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公开(公告)号：US08624654B2
公开(公告)日：2014-01-07
申请号：US13552326
申请日：2012-07-18
申请人： Noboru Sasho , Naoto Yoshikawa
发明人： Noboru Sasho , Naoto Yoshikawa
IPC分类号： H03L5/00
CPC分类号： H03G1/0088 , H03G3/3036 , H03H11/245
摘要： An automatic step variable attenuator includes: a step variable attenuator attenuating a received signal of an electric wave signal in an attenuation amount corresponding to a control signal in a step-like style; a detector disposed in parallel with the step variable attenuator for input of the received signal of the electric wave signal, and converting an electric power of the received signal thus inputted into an intensity signal representing an intensity of the received signal; and a comparator portion generating the control signal corresponding to a result of comparison for differences between the intensity signal obtained from the detector and plural threshold values, and outputting the control signal thus generated to the step variable attenuator.
摘要翻译： 一种自动步进可变衰减器包括：步进可变衰减器，以阶梯状的方式衰减对应于控制信号的衰减量的电波信号的接收信号; 检测器，与所述阶跃式可变衰减器并联设置，用于输入所述电波信号的接收信号;以及将所输入的接收信号的电功率转换成表示所述接收信号强度的强度信号; 以及比较器部分，生成对应于从检测器获得的强度信号与多个阈值之间的差异的比较结果的控制信号，并将由此产生的控制信号输出到阶跃可变衰减器。
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公开(公告)号：US20110098013A1
公开(公告)日：2011-04-28
申请号：US12923763
申请日：2010-10-07
CPC分类号： H03F3/189 , H03F2200/378 , H03F2200/391
摘要： A high-frequency amplifier includes: an amplification section having a function to convert an input signal from a voltage signal into a current signal and output the current signal; output terminals; and a load circuit which is connected to the output node of the amplification section and outputs the current signal output by the amplification section to the output terminals as a voltage signal.
摘要翻译： 高频放大器包括：具有将来自电压信号的输入信号转换为电流信号并输出电流信号的功能的放大部分; 输出端子; 以及负载电路，连接到放大部分的输出节点，并将由放大部分输出的电流信号输出到输出端作为电压信号。
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公开(公告)号：US20130033316A1
公开(公告)日：2013-02-07
申请号：US13552326
申请日：2012-07-18
申请人： Noboru Sasho , Naoto Yoshikawa
发明人： Noboru Sasho , Naoto Yoshikawa
CPC分类号： H03G1/0088 , H03G3/3036 , H03H11/245
摘要： An automatic step variable attenuator includes: a step variable attenuator attenuating a received signal of an electric wave signal in an attenuation amount corresponding to a control signal in a step-like style; a detector disposed in parallel with the step variable attenuator for input of the received signal of the electric wave signal, and converting an electric power of the received signal thus inputted into an intensity signal representing an intensity of the received signal; and a comparator portion generating the control signal corresponding to a result of comparison for differences between the intensity signal obtained from the detector and plural threshold values, and outputting the control signal thus generated to the step variable attenuator.
摘要翻译： 一种自动步进可变衰减器包括：步进可变衰减器，以阶梯状的方式衰减对应于控制信号的衰减量的电波信号的接收信号; 检测器，与所述阶跃式可变衰减器并联设置，用于输入所述电波信号的接收信号;以及将所输入的接收信号的电功率转换成表示所述接收信号强度的强度信号; 以及比较器部分，生成对应于从检测器获得的强度信号与多个阈值之间的差异的比较结果的控制信号，并将由此产生的控制信号输出到阶跃可变衰减器。
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公开(公告)号：US08649738B2
公开(公告)日：2014-02-11
申请号：US12923763
申请日：2010-10-07
IPC分类号： H04B1/38
CPC分类号： H03F3/189 , H03F2200/378 , H03F2200/391
摘要： A high-frequency amplifier includes: an amplification section having a function to convert an input signal from a voltage signal into a current signal and output the current signal; output terminals; and a load circuit which is connected to the output node of the amplification section and outputs the current signal output by the amplification section to the output terminals as a voltage signal.
