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1. 发明申请

US20090033805A1 Tuner and portable device using the same 审中-公开
标题翻译：调谐器和便携式设备使用相同
公开(公告)号：US20090033805A1
公开(公告)日：2009-02-05
申请号：US10584790
申请日：2005-12-09
申请人： Eiji Miyake , Kenji Adachi , Hiroaki Ozeki , Osamu Asayama
发明人： Eiji Miyake , Kenji Adachi , Hiroaki Ozeki , Osamu Asayama
IPC分类号： H04N5/50
CPC分类号： H04N5/21 , H03F3/191 , H03F2200/372 , H04B1/1036 , H04B1/26 , H04N5/4446 , H04N5/64 , H04N21/41407 , H04N21/426
摘要： A tuner includes an input terminal operable to receive a high-frequency signal including a first high-frequency signal and a second high-frequency signal. The second high-frequency signal has a level larger than that of the first signal. The tuner further includes a first filter having an input port coupled to the input terminal for allowing a signal having the first frequency to pass therethrough and for attenuating a signal having the second frequency, a high-frequency amplifier coupled to an output port of the first filter, a second filter having an input port coupled to an output of the high-frequency amplifier for allowing a signal having the first frequency to pass therethrough and for attenuating the signal having the second frequency, a local oscillator, and a mixer for mixing the output of the high-frequency amplifier with an output of the local oscillator. This tuner has a high receiving sensitivity even when the tuner receives a high-power interference signal near a receiving range thereof and in a weak electric field.
摘要翻译：调谐器包括可操作以接收包括第一高频信号和第二高频信号的高频信号的输入端子。第二高频信号的电平大于第一高频信号的电平。调谐器还包括第一滤波器，其具有耦合到输入端子的输入端口，用于允许具有第一频率的信号通过，并且用于衰减具有第二频率的信号，耦合到第一频率的输出端口的高频放大器滤波器，具有耦合到高频放大器的输出的输入端口的第二滤波器，用于允许具有第一频率的信号通过，并且用于衰减具有第二频率的信号，本地振荡器和混频器输出具有本地振荡器输出的高频放大器。即使当调谐器在接收范围内接收大功率干扰信号并且在弱电场中时，该调谐器也具有高的接收灵敏度。

2. 发明授权

US07187733B2 High-frequency signal receiver 失效
标题翻译：高频信号接收机
公开(公告)号：US07187733B2
公开(公告)日：2007-03-06
申请号：US10413652
申请日：2003-04-15
申请人： Akira Fujishima , Kenji Adachi , Hirotoshi Takeuchi , Yasuo Oba , Ippei Kanno , Hiroaki Ozeki
发明人： Akira Fujishima , Kenji Adachi , Hirotoshi Takeuchi , Yasuo Oba , Ippei Kanno , Hiroaki Ozeki
IPC分类号： H04L27/08
CPC分类号： H03G3/3068
摘要： A high-frequency signal receiver includes a variable gain amplifier for amplifying a high frequency signal input thereto, a local oscillator, a mixer for mixing a signal output from the variable gain amplifier and a signal output from the local oscillator, a filter for receiving a signal output from the mixer, a gain controller for outputting a voltage according to the signal output from the mixer; and a weighting circuit for weighting and summing a control voltage and the signal output from the gain controller for controlling the gain of the variable gain amplifier. The high-frequency signal receiver hence creates a small amount of signal error even when the input signal includes a large interference signal adjacent to a desired signal.
摘要翻译：高频信号接收机包括用于放大输入到其中的高频信号的可变增益放大器，本地振荡器，用于混合从可变增益放大器输出的信号和从本地振荡器输出的信号的混频器，用于接收来自混频器的信号输出;增益控制器，用于根据从混频器输出的信号输出电压; 以及用于对控制电压进行加权和求和并从增益控制器输出的信号用于控制可变增益放大器的增益的加权电路。因此，即使当输入信号包括与期望信号相邻的大的干扰信号时，高频信号接收器也产生少量的信号误差。

