【発明の名称】近似3次関数発生装置及びこれを使用した温度補償水晶発振回路並びに温度補償方法

Title:

【発明の名称】近似3次関数発生装置及びこれを使用した温度補償水晶発振回路並びに温度補償方法

Document Type and Number:

Japanese Patent JP3233946

Kind Code:

B2

Abstract:

An approximate third-order function generator includes first, second, and third amplifiers, each receiving a common input signal and different fixed level signals. The three fixed level signals received respectively by the amplifiers sequentially increase in level. Each amplifier has an input-output characteristic whereby a non-inverted or inverted output signal is provided based on the common input signal and the fixed level signal. The fourth amplifier receives the same fixed level signal as the second amplifier and has an input-output characteristic in which a non-inverted or inverted output signal is provided based on the common input signal and the fixed level signal. The outputs of the first, third and fourth amplifiers have the same polarity, while that of the second amplifier is inverted. The output signals from the first, second, third and fourth amplifiers are added to generate a third-order function component free from the first-order component.

Inventors:

Kenji Nemoto

Application Number:

JP50204599A

Publication Date:

December 04, 2001

Filing Date:

June 01, 1998

Export Citation:

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