公开(公告)号：US4751469A

公开(公告)日：1988-06-14

申请号：US52968

申请日：1987-05-22

申请人： Junichi Nakagawa ,  Hidefumi Kimura ,  Yoshitomo Kuwamoto ,  Masanori Ienaka ,  Hideaki Watanabe

发明人： Junichi Nakagawa ,  Hidefumi Kimura ,  Yoshitomo Kuwamoto ,  Masanori Ienaka ,  Hideaki Watanabe

IPC分类号： H03K5/26 ,  G01R25/00 ,  H03L7/089 ,  H03L7/095 ,  H03K9/08

CPC分类号： G01R25/005 ,  H03L7/095 ,  H03L7/089

摘要： This invention relates to a phase coincidence detector for examining whether or not two input digital signals are coincident by utilizing a delay signal and an advance signal of a digital phase comparator which examines the phase difference between the two input digital signals and outputs the delay signal representing the delay of one of the input signals to the other and the advance signal representing the advance of one of the input signals to the other. Particularly, the output signals of the phase comparator, that is, the delay signal and the advance signal, are periodic pulse signals, and residual pulses having a small pulse width occur periodically even at the time of coincidence. The phase coincidence detector of this invention changes the delay and advance signals by a pulse width discrimination circuit for discriminating whether or not the phase difference between the two input signals is below a certain constant value, and samples the changed signals to output the in-phase and out-of-phase state as signals having different levels.

摘要翻译： 本发明涉及一种相位一致检测器，用于通过利用数字相位比较器的延迟信号和提前信号检查两个输入数字信号是否一致，数字相位比较器检查两个输入数字信号之间的相位差，并输出表示 将输入信号中的一个延迟到另一个的输入信号和表示其中一个输入信号的提前信号的延迟。 特别地，相位比较器的输出信号，即延迟信号和提前信号是周期脉冲信号，即使在重合时也会周期性地出现具有小脉冲宽度的残留脉冲。 本发明的相位一致检测器通过脉冲宽度鉴别电路来改变延迟和提前信号，用于鉴别两个输入信号之间的相位差是否低于一定的常数值，并对改变的信号进行采样以同相输出 和异相状态作为具有不同电平的信号。

公开(公告)号：US4743864A

公开(公告)日：1988-05-10

申请号：US922300

申请日：1986-10-23

申请人： Jun'ichi Nakagawa ,  Yoshitomo Kuwamoto ,  Hidefumi Kimura ,  Hideaki Watanabe ,  Masanori Ienaka

发明人： Jun'ichi Nakagawa ,  Yoshitomo Kuwamoto ,  Hidefumi Kimura ,  Hideaki Watanabe ,  Masanori Ienaka

IPC分类号： H03L7/08 ,  H03L7/14 ,  H03L7/199 ,  H03L7/18

CPC分类号： H03L7/14 ,  H03L7/0802 ,  H03L7/104 ,  H03L7/199 ,  H03L2207/08 ,  Y10T307/273 ,  Y10T307/297 ,  Y10T307/359 ,  Y10T307/375

摘要： In an intermittently operative phase-locked loop, in order to prevent the oscillator frequency from significantly changing at the time of turning on of an electric power source, a point in time at which a phase difference between clock signals respectively fed to a reference frequency divider and to a frequency divider for dividing the output frequency of a voltage-controlled oscillator becomes substantially zero is detected, and the two frequency dividers are initialized when the above-mentioned point in time is detected after turning on of the electric power source.

摘要翻译： 在间歇操作的锁相环中，为了防止在电源接通时振荡器频率显着变化的时间点，分别馈送到参考分频器的时钟信号之间的相位差 并且检测到用于分压电压控制振荡器的输出频率的分频器变得基本为零，并且当在电源接通之后检测到上述时间点时，两个分频器被初始化。

公开(公告)号：US4864634A

公开(公告)日：1989-09-05

申请号：US268253

申请日：1988-11-07

申请人： Junichi Nakagawa ,  Yoshitomo Kuwamoto

发明人： Junichi Nakagawa ,  Yoshitomo Kuwamoto

IPC分类号： H03L7/193 ,  H04B1/50 ,  H04B1/52

CPC分类号： H03L7/193 ,  H04B1/50 ,  H04B1/525

摘要： A radio communication apparatus capable of carrying out transmission and reception of signals at a time has a frequency synthesizer and a frequency modulator both in novel structures for removing interference between a local signal and a transmission signal. The frequency synthesizer has a local oscillator controlled by a first phase comparator for phase-comparing a frequency divided output of the local oscillator and a reference frequency signal to provide a local signal. The frequency division of the output of the local oscillator is effectd by a first frequency divider for dividing the frequency of the output of the local oscillator and a variable division ratio frequency divider for dividing the frequency of the output of the first frequency divider. The frequency modulator has a transmission oscillator controlled by a second phase comparator for phase-comparing the output of the first frequency divider and a frequency divided output of the transmission oscillator to provide a transmission signal. The frequency division of the output of the transmission oscillator is effected by a second frequency divider.

摘要翻译： 能够一次执行信号的发送和接收的无线电通信装置具有用于消除本地信号和发送信号之间的干扰的新颖结构的频率合成器和频率调制器。 频率合成器具有由第一相位比较器控制的本地振荡器，用于对本地振荡器的分频输出和参考频率信号进行相位比较，以提供本地信号。 本地振荡器的输出的分频由用于分频本地振荡器的输出频率的第一分频器和用于分频第一分频器的输出频率的可分分频分频器来实现。 频率调制器具有由第二相位比较器控制的发送振荡器，用于对第一分频器的输出和发送振荡器的分频输出进行相位比较，以提供发送信号。 传输振荡器的输出的分频由第二分频器实现。

公开(公告)号：US4777655A

公开(公告)日：1988-10-11

申请号：US935717

申请日：1986-11-28

申请人： Osamu Numata ,  Yoshitomo Kuwamoto ,  Hiroshi Shirai ,  Shinichi Hagiya

发明人： Osamu Numata ,  Yoshitomo Kuwamoto ,  Hiroshi Shirai ,  Shinichi Hagiya

IPC分类号： H04B7/26 ,  H03L7/08 ,  H03L7/199 ,  H04B1/40 ,  H04Q7/06 ,  H04Q7/18 ,  H04Q7/20 ,  H04Q7/28 ,  H04B1/16

CPC分类号： H04B1/401 ,  H03L7/0802 ,  H03L7/199

摘要： A necessary signal portion of a control signal transmitted from a land station of a mobile telecommunication system during an idle period thereof is received intermittently by a mobile station, with an initial unstable operation period of the mobile station occurring in a period of an unnecessary signal portion of the control signal and a subsequent stable operation period thereof occurring in a period of the necessary signal portion of the control signal.

摘要翻译： 在移动台的空闲期间，从移动电信系统的地面站发送的控制信号的必要信号部分由移动台间歇地接收，移动站的初始不稳定运行周期在不必要的信号部分的周期内发生 的控制信号及其随后的稳定运行周期发生在控制信号的必要信号部分的周期内。