TY - JOUR
T1 - A self-powered 2-dimensional motion detection chip
AU - Lu, Zhijian
AU - Cheung, Kwanlung
AU - Luo, Tao
AU - Song, Hongjiang
AU - Blain Christen, Jennifer
PY - 2014
Y1 - 2014
N2 - We demonstrate a self-powered chip to detect motion which enables constant, non-invasive monitoring. The chip was implemented in a standard 0.18 μm CMOS process. A P-N junction photodiode array was fabricated in the chip to detect when light is blocked by the movement of a hand or finger. The interface circuit detects the change between the shadowing and the exposure to determine the specific movement. This entire chip operates without any off-chip power supply and provides digitized outputs including 1 bit direction output and an 8 bits output indicative of the velocity in two dimensions.
AB - We demonstrate a self-powered chip to detect motion which enables constant, non-invasive monitoring. The chip was implemented in a standard 0.18 μm CMOS process. A P-N junction photodiode array was fabricated in the chip to detect when light is blocked by the movement of a hand or finger. The interface circuit detects the change between the shadowing and the exposure to determine the specific movement. This entire chip operates without any off-chip power supply and provides digitized outputs including 1 bit direction output and an 8 bits output indicative of the velocity in two dimensions.
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U2 - 10.1109/EMBC.2014.6944434
DO - 10.1109/EMBC.2014.6944434
M3 - Article
C2 - 25570802
SN - 1557-170X
VL - 2014
SP - 3731
EP - 3734
JO - Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference
JF - Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference
ER -