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1. 发明申请

US20080139163A1 SEMICONDUCTOR CIRCUIT FOR WIRELESS RECEIVING PROVIDED WITH CONTROLLER CIRCUIT FOR CONTROLLING BIAS CURRENT 有权
标题翻译：用于控制电路的无线接收的半导体电路用于控制偏置电流
公开(公告)号：US20080139163A1
公开(公告)日：2008-06-12
申请号：US11951071
申请日：2007-12-05
申请人： Yasuo Oba , Hidehiko Kurimoto
发明人： Yasuo Oba , Hidehiko Kurimoto
IPC分类号： H04B1/16
CPC分类号： H04B1/28 , H04B1/18
摘要： A constant voltage source supplies a bias current to a wireless receiver circuit. A bias current detector circuit detects the bias current, and outputs a detection result to a current controller circuit. The current controller circuit outputs the detection result of the bias current to a memory circuit. The current controller circuit controls the bias current detector circuit to stop operating thereof, and then controls the bias current to decrease when the detected bias current is larger than a predetermined first threshold value and controls the bias current to increase when the detected bias current is smaller than a second threshold value smaller than the first threshold value, based on the detection result stored in the memory circuit.
摘要翻译：恒定电压源向无线接收器电路提供偏置电流。偏置电流检测器电路检测偏置电流，并将检测结果输出到电流控制器电路。电流控制器电路将偏置电流的检测结果输出到存储电路。电流控制器电路控制偏置电流检测器电路以停止其工作，然后当检测到的偏置电流大于预定的第一阈值时控制偏置电流减小，并且当检测到的偏置电流较小时控制偏置电流增加比基于存储在存储器电路中的检测结果小于第一阈值的第二阈值。

2. 发明授权

US07492216B2 Filtering apparatus for correcting variation of CR-product 失效
标题翻译：用于校正CR产品变化的过滤装置
公开(公告)号：US07492216B2
公开(公告)日：2009-02-17
申请号：US11783059
申请日：2007-04-05
申请人： Hidehiko Kurimoto , Yasuo Oba
发明人： Hidehiko Kurimoto , Yasuo Oba
IPC分类号： H03K5/00
CPC分类号： H03H11/1291 , H03H2210/021 , H03H2210/043
摘要： A filtering apparatus includes a main filter, a variation detection circuit, and a variation correction circuit. The variation detection circuit includes a reference filter having at least one resistor and at least one capacitor, detects a variation of CR-product based on the resistor and the capacitor of the reference filter in response to each of a plurality of reference signals having different frequencies from each other, and then outputs a variation detection signal indicating a detected result. The variation correction circuit corrects frequency characteristics of the main filter on the basis of the variation detection signal.
摘要翻译：滤波装置包括主滤波器，变化检测电路和变化校正电路。变化检测电路包括具有至少一个电阻器和至少一个电容器的参考滤波器，响应于具有不同频率的多个参考信号中的每一个，基于电阻器和参考滤波器的电容器检测CR乘积的变化然后输出指示检测结果的变化检测信号。变化校正电路根据变化检测信号校正主滤波器的频率特性。

3. 发明授权

US07835718B2 Semiconductor circuit for wireless receiving provided with controller circuit for controlling bias current 有权
标题翻译：用于无线接收的半导体电路具有用于控制偏置电流的控制电路
公开(公告)号：US07835718B2
公开(公告)日：2010-11-16
申请号：US11951071
申请日：2007-12-05
申请人： Yasuo Oba , Hidehiko Kurimoto
发明人： Yasuo Oba , Hidehiko Kurimoto
IPC分类号： H04B1/16 , H04K3/00
CPC分类号： H04B1/28 , H04B1/18
摘要： A constant voltage source supplies a bias current to a wireless receiver circuit. A bias current detector circuit detects the bias current, and outputs a detection result to a current controller circuit. The current controller circuit outputs the detection result of the bias current to a memory circuit. The current controller circuit controls the bias current detector circuit to stop operating thereof, and then controls the bias current to decrease when the detected bias current is larger than a predetermined first threshold value and controls the bias current to increase when the detected bias current is smaller than a second threshold value smaller than the first threshold value, based on the detection result stored in the memory circuit.
摘要翻译：恒定电压源向无线接收器电路提供偏置电流。偏置电流检测器电路检测偏置电流，并将检测结果输出到电流控制器电路。电流控制器电路将偏置电流的检测结果输出到存储电路。电流控制器电路控制偏置电流检测器电路以停止其工作，然后当检测到的偏置电流大于预定的第一阈值时控制偏置电流减小，并且当检测到的偏置电流较小时控制偏置电流增加比基于存储在存储器电路中的检测结果小于第一阈值的第二阈值。

