Radio communication terminal and gain control circuit for the same
    1.
    发明授权
    Radio communication terminal and gain control circuit for the same 失效
    无线通信终端和增益控制电路相同

    公开(公告)号:US07430405B2

    公开(公告)日:2008-09-30

    申请号:US11220584

    申请日:2005-09-08

    申请人: Mikio Hayashihara

    发明人: Mikio Hayashihara

    IPC分类号: H04B1/16

    CPC分类号: H03G3/3042 H03G3/3047

    摘要: A gain control circuit has a transmission power amplifier that amplifies a transmission signal to a predetermined level. An adjacent channel leak power ratio monitor finds a ratio of a distortion element corresponding to an adjacent channel leak power to a main element from an output signal supplied from the transmission power amplifier, and outputs the found ratio as an ACPR monitor value. A power supply control section variously controls power supply to the transmission power amplifier with use of the ACPR monitor value supplied from the adjacent channel leak power ratio monitor. A transmission signal level variable section controls a gain of a transmission signal path on the basis of a transmission level monitor value supplied from the adjacent channel leak power ratio monitor, thereby varying a level of the transmission signal.

    摘要翻译: 增益控制电路具有将发送信号放大到预定电平的发送功率放大器。 相邻信道泄漏功率比监视器从根据从发送功率放大器提供的输出信号中找到与相邻信道泄漏功率相对应的失真元件的比率,并将所发现的比率输出为ACPR监视值。 电源控制部分使用从相邻通道泄漏功率比监视器提供的ACPR监视值,各种控制对发射功率放大器的电力供应。 传输信号电平可变部分基于从相邻信道泄漏功率比监视器提供的传输电平监视值来控制传输信号路径的增益,由此改变传输信号的电平。

    Radio communication terminal and gain control circuit for the same

    公开(公告)号:US07031682B2

    公开(公告)日:2006-04-18

    申请号:US10085735

    申请日:2002-03-01

    申请人: Mikio Hayashihara

    发明人: Mikio Hayashihara

    IPC分类号: H04B1/16

    CPC分类号: H03G3/3042 H03G3/3047

    摘要: A gain control circuit has a transmission power amplifier that amplifies a transmission signal to a predetermined level. An adjacent channel leak power ratio monitor finds a ratio of a distortion element corresponding to an adjacent channel leak power to a main element from an output signal supplied from the transmission power amplifier, and outputs the found ratio as an ACPR monitor value. A power supply control section variously controls power supply to the transmission power amplifier with use of the ACPR monitor value supplied from the adjacent channel leak power ratio monitor. A transmission signal level variable section controls a gain of a transmission signal path on the basis of a transmission level monitor value supplied from the adjacent channel leak power ratio monitor, thereby varying a level of the transmission signal.

    Radio transmitter-receiver, high-frequency radio receiver, and control unit
    3.
    发明授权
    Radio transmitter-receiver, high-frequency radio receiver, and control unit 失效
    无线电收发机,高频无线电接收机和控制单元

    公开(公告)号:US06766156B1

    公开(公告)日:2004-07-20

    申请号:US09424148

    申请日:1999-11-19

    申请人: Mikio Hayashihara

    发明人: Mikio Hayashihara

    IPC分类号: H04B110

    摘要: A low-noise amplifier 500a having low-distortion characteristics (low distortion LNA), a low-noise amplifier 500b of a low current consumption type(low current consumption LNA), and radio-frequency switches 502 and 509 for selectively switching either of them are provided in a receiving radio-frequency unit 103. On the basis of a mode changing control function of a CPU 113, an LNA switch control signal AS is generated so that the low-distortion LNA 500a is selected during a period in which the operation of a radio transmitter-receiver is in a transmitting/receiving state, and that the low current consumption LNA 500b is selected in a period of a standby state, and thus the switching of the radio-frequency switches 502 and 509 of a low-noise amplifier circuit section 501 is controlled.