3. 发明授权

US07457600B2 VCO device 失效
标题翻译： VCO器件
公开(公告)号：US07457600B2
公开(公告)日：2008-11-25
申请号：US10526472
申请日：2004-06-24
申请人： Takeshi Fujii , Kenji Adachi , Hiroaki Ozeki , Mineyuki Iwaida
发明人： Takeshi Fujii , Kenji Adachi , Hiroaki Ozeki , Mineyuki Iwaida
IPC分类号： H04B7/00
CPC分类号： H03L7/099 , H03L7/10 , H03L2207/06
摘要： VCO (voltage-controlled oscillator) device used for a radio unit such as a television broadcast receiver. A VCO device oscillating in a wide band of oscillation frequency and capable of realizing low power consumption is provided. VCO circuit group 4 oscillates signals of frequencies corresponding to control voltage Vt applied to frequency control voltage terminal 8. LO signal selecting means 3 selects a required output signal from VCO circuit group 4. PLL 6 frequency-divides local signal fvco selected by LO signal selecting means 3, compares a phase thereof with a phase of a reference signal and outputs a signal converted from a phase difference. Loop filter 7 smoothes the output signal from PLL 6, outputs control voltage Vt that is a frequency control voltage and outputs the local-signal selected by signal selecting means 3 to high frequency signal processing means 1.
摘要翻译：用于诸如电视广播接收机的无线电单元的VCO（压控振荡器）装置。提供了在宽频带振荡频率下振荡并且能够实现低功耗的VCO器件。 VCO电路组4振荡对应于施加到频率控制电压端子8的控制电压Vt的频率的信号。 LO信号选择装置3从VCO电路组4中选择所需的输出信号。 PLL 6对由LO信号选择装置3选择的本地信号fvco进行分频，将其相位与参考信号的相位进行比较，并输出从相位差转换的信号。环路滤波器7平滑来自PLL 6的输出信号，输出作为频率控制电压的控制电压Vt，并将由信号选择装置3选择的局部信号输出到高频信号处理装置1。

4. 发明申请

US20060128335A1 Vco device 失效
标题翻译： Vco设备
公开(公告)号：US20060128335A1
公开(公告)日：2006-06-15
申请号：US10526472
申请日：2004-06-24
申请人： Takeshi Fujii , Kenji Adachi , Hiroaki Ozeki , Mineyuki Iwaida
发明人： Takeshi Fujii , Kenji Adachi , Hiroaki Ozeki , Mineyuki Iwaida
IPC分类号： H04B1/40 , H04B1/06
CPC分类号： H03L7/099 , H03L7/10 , H03L2207/06
摘要： VCO (voltage-controlled oscillator) device used for a radio unit such as a television broadcast receiver. A VCO device oscillating in a wide band of oscillation frequency and capable of realizing low power consumption is provided. VCO circuit group 4 oscillates signals of frequencies corresponding to control voltage Vt applied to frequency control voltage terminal 8. LO signal selecting means 3 selects a required output signal from VCO circuit group 4. PLL 6 frequency-divides local signal fvco selected by LO signal selecting means 3, compares a phase thereof with a phase of a reference signal and outputs a signal converted from a phase difference. Loop filter 7 smoothes the output signal from PLL 6, outputs control voltage Vt that is a frequency control voltage and outputs the local-signal selected by signal selecting means 3 to high frequency signal processing means 1.
摘要翻译：用于诸如电视广播接收机的无线电单元的VCO（压控振荡器）装置。提供了在宽频带振荡频率下振荡并且能够实现低功耗的VCO器件。 VCO电路组4振荡对应于施加到频率控制电压端子8的控制电压Vt的频率的信号。 LO信号选择装置3从VCO电路组4中选择所需的输出信号。 PLL 6对由LO信号选择装置3选择的本地信号fvco进行分频，将其相位与参考信号的相位进行比较，并输出从相位差转换的信号。环路滤波器7平滑来自PLL 6的输出信号，输出作为频率控制电压的控制电压Vt，并将由信号选择装置3选择的局部信号输出到高频信号处理装置1。

5. 发明授权

US08064558B2 Receiving apparatus 失效
标题翻译：接收装置
公开(公告)号：US08064558B2
公开(公告)日：2011-11-22
申请号：US12090121
申请日：2007-08-28
申请人： Yasunobu Tsukio , Hiroaki Ozeki
发明人： Yasunobu Tsukio , Hiroaki Ozeki
IPC分类号： H04L7/00
CPC分类号： H04B7/08 , H04N5/4401 , H04N21/4263 , H04N21/4345 , H04N21/4382
摘要： A receiving apparatus includes a first receiver, a second receiver, a received signal synthesizer connected to the first and second receivers, a synchronizing signal synthesizer connected to the first and second receivers, and a synchronization detector connected to the synchronizing signal synthesizer. In this structure, synchronization determination is performed using a synchronizing signal of either the first or second receiver, and diversity reception is performed using the received signals of the first and second receivers.
摘要翻译：接收装置包括第一接收机，第二接收机，连接到第一和第二接收机的接收信号合成器，连接到第一和第二接收机的同步信号合成器以及连接到同步信号合成器的同步检测器。在该结构中，使用第一或第二接收机的同步信号来执行同步确定，并且使用第一和第二接收机的接收信号执行分集接收。

