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    • 1. 发明申请
    • DISCRETE FILTER, SAMPLING MIXER, AND RADIO DEVICE
    • 离散滤波器,采样混频器和无线电设备
    • US20100248675A1
    • 2010-09-30
    • US12304011
    • 2007-06-19
    • Yoshifumi HosokawaNoriaki SaitoYoshito ShimizuKatsuaki Abe
    • Yoshifumi HosokawaNoriaki SaitoYoshito ShimizuKatsuaki Abe
    • H04B1/16H03H7/00
    • H03D7/00G11C27/024H03H15/00H03J2200/10
    • Provided is a discrete filter capable of increasing degree of freedom of design including a DC gain. A sampling mixer (100) includes: a control signal generation unit (104) which generates a control signal including an SO signal; a Ch (6) which successively integrates reception signals sampled by an LO signal frequency as discrete signals; a plurality of Cr (7, 8) which successively integrate discrete signals at a timing based on the control signal; Cb (15) which alternately integrates the discrete signals successively integrated by the respective Cr (7, 8); and a gain control capacitance unit (110) which has gain control capacitors (44, 45, 46) connected in parallel to the respective Cr (7, 8) and integrating the discrete signal and a reset switch (47) for resetting the discrete signal of the gain control capacitors (44, 45, 46) integrated in the past, upon connection between one end of Cr (7) and Cb (15).
    • 提供了能够增加包括DC增益的设计自由度的离散滤波器。 采样混频器(100)包括:产生包括SO信号的控制信号的控制信号产生单元(104) 将由LO信号频率采样的接收信号连续地合并为一个Ch(6)作为离散信号; 多个Cr(7,8),其基于控制信号在定时连续地整合离散信号; Cb(15),其交替地对由相应Cr(7,8)连续积分的离散信号进行积分; 以及增益控制电容单元(110),其具有并联连接到各个Cr(7,8)并且对离散信号进行积分并具有用于复位离散信号的复位开关(47)的增益控制电容器(44,45,46) (7)和Cb(15)的一端之间连接的过去集成的增益控制电容器(44,45,46)。
    • 2. 发明授权
    • Discrete filter, sampling mixer, and radio device
    • 离散滤波器,采样混频器和无线电设备
    • US08045938B2
    • 2011-10-25
    • US12304011
    • 2007-06-19
    • Yoshifumi HosokawaNoriaki SaitoYoshito ShimizuKatsuaki Abe
    • Yoshifumi HosokawaNoriaki SaitoYoshito ShimizuKatsuaki Abe
    • H01Q11/12H03B1/00
    • H03D7/00G11C27/024H03H15/00H03J2200/10
    • Provided is a discrete filter capable of increasing degree of freedom of design including a DC gain. A sampling mixer (100) includes: a control signal generation unit (104) which generates a control signal including an SO signal; a Ch (6) which successively integrates reception signals sampled by an LO signal frequency as discrete signals; a plurality of Cr (7, 8) which successively integrate discrete signals at a timing based on the control signal; Cb (15) which alternately integrates the discrete signals successively integrated by the respective Cr (7, 8); and a gain control capacitance unit (110) which has gain control capacitors (44, 45, 46) connected in parallel to the respective Cr (7, 8) and integrating the discrete signal and a reset switch (47) for resetting the discrete signal of the gain control capacitors (44, 45, 46) integrated in the past, upon connection between one end of Cr (7) and Cb (15).
