Boots – shoes – and leggings
Patent
1996-02-12
1998-08-18
Mai, Tan V.
Boots, shoes, and leggings
G06G 700
Patent
active
057966478
ABSTRACT:
An inner product calculation device for calculating an inner product of a coefficient vector including at least one first element with a positive sign and at least one second element with a negative sign and an input vector including elements corresponding to a plurality of input voltages. The device includes: an amplifier having an input terminal and an output terminal; a first capacitor corresponding to the first element and having a capacitance in proportion to a value of the first element; a second capacitor corresponding to the second element, and having a capacitance in proportion to an absolute value of the second element; a third capacitor connected to one end of the first capacitor, one end of the second capacitor, and the input terminal of the amplifier; a voltage source applying, during a first period a corresponding one of the input voltages to the first capacitor and a reference voltage to the second capacitor and the third capacitor; and applying, during a second period following the first period, the reference voltage to the first capacitor, a corresponding one of the plurality of input voltages to the second capacitor, and an output voltage output from the output terminal of the amplifier to the third capacitor; and a switch for short-circuiting the input terminal of the amplifier and the output terminal of the amplifier during a third period.
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patent: 5168461 (1992-12-01), Wu et al.
patent: 5325322 (1994-06-01), Bailey et al.
International Journal of Electronics, vol. 64, No. 3, Mar. 1988, pp. 359-375, Cichoki A. et al., "Switched-Capacitor Function Generators".
IEEE International Symposium on Circuits and Systems Proceedings, vol. 3 of 3, Apr. 27, 1981, Chicago; pp. 733-736, Gregorian et al., "An Integrated single-chip, switched-capacitor speech synthesizer".
Gregorian et al., Analog MOS integrated circuits for signal processing;, 1986, Wiley & Sons, New York, pp. 412-416.
Fujio Mitsuhiko
Iizuka Kunihiko
Matsui Hirofumi
Miyamoto Masayuki
Conlin David G.
Mai Tan V.
Michaelis Brian L.
Sharp Kabushiki Kaisha
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