-
公开(公告)号：US07911281B2
公开(公告)日：2011-03-22
申请号：US12558771
申请日：2009-09-14
申请人： Hiroaki Hoshino , Osamu Watanabe , Shoji Otaka , Tetsuro Itakura
发明人： Hiroaki Hoshino , Osamu Watanabe , Shoji Otaka , Tetsuro Itakura
CPC分类号： H03L7/099 , H03L7/0891 , H03L7/18
摘要： A PLL circuit includes: a voltage-controlled oscillator including: a first oscillating portion configured to generate first differential signals; and a second oscillating portion configured to generate second differential signals with a phase difference of 90 degrees from the first differential signals; a phase detector configured to compare phases of third differential signals based on the first and second differential signals with a phase of a reference signal; and a loop filter configured to generate a control voltage for controlling the voltage-controlled oscillator based on a result of the comparison in the phase detector.
摘要翻译： PLL电路包括：压控振荡器，包括：第一振荡部分，被配置为产生第一差分信号; 以及第二振荡部分，被配置为产生与所述第一差分信号相差90度的第二差分信号; 相位检测器，被配置为将基于第一和第二差分信号的第三差分信号的相位与参考信号的相位进行比较; 以及环路滤波器，其被配置为基于相位检测器中的比较结果产生用于控制压控振荡器的控制电压。
-
公开(公告)号：US20100164633A1
公开(公告)日：2010-07-01
申请号：US12558771
申请日：2009-09-14
申请人： Hiroaki Hoshino , Osamu Watanabe , Shoji Otaka , Tetsuro Itakura
发明人： Hiroaki Hoshino , Osamu Watanabe , Shoji Otaka , Tetsuro Itakura
IPC分类号： H03L7/097
CPC分类号： H03L7/099 , H03L7/0891 , H03L7/18
摘要： A PLL circuit includes: a voltage-controlled oscillator including: a first oscillating portion configured to generate first differential signals; and a second oscillating portion configured to generate second differential signals with a phase difference of 90 degrees from the first differential signals; a phase detector configured to compare phases of third differential signals based on the first and second differential signals with a phase of a reference signal; and a loop filter configured to generate a control voltage for controlling the voltage-controlled oscillator based on a result of the comparison in the phase detector.
摘要翻译： PLL电路包括：压控振荡器，包括：第一振荡部分，被配置为产生第一差分信号; 以及第二振荡部分，被配置为产生与所述第一差分信号相差90度的第二差分信号; 相位检测器，被配置为将基于第一和第二差分信号的第三差分信号的相位与参考信号的相位进行比较; 以及环路滤波器，其被配置为基于相位检测器中的比较结果产生用于控制压控振荡器的控制电压。
-
公开(公告)号：US5995819A
公开(公告)日：1999-11-30
申请号：US755468
申请日：1996-11-22
申请人： Takafumi Yamaji , Osamu Watanabe , Hiroshi Tanimoto , Tetsuro Itakura , Shoji Otaka , Ryuichi Fujimoto
发明人： Takafumi Yamaji , Osamu Watanabe , Hiroshi Tanimoto , Tetsuro Itakura , Shoji Otaka , Ryuichi Fujimoto
CPC分类号： H03F3/45085 , H03D7/00 , H03D7/1408 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D7/1475 , H03D2200/0007 , H03D2200/0025 , H03D2200/0047 , H03D2200/009
摘要： A frequency converter includes: a signal synthesizer element for inputting first and second input signals to synthesize these signals and for outputting a synthesized signal, from which noises even times as large as the frequency of the second input signal are removed; an amplitude limitation amplifier element, composed of a differential amplifier circuit, for amplifying the synthesized signal outputted from the signal synthesizer element to output an amplified signal having a constant amplitude; and a filter for inputting the amplified signal outputted from the amplitude limitation amplifier element, to remove an unnecessary signal component to produce an output a baseband signal including only a desired signal component. In addition, a radio receiver using the frequency converter of such a construction is designed to input the output of a local oscillator to a variable attenuator or a variable gain amplifier, to input the output of the variable attenuator or the variable gain amplifier as the first input signal to the frequency converter so as to perform the gain control. Thus, not only is self-mixing, a common problem in direct conversion receivers, prevented, but also, because a smaller local oscillation driving signal is required, power consumption is significantly reduced.