4. 发明申请

US20100231409A1 COMMUNICATION CONTROLLER CIRCUIT FOR CONTROLLING CONTROLLED UNITS 审中-公开
标题翻译：用于控制控制单元的通信控制器电路
公开(公告)号：US20100231409A1
公开(公告)日：2010-09-16
申请号：US12293677
申请日：2007-03-23
申请人： Shinichi Okada , Yasuo Oba , Hidehiko Kurimoto , Seiichi Muroya
发明人： Shinichi Okada , Yasuo Oba , Hidehiko Kurimoto , Seiichi Muroya
IPC分类号： H04Q3/42
CPC分类号： G06F13/387
摘要： A communication control circuit includes a shift register and a control data selector, and controls controlled units according to a data signal, a clock signal and a strobe signal inputted via three serial signal lines. The shift register serial-to-parallel converts the data signal sequentially taken in according to the clock signal into a converted signal, and outputs the converted signal. The control data selector selects control data for controlling the corresponding controlled unit from the signal from the shift register, in response to a device definition signal for identifying the communication control circuit, and outputs the same control data.
摘要翻译：通信控制电路包括移位寄存器和控制数据选择器，并且根据经由三个串行信号线输入的数据信号，时钟信号和选通信号来控制受控单元。移位寄存器串并转换将根据时钟信号顺序取入的数据信号转换为转换信号，并输出转换后的信号。响应于用于识别通信控制电路的设备定义信号，控制数据选择器从来自移位寄存器的信号中选择用于控制相应受控单元的控制数据，并输出相同的控制数据。

5. 发明申请

US20080136547A1 Filtering apparatus for correcting variation of CR-product 失效
标题翻译：用于校正CR产品变化的过滤装置
公开(公告)号：US20080136547A1
公开(公告)日：2008-06-12
申请号：US11783059
申请日：2007-04-05
申请人： Hidehiko Kurimoto , Yasuo Oba
发明人： Hidehiko Kurimoto , Yasuo Oba
IPC分类号： H04B3/04
CPC分类号： H03H11/1291 , H03H2210/021 , H03H2210/043
摘要： A filtering apparatus includes a main filter, a variation detection circuit, and a variation correction circuit. The variation detection circuit includes a reference filter having at least one resistor and at least one capacitor, detects a variation of CR-product based on the resistor and the capacitor of the reference filter in response to each of a plurality of reference signals having different frequencies from each other, and then outputs a variation detection signal indicating a detected result. The variation correction circuit corrects frequency characteristics of the main filter on the basis of the variation detection signal.
摘要翻译：滤波装置包括主滤波器，变化检测电路和变化校正电路。变化检测电路包括具有至少一个电阻器和至少一个电容器的参考滤波器，响应于具有不同频率的多个参考信号中的每一个，基于电阻器和参考滤波器的电容器检测CR乘积的变化然后输出指示检测结果的变化检测信号。变化校正电路根据变化检测信号校正主滤波器的频率特性。

