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1. 发明公开

EP0409277A2 Frequency modulator 失效
标题翻译： Frequenzmodulator。
公开(公告)号：EP0409277A2
公开(公告)日：1991-01-23
申请号：EP90113978.2
申请日：1990-07-20
申请人： SANYO ELECTRIC CO., LTD.
发明人： Miura, Katsunori
IPC分类号： H03C3/06 , H03L7/02 , H03C3/09
CPC分类号： H03C3/095 , H03C3/06 , H03C2200/005 , H03L7/02
摘要： A frequency modulator is formed in a monolithic integrated circuit as a whole. A direct current signal from a center frequency control circuit and an alternating current signal from a voltage controlled amplifier (VCA) which receives a modulation signal and outputs the alternating current signal are applied to a control input of a voltage controlled oscillator (VCO). A center frequency (Fo) of the VCO is determined by the direct current signal from the center frequency control circuit and a frequency deviation amount (Δ f) of the VCO is determined by the alternating current signal from the VCA, and therefore, a frequency-modulated signal of Fo + Δ f can be outputted from the VCO. The direct current signal from the center frequency control circuit is also applied to a control input of the VCA, and therefore, the center frequency of the VCO as well as an amplitude of the alternating current signal, that is, the frequency deviation amount can be controlled by only the direct current signal.
摘要翻译：整体地，在单片集成电路中形成频率调制器。来自中心频率控制电路的直流信号和来自接收调制信号并输出交流信号的压控放大器（VCA）的交流信号被施加到压控振荡器（VCO）的控制输入。 VCO的中心频率（Fo）由来自中心频率控制电路的直流信号确定，并且VCO的频率偏差量（DELTA f）由来自VCA的交流信号确定，因此频率可以从VCO输出Fo + DELTA f的调制信号。来自中心频率控制电路的直流信号也被施加到VCA的控制输入，因此VCO的中心频率以及交流信号的振幅，即频率偏差量可以是仅由直流信号控制。

2. 发明公开

EP0409277A3 Frequency modulator 失效
标题翻译：频率调制器
公开(公告)号：EP0409277A3
公开(公告)日：1991-05-29
申请号：EP90113978.2
申请日：1990-07-20
申请人： SANYO ELECTRIC CO., LTD.
发明人： Miura, Katsunori
IPC分类号： H03C3/06 , H03L7/02 , H03C3/09
CPC分类号： H03C3/095 , H03C3/06 , H03C2200/005 , H03L7/02
摘要： A frequency modulator is formed in a monolithic integrated circuit as a whole. A direct current signal from a center frequency control circuit and an alternating current signal from a voltage controlled amplifier (VCA) which receives a modulation signal and outputs the alternating current signal are applied to a control input of a voltage controlled oscillator (VCO). A center frequency (Fo) of the VCO is determined by the direct current signal from the center frequency control circuit and a frequency deviation amount (Δ f) of the VCO is determined by the alternating current signal from the VCA, and therefore, a frequency-modulated signal of Fo + Δ f can be outputted from the VCO. The direct current signal from the center frequency control circuit is also applied to a control input of the VCA, and therefore, the center frequency of the VCO as well as an amplitude of the alternating current signal, that is, the frequency deviation amount can be controlled by only the direct current signal.

