Title :
CMOS photo-transistor array detection system for visual light identification (ID)
Author :
Matsumoto, Yoshinori ; Hara, Takaharu ; Kimura, Yohsuke
Author_Institution :
Dept. of Appl. Phys. & Physico-Inf., Keio Univ., Yokohama
Abstract :
Visible light communication is a wireless communication method modulating the light of visible LED. In this study, high sensitive photo-transistor array has been developed for the visible light identification (ID) using CMOS 0.35 mum process. The response sensitivity of photo-transistor is over 0.8 A/W. The photo-transistor is selected by the outer signal in order to separate the signals from multiple light sources. The image of light sources is scanned by CCD module, and the brightest position is determined by C++ software.
Keywords :
CMOS integrated circuits; light emitting diodes; optical communication equipment; photodetectors; phototransistors; sensor arrays; C++ software; CCD module; CMOS photo-transistor array detection system; response sensitivity; size 0.35 mum; visible LED; visible light communication; visual light identification; wireless communication method; CMOS process; CMOS technology; Charge coupled devices; Communication standards; Fluorescent lamps; Frequency; Light emitting diodes; Light sources; Optical arrays; Optical modulation;
Conference_Titel :
Networked Sensing Systems, 2008. INSS 2008. 5th International Conference on
Conference_Location :
Kanazawa
Print_ISBN :
978-4-907764-31-9
DOI :
10.1109/INSS.2008.4610906
