies the detected subject according to the turned-on RF tag.

Vital-sign detecting system and method

A sound processing apparatus and a sound processing method thereof are provided. The following steps are included. Multiple first sound signals corresponding to multiple sound reception sources are obtained. A sound source position of a sound source relative to the sound reception sources is determined. A relationship among multiple sound receiving directions corresponding to the sound reception sources is determined according to the sound source position. The sound receiving directions relate to directionality of the sound reception sources. A second sound signal is outputted from the first sound signals based on the relationship among the sound receiving directions. Accordingly, an optimal sound receiving direction corresponding to the sound source can be adjusted automatically, so as to improve sound quality.

Sound processing apparatus and audio signals processing method thereof based on sound source position

A vital-sign detecting system includes radio-frequency (RF) tags disposed on detected subjects respectively, the RF tags respectively generating incident RF signals with different predetermined frequencies, and the incident RF signal projecting on a corresponding detected subject to generate a corresponding reflected RF signal; and at least one RF radar that demodulates the reflected RF signal to obtain vital sign of the corresponding detected subject, and identifies the detected subject according to associated frequency of the reflected RF signal.

A 3D image capture method includes selecting a plurality of different pairs of image capture devices, of which distance errors relevant to an object are determined, the distance error being a distance between a measured position and a real position of the object; selecting a pair of image capture devices with a minimum distance error; and obtaining 3D information according to spacing and angles of view of the selected pair of image capture devices.

3D image capture method and system

A video recording device and an associated video recording method are provided. The video recording device includes a main capturing module, a supplementary capturing module and a controller. The main capturing module records a to-be-captured target according to a main focus parameter. The supplementary capturing module captures the to-be-captured target and generates a plurality of supplementary capturing pictures. The controller is electrically connected to the main capturing module and the supplementary capturing module. The controller selectively updates the main focus parameter according to the supplementary focus parameter. The supplementary focus parameter is obtained according to the supplementary capturing pictures.

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Taipei, Taiwan

Chuan-Yen Kao