Title:
NONLINEAR ARITHMETIC CIRCUIT
Document Type and Number:
Japanese Patent JP3256738
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To form an arbitrary nonlinear nonmotoneous transfer function generating circuit and an arbitrary nonlinear dynamics actualizing circuit which have simple circuit constitution and low power consumption.
SOLUTION: A voltage source 3 which varies in voltage value with an arbitrary function of time including nonlinearity is connected to a capacitor 5 through a switch 4, which is turned on and off under the control of an input signal. The input signal is a pulse modulated signal having information when the voltage value or current value varies and the switch 4 is turned on the moment the voltage value or current value of the input signal varies to save the current value of the voltage source 3 in the capacitor 5. Then the terminal voltage across the capacitor is outputted and then the input signal is converted with a converting function of the same style with an arbitrary function and outputted.
Inventors:
Takashi Morie
Mu Iwata
Makoto Nagata
Mu Iwata
Makoto Nagata
Application Number:
JP23046898A
Publication Date:
February 12, 2002
Filing Date:
August 17, 1998
Export Citation:
Assignee:
Hiroshima University Dean
International Classes:
G06G7/12; G06F15/18; G06G7/38; G06N3/06; (IPC1-7): G06G7/38
Domestic Patent References:
| JP7302290A | ||||
| JP916698A | ||||
| JP4267490A | ||||
| JP816688A |
Other References:
Ｔ．Ｍｏｒｉｅ，Ｓ．Ｓａｋａｂａｙａｓｈｉ，Ｍ．Ｎａｇａｔａ，Ａ．Ｉｗａｔａ，”Ｎｏｎｌｉｎｅａｒ ｆｕｎｃｔｉｏｎ ｇｅｎｅｒａｔｏｒｓ ａｎｄ ｃｈａｏｔｉｃ ｓｉｇｎａｌ ｇｅｎｅｒａｔｏｒｓ ｕｓｉｎｇ ａ ｐｕｌｓｅ−ｗｉｄｔｈ ｍｅｄｕｌａｔｉｏｎ ｍｅｔｈｏｄ”，Ｅｌｅｃｔｒｏｎｉｃｓ Ｌｅｔｔｅｒｓ，３３［１６］（１９９７．７．３１），（Ｅｎｇｌａｎｄ），Ｔｈｅ Ｉｎｓｔｉｔｕｔｉｏｎ ｏｆ Ｅｌｅｃｔｒｉｃａｌ Ｅｎｇｉｎｅｅｒｓ，Ｐ．１３５１−１３５２
Attorney, Agent or Firm:
Takehiko Suzue (5 outside)