摘要翻译： 一种频率转换器，包括：信号合成器元件，用于输入第一和第二输入信号以合成这些信号并输出合成信号，从该信号合成信号除去除了第二输入信号的频率以上的噪声; 幅度限制放大器元件，由差分放大电路组成，用于放大从信号合成器元件输出的合成信号，以输出具有恒定幅度的放大信号; 以及滤波器，用于输入从幅度限制放大器元件输出的放大信号，以去除不必要的信号分量以产生仅包括所需信号分量的基带信号。 此外，使用这种结构的变频器的无线电接收机被设计成将本地振荡器的输出输入到可变衰减器或可变增益放大器，以将可变衰减器或可变增益放大器的输出作为第一 输入到变频器的信号，以进行增益控制。 因此，不仅自发混合，直接转换接收器中的常见问题被阻止，而且由于需要较小的本地振荡驱动信号，所以功耗显着降低。
-
公开(公告)号：US20100237829A1
公开(公告)日：2010-09-23
申请号：US12726828
申请日：2010-03-18
IPC分类号： H02J7/00
CPC分类号： H02J7/0026 , H01M4/661 , H01M10/052 , H01M10/425 , H01M10/441 , H01M10/482 , Y02T10/7055
摘要： An assembled battery system includes an assembled battery including a plurality of electric cell blocks connected in series, the electric cell blocks each including at least one nonaqueous electrolyte secondary battery provided with a negative electrode current collector formed of aluminum or an aluminum alloy, a voltage measuring unit configured to measure a plurality of voltages of the electric cell blocks, a controller which controls charge/discharge of the assembled battery in accordance with the measured voltages, and bypass circuits connected in parallel to the electric cell blocks, the bypass circuits each bypassing a current that flows from a negative electrode of one of the electric cell blocks to a positive electrode of the one of electric cell blocks when the measured voltage of the one of electric cell blocks is a negative value not greater than a threshold value.
摘要翻译： 组合电池系统包括：串联连接的多个电池块的组电池，每个电池块包括至少一个设置有由铝或铝合金形成的负极集电体的非水电解质二次电池，电压测量 被配置为测量电池单元块的多个电压的单元，根据测量的电压控制组电池的充电/放电的控制器，以及与电池块并联连接的旁路电路，旁路电路绕过 当一个电池块的测量电压为不大于阈值的负值时，电流从电池单元块中的一个的负极流向电池单元块中的一个的正极。
-
公开(公告)号：US07075345B2
公开(公告)日：2006-07-11
申请号：US10207024
申请日：2002-07-30
申请人： Toshiyuki Umeda , Shoji Otaka , Tetsuro Itakura
发明人： Toshiyuki Umeda , Shoji Otaka , Tetsuro Itakura
IPC分类号： H03B19/00
CPC分类号： H03D7/1441 , H03D7/1433 , H03D7/1458 , H03D2200/0033 , H03D2200/0043 , H03D2200/0084
摘要： A frequency converter converts a first current signal having a first frequency into a second current signal having a second frequency different fro the first frequency. The frequency converter includes an adder and a switching circuit. The adder adds the first current signal and a reference current signal to output a third current signal. The switching circuit passes only that portion of the third current signal larger in magnitude than a threshold current to output the second current signal.
摘要翻译： 变频器将具有第一频率的第一电流信号转换成具有与第一频率不同的第二频率的第二电流信号。 变频器包括加法器和开关电路。 加法器将第一电流信号和参考电流信号相加以输出第三电流信号。 开关电路仅通过第三电流信号的大于阈值电流的部分，以输出第二电流信号。
-
公开(公告)号：US06954089B2
公开(公告)日：2005-10-11
申请号：US10776199
申请日：2004-02-12
申请人： Toshiyuki Umeda , Shoji Otaka , Tetsuro Itakura
发明人： Toshiyuki Umeda , Shoji Otaka , Tetsuro Itakura
CPC分类号： H03D7/1441 , H03D7/1433 , H03D7/1458 , H03D2200/0033 , H03D2200/0043 , H03D2200/0084
摘要： A frequency converter configured to convert a first current signal having a first frequency into a second current signal having a second frequency different from the first frequency is disclosed, which comprises an adder configured to add the first current signal and a predetermined reference current signal to output a third current signal corresponding to the sum of the first current signal and the reference current signal, and a switching circuit configured to pass only that portion of the third current signal which is larger in magnitude than a threshold current to output the second current signal.
