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1. 发明授权

US5349694A Radio relay system with a multiplex separation circuit and control for providing time delay multiplex operation of receiver and transmitter 失效
标题翻译：具有复用分离电路的无线电中继系统和用于提供接收机和发射机的时间延迟复用操作的控制
公开(公告)号：US5349694A
公开(公告)日：1994-09-20
申请号：US91447
申请日：1993-07-15
申请人： Minori Kawano , Kohji Ogawa , Sadayuki Tsukagoshi , Hiroyuki Kuroiwa , Masato Sato , Yasuhiro Ishizaki , Fumiaki Komatsu , Eiichi Kuroda
发明人： Minori Kawano , Kohji Ogawa , Sadayuki Tsukagoshi , Hiroyuki Kuroiwa , Masato Sato , Yasuhiro Ishizaki , Fumiaki Komatsu , Eiichi Kuroda
IPC分类号： H04J3/00 , H01Q9/28 , H04B1/52 , H04B7/155 , H04B7/26 , H04B7/15 , H04J3/16 , H04L1/02 , H04M11/00
CPC分类号： H04B7/2606 , H01Q9/28 , H04B1/525
摘要： A radio relay system which comprising an external conductor, a first antenna installed on the externals conductor for transmitting and receiving a first radio carrier wave, a second antenna installed on the external conductor for transmitting and receiving a second radio carrier wave, a skirt provided around the second antenna, the skirt having a length equal to a quarter of the wavelength of the second radio carrier signal, and a relay device which includes a branching filter for extracting a part of the second radio carrier wave as a carrier wave, an adjusting unit for adjusting the amplitude and phase of the carrier wave extracted by the branching filter, and a combining unit for combining the carrier wave extracted by the branching filter with the second radio carrier wave received through the first antenna, and the relay device transmitting as the second radio carrier through the second antenna the first radio carrier wave received through the first antenna.
摘要翻译：一种无线电中继系统，其包括外部导体，安装在外部导体上用于发送和接收第一无线电载波的第一天线，安装在外部导体上用于发送和接收第二无线电载波的第二天线，围绕所述第二天线，所述裙部的长度等于所述第二无线电载波信号的波长的四分之一;以及中继装置，其包括用于提取所述第二无线电载波的一部分作为载波的分波器滤波器，所述调整单元用于调整由分支滤波器提取的载波的幅度和相位;以及组合单元，用于将由分波器滤波器提取的载波与通过第一天线接收的第二无线电载波组合，并且中继装置作为第二个发送通过第二天线的无线电载波通过第一天线接收的第一无线电载波。

2. 发明授权

US5369782A Radio relay system, including interference signal cancellation 失效
标题翻译：无线中继系统，包括干扰信号消除
公开(公告)号：US5369782A
公开(公告)日：1994-11-29
申请号：US91444
申请日：1993-07-15
申请人： Minori Kawano , Kohji Ogawa , Sadayuki Tsukagoshi , Hiroyuki Kuroiwa , Masato Sato , Yasuhiro Ishizaki , Fumiaki Komatsu , Eiichi Kuroda
发明人： Minori Kawano , Kohji Ogawa , Sadayuki Tsukagoshi , Hiroyuki Kuroiwa , Masato Sato , Yasuhiro Ishizaki , Fumiaki Komatsu , Eiichi Kuroda
IPC分类号： H04J3/00 , H01Q9/28 , H04B1/52 , H04B7/155 , H04B7/26 , H04B7/14
CPC分类号： H04B7/2606 , H01Q9/28 , H04B1/525
摘要： A radio relay system including a water-proof conductor housing on which is located a pair of antennas, one antenna being used for transmitting and receiving radio carrier wave signals of a first and a second frequency, respectively, while the other antenna is used for transmitting and receiving radio carrier wave signals of a third and a fourth frequency, respectively. A skirt for each of the antennas is located adjacent the antennas on the housing, one skirt has a length equal to a quarter of the wavelength of the first frequency while the other skirt has a length equal to a quarter wavelength of the third frequency. A relay circuit is located in the housing which includes circuitry for extracting and combining a portion of the radio carrier wave signals of the first and the third frequencies respectively radiated from the two antennas with the radio carrier wave signals of the first and third frequencies respectively received by the opposite antenna of the pair of antennas for cancelling unwanted local interference therebetween.
摘要翻译：一种无线电中继系统，包括位于一对天线的防水导体外壳，一个天线分别用于发送和接收第一和第二频率的无线电载波信号，而另一个天线用于发射以及分别接收第三和第四频率的无线电载波信号。每个天线的裙部位于壳体上的天线附近，一个裙部具有等于第一频率的波长的四分之一的长度，而另一个裙部具有等于第三频率的四分之一波长的长度。一个继电器电路位于壳体中，该电路包括用于提取和组合分别从两个天线辐射的第一和第三频率的无线电载波信号的一部分和分别接收到的第一和第三频率的无线电载波信号的电路通过该对天线的相对天线来消除它们之间的不期望的局部干扰。