摘要翻译： 高频放大器包括：具有将来自电压信号的输入信号转换为电流信号并输出电流信号的功能的放大部分; 输出端子; 以及负载电路，连接到放大部分的输出节点，并将由放大部分输出的电流信号输出到输出端作为电压信号。
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公开(公告)号：US08896760B2
公开(公告)日：2014-11-25
申请号：US12662638
申请日：2010-04-27
申请人： Noboru Sasho
发明人： Noboru Sasho
IPC分类号： H04N5/44 , H03J5/24 , H04N5/50 , H04N21/426 , H03J1/00
CPC分类号： H04N5/50 , H03J1/0008 , H03J5/244 , H04N5/455 , H04N21/4263
摘要： A signal processing device and signal processing method. A plurality of tuner circuits includes at least one that selectively provides a signal from among a plurality of signal bands potentially in an input signal in response to a control signal having a transition between a first state and a second state. A correction circuit corresponds to at least one of the plurality of tuner circuits, and is configured to receive the control signal and provide a corrected control signal for the tuner circuit. The corrected control signal has a gradual transition between the first state and the second state as compared to the transition between the first state and the second state in the control signal.
摘要翻译： 信号处理装置及信号处理方法。 多个调谐器电路包括响应于具有在第一状态和第二状态之间的转变的控制信号而选择性地提供来自输入信号中的多个信号带中的信号的至少一个。 校正电路对应于多个调谐器电路中的至少一个，并且被配置为接收控制信号并为调谐器电路提供校正的控制信号。 与控制信号中的第一状态和第二状态之间的转变相比，校正的控制信号在第一状态和第二状态之间具有逐渐的转变。
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6.发明授权I/Q demodulator device with three power detectors and two A/D converters 失效I / Q解调器具有三个功率检测器和两个A / D转换器公开(公告)号：US06999528B2
公开(公告)日：2006-02-14
申请号：US09947145
申请日：2001-09-05
CPC分类号： H03D1/2245 , H03D3/007 , H03D9/04 , H04B1/30
摘要： The present invention relates to a method and a device for the I/Q demodulation of modulated RF signals. The I/Q demodulator (60) has a first input for the RF signal (61) to be demodulated and a second input for a RF signal (62) originating from a local oscillator (20). The demodulator (60) combines the two RF signals (61,62) to generate three output signals supplied to three power detectors. In a combination unit (70) the three power signals of the power detectors are merged in two signal branches wherein after passing an A/D converting (72) and digital processing unit (73) one signal is the I component and the other one is the Q component of the received modulated RF signal (61).
摘要翻译： 本发明涉及用于调制RF信号的I / Q解调的方法和装置。 I / Q解调器（60）具有要被解调的RF信号（61）的第一输入和源自本地振荡器（20）的RF信号（62）的第二输入。 解调器（60）组合两个RF信号（61,62）以产生提供给三个功率检测器的三个输出信号。 在组合单元（70）中，功率检测器的三个功率信号被合并在两个信号分支中，其中在通过A / D转换（72）和数字处理单元（73）之后，一个信号是I分量，另一个是 所接收的调制RF信号（61）的Q分量。
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公开(公告)号：US07039129B2
公开(公告)日：2006-05-02
申请号：US09901273
申请日：2001-07-09
IPC分类号： H44L27/16
摘要： The present invention relates to an I/Q demodulator (21) comprising a n-port structure (1,16) is provided, wherein n is an integer value of 4,5 or 6. The demodulator (21) is supplied at a first input (3) with a RF signal (2) which has to be demodulated. At a second input (5) it is supplied with a second RF signal (4). The n−2 output signals (6) are detected by power sensors (7). After low pass filtering (14) the output signals of the power sensors (7) are multiplexed by a multiplexing means (8).
摘要翻译： 本发明涉及一种包括n端口结构（I16）的I / Q解调器（21），其中n是4,5或6的整数值。解调器（21）以第一 输入（3）与必须被解调的RF信号（2）。 在第二输入（5）处，它被提供有第二RF信号（4）。 n-2个输出信号（6）由功率传感器（7）检测。 在低通滤波（14）之后，功率传感器（7）的输出信号由复用装置（8）复用。
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公开(公告)号：US20050179484A1
公开(公告)日：2005-08-18
申请号：US11047564
申请日：2005-02-02
申请人： Noboru Sasho , Norio Shoji
发明人： Noboru Sasho , Norio Shoji
CPC分类号： G05F3/205
摘要： A bias voltage supply circuit of a radio-frequency amplification circuit has a constant-voltage power supply generating a constant voltage higher than the bias voltage, a rectifier transistor and a constant-current power supply supplying a constant current to the rectifier transistor. The rectifier transistor is connected between a supply point of a bias voltage connected to an input terminal of the radio-frequency amplification transistor via an element for bias supply and a power supply voltage supply line, wherein a control terminal is kept by a constant voltage that the constant-voltage power supply generates. Since descent of electric potential of the input terminal of a radio-frequency signal does not arise because of circuit composition, the radio-frequency amplification circuit has a saturation characteristic superior than a prior art.
