Wistron Corporation

Tsang-Hsing Lee

Meng-Chao Kao

Li-Ping Pan

Jie-Ci Yang

Wen-Kuong Liu

Gordon Horng

Yih-Shyang Chen

Mang Ou-Yang

Shih-Wei Huang

Jiun-Chian Liao

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 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 method for rapidly generating the gray-level versus brightness curve of a display includes the step of obtaining a portion of the gray-level values and their corresponding brightness values. These values are then used in a mathematical formula to find variables to obtain the gray-level versus brightness curve.

Method and device of rapidly generating a gray-level versus brightness curve of a display

A method of obtaining a new color temperature point as applied in a color display device. The color display device has a brightest temperature point when its red, green, and blue components are all in their brightest states. The method of obtaining a new color temperature point uses a mathematical method to find the new point which substantially satisfies the specific color temperature and also causes a minimum loss in brightness.

Growing community of inventors

Taipei, Taiwan

Tsang-Hsing Lee