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1. 发明申请

US20070190961A1 Semiconductor integrated circuit and semiconductor integrated circuit for radio communication 有权
标题翻译：半导体集成电路和无线电通信半导体集成电路
公开(公告)号：US20070190961A1
公开(公告)日：2007-08-16
申请号：US11585996
申请日：2006-10-25
申请人： Yutaka Igarashi , Yusaku Katsube , Akio Yamamoto
发明人： Yutaka Igarashi , Yusaku Katsube , Akio Yamamoto
IPC分类号： H04B1/06 , H04B1/28
CPC分类号： H04B1/30
摘要： In a signal receiving circuit of a direct conversion system applied with a semiconductor integrated circuit for radio communication having a PLL requiring a clock signal, an LNA requiring low-noise receiving characteristics, and others, a variable coupling line is provided between clock signal buffers and at an input stage of the PLL, so that coupling between the variable coupling line and an input terminal of the LNA and coupling between the variable coupling line and a GND terminal of the LNA are made equal to each other at frequencies of higher harmonic waves of a clock signal. When the input terminal and the GND terminal of the LNA are excited at the same phase, since no output occurs at an output terminal of the LNA, an output of the LNA does not contain any higher harmonic wave of a clock signal.
摘要翻译：在应用于具有需要时钟信号的PLL的无线电通信用半导体集成电路的直接转换系统的信号接收电路中，需要低噪声接收特性的LNA等，在时钟信号缓冲器和在PLL的输入级，使得可变耦合线与LNA的输入端之间的耦合以及可变耦合线与LNA的GND端之间的耦合使得在高次谐波的频率处彼此相等一个时钟信号。当LNA的输入端子和GND端子在相同相位被激励时，由于在LNA的输出端子处没有输出，所以LNA的输出不包含时钟信号的任何高次谐波。

2. 发明授权

US08594605B2 Semiconductor integrated circuit and operation method of the same 有权
标题翻译：半导体集成电路及其运算方法相同
公开(公告)号：US08594605B2
公开(公告)日：2013-11-26
申请号：US13357664
申请日：2012-01-25
申请人： Yusaku Katsube , Kosuke Tsuiji , Yutaka Igarashi , Akio Yamamoto
发明人： Yusaku Katsube , Kosuke Tsuiji , Yutaka Igarashi , Akio Yamamoto
IPC分类号： H04B1/10 , H04K3/00
CPC分类号： H03H11/1252 , H03H11/1291 , H03H2210/012 , H03H2210/015 , H03H2210/025 , H03H2210/028
摘要： The present invention is directed to accurately set a frequency characteristic of a filter integrated in a semiconductor integrated circuit. A semiconductor integrated circuit includes a filter circuit, a cutoff frequency calibration circuit, and a Q-factor calibration circuit. The cutoff frequency calibration circuit adjusts cutoff frequency of the filter circuit to a desired value by adjusting capacitance components of the filter circuit. After adjustment of the cutoff frequency of the filter circuit by the cutoff frequency calibration circuit, the Q-factor calibration circuit adjusts the Q factor of the filter circuit to a desired value by adjusting a resistance component of the filter circuit.
摘要翻译：本发明旨在精确地设定集成在半导体集成电路中的滤波器的频率特性。半导体集成电路包括滤波电路，截止频率校准电路和Q因子校准电路。截止频率校准电路通过调整滤波器电路的电容分量来将滤波器电路的截止频率调整到期望值。在通过截止频率校准电路调节滤波电路的截止频率之后，Q因子校准电路通过调整滤波器电路的电阻分量来将滤波器电路的Q因子调节到期望值。

