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1. 发明授权

US07932773B2 Charge domain filter circuit 失效
标题翻译：电荷域滤波电路
公开(公告)号：US07932773B2
公开(公告)日：2011-04-26
申请号：US12273185
申请日：2008-11-18
申请人： Sachio Iida , Atsushi Yoshizawa
发明人： Sachio Iida , Atsushi Yoshizawa
IPC分类号： H04B1/10
CPC分类号： H03H19/004 , H03H15/00
摘要： A charge domain filter circuit includes a first signal output portion, at least one second signal output, portion, a third signal output portion, and an adder portion. The first signal output portion outputs a first signal that is sampled at a specified time interval. Each second signal, output portion outputs a second signal that is sampled after a specified delay after the first signal is sampled. Where a plurality of the second signal output portions is included, the second signals are sampled in succession. The third signal output portion outputs a third signal that is sampled after a specified delay after the last second signal is sampled. The adder portion adds the first, second, and third signals together and outputs the result. The capacitance ratio of the sampling capacitors in the first signal output portion and the second signal output portion is one of continuously or discretely varied.
摘要翻译：电荷域滤波器电路包括第一信号输出部分，至少一个第二信号输出部分，第三信号输出部分和加法器部分。第一信号输出部分输出以指定时间间隔采样的第一信号。每个第二信号，输出部分输出在第一信号被采样之后的指定延迟之后被采样的第二信号。在包括多个第二信号输出部分的情况下，连续采样第二信号。第三信号输出部分输出在最后一个第二信号被采样之后的指定延迟之后被采样的第三信号。加法器部分将第一，第二和第三信号加在一起并输出结果。第一信号输出部分和第二信号输出部分中的采样电容器的电容比是连续地或离散地变化的。

2. 发明授权

US07535288B2 Charge domain filter device 失效
标题翻译：电荷域滤波器
公开(公告)号：US07535288B2
公开(公告)日：2009-05-19
申请号：US11769594
申请日：2007-06-27
申请人： Sachio Iida
发明人： Sachio Iida
IPC分类号： H03K5/00
CPC分类号： H03H19/004 , H03H15/00
摘要： There is provided a charge domain filter device including a plurality of transconductors each of which converts an input voltage to a current and outputs the current and a filter unit that filters output signals from said plurality of transconductors by repeatedly charging and discharging a plurality of capacitors, wherein an impulse response of the charge domain filter device is obtained through convolution of a first impulse corresponding to a charge time length over which said capacitors are charged and a second impulse corresponding to each of said plurality of transconductors.
摘要翻译：提供了一种电荷域滤波器装置，其包括多个跨导体，每个跨导体将输入电压转换为电流并输出电流;以及滤波器单元，其通过重复地对多个电容器进行充电和放电来对来自所述多个跨导体的输出信号进行滤波，其中所述电荷域滤波器装置的脉冲响应通过对应于所述电容器被充电的充电时间长度的第一脉冲和对应于所述多个跨导体中的每一个的第二脉冲的卷积获得。

3. 发明申请

US20090082590A1 4-Mercaptophenyl ester of acetic acid and process for producing the same 审中-公开
标题翻译：乙酸4-巯基苯酯及其制备方法
公开(公告)号：US20090082590A1
公开(公告)日：2009-03-26
申请号：US11918618
申请日：2006-04-26
申请人： Koji Fujita , Sachio Iida , Mikio Yamamoto , Kohei Washizaki
发明人： Koji Fujita , Sachio Iida , Mikio Yamamoto , Kohei Washizaki
IPC分类号： C07C321/26 , C07C319/02
CPC分类号： C07C323/20 , C07C303/22 , C07C309/87 , C07C309/42
摘要： The present invention provides a 4-mercaptophenyl ester of acetic acid, which is useful as a raw material for synthesizing a developer, etc., and a process for producing the same. The present invention provides a 4-mercaptophenyl ester of acetic acid represented by Formula (1); wherein Ac is an acetyl group, and R is a C1-4 alkyl group, and a process for producing the 4-mercaptophenyl ester of acetic acid having a step of reducing a 4-halosulfonylphenyl ester of acetic acid represented by Formula (2); wherein Ac is an acetyl group, R is a C1-4 alkyl group, and X is a halogen atom.
摘要翻译：本发明提供了可用作合成显影剂等的原料的乙酸4-巯基苯酯及其制备方法。本发明提供由式（1）表示的乙酸4-巯基苯酯; 其中Ac是乙酰基，R是C1-4烷基，以及制备具有还原由式（2）表示的乙酸的4-卤代磺酰基苯基酯的步骤的乙酸4-巯基苯酯的方法; 其中Ac是乙酰基，R是C 1-4烷基，X是卤素原子。

