Title :
A CMOS image sensor for 10Mb/s 70m-range LED-based spatial optical communication
Author :
Itoh, Shintaro ; Takai, Isamu ; Sarker, M.S.Z. ; Hamai, M. ; Yasutomi, Keita ; Andoh, Michinori ; Kawahito, S.
Author_Institution :
Shizuoka Univ., Hamamatsu, Japan
Abstract :
A CMOS image sensor for spatial optical communication is presented. A two-transistor optical communication cell with a depleted photodiode and lateral charge overflow drain improves the light pulse response. A weighed summation of 9-point parallel analog outputs and pulse-equalizing technique greatly enhance the bit-rate and communication distance up to 10 Mb/s and 70 m, respectively.
Keywords :
CMOS image sensors; light emitting diodes; optical communication; photodiodes; 9-point parallel analog outputs; CMOS image sensor; LED; bit rate 10 Mbit/s; depleted photodiode; lateral charge overflow drain; light pulse response; pulse-equalizing technique; spatial optical communication; two-transistor optical communication cell; weighed summation; CMOS image sensors; CMOS technology; Light emitting diodes; Light sources; Optical arrays; Optical fiber communication; Optical receivers; Optical sensors; Photodiodes; Pixel;
Conference_Titel :
Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2010 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-6033-5
DOI :
10.1109/ISSCC.2010.5433978
