schaltungsanordnung to generate an electric signal with the sum of or the difference of frequencies of two signals corresponding frequency problems due

• 1. 用于根据一个预定的传输时间协议传输一个确定的发射频率的无线电信号的发射设备 [P] . 中国专利： CN1204427A . 1999-01-06
• 2. 频率信号生成装置和频率信号生成系统 [P] . 中国专利： CN109428594A . 2019-03-05
• 3. schaltungsanordnung to generate an electric signal with the sum or the difference frequency of two signals corresponding to predetermined frequency [P] . ATA672178A . 1980-09-15

  机译： schaltungsanordnung生成一个电信号，其电信号的两个频率之和或差值与预定频率相对应

• 4. schaltungsanordnung to sums and difference of two low frequency signals for stereophonische one [P] . 德国专利： DE000001148270A . 1963-05-09

  机译： schaltungsanordnung求两个立体声信号的低频信号的和与差

• 5. METHOD OF GENERATING SUM AND DIFFERENCE FREQUENCY SIGNALS [P] . SU1100724A1 . 1984-06-30

  机译： 求和与差分频率信号的方法

• 1. Sensibility to Changes of Vibrational Modes of Excited Electron: Sum Frequency Signals Versus Difference Frequency Signals* [J] . GU An-Na, LIANG Xian-Ting 理论物理通讯（英文版） . 2011,第003期
• 2. Sensibility to Changes of Vibrational Modes of Excited Electron： Sum Frequency Signals Versus Difference Frequency Signals [J] . GU An-Na, LIANG Xian-Ting 理论物理通讯：英文版 . 2011,第003期
• 3. Micro-piezoelectric pulse diagnoser and frequency domain analysis of human pulse signals [J] . Hung Chang, Jiaxu Chen, Yueyun Liu 中医科学杂志（英文） . 2018,第001期
• 4. Micro-piezoelectric pulse diagnoser and frequency domain analysis of human pulse signals [J] . Hung Chang, Jiaxu Chen, Yueyun Liu 中医科学杂志(英文) . 2018,第001期
• 5. Pre-processing methods for parametric array to generate wideband difference frequency signals [C] . Songwen Li OCEANS 2008 . 2008
• 6. Non-classical export of signal peptide-less proteins studied via sum frequency spectroscopy and biochemical techniques [D] . Doyle, Andrew W. 2008
• 7. Nonlinear Maximization of the Sum-Frequency Component from Two Ultrasonic Signals in a Bubbly Liquid [O] . María Teresa Tejedor Sastre, Christian Vanhille 2020
• 8. A Method for Harmonic Measurement of Real Power Grid Signals with Frequency Drift using Instruments with Internally Generated Reference Frequency [O] . B.M. Antić, Z.L. Mitrović, V.V. Vujičić 2012
• 9. Improved Method of Resolving the Frequency Difference Between Two Very Accurate and Stable Frequency Signals [R] . Percival, R., Green, C. 1999

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