    摘要翻译: 具有低失真特性的低噪声放大器500a(低失真LNA),低电流消耗型(低电流消耗LNA)的低噪声放大器500b,以及用于选择性地切换其中任何一个的射频开关502和509 设置在接收射频单元103中。基于CPU 113的模式改变控制功能,生成LNA切换控制信号AS,使得在操作的时段期间选择低失真LNA 500a 无线电发射机 - 接收机处于发射/接收状态,并且在待机状态的周期内选择低电流消耗LNA 500b,因此低频开关502和509的低噪声 放大电路部501被控制。

    Systems and methods for controlling transmission power to reduce frequency interference
    4.
    发明授权
    Systems and methods for controlling transmission power to reduce frequency interference 失效
    用于控制传输功率以减少频率干扰的系统和方法

    公开(公告)号:US06898412B2

    公开(公告)日:2005-05-24

    申请号:US09810668

    申请日:2001-03-19

    申请人: Mikio Hayashihara

    发明人: Mikio Hayashihara

    摘要: For use in a radiocommunication system using a frequency band close to a frequency band of a different radiocommunication system, a radiocommunication device, or a mobile, is controlled so that a maximum of transmission power is set according to an up-link frequency in use. The closer the up-link frequency in use is to the frequency band of the different radiocommunication system, the lower the maximum of transmission power is set.

    摘要翻译: 为了在使用接近不同无线电通信系统的频带的频带的无线电通信系统中使用无线电通信装置或移动台,以便根据使用的上行链路频率来设置最大发送功率。 使用的上行链路频率越接近不同无线电通信系统的频带,则设置发射功率的最大值越低。

    Printed circuit board design device
    5.
    发明授权
    Printed circuit board design device 失效
    印刷电路板设计装置

    公开(公告)号:US06219820B1

    公开(公告)日:2001-04-17

    申请号:US09020405

    申请日:1998-02-09

    IPC分类号: G06F1540

    CPC分类号: G06F17/5068

    摘要: In a design of the printed circuit board design device, a signal wire name is affixed to each wiring of a circuit, thereby making it quite easy to go through confirmation works after the design works are thoroughly accomplished. The present invention aims at improving efficiency of works for affixing the signal wire name. For this purpose, the signal wire names are input for each desired area of the circuit. By taking full advantage of overlap of the area concerned, the signal wire names connected in serial form are affixed to one wiring. The candidates of the signal wire names to be affixed are tabulated as a list. After the signal wire names are affixed to each wiring of the circuit, the wiring can be retrieved and shown in visible display. In this case too, the candidates of the signal wire names to be retrieved can be tabulated as a list.

    摘要翻译: 在印刷电路板设计装置的设计中,在电路的每个布线上附加信号线名称,从而使设计工作完成后很容易进行确认工作。 本发明旨在提高固定信号线名称的工作效率。 为此,为电路的每个所需区域输入信号线名称。 通过充分利用有关区域的重叠,以串行形式连接的信号线名称贴在一个布线上。 要附加的信号线名称的候选人列表列表。 在信号线名称固定在电路的每个接线上后,可以检索接线并显示在可见的显示屏上。 在这种情况下,要检索的信号线名称的候选者可以列表列表。

    Phase detecting method and phase detector and FM receiver using phase
detecting method
    6.
    发明授权
    Phase detecting method and phase detector and FM receiver using phase detecting method 失效
    相位检测方法和相位检测器和FM接收机采用相位检测方法

    公开(公告)号:US5517689A

    公开(公告)日:1996-05-14

    申请号:US87062

    申请日:1993-07-07

    申请人: Mikio Hayashihara

    发明人: Mikio Hayashihara

    IPC分类号: H03D3/00 H03D3/06 H04B1/16

    CPC分类号: H03D3/009

    摘要: A phase detection system in which an original modulation signal is detected from a first complex baseband signal obtained through orthogonal demodulation of an FM signal and output, a second complex baseband signal having cosine and sine components of a phase change .DELTA..phi. of the first complex baseband signal in a predetermined time interval .tau. is rotated until a rotation angle .theta. becomes .DELTA..phi., and rotation angle data indicative of the rotation angle .iota. is detected and output.