3. 发明授权

US08525584B2 Automatic cutoff frequency adjusting circuit and portable digital assistant 有权
标题翻译：自动截止频率调节电路和便携式数字助理
公开(公告)号：US08525584B2
公开(公告)日：2013-09-03
申请号：US13180303
申请日：2011-07-11
申请人： Yusaku Katsube , Yutaka Igarashi , Akio Yamamoto
发明人： Yusaku Katsube , Yutaka Igarashi , Akio Yamamoto
IPC分类号： H03K5/00
CPC分类号： H03H11/1291 , H03J2200/08 , H03J2200/10
摘要： The disclosed invention enables the cutoff frequency of a filter to be automatically adjusted to an arbitrary setting value within the adjustment range. An automatic cutoff frequency adjusting circuit includes a voltage/current converter circuit, a charge circuit, a discharge circuit, a digital capacitance having a plurality of electrostatic capacitances, a comparator for comparing a voltage inputted to the digital capacitance with a reference voltage, and a capacitance control circuit for controlling the digital capacitance. The time until the comparator detects that the voltage inputted to the digital capacitance is higher than the reference voltage after a reset signal has become a predetermined logic level is measured, and the digital capacitance is controlled by repeating, under a predetermined condition, processing for obtaining a next setting value of the digital capacitance, based on a measurement result, a target value of the digital capacitance, and the current value of the digital capacitance.
摘要翻译：所公开的发明使得能够将滤波器的截止频率自动调整到调整范围内的任意设定值。自动截止频率调节电路包括电压/电流转换器电路，充电电路，放电电路，具有多个静电电容的数字电容，用于将输入到数字电容的电压与参考电压进行比较的比较器，以及用于控制数字电容的电容控制电路。在比较器检测到在复位信号已经变为预定逻辑电平之后，比较器检测到输入到数字电容的电压高于参考电压的时间，并且通过在预定条件下重复以获得的处理来控制数字电容基于测量结果，数字电容的目标值和数字电容的当前值的数字电容的下一个设定值。

4. 发明授权

US08463225B2 Semiconductor integrated circuit and operation method of the same 有权
标题翻译：半导体集成电路及其运算方法相同
公开(公告)号：US08463225B2
公开(公告)日：2013-06-11
申请号：US13353567
申请日：2012-01-19
申请人： Yutaka Igarashi , Yusaku Katsube
发明人： Yutaka Igarashi , Yusaku Katsube
IPC分类号： H04B1/28
CPC分类号： H04B1/30 , H03D2200/0045 , H03D2200/0047
摘要： The present invention is provided to shorten the period of DC offset cancellation operation. One of terminals of two calibration resistors is connected to the differential output terminals of an active low pass filter having a filter process and an amplification function, and two input terminals of a voltage comparator and two terminals of a switch are connected to the other terminal of the two calibration resistors. In a calculation period of calculating digital control signals for reducing DC offset voltage, the voltage comparator detects calibration voltage depending on a voltage drop of one of the calibration resistors caused by analog current of a digital-to-analog converter. In a calibration period of reducing the DC offset voltage, the calibration analog current of the digital-to-analog converter responding to the digital control signal is passed to the input side of the filter via the switch.
摘要翻译：提供本发明以缩短DC偏移消除操作的周期。两个校准电阻器的一个端子连接到具有滤波处理和放大功能的有源低通滤波器的差分输出端子，电压比较器的两个输入端子和开关的两个端子连接到两个校准电阻。在计算用于减小DC偏移电压的数字控制信号的计算周期中，电压比较器根据由数模转换器的模拟电流引起的校准电阻之一的电压降检测校准电压。在减小DC偏移电压的校准周期中，响应于数字控制信号的数模转换器的校准模拟电流通过开关传递到滤波器的输入侧。

5. 发明授权

US07565120B2 Semiconductor integrated circuit and semiconductor integrated circuit for radio communication 有权
标题翻译：半导体集成电路和无线电通信半导体集成电路
公开(公告)号：US07565120B2
公开(公告)日：2009-07-21
申请号：US11585996
申请日：2006-10-25
申请人： Yutaka Igarashi , Yusaku Katsube , Akio Yamamoto
发明人： Yutaka Igarashi , Yusaku Katsube , Akio Yamamoto
IPC分类号： H04B1/06
CPC分类号： H04B1/30
摘要： In a signal receiving circuit of a direct conversion system applied with a semiconductor integrated circuit for radio communication having a PLL requiring a clock signal, an LNA requiring low-noise receiving characteristics, and others, a variable coupling line is provided between clock signal buffers and at an input stage of the PLL, so that coupling between the variable coupling line and an input terminal of the LNA and coupling between the variable coupling line and a GND terminal of the LNA are made equal to each other at frequencies of higher harmonic waves of a clock signal. When the input terminal and the GND terminal of the LNA are excited at the same phase, since no output occurs at an output terminal of the LNA, an output of the LNA does not contain any higher harmonic wave of a clock signal.
摘要翻译：在应用于具有需要时钟信号的PLL的无线电通信用半导体集成电路的直接转换系统的信号接收电路中，需要低噪声接收特性的LNA等，在时钟信号缓冲器和在PLL的输入级，使得可变耦合线与LNA的输入端之间的耦合以及可变耦合线与LNA的GND端之间的耦合使得在高次谐波的频率处彼此相等一个时钟信号。当LNA的输入端子和GND端子在相同相位被激励时，由于在LNA的输出端子处没有输出，所以LNA的输出不包含时钟信号的任何高次谐波。