4. 发明授权

US07437345B2 Image rejection mixer and multiband generator 失效
标题翻译：图像抑制混频器和多频带发生器
公开(公告)号：US07437345B2
公开(公告)日：2008-10-14
申请号：US10946063
申请日：2004-09-22
申请人： Sachio Iida
发明人： Sachio Iida
IPC分类号： G06N5/00
CPC分类号： H04B1/71635 , H03H2007/0192
摘要： The present invention suppresses a harmonic component without impairing the phase orthogonality of a pair of complex signals. A polyphase filter is configured so that K pieces of filter circuits, each of which comprises a resistor and a capacitor, are connected and +360/K degrees out of phase with a preceding one. Since counterclockwise rotation occurs when expression is given in terms of the complex plane, a notch occurs in a negative frequency region. A RC value is set so that a notch occurs in a specified frequency band to suppress a (4N+1)-order harmonic component. Since the polyphase filter has a symmetrical structure, an unbalanced component contained in an input signal is eliminated at a frequency that agrees with a pole determined by the RC value. This action improves the orthogonality.
摘要翻译：本发明抑制谐波分量而不损害一对复信号的相位正交性。多相滤波器被配置为使得K个滤波器电路中的每一个包括电阻器和电容器，并且与前一个相位相差+ 360度/ K度的相位。由于当以复平面表示表达式时发生逆时针旋转，所以在负频率区域发生切口。设定RC值，使得在规定频带内发生陷波，以抑制（4N + 1）次谐波分量。由于多相滤波器具有对称结构，所以输入信号中包含的不平衡分量以与由RC值确定的极点相一致的频率被消除。该动作提高了正交性。

5. 发明申请

US20070139117A1 Amplifier and communication apparatus 有权
标题翻译：放大器和通讯装置
公开(公告)号：US20070139117A1
公开(公告)日：2007-06-21
申请号：US10580645
申请日：2004-11-15
申请人： Sachio Iida
发明人： Sachio Iida
IPC分类号： H03F3/16
CPC分类号： H03F1/223 , H03F3/193 , H03F2200/294 , H03F2200/306 , H03F2200/372
摘要： A wide-band amplifier having a flat amplification characteristic over a wide frequency bandwidth, being prevented from degrading due to parasitic capacitance, and being short in group delay time. The wide-band amplifier includes a band-pass filter made of an LC parallel resonant circuit and an LCR series resonant circuit and provided in parallel as a load for a current output amplifier device. The band-pass filter has a plurality of poles as well as zeros provided therebetween in the s-plane, thereby improving a characteristic flatness in a passband. The output terminal of the amplifier device serves as an output terminal for the amplifier, so that the problem of group delay does not occur. A capacitance element between the output terminal of the amplifier and GND absorbs parasitic capacitance as part of constants, thereby preventing degradation of the frequency characteristic.
摘要翻译：在宽频带宽度上具有平坦放大特性的宽带放大器，由于寄生电容而被防止劣化，并且组延迟时间短。宽带放大器包括由LC并联谐振电路和LCR串联谐振电路构成的带通滤波器，并联提供作为电流输出放大器装置的负载。带通滤波器在s平面内具有多个极点以及其间设置的零点，从而提高通带中的特性平坦度。放大器装置的输出端子用作放大器的输出端子，从而不发生群延迟的问题。放大器和GND的输出端子之间的电容元件作为常数的一部分吸收寄生电容，从而防止频率特性的劣化。