6. 发明授权

US5822236A Analog FIFO memory and switching device having a reset operation 失效
标题翻译：具有复位操作的模拟FIFO存储器和开关器件
公开(公告)号：US5822236A
公开(公告)日：1998-10-13
申请号：US863209
申请日：1997-05-27
申请人： Shiro Dosho , Hidehiko Kurimoto , Naoshi Yanagisawa
发明人： Shiro Dosho , Hidehiko Kurimoto , Naoshi Yanagisawa
IPC分类号： G11C27/00 , G11C27/04 , H03H19/00 , H04N9/78
CPC分类号： G11C27/04 , G11C27/00 , H03H19/004 , H04N9/78
摘要： The invention provides an analog FIFO memory from which a written analog signal can be accurately read by eliminating errors in the analog signal between the write operation and the read operation. Prior to the read operation for reading the analog signal from a memory cell through a memory bus, a reset operation for setting the memory bus at a predetermined potential is conducted so as to remove a charge stored in a parasitic capacitance of the memory bus. The input terminal of a read circuit is set at a predetermined potential, with a write circuit disconnected from the memory bus by using an input circuit and with the read circuit connected with the memory bus by using an output circuit. In this manner, the memory bus is set at the predetermined potential, and the charge stored in the parasitic capacitance is discharged. At this point, a switch in each memory cell is in an off-state, and hence, a charge corresponding to the analog signal can be retained in the memory cell.
摘要翻译：本发明提供了一种模拟FIFO存储器，通过消除写入操作和读取操作之间的模拟信号中的错误，可以准确地读取写入的模拟信号。在从存储器单元通过存储器总线读取模拟信号的读取操作之前，进行用于将存储器总线设置在预定电位的复位操作，以便消除存储在存储器总线的寄生电容中的电荷。读取电路的输入端子通过使用输入电路和与存储器总线连接的读取电路通过使用输出电路将写入电路从存储器总线断开而被设置在预定电位。以这种方式，将存储器总线设置在预定电位，并且存储在寄生电容中的电荷被放电。此时，每个存储单元中的开关处于截止状态，因此可以将与模拟信号相对应的电荷保留在存储单元中。

7. 发明授权

US07801503B2 Direct conversion receiver circuit 有权
标题翻译：直接转换接收电路
公开(公告)号：US07801503B2
公开(公告)日：2010-09-21
申请号：US11400936
申请日：2006-04-10
申请人： Hidehiko Kurimoto
发明人： Hidehiko Kurimoto
IPC分类号： H04B1/06
CPC分类号： H03D3/008
摘要： A receiver circuit includes a low noise amplifier (LNA) 1 to which a received signal is input, a mixer 2 for mixing an output of the LNA and a local signal, a first low-pass filter 3 for receiving an output of the mixer, and a composite amplifier in which a fixed gain amplifier 4, a high-pass filter 5, and a gain control amplifier 6 are connected in this order from the input side. An output of the first low-pass filter is input to the fixed gain amplifier. The gain of the fixed gain amplifier is 0 dB or more. The maximum gain of the gain control amplifier is 0 dB or less. The receiver circuit can suppress a transient response due to DC voltage fluctuations, even if the gains are changed while signals are received in a communication mode that performs continuous reception.
摘要翻译：接收机电路包括：输入接收信号的低噪声放大器（LNA）1，用于混合LNA的输出的混合器2和本地信号;接收混频器的输出的第一低通滤波器3，以及其中固定增益放大器4，高通滤波器5和增益控制放大器6从输入侧依次连接的复合放大器。第一低通滤波器的输出被输入到固定增益放大器。固定增益放大器的增益为0 dB以上。增益控制放大器的最大增益为0 dB或更小。即使在以连续接收的通信方式接收信号的同时，接收电路也可以抑制由于直流电压波动引起的瞬态响应。