6. 发明授权

US07255479B2 Sealing device for linear guide apparatus 有权
标题翻译：直线导轨装置密封装置
公开(公告)号：US07255479B2
公开(公告)日：2007-08-14
申请号：US11378352
申请日：2006-03-20
申请人： Toru Tsukada , Yutaka Igarashi , Soichiro Kato , Toshikazu Yabe , Fumio Ueki
发明人： Toru Tsukada , Yutaka Igarashi , Soichiro Kato , Toshikazu Yabe , Fumio Ueki
IPC分类号： F16C29/06
CPC分类号： F16C29/086 , F16C29/0642 , F16C33/6611 , F16C33/6622 , F16C33/6648
摘要： In a linear guide apparatus including an axially extending guide rail, a slider engaged with the guide rail, and a plurality of rolling elements loaded into the slider, the linear guide apparatus further includes a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, in which the sealing device includes: a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, a connecting portion connecting the wing portions to be C-shaped substantially, and a pair of first recesses formed in the respective wing portions for fixing the lubricant-containing polymer member to the slider; a first plate member fitted to the lubricant-containing polymer member opposed to the slider; and a pair of first cylindrical members inserted to the respective first recesses.
摘要翻译：在包括轴向延伸的导轨，与导轨接合的滑块以及装载到滑块中的多个滚动元件的线性引导装置中，线性引导装置还包括固定到滑块的与导向件滑动接触的密封装置用于密封存在于导轨和滑块之间的间隙的导轨，其中密封装置包括：由含有润滑剂的合成树脂形成的含润滑剂的聚合物构件，并且具有与导轨接触以包围引导件的接触部分轨道，两个翼部，将翼部基本上连接成C形的连接部以及形成在各翼部中的一对第一凹部，用于将含润滑剂的聚合物构件固定到滑块; 安装在与滑块相对的含润滑剂的聚合物构件上的第一板构件; 以及插入到各个第一凹部中的一对第一圆柱形构件。

7. 发明申请

US20060165322A1 Sealing device for linear guide apparatus 有权
标题翻译：直线导轨装置密封装置
公开(公告)号：US20060165322A1
公开(公告)日：2006-07-27
申请号：US11378352
申请日：2006-03-20
申请人： Toru Tsukada , Yutaka Igarashi , Soichiro Kato , Toshikazu Yabe , Fumio Ueki
发明人： Toru Tsukada , Yutaka Igarashi , Soichiro Kato , Toshikazu Yabe , Fumio Ueki
IPC分类号： F16C33/10
CPC分类号： F16C29/086 , F16C29/0642 , F16C33/6611 , F16C33/6622 , F16C33/6648
摘要： In a linear guide apparatus including an axially extending guide rail, a slider engaged with the guide rail, and a plurality of rolling elements loaded into the slider, the linear guide apparatus further includes a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, in which the sealing device includes: a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, a connecting portion connecting the wing portions to be C-shaped substantially, and a pair of first recesses formed in the respective wing portions for fixing the lubricant-containing polymer member to the slider; a first plate member fitted to the lubricant-containing polymer member opposed to the slider; and a pair of first cylindrical members inserted to the respective first recesses.
摘要翻译：在包括轴向延伸的导轨，与导轨接合的滑块以及装载到滑块中的多个滚动元件的线性引导装置中，线性引导装置还包括固定到滑块的与导向件滑动接触的密封装置用于密封存在于导轨和滑块之间的间隙的导轨，其中密封装置包括：由含有润滑剂的合成树脂形成的含润滑剂的聚合物构件，并且具有与导轨接触以包围引导件的接触部分轨道，两个翼部，将翼部基本上连接成C形的连接部以及形成在各翼部中的一对第一凹部，用于将含润滑剂的聚合物构件固定到滑块; 安装在与滑块相对的含润滑剂的聚合物构件上的第一板构件; 以及插入到各个第一凹部中的一对第一圆柱形构件。

