SIGNAL GENERATION DEVICE AND SIGNAL GENERATION METHOD

• Main Authors: KUNIHIRO KAZUAKI, HORI SHINICHI, SOMA TATSUYA
• Format: Patent
• Language: English; Japanese
• Published: 24.06.2019
• Subjects: AMPLIFIERS; BASIC ELECTRONIC CIRCUITRY; CODE CONVERSION IN GENERAL; CODING; DECODING; ELECTRICITY

To provide a signal generation device and signal generation method for generating a signal of a high SN ratio while reducing a switching frequency.SOLUTION: A signal generation device includes: delay means for delaying an output signal; difference means for obtaining a difference between an input signal and a signal from the delay means; addition means; integration means for integrating an output from the addition means; comparison means for discretizing an output from the integration means and generating an output signal; and feedback means for supplying a signal indicating a change state of an output signal from the comparison means to the addition means, and allowing the addition means to add the signal to a signal from the difference means.SELECTED DRAWING: Figure 1 【課題】スイッチング回数を低減しつつ、信号対雑音比の高い信号を生成する信号生成装置、及び信号生成方法を提供する。【解決手段】信号生成装置は、出力信号を遅延させる遅延手段と、入力信号と上記遅延手段からの信号との差分を取る差分手段と、加算手段と、上記加算手段からの出力を積分する積分手段と、上記積分手段からの出力を離散化して上記出力信号を生成する比較手段と、上記比較手段からの上記出力信号の変化状態を示す信号を上記加算手段に供給して、上記加算手段で上記差分手段からの信号と上記加算手段で加算させる帰還手段と、を含む。【選択図】 図１