摘要翻译： 公开了一种频率转换器，其被配置为将具有第一频率的第一电流信号转换成具有与第一频率不同的第二频率的第二电流信号，其包括加法器，其被配置为将第一电流信号和预定参考电流信号相加以输出 第三电流信号对应于第一电流信号和参考电流信号的和，以及开关电路，其被配置为仅通过大于阈值电流的第三电流信号的大小部分以输出第二电流信号。
-
公开(公告)号：US08508190B2
公开(公告)日：2013-08-13
申请号：US12726828
申请日：2010-03-18
IPC分类号： H02J7/00
CPC分类号： H02J7/0026 , H01M4/661 , H01M10/052 , H01M10/425 , H01M10/441 , H01M10/482 , Y02T10/7055
摘要： An assembled battery system includes an assembled battery including a plurality of electric cell blocks connected in series, the electric cell blocks each including at least one nonaqueous electrolyte secondary battery provided with a negative electrode current collector formed of aluminum or an aluminum alloy, a voltage measuring unit configured to measure a plurality of voltages of the electric cell blocks, a controller which controls charge/discharge of the assembled battery in accordance with the measured voltages, and bypass circuits connected in parallel to the electric cell blocks, the bypass circuits each bypassing a current that flows from a negative electrode of one of the electric cell blocks to a positive electrode of the one of electric cell blocks when the measured voltage of the one of electric cell blocks is a negative value not greater than a threshold value.
摘要翻译： 组合电池系统包括：串联连接的多个电池块的组电池，每个电池块包括至少一个设置有由铝或铝合金形成的负极集电体的非水电解质二次电池，电压测量 被配置为测量电池单元块的多个电压的单元，根据测量的电压控制组电池的充电/放电的控制器，以及与电池块并联连接的旁路电路，旁路电路绕过 当一个电池块的测量电压为不大于阈值的负值时，电流从电池单元块中的一个的负极流向电池单元块中的一个的正极。
-
公开(公告)号：US20060022722A1
公开(公告)日：2006-02-02
申请号：US11235264
申请日：2005-09-27
申请人： Toshiyuki Umeda , Shoji Otaka , Tetsuro Itakura
发明人： Toshiyuki Umeda , Shoji Otaka , Tetsuro Itakura
IPC分类号： H03B19/00
CPC分类号： H03D7/1441 , H03D7/1433 , H03D7/1458 , H03D2200/0033 , H03D2200/0043 , H03D2200/0084
摘要： A frequency converter converts a first current signal having a first frequency into a second current signal having a second frequency different from the first frequency. The frequency converter includes an adder and a switching circuit. The adder adds the first current signal and a reference current signal to output a third current signal. The switching circuit passes only that portion of the third current signal larger in magnitude than a threshold current to output the second current signal.
摘要翻译： 变频器将具有第一频率的第一电流信号转换成具有与第一频率不同的第二频率的第二电流信号。 变频器包括加法器和开关电路。 加法器将第一电流信号和参考电流信号相加以输出第三电流信号。 开关电路仅通过第三电流信号的大于阈值电流的部分，以输出第二电流信号。
-
公开(公告)号：US07123061B2
公开(公告)日：2006-10-17
申请号：US11235264
申请日：2005-09-27
申请人： Toshiyuki Umeda , Shoji Otaka , Tetsuro Itakura
发明人： Toshiyuki Umeda , Shoji Otaka , Tetsuro Itakura
IPC分类号： H03B19/00
CPC分类号： H03D7/1441 , H03D7/1433 , H03D7/1458 , H03D2200/0033 , H03D2200/0043 , H03D2200/0084
摘要： A frequency converter converts a first current signal having a first frequency into a second current signal having a second frequency different from the first frequency. The frequency converter includes an adder and a switching circuit. The adder adds the first current signal and a reference current signal to output a third current signal. The switching circuit passes only that portion of the third current signal larger in magnitude than a threshold current to output the second current signal.
摘要翻译： 变频器将具有第一频率的第一电流信号转换成具有与第一频率不同的第二频率的第二电流信号。 变频器包括加法器和开关电路。 加法器将第一电流信号和参考电流信号相加以输出第三电流信号。 开关电路仅通过第三电流信号的大于阈值电流的部分，以输出第二电流信号。
-
公开(公告)号：US20060245132A1
公开(公告)日：2006-11-02
申请号：US11411939
申请日：2006-04-27
申请人： Osamu Watanabe , Rui Ito , Shigehito Saigusa , Tetsuro Itakura
发明人： Osamu Watanabe , Rui Ito , Shigehito Saigusa , Tetsuro Itakura
IPC分类号： H02H3/20
CPC分类号： H03H11/1291
摘要： A time constant automatic adjusting circuit comprises: a filter circuit varying a phase of an clock signal to be input so as to output the clock signal; a phase comparison circuit comparing a phase of an output signal of the filter circuit with the phase of the clock signal, and outputting a predetermined voltage when the phase of the output signal and the phase of the clock signal are the same; at least three comparators comparing the output voltage with a plurality of different voltages; an up-down counter counting a number of output bits of either one of the at least three different voltages in accordance with an output result of the comparators; and a control circuit varying the time constant of the filter circuit in accordance with the number of output bits counted by the up-down counter.
-
-
-
-
-
-
-
-
-
搜索结果
128 条记录 (耗时 0.027 秒)
