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1. 发明申请

US20140029707A1 RECEIVER CIRCUIT AND FILTERING METHOD USED THEREIN 有权
标题翻译：接收电路及其使用的滤波方法
公开(公告)号：US20140029707A1
公开(公告)日：2014-01-30
申请号：US14008614
申请日：2012-03-28
申请人： Masaki Kitsunezuka
发明人： Masaki Kitsunezuka
IPC分类号： H04L27/148
CPC分类号： H04L27/148 , H04B1/28
摘要： A receiver circuit includes a first mixer that performs frequency conversion on a first signal of containing a first frequency entered from outside to output the resulting frequency-converted first signal, and a first selector that selects one out of an output signal of the first mixer and a second signal containing a second frequency entered from outside. A filter removes a pre-set frequency band of the signal selected by the first selector, and a second selector that selects between outputting the signal removed of the frequency band to outside and outputting the signal to a subsequent side circuit. A second mixer performs frequency conversion of the signal output from the second selector to output the resulting frequency-converted signal. The second mixer is the subsequent side circuit. The second frequency has a carrier frequency of a radio signal.
摘要翻译：一种接收机电路包括：第一混频器，对包含从外部输入的第一频率的第一信号执行频率转换，以输出所得到的经频率转换的第一信号;以及第一选择器，从第一混频器的输出信号中选择一个，包含从外部输入的第二频率的第二信号。滤波器去除由第一选择器选择的信号的预置频带，以及第二选择器，其在将去除频带的信号输出到外部之间进行选择，并将信号输出到后续侧电路。第二混频器对从第二选择器输出的信号进行频率转换，以输出所得到的频率转换信号。第二混频器是随后的侧电路。第二频率具有无线电信号的载波频率。

2. 发明授权

US08818317B2 Frequency converter and receiver that uses the frequency converter 有权
标题翻译：使用变频器的变频器和接收器
公开(公告)号：US08818317B2
公开(公告)日：2014-08-26
申请号：US13805593
申请日：2011-04-18
申请人： Masaki Kitsunezuka
发明人： Masaki Kitsunezuka
IPC分类号： H03B1/04 , H04B1/10
CPC分类号： H04B1/10 , H03B1/04 , H03D7/1441 , H03D7/1458 , H03D7/165 , H03D2200/0025 , H03D2200/0084
摘要： The present invention is applied to a frequency converter used for a receiver. The frequency converter according to the present invention includes an LO signal generator (11) that generates an LO signal and outputs the LO signal; and a mixer (10) that multiplies a received signal that has been band-limited in a usable bandwidth of said receiver by the LO signal so as to convert the frequency of the received signal and outputs the resultant signal, wherein said LO signal generator is capable of varying a phase resolution, and said frequency converter is capable of varying a signal gain for each phase value of the LO signal.
摘要翻译：本发明应用于用于接收机的变频器。根据本发明的变频器包括产生LO信号并输出LO信号的LO信号发生器（11）; 以及混合器（10），其将在所述接收机的可用带宽中已经被频带限制的接收信号乘以LO信号，以便转换接收信号的频率并输出所得到的信号，其中所述LO信号发生器是能够改变相位分辨率，并且所述频率转换器能够改变LO信号的每个相位值的信号增益。

3. 发明申请

US20130094270A1 Frequency converter and receiver that uses the frequency converter 有权
标题翻译：使用变频器的变频器和接收器
公开(公告)号：US20130094270A1
公开(公告)日：2013-04-18
申请号：US13806570
申请日：2011-04-14
申请人： Masaki Kitsunezuka
发明人： Masaki Kitsunezuka
IPC分类号： H02M5/02
CPC分类号： H02M5/02 , H03D7/163 , H03D2200/0084
摘要： The present invention is applied to a frequency converter used for a receiver. The frequency converter according to the present invention includes an LO signal generator (11) that generates an LO signal and outputs the LO signal; and a mixer (10) that multiplies a received signal that has been band-limited to a usable bandwidth of said receiver by the LO signal so as to convert the frequency of the received signal and outputs the resultant signal. Said LO signal generator is capable of varying a phase resolution.
摘要翻译：本发明应用于用于接收机的变频器。根据本发明的变频器包括产生LO信号并输出LO信号的LO信号发生器（11）; 以及混频器（10），其将已经被限制的接收信号与所述接收机的可用带宽乘以LO信号，以便转换接收信号的频率并输出所得到的信号。所述LO信号发生器能够改变相位分辨率。

