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A real-time center-of-mass tracker circuit implemented by neuron MOS technology

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3 Author(s)
Yu, N.M. ; Dept. of Electr. Eng., Tohoku Univ., Sendai, Japan ; Shibata, T. ; Ohmi, T.

A new architecture integrated circuit has been developed as a key element of a system that can real-time track the center of mass of an moving image on a two-dimensional (2-D) pixel array. The circuit has been implemented using a high-functionality transistor called neuron MOSFET (neuMOS or νMOS for short), hence having a very simple circuit configuration. A quasi-two-dimensional algorithm is assumed for system in the circuit. A one-dimensional (1-D) array of neuron MOS circuits automatically finds the center-of-mass location using the image intensity distribution projected onto the x or y axis. The unique feature of the circuit is that it accepts analog inputs without A/D conversion but produces binary outputs, thus providing a very smooth interfacing between the real world and digital systems. Test circuits have been fabricated by a double-polysilicon CMOS process and their operation has been experimentally demonstrated

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Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on  (Volume:45 ,  Issue: 4 )