Quanta Computer Incorporated

Huan-Tang Wu

Kai-Ju Cheng

Hsin-Lun Hsieh

Chih-Wei Sung

Huan-Pin Shen

Chia-Yuan Chang

Barry Lam

Ting-Han Huang

Chin-Yuan Ting

Chin-Kang Chang

Yu-Hsun Chen

Kang-Wen Lin

Chih-Yin Lin

Rong-Quen Chen

Shao-Ang Chen

Juin-Yi Huang

Tsung-Hsin Lu

Chia-Yi Wu

Jia-Chyi Wang

Chi-Cheng Chang

I-Chung Chien

Chao-Chueh Chang

A brightness control device for controlling light-emitting diodes (LEDs) during a video recording performed by an image sensor. The brightness control device includes a pulse width modulation (PWM) signal output unit and a brightness control signal generation unit. The signal output unit is configured to provide at least one PWM signal. The brightness control signal generation unit is configured to generate a brightness control signal according to an exposure signal of the image sensor and the at least one PWM signal.

Brightness control device and brightness control method

A method for distinguishing plaque and calculus is provided. The method is used in a device and includes the following steps: emitting, by a blue light-emitting diode, blue light to illuminate teeth in an oral cavity, wherein the blue light is used to generate autofluorescence of plaque and calculus on the teeth; sensing, by an image sensor, the autofluorescence of plaque and calculus; and distinguishing, by a processor, a plaque area and a calculus area on the teeth based on the autofluorescence.

Method and device for distinguishing plaque and calculus

A video conference system built in an internet protocol (IP) network is provided. The system has: a multimedia capturing unit configured to photograph and output a first video signal; a DECT telephone configured to receive sounds and output a first audio signal; and a video conference terminal apparatus, including: an audio processing unit is an audio codec; a video processing unit is an video codec; and a network processing unit for transmitting a first network packet consisting of first audio/video streams generated by the audio/video processing units to the IP network, wherein the network processing unit receives a second network packet consisting of second audio/video streams from the IP network, wherein the second audio/video streams are decoded by the audio/video processing units, respectively, to generate second audio/video signals, which are displayed on the DECT telephone and a display apparatus, respectively.

Video conference system

Growing community of inventors

Tao Yuan Shien, Taiwan

Huan-Tang Wu