4. 发明申请

US20130015901A1 MIXER CIRCUIT AND VARIATION SUPPRESSING METHOD 有权
标题翻译：混合电路和变量抑制方法
公开(公告)号：US20130015901A1
公开(公告)日：2013-01-17
申请号：US13508513
申请日：2010-10-22
申请人： Masaki Kitsunezuka
发明人： Masaki Kitsunezuka
IPC分类号： G06G7/16 , H03K5/00
CPC分类号： H03D7/165 , H03D7/1441 , H03D7/1458 , H03D7/1483
摘要： In a mixer circuit that solves the problem of the extreme increase in circuit complexity that accompanies compensating for amplitude errors and phase errors, a voltage current conversion unit (11) converts an RF signal, which is a voltage signal, to a current signal and supplies the current signal. An RF path selection unit (12) connects its input terminal to any of its output terminals in accordance with the state of a four-phase clock signal and separately supplies, from its output terminals, a plurality of IF signals obtained by multiplying the RF signal by clock signals in the four-phase clock signal. An IF path selection unit (13) switches the connection relationship between its input terminals and its output terminals in accordance with a selection signal (S) and supplies the IF signal input to each of its input terminals from its output terminals that are connected to the input terminals.
摘要翻译：在解决伴随补偿振幅误差和相位误差的电路复杂度极度增加的问题的混频器电路中，电压电流转换单元（11）将作为电压信号的RF信号转换为电流信号并提供当前信号。 RF路径选择单元（12）根据四相时钟信号的状态将其输入端子连接到其输出端子，并从其输出端分别提供通过将RF信号通过四相时钟信号中的时钟信号。 IF路径选择单元（13）根据选择信号（S）切换其输入端子与其输出端子之间的连接关系，并将其输入的每个输入端子的IF信号从连接到其的输出端子输入端子。

5. 发明申请

US20100289533A1 VOLTAGE CURRENT CONVERTER, DIFFERENTIATION CIRCUIT, INTEGRATION CIRCUIT, AND FILTER CIRCUIT USING THE CONVERTER, AND VOLTAGE CURRENT CONVERSION METHOD 有权
标题翻译：使用转换器的电压电流转换器，差分电路，整合电路和滤波电路以及电压转换方法
公开(公告)号：US20100289533A1
公开(公告)日：2010-11-18
申请号：US12863741
申请日：2009-01-27
申请人： Masaki Kitsunezuka
发明人： Masaki Kitsunezuka
IPC分类号： H02M11/00 , G06G7/18 , H04B1/00
CPC分类号： G11C27/024 , G11C27/02 , H03H15/023
摘要： It is possible to provide a voltage-current converter which can realize a variable filter having a steep cut-off characteristic with a small area. The voltage-current converter includes: one or more sampling/holding units for sampling an inputted voltage and holding the sampled voltage; one or more separate voltage-current conversion units for outputting a current corresponding to the voltage held by the sampling/holding units; and a control unit for controlling the timing of the sampling and holding of the inputted voltage by the sampling/holding units.
摘要翻译：可以提供能够实现具有小面积的陡峭截止特性的可变滤波器的电压电流转换器。电压电流转换器包括：一个或多个采样/保持单元，用于对输入的电压进行采样并保持采样的电压; 一个或多个单独的电压电流转换单元，用于输出与采样/保持单元保持的电压相对应的电流; 以及控制单元，用于控制采样/保持单元对输入电压的采样和保持的定时。