6. 发明申请

US20060258309A1 Transmission method, transmitter, reception method, and receiver 有权
公开(公告)号：US20060258309A1
公开(公告)日：2006-11-16
申请号：US11488021
申请日：2006-07-18
申请人： Katsumi Watanabe , Sachio Iida , Mitsuhiro Suzuki
发明人： Katsumi Watanabe , Sachio Iida , Mitsuhiro Suzuki
IPC分类号： H04B7/08
CPC分类号： H04B1/7176 , H04B1/40 , H04B1/71635 , H04B1/71637
摘要： For the purpose of efficient transmission based on the UWB system, first and second baseband waveforms are generated at a cycle equivalent to an integral multiple of a carrier to have a specified phase difference from each other. The first baseband waveform is multiplied by the carrier and a first transmission data sequence to acquire a first transmission waveform. The second baseband waveform is multiplied by a phase shifted carrier and a second transmission data sequence to acquire a second transmission waveform. The first transmission waveform is mixed with the second transmission waveform to acquire a transmission signal. The transmission signal is transmitted as a π/2 shift BPSK signal to transmit a UWB signal. Selecting the baseband waveforms and the carrier makes it possible to configure the transmission band and easily provide division multiplexing transmission.

7. 发明申请

US20050075089A1 Image rejection mixer and multiband generator 审中-公开
标题翻译：图像抑制混频器和多频带发生器
公开(公告)号：US20050075089A1
公开(公告)日：2005-04-07
申请号：US10934423
申请日：2004-09-07
申请人： Sachio Iida
发明人： Sachio Iida
IPC分类号： H03H7/21 , H04B1/68 , H03L7/00 , H04B1/10 , H04B1/18 , H04B1/26 , H04B15/00
CPC分类号： H04B1/7163 , H03H7/21 , H03H2007/0192 , H04B1/68
摘要： The present invention suppresses a harmonic component without impairing the phase orthogonality of a pair of complex signals. A polyphase filter is configured so that K pieces of filter circuits, each of which comprises a resistor and a capacitor, are connected and +360/K degrees out of phase with a preceding one. Since counterclockwise rotation occurs when expression is given in terms of the complex plane, a notch occurs in a negative frequency region. A RC value is set so that a notch occurs in a specified frequency band to suppress a (4N+1)-order harmonic component. Since the polyphase filter has a symmetrical structure, an unbalanced component contained in an input signal is eliminated at a frequency that agrees with a pole determined by the RC value. This action improves the orthogonality.
摘要翻译：本发明抑制谐波分量而不损害一对复信号的相位正交性。多相滤波器被配置为使得K个滤波器电路中的每一个包括电阻器和电容器，并且与前一个相位相差+ 360度/ K度的相位。由于当以复平面表示表达式时发生逆时针旋转，所以在负频率区域发生切口。设定RC值，使得在规定频带内发生陷波，以抑制（4N + 1）次谐波分量。由于多相滤波器具有对称结构，所以输入信号中包含的不平衡分量以与由RC值确定的极点相一致的频率被消除。该动作提高了正交性。