    摘要翻译: 一种相位检测系统,其中从通过FM信号的正交解调获得的第一复基带信号中检测原始调制信号并输出​​,具有第一复基带的相位变化DELTA phi的余弦和正弦分量的第二复基带信号 在预定时间间隔τ内的信号旋转直到旋转角θ变为DELTA phi,并且检测并输出表示旋转角度iota的旋转角度数据。

    Radio communication terminal and gain control circuit for the same

    公开(公告)号:US20060003716A1

    公开(公告)日:2006-01-05

    申请号:US11220584

    申请日:2005-09-08

    申请人: Mikio Hayashihara

    发明人: Mikio Hayashihara

    IPC分类号: H01Q11/12 H04B1/04

    CPC分类号: H03G3/3042 H03G3/3047

    摘要: A gain control circuit has a transmission power amplifier that amplifies a transmission signal to a predetermined level. An adjacent channel leak power ratio monitor finds a ratio of a distortion element corresponding to an adjacent channel leak power to a main element from an output signal supplied from the transmission power amplifier, and outputs the found ratio as an ACPR monitor value. A power supply control section variously controls power supply to the transmission power amplifier with use of the ACPR monitor value supplied from the adjacent channel leak power ratio monitor. A transmission signal level variable section controls a gain of a transmission signal path on the basis of a transmission level monitor value supplied from the adjacent channel leak power ratio monitor, thereby varying a level of the transmission signal.

    Leak power ratio detection circuit, mobile communication terminal, and control circuit for mobile communication terminal
    8.
    发明授权
    Leak power ratio detection circuit, mobile communication terminal, and control circuit for mobile communication terminal 失效
    漏电功率比检测电路,移动通信终端,移动通信终端控制电路

    公开(公告)号:US06912377B2

    公开(公告)日:2005-06-28

    申请号:US09934675

    申请日:2001-08-23

    申请人: Mikio Hayashihara

    发明人: Mikio Hayashihara

    摘要: A squaring circuit squares a radio transmission signal. A band-pass filter extracts a spectrum component corresponding to a desired channel, from that low-frequency component of the output of the squaring circuit, which occurs with a center thereof being present near a DC (Direct Current). A level measuring circuit measures the level of the extracted spectrum component. On the other hand, another band-pass filter extracts, from the output of the squaring circuit, a spectrum component corresponding to spectrum spreading due to a distortion in a transmission circuit. Another level measuring circuit measures the level of this extracted spectrum component. A level radio measuring circuit measures a ratio between the level measured by the level measuring circuit and the level measured by the other level measuring circuit, and produces the measured result as a ratio of a leak power to an adjacent channel.

    摘要翻译: 平方电路使无线电传输信号正交。 带通滤波器从平方电路的输出的低频分量中提取对应于期望信道的频谱分量,其中心出现在DC(直流)附近。 电平测量电路测量提取的光谱分量的电平。 另一方面,另一带通滤波器从平方电路的输出中提取由于发送电路中的失真而对应于频谱扩展的频谱分量。 另一个电平测量电路测量该提取的频谱分量的电平。 电平无线电测量电路测量由电平测量电路测量的电平与由另一电平测量电路测量的电平之间的比率,并将测量结果作为泄漏功率与相邻通道的比率产生。

    FSK signal receiving device
    9.
    发明授权
    FSK signal receiving device 失效
    FSK信号接收装置

    公开(公告)号:US5373533A

    公开(公告)日:1994-12-13

    申请号:US839165

    申请日:1992-02-21

    IPC分类号: H04L27/14 H04L27/152

    CPC分类号: H04L27/1525

    摘要: An FSK signal receiving device is constituted by a first phase shifting circuit for applying a first phase shift to a first reception base band signal of first and second reception base band signals having orthogonal phases to generate a third base band signal, and generating a fourth base band signal having a phase orthogonal to the phase of the third base band signal, a second phase shifting circuit for applying the first phase shift to the second base band signal to generate a fifth reception base band signal, and a logical gate circuit for performing an exclusive OR operation on the third and fourth base band signals to obtain a first output signal, on the third and fifth base signals to obtain a second output signal, and on the first and second output signals to generate a detection signal.

    摘要翻译: FSK信号接收装置由用于对具有正交相位的第一和第二接收基带信号的第一接收基带信号施加第一相移以产生第三基带信号的第一相移电路构成,并且产生第四基带 具有与第三基带信号的相位正交的相位的频带信号;第二移相电路,用于将第一相移施加到第二基带信号以产生第五接收基带信号,以及逻辑门电路,用于执行 在第三和第四基带信号上进行异或运算以在第三和第五基本信号上获得第一输出信号以获得第二输出信号,并且在第一和第二输出信号上产生检测信号。