6. 发明授权

US09036390B2 Frequency converter that suppresses crosstalk that occurs between a local oscillation signal and a received signal, and receiver that uses the frequency converter 有权
标题翻译：用于抑制本地振荡信号与接收信号之间发生串扰的变频器，以及使用变频器的接收机
公开(公告)号：US09036390B2
公开(公告)日：2015-05-19
申请号：US13806570
申请日：2011-04-14
申请人： Masaki Kitsunezuka
发明人： Masaki Kitsunezuka
IPC分类号： H02M5/45 , H02M5/02 , H03D7/16
CPC分类号： H02M5/02 , H03D7/163 , H03D2200/0084
摘要： The present invention is applied to a frequency converter used for a receiver. The frequency converter according to the present invention includes an LO signal generator (11) that generates an LO signal and outputs the LO signal; and a mixer (10) that multiplies a received signal that has been band-limited to a usable bandwidth of said receiver by the LO signal so as to convert the frequency of the received signal and outputs the resultant signal. Said LO signal generator is capable of varying a phase resolution.
摘要翻译：本发明应用于用于接收机的变频器。根据本发明的变频器包括产生LO信号并输出LO信号的LO信号发生器（11）; 以及混频器（10），其将已经被限制的接收信号与所述接收机的可用带宽乘以LO信号，以便转换接收信号的频率并输出所得到的信号。所述LO信号发生器能够改变相位分辨率。

7. 发明授权

US08521112B2 Quadrature mixer 有权
标题翻译：正交搅拌机
公开(公告)号：US08521112B2
公开(公告)日：2013-08-27
申请号：US13382143
申请日：2010-06-23
申请人： Masaki Kitsunezuka , Takashi Tokairin
发明人： Masaki Kitsunezuka , Takashi Tokairin
IPC分类号： H04B1/16
CPC分类号： H03D7/1441 , H03D7/1458 , H03D7/165
摘要： This invention provides an quadrature mixer which does not require a long time to adjust the amplitude value at the time of demodulation of the IQ signal. The quadrature mixer, comprising a first frequency-conversion unit that outputs a sixth signal derived by multiplying a first signal by a second and a fourth signals, a second frequency-conversion unit that outputs a seventh signal derived by multiplying the first signal by a third and a fifth signals, a first amplitude adjustment unit that outputs a eighth signal derived by multiplying the sixth signal by the third and fifth signals and a second amplitude adjustment unit that outputs a ninth signal derived by multiplying the seventh signal by the second and fifth signals.
摘要翻译：本发明提供一种正交混频器，其不需要很长时间来调整IQ信号解调时的振幅值。正交混频器，包括：第一频率转换单元，输出通过将第一信号乘以第二和第四信号而导出的第六信号;第二频率转换单元，输出通过将第一信号乘以第三信号而导出的第七信号和第五信号，第一幅度调整单元，输出通过将第六信号乘以第三和第五信号而导出的第八信号;以及第二幅度调整单元，其输出通过将第七信号乘以第二和第五信号而导出的第九信号。