3. 发明授权

US5267297A Base station for a radio communication system 失效
标题翻译：基站用于无线电通信系统
公开(公告)号：US5267297A
公开(公告)日：1993-11-30
申请号：US743973
申请日：1991-08-12
申请人： Minori Kawano , Kohji Ogawa , Sadayuki Tsukagoshi , Hiroyuki Kuroiwa , Masato Sato , Yasuhiro Ishizaki , Fumiaki Komatsu , Eiichi Kuroda
发明人： Minori Kawano , Kohji Ogawa , Sadayuki Tsukagoshi , Hiroyuki Kuroiwa , Masato Sato , Yasuhiro Ishizaki , Fumiaki Komatsu , Eiichi Kuroda
IPC分类号： H04J3/00 , H01Q9/28 , H04B1/52 , H04B7/155 , H04B7/26 , H04M11/00 , H01Q1/24 , H01Q1/42 , H01Q9/16
CPC分类号： H04B7/2606 , H01Q9/28 , H04B1/525
摘要： A base station for a mobile communications system including an antenna for transmitting a radio carrier wave to a mobile communications device and receiving signals therefrom, a coaxial external conductor including a skirt in the form of a sun shade having a length equal to a quarter wavelength of the radio carrier wave, a radio section located inside the coaxial external conductor for providing radio communication with the mobile communication device via the antenna, and a connecting section connecting the radio section to a telephone line and where the antenna is configured in the form of an upper disk of a discone antenna and where the skirt is a lower conical member of the discone antenna.
摘要翻译：一种用于移动通信系统的基站，包括用于向移动通信设备发送无线电载波并从其接收信号的天线，包括长度等于四分之一波长的太阳帘子形状的裙部的同轴外部导体无线电载波，位于同轴外部导体内的无线电部分，用于经由天线提供与移动通信装置的无线电通信，以及将无线电部分连接到电话线的连接部分，其中天线被配置为该盘状天线的上部盘，并且裙部是该盘状天线的下部锥形构件。

4. 发明授权

US5920236A Oscillator circuit having a power control element to initiate oscillation in a shortened time period 失效
标题翻译：振荡器电路具有功率控制元件以在缩短的时间段内启动振荡
公开(公告)号：US5920236A
公开(公告)日：1999-07-06
申请号：US914779
申请日：1997-08-20
申请人： Yasuhiro Ishizaki
发明人： Yasuhiro Ishizaki
IPC分类号： H03B5/12 , H03B5/06 , H03B5/36 , H04B1/40
CPC分类号： H03B5/06 , H03B5/362 , H03B2200/0082 , H03B2200/0094
摘要： An oscillator usable for a TDMA type wireless mobile communication device in which an average current at the communication terminal is decreased. The oscillator has a switching circuit or a timing circuit which controls an operating current of an amplifying element 8 for oscillation and reduces an average current in a TDMA operation without changing a voltage applied to a passive element constituting the oscillator. In particular, before initiating oscillation, elements in a negative impedance circuit are charged with a current of a value which does not cause the oscillation of the oscillator, and at the time of initiating the oscillation, a current capable of oscillating the oscillator is supplied to the negative impedance circuit.
摘要翻译：一种可用于TDMA型无线移动通信设备的振荡器，其中通信终端的平均电流减小。振荡器具有切换电路或定时电路，其控制用于振荡的放大元件8的工作电流，并且在不改变施加到构成振荡器的无源元件的电压的情况下降低TDMA操作中的平均电流。特别地，在启动振荡之前，负阻抗电路中的元件以不引起振荡器振荡的值的电流充电，并且在启动振荡时，能够振荡振荡器的电流被提供给负阻抗电路。

5. 发明授权

US4489283A Power amplifier 失效
标题翻译：功率放大器
公开(公告)号：US4489283A
公开(公告)日：1984-12-18
申请号：US343769
申请日：1982-01-28
申请人： Yasuhiro Ishizaki
发明人： Yasuhiro Ishizaki
IPC分类号： H03F1/32 , H03F3/20 , H03F3/30
CPC分类号： H03F3/3077 , H03F1/3217
摘要： A power amplifier comprises a power amplifying element for driving a load wherein a forward bias voltage applied between an input terminal and an output terminal of said power amplifying element which varies depending upon an output current of said power amplifying element, is detected and converted into a calibration current to feed back the current to the input terminal of said power amplifying element to calibrate variation of the forward bias voltage of said power amplifying element in linear variation in full cycle of input signal given by a signal source and to prevent cut-off of said power amplifying element in full cycle.
摘要翻译：功率放大器包括用于驱动负载的功率放大元件，其中检测到根据所述功率放大元件的输出电流而变化的施加在所述功率放大元件的输入端子和输出端子之间的正向偏置电压，并将其转换为校准电流以将电流反馈到所述功率放大元件的输入端子，以校准所述功率放大元件的正向偏置电压在由信号源给出的输入信号的全周期的线性变化中的变化，并且防止所述功率放大元件处于全周期。

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