    • 提供了能够增加包括DC增益的设计自由度的离散滤波器。 采样混频器(100)包括:产生包括SO信号的控制信号的控制信号产生单元(104) 将由LO信号频率采样的接收信号连续地合并为一个Ch(6)作为离散信号; 多个Cr(7,8),其基于控制信号在定时连续地整合离散信号; Cb(15),其交替地对由相应Cr(7,8)连续积分的离散信号进行积分; 以及增益控制电容单元(110),其具有与相应的Cr(7,8)并联连接并且对离散信号进行积分并具有用于复位离散信号的复位开关(47)的增益控制电容器(44,45,46) (7)和Cb(15)的一端之间连接的过去集成的增益控制电容器(44,45,46)。
    • 3. 发明授权
    • Radio communication system base station and mobile station
    • 无线电通信系统基站和移动台
    • US07715841B2
    • 2010-05-11
    • US10572978
    • 2004-10-01
    • Yoshifumi HosokawaNoriaki SaitoKatsuaki AbeMichiaki MatsuoYoshito ShimizuJunji Sato
    • Yoshifumi HosokawaNoriaki SaitoKatsuaki AbeMichiaki MatsuoYoshito ShimizuJunji Sato
    • H04Q7/20
    • H04W88/06H04W40/246H04W48/08H04W92/02H04W92/10
    • A radio communication system includes a base station of a radio communication system A, a base station of a radio communication system B operation in non-synchronized way with the base station, and a mobile station capable of communicating with both of the radio communication system A and the radio communication system B. The base station includes a radio unit for transmitting/receiving a radio wave to/from the mobile station and a system information estimation unit for estimating the system information on the radio communication system B and outputting the system estimation information. The radio unit of the base station reports the system estimation information on the base station to the mobile station. The mobile station receives the system estimation information on the base station in advance so as to perform effective switching without using a cabled connection from the radio communication system A to the radio communication system B via a relay device or the like.
    • 无线通信系统包括无线通信系统A的基站,无线通信系统B的与基站非同步的操作的基站,以及能够与无线通信系统A通信的移动台 和无线通信系统B.基站包括用于向移动台发送/接收无线电波的无线电单元和用于估计无线电通信系统B的系统信息的系统信息估计单元,并输出系统估计信息 。 基站的无线单元向移动台报告基站的系统估计信息。 移动站预先在基站上接收系统估计信息,以便不经由中继装置等从无线通信系统A向无线通信系统B的电缆连接进行有效的切换。
    • 6. 发明授权
    • Frequency dividing circuit and multimode radio device using the same
    • 分频电路和使用其的多模无线电设备
    • US07816953B2
    • 2010-10-19
    • US10596820
    • 2005-03-02
    • Yoshifumi HosokawaNoriaki SaitoMichiaki MatsuoYoshito Shimizu
    • Yoshifumi HosokawaNoriaki SaitoMichiaki MatsuoYoshito Shimizu
    • H03B19/00
    • H04B1/0082H03D7/166
    • A frequency dividing section is made up of a frequency divider for dividing output of a local oscillator, a frequency divider for dividing output of an in-phase local oscillation signal of the frequency divider, and a dummy circuit connected to the output terminal of a quadrature local oscillation signal of the frequency divider. At the first frequency band operation time, output of the frequency divider is used for modulation and demodulation and at the second frequency band operation time, output of the frequency divider is used for modulation and demodulation. Although the frequency divider is shared between the first and second frequency bands, the dummy circuit is made the same circuit as an input amplifier of the frequency divider at the first frequency band operation time, so that the phase difference between the in-phase local oscillation signal and the quadrature local oscillation signal output by the frequency divider can be kept. Accordingly, the frequency dividers are shared and combined for lessening the circuit scale.