8. 发明申请

US20130165063A1 SIGNAL PROCESSING CIRCUIT, SIGNAL PROCESSING METHOD AND CONTROL PROGRAM RECORDING MEDIUM 有权
标题翻译：信号处理电路，信号处理方法和控制程序记录介质
公开(公告)号：US20130165063A1
公开(公告)日：2013-06-27
申请号：US13822044
申请日：2011-08-18
申请人： Masaki Kitsunezuka
发明人： Masaki Kitsunezuka
IPC分类号： G06F7/523
CPC分类号： H03D7/1441 , H03D7/1458 , H03D7/163
摘要： In order to provide a means for solving a problem that it provides a signal processing circuit with small circuit area and low power consumption, a signal processing circuit includes the first multiplying means which multiplies the first signal including the first frequency component by the second signal including the second frequency component and thereby outputs the third signal, the second multiplying means which multiplies the first signal by the fourth signal of the second frequency whose phase is lagging equals to the first phase difference relative to the second signal and thereby outputs the fifth signal, the third multiplying means which multiplies the first signal by the sixth signal of the second frequency whose phase is lagging equals to the second phase difference relative to the second signal and thereby outputs the seventh signal, the first adding means which adds the third signal with the first weight, the fifth signal with the second weight and the seventh signal with the third weight respectively and a signal generating means which controls the first phase difference and the second phase difference based on a control signal and thereby outputs the second signal, the fourth signal and the sixth signal.
摘要翻译：为了提供一种解决提供具有小电路面积和低功耗的信号处理电路的问题的手段，信号处理电路包括第一乘法装置，其将包括第一频率分量的第一信号乘以第二信号，包括第二频率分量，从而输出第三信号，第二乘法装置将相位滞后的第二频率的第四信号乘以相对于第二信号的第一相位差，从而输出第五信号，所述第三乘法装置将所述第一信号乘以相位滞后的第二频率的第六信号相对于所述第二信号等于所述第二相位差，从而输出所述第七信号，所述第一加法装置将所述第三信号与第一个权重，第五个信号与第二个权重和第七个信号第三权重和信号发生装置，其基于控制信号控制第一相位差和第二相位差，从而输出第二信号，第四信号和第六信号。

9. 发明授权

US08248111B2 Voltage current converter, differentiation circuit, integration circuit, and filter circuit using the converter, and voltage current conversion method 有权
标题翻译：电压电流转换器，微分电路，积分电路和使用转换器的滤波电路，以及电压电流转换方法
公开(公告)号：US08248111B2
公开(公告)日：2012-08-21
申请号：US12863741
申请日：2009-01-27
申请人： Masaki Kitsunezuka
发明人： Masaki Kitsunezuka
IPC分类号： H02M11/00 , H03F3/45
CPC分类号： G11C27/024 , G11C27/02 , H03H15/023
摘要： It is possible to provide a voltage-current converter which can realize a variable filter having a steep cut-off characteristic with a small area. The voltage-current converter includes: one or more sampling/holding units for sampling an inputted voltage and holding the sampled voltage; one or more separate voltage-current conversion units for outputting a current corresponding to the voltage held by the sampling/holding units; and a control unit for controlling the timing of the sampling and holding of the inputted voltage by the sampling/holding units.
摘要翻译：可以提供能够实现具有小面积的陡峭截止特性的可变滤波器的电压电流转换器。电压电流转换器包括：一个或多个采样/保持单元，用于对输入的电压进行采样并保持采样的电压; 一个或多个单独的电压电流转换单元，用于输出与采样/保持单元保持的电压相对应的电流; 以及控制单元，用于控制采样/保持单元对输入电压的采样和保持的定时。

10. 发明授权

US07982506B2 Voltage-current converter and filter circuit using same 有权
标题翻译：电压电流转换器和滤波电路使用相同
公开(公告)号：US07982506B2
公开(公告)日：2011-07-19
申请号：US12602548
申请日：2008-06-04
申请人： Masaki Kitsunezuka , Shinichi Hori
发明人： Masaki Kitsunezuka , Shinichi Hori
IPC分类号： H02M11/00
CPC分类号： H03G1/0088 , H03H11/0427 , H03H11/0433 , H03H11/0472
摘要： The voltage-current converter of the present invention includes a converter input terminal, a converter output terminal, a voltage-current conversion unit for converting voltage that is applied as input to the converter input terminal to current, and a current extraction unit for intermittently extracting current from the output terminal of the voltage-current conversion unit and supplying this current as output from the converter output terminal.
摘要翻译：本发明的电压 - 电流转换器包括转换器输入端子，转换器输出端子，用于将作为输入端施加到转换器输入端子的电压转换为电流的电压 - 电流转换单元，以及用于间歇地提取的电流提取单元从电压 - 电流转换单元的输出端子提供电流，并将该电流作为转换器输出端子的输出。

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