会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Transmission device and wireless communication apparatus
    • 传输设备和无线通信设备
    • US07664202B2
    • 2010-02-16
    • US11547354
    • 2006-02-02
    • Yoshihiro HaraToru Matsuura
    • Yoshihiro HaraToru Matsuura
    • H04L25/49
    • H03F3/24H03F1/02H03F1/0205H03F1/0227H03F3/72H03F2200/324H03F2200/451
    • In a first mode in which the power level of a transmission output signal (S6) is to be high, an output from the multiplier (2) is input to an amplitude modulation signal amplifier (4), and a radio frequency power amplifier (5) performs amplitude modulation on a radio frequency phase modulated signal (S4) using a nonlinear area with a supply voltage from the amplitude modulation signal amplifier (4). In a second mode in which the power level of a transmission output signal (S6) is to be low, the output from the multiplier (2) is input to a variable gain amplifier (7), and the variable gain amplifier (7) performs amplitude modulation on the radio frequency phase modulated signal (S4). The amplitude modulated signal is output without passing through the radio frequency power amplifier (5).
    • 在发送输出信号(S6)的功率电平为高的第一模式中,来自乘法器(2)的输出被输入到幅度调制信号放大器(4),射频功率放大器(5) )使用具有来自幅度调制信号放大器(4)的电源电压的非线性区域对射频相位调制信号(S4)进行幅度调制。 在发送输出信号(S6)的功率电平为低的第二模式中,来自乘法器(2)的输出被输入到可变增益放大器(7),并且可变增益放大器(7)执行 对射频相位调制信号进行幅度调制(S4)。 输出幅度调制信号而不通过射频功率放大器(5)。
    • 2. 发明申请
    • Transmission Device And Wireless Communication Apparatus
    • 传输设备和无线通信设备
    • US20070211820A1
    • 2007-09-13
    • US11547354
    • 2006-02-02
    • Yoshihiro HaraToru Matsuura
    • Yoshihiro HaraToru Matsuura
    • H04L25/49
    • H03F3/24H03F1/02H03F1/0205H03F1/0227H03F3/72H03F2200/324H03F2200/451
    • In a first mode in which the power level of a transmission output signal (S6) is to be high, an output from the multiplier (2) is input to an amplitude modulation signal amplifier (4), and a radio frequency power amplifier (5) performs amplitude modulation on a radio frequency phase modulated signal (S4) using a nonlinear area with a supply voltage from the amplitude modulation signal amplifier (4). In a second mode in which the power level of a transmission output signal (S6) is to be low, the output from the multiplier (2) is input to a variable gain amplifier (7), and the variable gain amplifier (7) performs amplitude modulation on the radio frequency phase modulated signal (S4). The amplitude modulated signal is output without passing through the radio frequency power amplifier (5).
    • 在发送输出信号(S 6)的功率电平为高的第一模式中,来自乘法器(2)的输出被输入到幅度调制信号放大器(4),射频功率放大器 5)使用具有来自幅度调制信号放大器(4)的电源电压的非线性区域对射频相位调制信号(S 4)进行幅度调制。 在发送输出信号(S 6)的功率电平为低的第二模式中,来自乘法器(2)的输出被输入到可变增益放大器(7),并且可变增益放大器(7) 对射频相位调制信号进行幅度调制(S 4)。 输出幅度调制信号而不通过射频功率放大器(5)。
    • 4. 发明授权
    • Transmission circuit and communication device
    • 传输电路和通信设备
    • US08055215B2
    • 2011-11-08
    • US12100856
    • 2008-04-10
    • Yoshihiro HaraShunsuke HiranoToru MatsuuraShigeru Morimoto
    • Yoshihiro HaraShunsuke HiranoToru MatsuuraShigeru Morimoto
    • H04B1/04
    • H04B1/0483
    • Provided is a transmission circuit capable of operating with high linearity and with low noise. An AM variable fc filter uses an AM cutoff frequency to remove a high frequency component from an amplitude signal. An amplifier supplies a power amplifier with a voltage which is a result of amplifying the amplitude signal outputted from the AM variable fc filter. A PM variable fc filter uses a PM cutoff frequency to remove a high frequency component from a phase signal. A phase modulator phase-modulates the phase signal outputted from the PM variable fc filter to output a high-frequency phase-modulated signal. The power amplifier amplifies the high-frequency phase-modulated signal by using the voltage supplied from the amplifier, and outputs a resultant signal as a transmission signal. The AM variable fc filter and the PM variable fc filter respectively control the AM cutoff frequency and the PM cutoff frequency such that the AM cutoff frequency and the PM cutoff frequency each have an opposite characteristic to that of an output power of the transmission signal.