摘要翻译： 射频放大电路的偏置电压电路具有产生高于偏置电压的恒定电压的恒压电源，整流晶体管和向整流晶体管供给恒定电流的恒流电源。 整流晶体管经由用于偏置电源的元件和电源电压供给线连接在与射频放大晶体管的输入端子连接的偏置电压的供电点之间，其中控制端子由恒定电压保持， 产生恒压电源。 由于电路组成，不产生射频信号的输入端的电位下降，所以射频放大电路的饱和特性优于现有技术。
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公开(公告)号：US06823181B1
公开(公告)日：2004-11-23
申请号：US10070283
申请日：2002-07-23
申请人： Ryuji Kohno , Masayoshi Abe , Noboru Sasho , Shinichiro Haruyama , Robert Henry Morelos-Zaragoza , Francis Swarts , Pieter Van Rooyen , Yukitoshi Sanada , Lachlan Bruce Michael , Hamid Amir-Alikhani , Veselin Brankovic
发明人： Ryuji Kohno , Masayoshi Abe , Noboru Sasho , Shinichiro Haruyama , Robert Henry Morelos-Zaragoza , Francis Swarts , Pieter Van Rooyen , Yukitoshi Sanada , Lachlan Bruce Michael , Hamid Amir-Alikhani , Veselin Brankovic
IPC分类号： H04B126
CPC分类号： H04B1/30 , H03D1/2245 , H04L27/2273 , H04L27/2332
摘要： The universal platform for the SDR of the present invention employs the direct conversion approach with the n-port MMIC followed by reconfigurable reprogrammable devices such as DSP's or FPGA's. The universal platform is based on the linear operation of the devices. Thus, the DC offset problem may be solved. It is also possible to support very wide bandwidths compared with conventional I/Q receivers. Therefore, the present universal platform is suitable for multimode and multiband communications.
摘要翻译： 本发明的SDR的通用平台采用n端口MMIC的直接转换方法，其次是可重新配置的可编程器件，如DSP或FPGA。 通用平台基于设备的线性操作。 因此，可以解决DC偏移问题。 与传统I / Q接收机相比，也可以支持非常宽的带宽。 因此，目前的通用平台适用于多模和多频通信。
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公开(公告)号：US06259997B1
公开(公告)日：2001-07-10
申请号：US09120318
申请日：1998-07-22
申请人： Noboru Sasho , Jun Iwasaki , Satoshi Konya , Tomoya Yamaura
发明人： Noboru Sasho , Jun Iwasaki , Satoshi Konya , Tomoya Yamaura
IPC分类号： G01R2100
CPC分类号： H04B17/327
摘要： A signal power detection apparatus in which a power value can be detected at a high accuracy with a low power consumption includes a pulse generator for generating a timing pulse whose phase is sequentially shifted corresponding to an inputted data signal, a power computing circuit for obtaining the inputted data signal based on a timing pulse and computing a power value of the inputted data signal by squaring a voltage value of the inputted data, and an averaging circuit for averaging the power value of the computed inputted data. A power can be accurately detected without using a high-speed timing clock, and a power value can be detected at a high accuracy with a low power consumption.
摘要翻译： 可以以低功耗高精度地检测功率值的信号功率检测装置包括：脉冲发生器，用于产生对应于输入的数据信号相位相移的定时脉冲;功率计算电路，用于获得 基于定时脉冲输入数据信号，并且通过对所输入的数据的电压值进行平方来计算输入的数据信号的功率值，以及用于对所计算的输入数据的功率值进行平均的平均电路。 可以在不使用高速定时时钟的情况下精确地检测功率，并且可以以低功耗以高精度检测功率值。
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