Merry Electronics (Shenzhen) Co., Ltd.

Universal Scientific Industrial (Shanghai) Co., Ltd.

Feng Chia University

Universal Global Scientific Industrial Co., Ltd.

Yu-Cheng Liu

Jin-Huang Huang

Yu-Chun Liu

Hung-Wei Chen

Wen-Kuei Liu

Chao-Hsuan Liu

Yi-Shan Liu

Jui-Chu Weng

Cheng-Hui Hsieh

Shiang-Chun Hsu

Chun-Hung Chang

Hsiu-Feng Chen

Tzu-Hsuan Lei

Yan-Rui Liu

A braking mechanism of a wheeled device is provided, including: a main body, configured to be connected to the wheeled device including at least one wheel; an adjusting member, disposed on the main body and including a rod and a first abutting member adjustably positioned on the rod; a braking member, movably disposed on the main body; and an elastic member, abutted between the first abutting member and the braking member so that the braking member is biased by the force of the elastic member toward the at least one wheel to frictionally contact the at least one wheel.

Braking mechanism of a wheeled device

An electronic device includes a main body, a sound guiding tube, a microphone assembly and an adjustment cavity. The device body includes a wall plate. The sound guiding tube is formed on the wall plate of the main body and includes an input end, a first output end and a second output end, and the input end is in communication with the external environment. The microphone assembly is arranged on the main body and in communication with the first output end of the sound guiding tube, and the microphone assembly is acoustically connected to the external environment. The adjustment cavity is arranged in the main body and in communication with the second output end of the sound guiding tube, and the adjustment cavity is acoustically connected to the external environment.

Electronic device

The invention discloses a prediction method for porous material of electroacoustic devices and prediction system thereof. The method comprises the following steps. The step (A) is to obtain at least one acoustic parameter of a porous material from an electroacoustic device, and the at least one acoustic parameter comprises a flow resistance value, a specific flow resistance value and a flow resistance ratio. The step (B) is to calculate an actual resistance value of the porous material based on the at least one acoustic parameter. Thereafter, the step (C) establishes an equivalent circuit model corresponding to the electroacoustic device based on the structure configuration and material parameters of the electroacoustic device. At last, step (D) introduces the actual impedance value of the porous material into the equivalent circuit model, and calculates the frequency response curve and impedance curve of the electroacoustic device affected by the porous material.

Prediction method of porous material and the system thereof

An exemplary embodiment illustrates an equalization pre-processing method, adapted for characterizing a second sound receptor unit in a sound receiving system based on knowing the internal structure parameters of a first sound receptor unit. The method includes: measuring a first sensitivity response of the first sound receptor unit and a second sensitivity response of the second sound receptor unit; equalizing the second sensitivity response according to the first sensitivity response and obtaining the differences in the sensitivity response; conducting simulation to obtain the third sensitivity response associated with the first sound receptor unit in the given sound receiving system; compensating the third sensitivity response to generate the fourth sensitivity response associated with the second sound receptor unit in the sound receiving system according to the differences in the sensitivity response; analyzing the fourth sensitivity response to characterize the second sound receptor unit in the given sound receiving system.

Method and system of equalization pre-preocessing for sound receivng system

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Taichung, Taiwan

Yu-Cheng Liu