6. 发明申请

US20100311382A1 RECEPTION DEVICE AND ELECTRONIC DEVICE USING THE SAME 审中-公开
标题翻译：接收装置和使用该接收装置的电子装置
公开(公告)号：US20100311382A1
公开(公告)日：2010-12-09
申请号：US12867121
申请日：2009-04-16
申请人： Takashi Umeda , Hiroaki Ozeki , Yosuke Wada , Takeshi Fujii
发明人： Takashi Umeda , Hiroaki Ozeki , Yosuke Wada , Takeshi Fujii
IPC分类号： H04B15/00
CPC分类号： H03D7/165 , H04N5/455 , H04N5/46 , H04N21/42638 , H04N21/4382
摘要： Provided is a reception device that selectively receives an analog broadcast signal and a digital broadcast signal. The reception device includes: an oscillation unit operable to output an oscillator signal; a frequency conversion unit operable to output an IF (Intermediate Frequency) signal group based on the oscillator signal outputted from the oscillation unit and a reception signal; a filter unit connected to an output side of the frequency conversion unit; and a control unit operable to control a frequency of the oscillator signal outputted from the oscillation unit. The control unit controls: the frequency of the oscillator signal to be within a reception frequency band when receiving the digital broadcast signal; and the frequency of the oscillator signal to be outside the reception frequency band when receiving the analog broadcast signal. With this configuration, it is possible to improve reception quality when receiving an analog broadcast signal.
摘要翻译：提供了选择性地接收模拟广播信号和数字广播信号的接收装置。接收装置包括：振荡单元，用于输出振荡器信号; 频率转换单元，用于基于从振荡单元输出的振荡器信号和接收信号输出IF（中频）信号组; 连接到所述变频单元的输出侧的滤波器单元; 以及控制单元，用于控制从振荡单元输出的振荡器信号的频率。控制单元控制：当接收到数字广播信号时，振荡器信号的频率在接收频带内; 并且当接收到模拟广播信号时，振荡器信号的频率在接收频带之外。利用这种配置，可以在接收模拟广播信号时改善接收质量。

7. 发明申请

US20100260295A1 FILTER CIRCUIT, AND RECEIVER AND ELECTRONIC DEVICE USING THE SAME FILTER CIRCUIT 失效
标题翻译：滤波电路，使用相同滤波电路的接收器和电子设备
公开(公告)号：US20100260295A1
公开(公告)日：2010-10-14
申请号：US12159491
申请日：2007-11-08
申请人： Eiji Okada , Takeshi Fujii , Hiroaki Ozeki
发明人： Eiji Okada , Takeshi Fujii , Hiroaki Ozeki
IPC分类号： H04B1/10 , H03H11/04 , H04L27/00
CPC分类号： H04B1/1036 , H03H11/1252 , H03H11/1291 , H04W52/0238 , Y02D70/164 , Y02D70/40
摘要： Filter circuit includes Nth-order active filters switching circuit which switches shorting or non-shorting of active filter, and power-supply control circuit which controls such that a power supply of active filter is turned off when switching circuit shorts active filter. A receiver employing filter circuit turns off the power supply of active filter not needed when no interference wave exists within a given range from a desired frequency band. The foregoing structure allows lowering the power consumption of filter circuit.
摘要翻译：滤波电路包括有源滤波器的短路或不短路的N阶有源滤波器开关电路，以及开关电路短路有源滤波器时有源滤波器的电源被切断的电源控制电路。采用滤波电路的接收器在不期望频带的给定范围内不存在干扰波时，关闭不需要的有源滤波器的电源。上述结构允许降低滤波电路的功耗。