3. 发明公开

EP0408238A2 A frequency synthesiser 有权转让
标题翻译： Frequenzsynthesierer。
公开(公告)号：EP0408238A2
公开(公告)日：1991-01-16
申请号：EP90307270.0
申请日：1990-07-03
申请人： PLESSEY SEMICONDUCTORS LIMITED
发明人： Johnson, David Antony
IPC分类号： H03C3/09 , H03L7/197 , H04L27/20
CPC分类号： H03C3/0975 , H03C3/02 , H03C3/06 , H03C3/0925 , H03C3/0933 , H03C3/0941 , H03C3/095 , H03C2200/0029 , H03L7/197 , H04L27/2017
摘要： A frequency synthesiser comprising a phase locked loop having a reference oscillator (8) coupled to a first input of a comparator (6), a voltage controlled oscillator (VCO) (2) for providing an output signal, which output signal is fed back by way of a divider circuit (4) or dividing the output fequency by a factor N to a second input of said comparator, the output of the comparator being applied to a control input of the VCO, and including input means for applying a modulating signal in binary format via integrator means (26) for control of the divider circuit, and means having a predetermined transfer function (22) coupling said modulating signal to the control input of the VCO whereby to provide a modulation of the output signal in desired format.
摘要翻译：一种频率合成器，包括具有耦合到比较器（6）的第一输入的参考振荡器（8）的锁相环，用于提供输出信号的压控振荡器（VCO）（2），所述输出信号由除法器电路（4）的方式或将输出倍数除以因子N到所述比较器的第二输入端，比较器的输出被施加到VCO的控制输入，并且包括用于将调制信号施加到通过用于控制分频器电路的积分器装置（26）的二进制格式，以及具有将所述调制信号耦合到VCO的控制输入的预定传递函数（22）的装置，从而提供所需格式的输出信号的调制。

4. 发明公开

EP0357996A1 Frequency modulator utilizing frequency synthesizer 失效
标题翻译： Einen Synthesierer verwendender频率调制器。
公开(公告)号：EP0357996A1
公开(公告)日：1990-03-14
申请号：EP89114902.3
申请日：1989-08-11
申请人： NEC CORPORATION
发明人： Kojima, Tatsuru c/o NEC Corporation
IPC分类号： H03C3/09
CPC分类号： H03C3/095 , H03B5/1847 , H03C3/06 , H03C3/22 , H03C2200/0033 , H03C2200/005 , H03C2200/0079
摘要： The frequency modulator utilizing a frequency synthesizer comprises a voltage controlled oscillator (VCO-2), a programable frequency divider (4), a reference oscillator (8), a phase comparator and a phase locked loop. The VCO (2) comprises a first variable capacitor (24) receiving the control voltage from the phase comparator (6) and a second variable capacitor (26) receiving an input modulation signal. A bias circuit controls a bias to be supplied to the second variable capacitor (26) in accordance with the control voltage delivered from the phase comparator (6). An undesirable change of the modulation sensitivity due to difference of the oscillation frequency is compensated by controlling the reverse bias to be applied to the second variable capacitor (26) receiving the input modulation signal depending on the frequency control voltage for the VCO (2).
摘要翻译：利用频率合成器的频率调制器包括压控振荡器（VCO-2），可编程分频器（4），参考振荡器（8），相位比较器和锁相环。 VCO（2）包括从相位比较器（6）接收控制电压的第一可变电容器（24）和接收输入调制信号的第二可变电容器（26）。偏置电路根据从相位比较器（6）发送的控制电压控制要提供给第二可变电容器（26）的偏置。通过根据VCO（2）的频率控制电压控制接收输入调制信号的第二可变电容器（26）的反向偏置来补偿由于振荡频率的差异引起的调制灵敏度的不期望的改变。

5. 发明授权

EP0423941B1 Variable frequency signal generator 失效
标题翻译：发电机的可变频率信号
公开(公告)号：EP0423941B1
公开(公告)日：1997-11-26
申请号：EP90310223.4
申请日：1990-09-19
申请人： MARCONI INSTRUMENTS LIMITED
发明人： Owen, David Paul , Wells, John Norman
IPC分类号： H03C3/09 , H03B23/00
CPC分类号： H03C3/0991 , H03B23/00 , H03B2200/0092 , H03C3/06 , H03C3/0925 , H03C3/0933 , H03C3/0941 , H03C3/095 , H03C2200/0029 , H03C2200/005 , H03C2200/0079

