Industrial Technology Research Institute

National Taiwan University

Luxshare-ict Co., Ltd.

Chien-Kai Tseng

Chih-Kung Lee

Ming-Daw Chen

Chang-Ho Liou

Wen-Ching Ko

Yi-Jen Chan

Ing-Yih Leu

Dang-Yao Jheng

Chuan-Hsin Chang

Che-I Kao

A noise detection method includes: inputting a key audio signal with multiple frequencies to an audio device to be tested; measuring a first output audio signal emitted by the audio device to be tested; performing an audio analysis on the first output audio signal to generate a measurement signal; and comparing the measurement signal with a qualified signal to generate a comparison result, and determining whether the first output audio signal has noise based on the comparison result.

Noise detection device and method thereof

An electret diaphragm and a speaker using the same are provided. The electret diaphragm includes an electret layer, a bonding layer adhered to a surface of the electret layer, and an aluminum (Al) electrode layer adhered on the bonding layer. The electret layer at least includes ethylene group polymer. A material of the bonding layer is ethylene-ethyl-acrylate (EEA) or ethylene-vinyl acetate (EVA).

Electret diaphragm and speaker using the same

Growing community of inventors

Taipei, Taiwan

Chien-Kai Tseng