8. 发明申请

US20100214476A1 Assisting Apparatus, Assisting Program and Assisting Method 失效
标题翻译：协助设备，协助方案和协助方法
公开(公告)号：US20100214476A1
公开(公告)日：2010-08-26
申请号：US12709642
申请日：2010-02-22
申请人： Kohtaroh Miyamoto , Hiroaki Ozeki , Takashi Saitoh
发明人： Kohtaroh Miyamoto , Hiroaki Ozeki , Takashi Saitoh
IPC分类号： H04N7/00 , G10L15/26
CPC分类号： G10L13/00 , G10L15/26 , H04N21/440236 , H04N21/4884
摘要： Assisting apparatus that assists in a task for generating task-completed data from original data. The assisting apparatus includes: a conversion unit that converts the original data into converted data in order to keep a content of the original data secret from an operator in charge of the task; an interface unit that provides the converted data to the operator, and thereby allows the operator to perform the task by using the converted data and thus to generate a task-completed version of the converted data; and an inverse conversion unit that generates the task-completed data by performing inverse conversion of the task-completed version of the converted data.
摘要翻译：协助从原始数据生成任务完成数据的任务的设备。该辅助装置包括：转换单元，其将原始数据转换为转换数据，以便将主数据的内容从负责该任务的操作者保密; 接口单元，其将转换的数据提供给操作者，从而允许操作者通过使用转换的数据来执行任务，从而生成转换数据的任务完成版本; 以及逆转换单元，其通过执行所转换的数据的任务完成版本的逆转换来生成任务完成数据。

9. 发明授权

US07733986B2 Receiver and electronic apparatus 失效
标题翻译：接收机和电子设备
公开(公告)号：US07733986B2
公开(公告)日：2010-06-08
申请号：US11572942
申请日：2006-06-08
申请人： Takeshi Fujii , Hiroaki Ozeki
发明人： Takeshi Fujii , Hiroaki Ozeki
IPC分类号： H03D3/24
CPC分类号： H04B1/28 , H03J2200/02 , H03J2200/07 , H03L7/193 , H04L27/2657 , H04L2027/0028 , H04L2027/0055 , H04L2027/0065
摘要： A receiver has a receiving unit including a PLL, a mixer, and a filter, and demodulating unit including a frequency error detector for detecting a frequency error in a signal from a filter. The PLL includes a local oscillator for supplying a local oscillation signal to a mixer, a variable frequency divider for frequency-dividing the local oscillation signal based on a signal from the frequency error detector, and a phase comparator for comparing a signal from the variable frequency divider with a signal from a crystal oscillator. The PLL can reduce the frequency error of the local oscillation signal.
摘要翻译：接收机具有包括PLL，混频器和滤波器的接收单元，以及包括用于检测来自滤波器的信号中的频率误差的频率误差检测器的解调单元。 PLL包括用于向混频器提供本地振荡信号的本地振荡器，用于基于来自频率误差检测器的信号对本地振荡信号进行分频的可变分频器，以及用于比较来自可变频率的信号的相位比较器分频器与来自晶体振荡器的信号。 PLL可以降低本地振荡信号的频率误差。

10. 发明申请

US20100035570A1 RECEIVER AND RECEIVING SYSTEM USING THE SAME 审中-公开
标题翻译：使用该接收器和接收系统
公开(公告)号：US20100035570A1
公开(公告)日：2010-02-11
申请号：US12519006
申请日：2008-02-05
申请人： Yasunobu Tsukio , Hiroaki Ozeki
发明人： Yasunobu Tsukio , Hiroaki Ozeki
IPC分类号： H04B1/06
CPC分类号： H04B7/0817 , H04B7/0857 , H04B7/0877
摘要： If receiving circuit is in a high-sensitivity mode, receiving circuit is switched to a low-sensitivity mode when the BER according to BER measurement circuit becomes more favorable than a release threshold. If receiving circuit is in the low-sensitivity mode, receiving circuit is switched to the high-sensitivity mode when the BER according to BER measurement circuit becomes more adverse than a start-up threshold. If switching between the high-sensitivity and low-sensitivity modes occurs, control is exercised so that switching from the high-sensitivity mode to the low is resistant to occurring, thereby suppressing the occurrence of a reception error caused by switching between the receiving modes.
摘要翻译：如果接收电路处于高灵敏度模式，则当根据BER测量电路的BER变得比释放阈值更好时，接收电路被切换到低灵敏度模式。如果接收电路处于低灵敏度模式，则当根据BER测量电路的BER比启动阈值更不利时，接收电路切换到高灵敏度模式。如果发生高灵敏度和低灵敏度模式之间的切换，则进行控制，使得从高灵敏度模式切换到低阻抗发生，从而抑制由接收模式之间的切换引起的接收错误的发生。

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