6. 发明公开

EP0708522A1 Phase modulator capable of individually defining modulation degree and modulation frequency 失效
标题翻译：相位调制器，它gestättet分别地确定调制频率和Modultionshub
公开(公告)号：EP0708522A1
公开(公告)日：1996-04-24
申请号：EP95115947.4
申请日：1995-10-10
申请人： ANRITSU CORPORATION
发明人： Etsuji, Mesuda , Osamu, Tagiri
IPC分类号： H03C3/06
CPC分类号： H03C3/06
摘要： An FM signal generator (13) generates an FM signal obtained by frequency-modulating a reference frequency signal with a modulating frequency signal. A first mixer (12) mixes the FM signal and an input signal having a predetermined carrier frequency and outputs a pair of frequency signals having sum and difference frequencies thereof. A first signal extracting unit (17) extracts one of the pair of frequency signals as an intermediate frequency signal. A delay circuit (18) delays the extracted intermediate frequency signal by a predetermined time. A second mixer (16) mixes the delayed intermediate frequency signal and the FM signal and outputs a pair of frequency signals having sum and difference frequencies. A second signal extracting unit (19) extracts the frequency signal of the pair of frequency signals which corresponds to the carrier frequency component as a phase-modulated signal. The modulation degree and modulation frequency in phase modulation for the phase-modulated signal can be set in wide ranges.
摘要翻译：一个FM信号发生器（13）生成由频率调制的频率调制信号的参考频率信号而获得的FM信号的速率。第一混频器（12），混合具有预定载波频率的FM信号，并且输入信号和输出一对具有其和与差的频率信号的频率的。第一信号提取部（17）提取所述对频率信号的，以中频信号中的一个。延迟电路（18）延迟预定时间所提取的中频信号。的第二混频器（16）混合的延迟中频信号和FM信号，并输出一对具有和与差的频率信号的频率的。第二信号提取部（19）提取所述对频率信号的哪一个对应于载波频率分量作为相位调制信号的频率信号。用于相位调制的信号在相位调制的调制度和调制频率可以在宽的范围内设定。

7. 发明授权

EP0408238B1 A frequency synthesiser 有权转让
标题翻译：频率合成器
公开(公告)号：EP0408238B1
公开(公告)日：1996-03-27
申请号：EP90307270.0
申请日：1990-07-03
申请人： PLESSEY SEMICONDUCTORS LIMITED
发明人： Johnson, David Antony
IPC分类号： H03C3/09 , H03L7/197 , H04L27/20
CPC分类号： H03C3/0975 , H03C3/02 , H03C3/06 , H03C3/0925 , H03C3/0933 , H03C3/0941 , H03C3/095 , H03C2200/0029 , H03L7/197 , H04L27/2017

8. 发明公开

EP0536660A1 Process for broadening the frequency response band of a voltage-controlled crystal oscillator and associated circuit 失效转让
标题翻译：一种用于电压控制晶体振荡电路和mitverbundene的通频带宽度的扩展处理。
公开(公告)号：EP0536660A1
公开(公告)日：1993-04-14
申请号：EP92116928.0
申请日：1992-10-02
申请人： SIEMENS TELECOMUNICAZIONI S.P.A.
发明人： Casanova, Mauro , Ferrucci, Luca
IPC分类号： H03L7/081 , H03C3/06
CPC分类号： H03L7/081 , H03C3/06
摘要： Process for broadening the frequency response band of a voltage-controlled crystal oscillator (VXCO) to be inserted in a phase-locked loop (PLL) used for recovery of the clock signal from a string of data transiting on optical fibre. The process consists primarily of low-pass filtering of the control signal of the VCXO and using the filtered signal to control the VCXO and a phase modulator to which arrives the signal generated by the VCXO. The cut-off frequency of the filter and the gains of the VCXO and modulator have values such that the output signal from the modulator consists mainly of the signal generated by the VCXO, as long as the frequency response thereof holds constant, or of the signal generated by the phase modulated VCXO, otherwise. The circuit which achieves the above process is also described.
摘要翻译：在用于所述时钟信号的恢复从数据过渡上光纤的串的锁相环（PLL）被插入用于加宽的电压控制晶体振荡器（VCXO）的频率响应频带的过程。过程besteht主要的VCXO的控制信号的低通滤波，并使用经滤波的信号，以控制VCXO和一个相位调制器，向其中在由VCXO产生的信号到达。在过滤器和VCXO和调制器的增益的截止频率具有值检查确实来自调制器besteht主要由VCXO产生的信号的输出信号，只要该频率响应它们保持恒定，或信号的另外由相位调制VCXO生成。因此描述一种实现上述方法的电路。