8. 发明授权

US07048443B2 Sealing device for linear guide apparatus 有权
公开(公告)号：US07048443B2
公开(公告)日：2006-05-23
申请号：US11115341
申请日：2005-04-27
申请人： Toru Tsukada , Yutaka Igarashi , Soichiro Kato , Toshikazu Yabe , Fumio Ueki
发明人： Toru Tsukada , Yutaka Igarashi , Soichiro Kato , Toshikazu Yabe , Fumio Ueki
IPC分类号： F16C29/06
CPC分类号： F16C29/086 , F16C29/0642 , F16C33/6611 , F16C33/6622 , F16C33/6648
摘要： In a linear guide apparatus including an axially extending guide rail, a slider engaged with the guide-rail, and a plurality of rolling elements loaded into the slider, the linear guide apparatus further includes a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, in which the sealing device includes a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, a connecting portion connecting the wing portions to be C-shaped substantially, and a pair of first recesses formed in the respective wing portions for fixing the lubricant-containing polymer member to the slider; a first plate member fitted to the lubricant-containing polymer member opposed to the slider; and a pair of first cylindrical members inserted to the respective first recesses.

9. 发明申请

US20050287966A1 Wireless communication system and semiconductor integrated circuit 有权
标题翻译：无线通信系统和半导体集成电路
公开(公告)号：US20050287966A1
公开(公告)日：2005-12-29
申请号：US11154665
申请日：2005-06-17
申请人： Daisuke Yoshimi , Akio Yamamoto , Yutaka Igarashi
发明人： Daisuke Yoshimi , Akio Yamamoto , Yutaka Igarashi
IPC分类号： H01Q11/12 , H03F3/21 , H04B7/00 , H04B7/005
CPC分类号： H04W52/52
摘要： A wireless communication system uses a transmission power detection circuit. The transmission power detection circuit has excellent linearity of detection output for transmission output power and can obtain detection output not having temperature dependence. The transmission power detection circuit has rectifying detection part that includes plural amplifiers connected in series and obtains detection output by taking out rectified outputs from emitters of input transistors of amplifiers of individual stages and synthesizes them. A compensation voltage generating circuit has a dummy amplifier having a construction similar to the amplifiers constituting the rectifying detection part and a coefficient circuit that changes output of the dummy amplifier at a specified ratio, and generates voltage for compensating temperature characteristics. Also included is an addition/subtraction circuit that obtains detection output free of temperature dependence by subtracting compensation voltage generated in the compensation voltage generating circuit from output voltage of the rectifying detection part.
摘要翻译：无线通信系统使用发送功率检测电路。传输功率检测电路具有良好的发送输出功率的检测输出线性度，可以获得不具有温度依赖性的检测输出。发送功率检测电路具有整流检测部，该整流检测部包括串联连接的多个放大器，通过从各个级的放大器的输入晶体管的发射极取出整流的输出而得到检测输出，并进行合成。补偿电压产生电路具有类似于构成整流检测部分的放大器的结构的虚拟放大器和以特定比率改变虚拟放大器的输出并产生用于补偿温度特性的电压的系数电路。还包括加法/减法电路，通过从整流检测部分的输出电压减去补偿电压产生电路中产生的补偿电压来获得没有温度依赖性的检测输出。

10. 发明授权

US06706964B2 Electronic device and method for manufacturing the same, and method for shielding printed circuit board 有权
标题翻译：电子设备及其制造方法以及屏蔽印刷电路板的方法
公开(公告)号：US06706964B2
公开(公告)日：2004-03-16
申请号：US10227037
申请日：2002-08-23
申请人： Yutaka Igarashi , Tadao Kishimoto
发明人： Yutaka Igarashi , Tadao Kishimoto
IPC分类号： H05K900
CPC分类号： H05K9/0022 , H05K1/0218 , H05K9/0043
摘要： An electronic device having a printed circuit board having a ground, an electrically insulating layer provided on a face of the printed circuit board, and an electromagnetic shielding layer adhered to the face of the printed circuit board through the electrically insulating layer. The ground of the printed circuit board and the electromagnetic shielding layer are conducted electrically.
摘要翻译：具有印刷电路板的电子设备具有接地，设置在印刷电路板的表面上的电绝缘层和通过电绝缘层粘附到印刷电路板的表面的电磁屏蔽层。印刷电路板和电磁屏蔽层的接地电导电。

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