Compact CMOS circuit for outlier removal

Compact CMOS circuit for outlier removal

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A CMOS chip that averages an array of analogue inputs and removes outlying inputs from the calculation of the output is presented. Implemented in analogue VLSI, these circuits perform the outlier-based averaging massively in parallel, while using only 13 transistors per analogue input in the array. This technique allows the preprocessing of massive arrays of analogue inputs, commonly found in sensing applications, on the input plane itself, thereby reducing the communication bottleneck at the chip I/O interface.


    1. 1)
      • Wolffenbuttel, R.F.: `On-chip functional integration', NEXUS Workshop on Silicon Sensor RealizationCompatible with Microelectronic Circuit Fabrication, September 1994, Toulouse, France, p. 1–40.
    2. 2)
      • M. Madou , S.R. Morrison . (1989) Chemical sensing with solid state devices.
    3. 3)
      • DeWeerth, S.P., Morris, T.G.: `Analog VLSI circuits for primitive sensory attention', Proc. Int. Symp. Circuits and Systems, June 1994, 6, London, England, p. 507–510.
    4. 4)
      • S.P. DeWeerth . Analog VLSI circuits for stimulus localization and centroid computation. Int. J. Comput. Vis. , 3 , 191 - 202
    5. 5)
      • Wilson, D.M., DeWeerth, S.P.: `Nonlinear preprocessing for smart chemical sensingsystems', Transducers '95/Eurosensors IX, June 1995, 1, Stockholm, Sweden, p. 814–817.

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