    • 分频部由用于分频本地振荡器的分频器,用于分频分频器的同相本地振荡信号的输出的分频器和连接到正交的输出端子的虚拟电路组成 分频器的本地振荡信号。 在第一频带操作时间,分频器的输出用于调制和解调,并且在第二频带操作时间,分频器的输出用于调制和解调。 虽然在第一和第二频带之间共享分频器,但是在第一频带操作时间,虚设电路与分频器的输入放大器相同,使得同相局部振荡 可以保持由分频器输出的信号和正交本地振荡信号。 因此,分频器被共享并组合以减小电路规模。
    • 7. 发明申请
    • Frequency dividing circuit and multimode radio device using the same
    • 分频电路和使用其的多模无线电设备
    • US20070099580A1
    • 2007-05-03
    • US10596820
    • 2005-03-02
    • Yoshifumi HosokawaNoriaki SaitoMichiaki MatsuoYoshito Shimizu
    • Yoshifumi HosokawaNoriaki SaitoMichiaki MatsuoYoshito Shimizu
    • H04B1/40H04B7/00
    • H04B1/0082H03D7/166
    • In a multimode radio, as many frequency dividers as the number of radio systems become necessary and the circuit scale of a frequency dividing section becomes large. A frequency dividing section 22 is made up of a frequency divider 19 for dividing output of a local oscillator, a frequency divider 20 for dividing output of an in-phase local oscillation signal of the frequency divider 19, and a dummy circuit 21 connected to the output terminal of a quadrature local oscillation signal of the frequency divider 19. At the first frequency band operation time, output of the frequency divider 19 is used for modulation and demodulation and at the second frequency band operation time, output of the frequency divider 20 is used for modulation and demodulation. Although the frequency divider 19 is shared between the first and second frequency bands, the dummy circuit is made the same circuit as an input amplifier of the frequency divider 20 at the first frequency band operation time, so that the phase difference between the in-phase local oscillation signal and the quadrature local oscillation signal output by the frequency divider 19 can be kept. Accordingly, the frequency dividers are shared and combined for lessening the circuit scale.
    • 在多模无线电中,与无线电系统的数量一样多的分频器变得必要,并且分频部分的电路规模变大。 分频部分22由用于分频本地振荡器的输出的分频器19,用于分频分频器19的同相本地振荡信号的输出的分频器20和连接到分频器19的虚拟电路21组成。 分频器19的正交本地振荡信号的输出端子。 在第一频带操作时间,分频器19的输出用于调制和解调,并且在第二频带操作时间,分频器20的输出用于调制和解调。 虽然分频器19在第一和第二频带之间共享,但是在第一频带操作时间,使虚设电路与分频器20的输入放大器相同,使得同相 可以保持由分频器19输出的本地振荡信号和正交本地振荡信号。 因此,分频器被共享并组合以减小电路规模。
    • 8. 发明授权
    • Electronic circuit, frequency divider and radio set
    • 电子电路,分频器和无线电设备
    • US07969210B2
    • 2011-06-28
    • US12065674
    • 2006-09-01
    • Yoshifumi HosokawaNoriaki SaitoYoshito Shimizu
    • Yoshifumi HosokawaNoriaki SaitoYoshito Shimizu
    • H03B19/00
    • H03K3/289H03K23/44
    • A master stage 101 comprises a differential circuit composed of transistors 1 and 2, a differential circuit composed of transistors 3 and 4, a differential circuit composed of transistors 5 and 6, a load circuit 7 (a first load circuit), a load circuit 8 (a second load circuit), and a current source transistor 9. The load circuit 7 (the first load circuit) is composed of an inductor 7A (a first inductor), an inductor 7B (a fifth inductor), and a capacity 7C (a first capacity). The inductor 7B and capacity 7C cooperates together in forming a parallel resonance circuit (a first LC parallel resonance circuit), while the parallel resonance circuit is connected in series to the inductor 7A.
    • 主级101包括由晶体管1和2组成的差分电路,由晶体管3和4组成的差分电路,由晶体管5和6组成的差分电路,负载电路7(第一负载电路),负载电路8 (第二负载电路)和电流源晶体管9.负载电路7(第一负载电路)由电感器7A(第一电感器),电感器7B(第五电感器)和容量7C( 第一容量)。 电感器7B和电容7C在形成并联谐振电路(第一LC并联谐振电路)时协同工作,而并联谐振电路与电感器7A串联连接。
    • 9. 发明申请
    • NONLINEAR DISTORTION COMPENSATING RECEIVER AND NONLINEAR DISTORTION COMPENSATION METHOD
    • 非线性失真补偿接收器和非线性失真补偿方法
    • US20120086504A1
    • 2012-04-12
    • US13378477
    • 2010-07-05
    • Satoshi TsukamotoNoriaki SaitoYoshito ShimizuTadashi MoritaKatsuaki Abe
    • Satoshi TsukamotoNoriaki SaitoYoshito ShimizuTadashi MoritaKatsuaki Abe
    • H04B1/10
    • H04B1/109H04B1/0028H04B1/123H04L27/3863
    • Disclosed are a nonlinear distortion compensating receiver and nonlinear distortion compensation method, wherein nonlinear distortion is reduced with a simple circuit configuration. A correction (opposite characteristics) filter (104) has characteristics opposite that of the frequency characteristics of a direct sampling mixer (102) and corrects signals sampled by the direct sampling mixer (102). In the main path, a LPF (106) extracts a frequency band component of a desired signal from the corrected signal. In the replica path, a BPF (107) extracts the frequency band component of a blocker signal from the corrected signal. A cubing circuit (108) uses the frequency band component of the blocker signal to generate a replica signal for the nonlinear distortion. An adaptive filter (110) performs filter processing on the replica signal while updating the filter coefficients. A subtractor (111) subtracts the output signal of the adaptive filter (110) from the frequency band component of the extracted desired signal and outputs the subtraction result as the desired signal.
