Wistron Corporation

Li-Ping Pan

Meng-Chao Kao

Jie-Ci Yang

Wen-Kuong Liu

Xiao-Qin Wang

Tsang-Hsing Lee

Chih-Wen Huang

Ting-Yao Cheng

Yao-Wei Wang

Cheng-Hsing Liu

Ching-Fu Hsu

Ya-Shian Huang

I-Chun Wu

Hsin-Chi Chen

Wei-Ting Chen

Fei-Ta Chen

Jian-Zong Lee

Li-Ren Wang

Chih-Jen Wu

Jing-Hong Lu

Xiao Qin Wang

Ta-Yuan Tai

An air leak detection device, air leak detection method and system thereof are provided. The air leak detection method is used for a cavity. The air leak detection method includes the following steps. A scanning signal is input into the cavity. A response signal of the cavity related to the scanning signal is recorded. The response signal is analyzed to determine whether the cavity is air leaking.

Air leak detection device, air leak detection method and system thereof

A speaker includes a frame, a vibration assembly and a magnetic circuit assembly. The vibration assembly is assembled on the frame. The magnetic circuit assembly is assembled on the frame. The vibration assembly includes a voice coil and a piezoelectric element, the voice coil and the piezoelectric element are arranged coaxially, and the voice coil is between the piezoelectric element and the magnetic circuit assembly.

Speaker

A high pitch enhanced passive radiator is adapted to be utilized in a passive radiator speaker. The high pitch enhanced passive radiator includes a shell, a woofer, and the passive radiator speaker. The shell has a first slot and a second slot. The woofer is connected to the first slot. The passive radiator speaker is connected to the second slot and includes a flange, a piezoelectric speaker, and a counterweight plate. The piezoelectric speaker is connected to the flange. The projected area of the counterweight plate and the projected area of the piezoelectric speaker at least partially overlap with each other.

High pitch enhanced passive radiator and passive radiator speaker having the same

A method and a system for vision-based defect detection are proposed. The method includes the following steps. A test audio signal is outputted to a device-under-test (DUT), and a response signal of the DUT with respect to the test audio signal is received to generate a received audio signal. Signal processing is performed on the received audio signal to generate a spectrogram, and whether the DUT has an unacceptable defect with respect to the predefined auditory standard is determined by analyzing a distribution of signal strength according to the spectrogram.

Method and system for vision-based defect detection

A power control method for a charging system includes: detecting a power signal and an input voltage of the power signal; determining a charging protocol supported by the power signal; and determining whether to conduct a power switching circuit or not according to the input voltage of the power signal and the charging protocol supported by the power signal to provide power for an amplifier chip of the charging system.

Power control method and related charging system

Embodiments of the present disclosure provide an inverter vent and a loudspeaker having the same. Preferably, air flows within the inverted vent in a 360 degrees full-circumferential direction. This design can improve the efficiency of the loudspeaker, reduce the wind noise, and increase the bass ductility.

Inverter vent and loudspeaker

A method and a system for vision-based defect detection are proposed. The method includes the following steps. A test audio signal is outputted to a device-under-test (DUT), and a response signal of the DUT with respect to the test audio signal is received to generate a received audio signal. Signal processing is performed on the received audio signal to generate a spectrogram, and whether the DUT has a defect is determined through computer vision according to the spectrogram.

A diffuser includes a cone body including an apex portion, a bottom portion, and a side edge portion. The apex portion forms a partial spherical surface, and the side edge portion is aspherical and is connected between the apex portion and the bottom portion. The apex portion satisfies: 2R/3&#x2264;r&#x2264;R, where r is a radius of curvature of the apex portion, and R is a radius of curvature of a spherical diaphragm of a tweeter speaker. A loudspeaker including a tweeter speaker and a diffuser is also provided.

Diffuser and loudspeaker

A loudspeaker includes a cavity, a first coil, a first magnet and a linking-up unit. The cavity includes a vibration film. The vibration film is disposed on an opening of the cavity. The first coil is configured to adjust a first magnetic field in the first coil according to the driving of an electronic signal. At least part of the first magnet is in the first coil. The first magnet is movable along a first axis. The linking-up unit is between the vibration film and the first magnet. The linking-up unit is connected to the vibration film and the magnet respectively.

Loudspeaker

A speaker module of the invention includes a housing, two passive radiators and a speaker. The housing has two side walls. The two passive radiators are respectively disposed at the two side walls, wherein the two passive radiators are overlapped with each other in a direction and have a gap therebetween. The speaker is disposed at the housing, wherein an acoustic wave emitted from the speaker drives the two passive radiators to vibrate in the direction. In addition, a thin electronic device with the speaker module is also provided.

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Taipei, Taiwan

Li-Ping Pan