9. 发明公开

EP0423941A3 Variable frequency signal generator 失效
标题翻译：可变频率信号发生器
公开(公告)号：EP0423941A3
公开(公告)日：1991-05-29
申请号：EP90310223.4
申请日：1990-09-19
申请人： MARCONI INSTRUMENTS LIMITED
发明人： Owen, David Paul , Wells, John Norman
IPC分类号： H03C3/09 , H03B23/00
CPC分类号： H03C3/0991 , H03B23/00 , H03B2200/0092 , H03C3/06 , H03C3/0925 , H03C3/0933 , H03C3/0941 , H03C3/095 , H03C2200/0029 , H03C2200/005 , H03C2200/0079
摘要： A variable frequency signal generator includes a phase locked loop having a variable frequency oscillator (1) which has a control port to which a frequency determining signal is applied, the output of the oscillator being fed via a frequency divider (6) to a phase sensitive detector (7) where it is compared with a reference frequency signal, the result of said comparison being arranged to generate a comparison signal which is fed to a loop filter (9) which is coupled to said control port; and the signal generator including means for applying a frequency control signal thereto comprising a first path being arranged to adjust the division ratio of the frequency divider (6), and a second path including means for combining said frequency control signal and said comparison signal to produce said frequency determining signal; and calibration means (11-14) for adjusting the relative characteristics of said first and second paths to compensate for effects arising from tuning sensitivity dependence on frequency of said variable frequency generator (1).

10. 发明公开

EP0423941A2 Variable frequency signal generator 失效
标题翻译：发电机mit variablem Frequenzsignal。
公开(公告)号：EP0423941A2
公开(公告)日：1991-04-24
申请号：EP90310223.4
申请日：1990-09-19
申请人： MARCONI INSTRUMENTS LIMITED
发明人： Owen, David Paul , Wells, John Norman
IPC分类号： H03C3/09 , H03B23/00
CPC分类号： H03C3/0991 , H03B23/00 , H03B2200/0092 , H03C3/06 , H03C3/0925 , H03C3/0933 , H03C3/0941 , H03C3/095 , H03C2200/0029 , H03C2200/005 , H03C2200/0079
摘要： A variable frequency signal generator includes a phase locked loop having a variable frequency oscillator (1) which has a control port to which a frequency determining signal is applied, the output of the oscillator being fed via a frequency divider (6) to a phase sensitive detector (7) where it is compared with a reference frequency signal, the result of said comparison being arranged to generate a comparison signal which is fed to a loop filter (9) which is coupled to said control port; and the signal generator including means for applying a frequency control signal thereto comprising a first path being arranged to adjust the division ratio of the frequency divider (6), and a second path including means for combining said frequency control signal and said comparison signal to produce said frequency determining signal; and calibration means (11-14) for adjusting the relative characteristics of said first and second paths to compensate for effects arising from tuning sensitivity dependence on frequency of said variable frequency generator (1).
摘要翻译：可变频率信号发生器包括具有可变频率振荡器（1）的锁相环，该可变频率振荡器（1）具有施加频率确定信号的控制端口，振荡器的输出经由分频器（6）馈送到相位敏感检测器（7），其中与参考频率信号进行比较，所述比较的结果被布置为产生馈送到耦合到所述控制端口的环路滤波器（9）的比较信号; 并且所述信号发生器包括用于施加频率控制信号的装置，包括布置成调整分频器（6）的分频比的第一路径，以及包括用于组合所述频率控制信号和所述比较信号的装置的第二路径，所述频率确定信号; 以及用于调节所述第一和第二路径的相对特性的校准装置（11-14），以补偿由所述可变频率发生器（1）的频率的调谐灵敏度所引起的影响。

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