    • 公开了一种非线性失真补偿接收机和非线性失真补偿方法,其中通过简单的电路配置来减少非线性失真。 校正(相反特性)滤波器(104)具有与直接采样混频器(102)的频率特性相反的特性,并且校正由直接采样混频器(102)采样的信号。 在主路径中,LPF(106)从校正信号中提取期望信号的频带分量。 在副本路径中,BPF(107)从修正信号中提取阻塞信号的频带分量。 立方体电路(108)使用阻塞信号的频带分量来产生用于非线性失真的复制信号。 自适应滤波器(110)在更新滤波器系数的同时对复制信号执行滤波处理。 减法器(111)从所提取的期望信号的频带分量中减去自适应滤波器(110)的输出信号,并输出相减结果作为期望信号。
    • 10. 发明授权
    • Nonlinear distortion compensating receiver and nonlinear distortion compensation method
    • 非线性失真补偿接收机和非线性失真补偿方法
    • US08655297B2
    • 2014-02-18
    • US13378477
    • 2010-07-05
    • Satoshi TsukamotoNoriaki SaitoYoshito ShimizuTadashi MoritaKatsuaki Abe
    • Satoshi TsukamotoNoriaki SaitoYoshito ShimizuTadashi MoritaKatsuaki Abe
    • H04B1/10
    • H04B1/109H04B1/0028H04B1/123H04L27/3863
    • Disclosed are a nonlinear distortion compensating receiver and nonlinear distortion compensation method, wherein nonlinear distortion is reduced with a simple circuit configuration. A correction (opposite characteristics) filter (104) has characteristics opposite that of the frequency characteristics of a direct sampling mixer (102) and corrects signals sampled by the direct sampling mixer (102). In the main path, a LPF (106) extracts a frequency band component of a desired signal from the corrected signal. In the replica path, a BPF (107) extracts the frequency band component of a blocker signal from the corrected signal. A cubing circuit (108) uses the frequency band component of the blocker signal to generate a replica signal for the nonlinear distortion. An adaptive filter (110) performs filter processing on the replica signal while updating the filter coefficients. A subtractor (111) subtracts the output signal of the adaptive filter (110) from the frequency band component of the extracted desired signal and outputs the subtraction result as the desired signal.
    • 公开了一种非线性失真补偿接收机和非线性失真补偿方法,其中通过简单的电路配置来减少非线性失真。 校正(相反特性)滤波器(104)具有与直接采样混频器(102)的频率特性相反的特性,并且校正由直接采样混频器(102)采样的信号。 在主路径中,LPF(106)从校正信号中提取期望信号的频带分量。 在副本路径中,BPF(107)从修正信号中提取阻塞信号的频带分量。 立方体电路(108)使用阻塞信号的频带分量来产生用于非线性失真的复制信号。 自适应滤波器(110)在更新滤波器系数的同时对复制信号执行滤波处理。 减法器(111)从所提取的期望信号的频带分量中减去自适应滤波器(110)的输出信号,并输出相减结果作为期望信号。