    • 提供了能够以高线性度和低噪声运行的传输电路。 AM变量fc滤波器使用AM截止频率从幅度信号中去除高频分量。 放大器为功率放大器提供电压,该电压是从AM变量fc滤波器输出的幅度信号的放大结果。 PM变量fc滤波器使用PM截止频率从相位信号中去除高频分量。 相位调制器对从PM变量fc滤波器输出的相位信号进行相位调制,以输出高频相位调制信号。 功率放大器通过使用从放大器提供的电压放大高频相位调制信号,并输出合成信号作为发送信号。 AM变量fc滤波器和PM变量fc滤波器分别控制AM截止频率和PM截止频率,使得AM截止频率和PM截止频率各自具有与发送信号的输出功率相反的特性。
    • 6. 发明授权
    • Polar modulation apparatus and communication device
    • 极性调制装置和通信装置
    • US08466755B2
    • 2013-06-18
    • US13142489
    • 2009-11-20
    • Yoshihiro Hara
    • Yoshihiro Hara
    • H03C3/38
    • H03F1/0222H03F3/24
    • Provided is a Polar modulation apparatus which compensates for output characteristics of a power amplifier. A data generator generates an amplitude component signal and a phase component signal. A phase modulator generates a phase modulated signal obtained by phase modulating the phase component signal. An adder adds an amplitude offset voltage to the amplitude component signal. A power amplifier which includes a first hetero-junction bipolar transistor, amplifies the phase modulated signal by using the amplitude component signal. A monitor unit monitors the power amplifier and outputs a monitor voltage. The control unit calculates the amplitude offset voltage according to the monitor voltage and outputs the calculated amplitude offset voltage to the adder. The monitor unit includes a second hetero-junction bipolar transistor and outputs a collector emitter voltage of the second hetero-junction bipolar transistor as the monitor voltage.
    • 提供了一种用于补偿功率放大器的输出特性的极性调制装置。 数据发生器产生幅度分量信号和相位分量信号。 相位调制器产生通过相位调制相位分量信号获得的相位调制信号。 加法器将振幅偏移电压加到幅度分量信号上。 包括第一异质结双极晶体管的功率放大器通过使用振幅分量信号来放大相位调制信号。 监视器单元监视功率放大器并输出监视器电压。 控制单元根据监视电压来计算幅度偏移电压,并将计算的振幅偏移电压输出到加法器。 监视器单元包括第二异质结双极晶体管,并输出第二异质结双极晶体管的集电极发射极电压作为监视电压。
    • 7. 发明授权
    • Drive device
    • 驱动装置
    • US08351141B2
    • 2013-01-08
    • US12863928
    • 2009-01-22
    • Yasutaka TanimuraYasuhiro HondaNatsuko ShiotaYoshihiro Hara
    • Yasutaka TanimuraYasuhiro HondaNatsuko ShiotaYoshihiro Hara
    • G02B7/02G02B15/14
    • F03G7/065G02B7/028G02B7/08
    • A drive device includes a setting unit 12 for setting a control value using a control value-displacement characteristic at a predetermined reference temperature showing a relationship between a control value used to position a movable unit 5 and a displacement of the movable unit 5; a drive unit 20 for supplying drive power corresponding to the control value set by the setting unit 12 to a shape-memory alloy 1 and causing the shape-memory alloy 1 to expand or contract, thereby positioning the movable unit 5; and a correction unit 13 for correcting the control value so as to correct a position shift of the movable unit 5 from a target position resulting from a difference between a control value-displacement characteristic at an ambient temperature and a control value-displacement characteristic at the reference temperature based on the ambient temperature detected by a temperature detection unit 11.
    • 驱动装置包括设置单元12,用于使用表示用于定位可移动单元5的控制值与可移动单元5的位移之间的关系的预定参考温度下的控制值 - 位移特性来设定控制值; 驱动单元20,用于将对应于由设置单元12设置的控制值的驱动力提供给形状记忆合金1,并使形状记忆合金1膨胀或收缩,从而定位可移动单元5; 以及校正单元13,用于校正控制值,以便根据环境温度下的控制值 - 位移特性与控制值 - 位移特性之间的差异来校正可移动单元5从目标位置的位置偏移 基于由温度检测单元11检测到的环境温度的基准温度。