8. 发明授权

US08664404B2 Method for producing 3-halo-1,2-benzisothiazoles 有权
标题翻译： 3-卤代-1,2-苯并异噻唑的制备方法
公开(公告)号：US08664404B2
公开(公告)日：2014-03-04
申请号：US13634450
申请日：2011-03-14
申请人： Shigeki Sakaue , Sachio Iida
发明人： Shigeki Sakaue , Sachio Iida
IPC分类号： C07D275/04
CPC分类号： C07D275/04
摘要： A method for producing a 3-halo-1,2-benzisothiazole represented by the general formula (2): wherein R1 is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, an alkoxycarbonyl group having 2 to 5 carbon atoms, a nitro group or a halogen atom, and X is a halogen atom, the method characterized by reacting a 1,2-benzisothiazol-3-one represented by the general formula (1): wherein R1 is the same group as the R1 defined in the above general formula (2), with a thionyl halide in a polar solvent. The 3-halo-1,2-benzisothiazole obtainable according to the method of the present invention is suitably used as production raw materials and the like for a medicament and the like.
摘要翻译：由通式（2）表示的3-卤代-1,2-苯并异噻唑的制造方法：其中，R1是氢原子，碳原子数1〜4的烷基，碳原子数1〜4的烷氧基，具有2至5个碳原子的烷氧基羰基，硝基或卤素原子，X是卤素原子，其特征在于使由通式（1）表示的1,2-苯并异噻唑-3-酮：其中 R1与上述通式（2）中定义的R 1相同，在极性溶剂中与亚硫酰卤反应。根据本发明方法获得的3-卤代-1,2-苯并异噻唑适合用作药物等的生产原料等。

9. 发明授权

US08618892B2 Communication device and communication system 有权
标题翻译：通信设备和通信系统
公开(公告)号：US08618892B2
公开(公告)日：2013-12-31
申请号：US13085858
申请日：2011-04-13
申请人： Sachio Iida
发明人： Sachio Iida
IPC分类号： H01P5/00 , H01P1/00
CPC分类号： H01P5/085 , H01P1/213 , H01P5/08
摘要： There is provided a communication system including a transmitter and a receiver, each including a communication circuit unit that processes a high-frequency signal for transmitting data, a band-pass filter, and a high frequency coupler, a distributed constant line connecting the high frequency coupler and the band-pass filter of the transmitter, and a distributed constant line connecting the high frequency coupler and the band-pass filter of the receiver, wherein an electrical length of the distributed constant line of the transmitter is different from an electrical length of the distributed constant line of the receiver.
摘要翻译：提供了一种包括发射机和接收机的通信系统，每个通信系统包括处理用于发送数据的高频信号的通信电路单元，带通滤波器和高频耦合器，连接高频耦合器和发送器的带通滤波器，以及连接接收器的高频耦合器和带通滤波器的分布常数线路，其中发射机的分布常数线路的电长度不同于接收机的分布常数线路。

10. 发明申请

US20130049881A1 FILTER CIRCUIT AND RADIO TERMINAL INCLUDING FILTER CIRCUIT 失效
标题翻译：滤波电路和无线电终端，包括滤波电路
公开(公告)号：US20130049881A1
公开(公告)日：2013-02-28
申请号：US13553951
申请日：2012-07-20
申请人： Sachio Iida
发明人： Sachio Iida
IPC分类号： H01P1/20 , H01P1/10
CPC分类号： H03H19/004 , H03H19/008
摘要： There is provided a filter circuit including a passive mixer circuit, and a passive switched capacitor circuit that is connected to a rear stage of the passive mixer and includes a flying capacitor. The passive mixer circuit generates a baseband signal by multiplying an input signal supplied from a predetermined signal source impedance by each local oscillation signal and outputs the baseband signal to the passive switched capacitor circuit, the passive switched capacitor circuit performs predetermined filtering on the baseband signal supplied from the passive mixer circuit and outputs the processed baseband signal, and a capacitance of the flying capacitor of the passive switched capacitor circuit is a capacitance by which input impedance of the passive mixer circuit is matched to the signal source impedance.
摘要翻译：提供了一种包括无源混频器电路和无源开关电容器电路的滤波电路，其被连接到无源混频器的后级并且包括飞行电容器。无源混频器电路通过将从预定信号源阻抗提供的输入信号乘以每个本地振荡信号产生基带信号，并将基带信号输出到无源开关电容器电路，无源开关电容器电路对提供的基带信号执行预定滤波从无源混频器电路输出处理后的基带信号，无源开关电容电路的飞电容器的电容是无源混频器电路的输入阻抗与信号源阻抗匹配的电容。

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