8. 发明申请

US20060001482A1 Filter device 审中-公开
标题翻译：过滤装置
公开(公告)号：US20060001482A1
公开(公告)日：2006-01-05
申请号：US10535542
申请日：2003-11-17
申请人： Makoto Nakamura , Takuji Yoneda , Hidehiko Kurimoto , Takeaki Watanabe
发明人： Makoto Nakamura , Takuji Yoneda , Hidehiko Kurimoto , Takeaki Watanabe
IPC分类号： H03B1/00 , H03K5/00 , H04B1/10
CPC分类号： H03H11/1291 , H03L7/00
摘要： A filter device is provided that can easily achieve reduction in current consumption and whose variations can be corrected. A phase difference of a reference filter is detected by a phase difference detector, a control signal for correcting variations that is obtained as a result of the detection is held in a register, and a cut-off frequency of a main filter is selected according to the control signal thus held. Thus, once variations are detected, the reference filter and the phase difference detector that are used for detection of variations become no longer necessary and their operations can be halted, thereby achieving reduction in current consumption.
摘要翻译：提供一种滤波器装置，其可以容易地实现电流消耗的降低并且可以校正其变化。通过相位差检测器检测参考滤波器的相位差，将用于校正作为检测结果获得的变化的控制信号保持在寄存器中，并根据主频率选择主滤波器的截止频率由此控制信号。因此，一旦检测到变化，就不再需要用于检测变化的参考滤波器和相位差检测器，并且可以停止它们的操作，从而实现电流消耗的降低。

9. 发明申请

US20050186932A1 Receiver circuit 失效
标题翻译：接收电路
公开(公告)号：US20050186932A1
公开(公告)日：2005-08-25
申请号：US11041868
申请日：2005-01-25
申请人： Hidehiko Kurimoto , Makoto Nakamura , Tomonori Nakajima
发明人： Hidehiko Kurimoto , Makoto Nakamura , Tomonori Nakajima
IPC分类号： H04B1/00 , H04B1/06 , H04B1/16 , H04B1/30 , H04B15/00
CPC分类号： H04B1/1615 , H04B1/30 , H04W52/028 , Y02D70/40
摘要： Interruption of a reception signal is achieved by placing a first low noise amplifier into the sleep state, and short-circuiting a shunt switch provided between differential input terminals of a second low noise amplifier during a DC offset canceling period. Further, an antenna switch is switched to a circuit system where DC offset canceling is not performed for preventing the input of the reception signal to a circuit system where DC offset canceling is performed.
摘要翻译：接收信号的中断通过将第一低噪声放大器置于睡眠状态，并且在DC偏移消除周期期间使设置在第二低噪声放大器的差分输入端之间的分流开关短路来实现。此外，天线开关切换到电路系统，其中不执行DC偏移抵消以防止将接收信号输入到执行DC偏移消除的电路系统。

10. 发明申请

US20070176682A1 Receiving circuit, and receiving apparatus and transmitting/receiving apparatus using the receiving circuit 失效
标题翻译：接收电路，以及使用接收电路的接收装置和发送/接收装置
公开(公告)号：US20070176682A1
公开(公告)日：2007-08-02
申请号：US10591850
申请日：2005-03-07
申请人： Makoto Nakamura , Hidehiko Kurimoto , Kaoru Ishida
发明人： Makoto Nakamura , Hidehiko Kurimoto , Kaoru Ishida
IPC分类号： H03G3/00
CPC分类号： H03G1/0088 , H03G3/3052 , H04B1/30
摘要： An object of the invention is to provide a receiving circuit where the quality of reception can be prevented from deteriorating when the gain changes, so that the good quality of the received signal can be preserved, as well as a receiving apparatus and a transmitting/receiving apparatus using the receiving circuit. In the configuration of the invention, a switch (113) is converted to a short state in response to a change in the gain of a variable gain amplifier (107) by means of a gain control apparatus 112, and thereby, the output terminal of a high pass filter (111) is fixed at a reference voltage and the cutoff frequency of a low pass filter (108) is increased. As a result, the period during which the DC voltage has transient response properties in the low pass filter (108) can be shortened, and this transient response prevented from passing through the high pass filter (111).
摘要翻译：本发明的目的是提供一种接收电路，其中当增益改变时可以防止接收质量恶化，从而可以保持接收信号的良好质量，以及接收装置和发送/接收使用接收电路的装置。在本发明的结构中，通过增益控制装置112响应于可变增益放大器（107）的增益的变化而将开关（113）转换为短状态，由此，输出端子高通滤波器（111）被固定在参考电压上，并且低通滤波器（108）的截止频率增加。结果，可以缩短在低通滤波器（108）中具有瞬态响应特性的直流电压的周期，并且防止该瞬态响应通过高通滤波器（111）。

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