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1. 发明授权

US06996388B2 High-frequency signal receiver 失效
标题翻译：高频信号接收机
公开(公告)号：US06996388B2
公开(公告)日：2006-02-07
申请号：US10109742
申请日：2002-03-28
申请人： Hiroaki Ozeki , Hitonobu Furukawa , Masanori Suzuki , Sanae Asayama , Masashi Yasuda
发明人： Hiroaki Ozeki , Hitonobu Furukawa , Masanori Suzuki , Sanae Asayama , Masashi Yasuda
IPC分类号： H04B1/26
CPC分类号： H04B1/28
摘要： A receiver is operable even if including a local oscillator generating a signal at high frequencies but not in a wide frequency range. The receiver includes: a first frequency converter for mixing a received signal with a first local oscillation signal to convert the received signal into respective signals of plural first intermediate frequencies corresponding to a frequency of the received signal; and a second frequency converter for converting the signals of the first intermediate frequencies into a signal of a second intermediate frequency.
摘要翻译：即使包括本地振荡器在高频而不是在宽的频率范围内产生信号，接收机也是可操作的。接收机包括：第一频率转换器，用于将接收信号与第一本地振荡信号混频，以将接收的信号转换成对应于接收信号的频率的多个第一中频的相应信号; 以及第二频率转换器，用于将第一中频的信号转换为第二中频信号。

2. 发明授权

US06363126B1 Demodulator 失效
标题翻译：解调器
公开(公告)号：US06363126B1
公开(公告)日：2002-03-26
申请号：US09209734
申请日：1998-12-11
申请人： Hitonobu Furukawa , Masami Takigawa , Akira Mishima , Hiroaki Ozeki , Sachiko Hayashi
发明人： Hitonobu Furukawa , Masami Takigawa , Akira Mishima , Hiroaki Ozeki , Sachiko Hayashi
IPC分类号： H04L2706
CPC分类号： H04L27/066 , H04L27/2273 , H04L2027/0016 , H04L2027/0028 , H04L2027/0057 , H04L2027/0065
摘要： The invention presents an apparatus capable of demodulating stably if there are time-course changes in the constituent parts in a demodulator of digital modulated signal. This demodulator comprises an operator for setting the oscillation frequency of a local oscillator 2, and within a passing frequency band of a band pass filter BPF 3, the operator controls the local oscillator 2 so that the frequency of the output signal of a first mixer 1 may settle within a control band in a controllable frequency band of an AFC feedback loop composed of an orthogonal detector 4, a carrier regenerator 9, a frequency error detector 10, a frequency controller 11, a signal selector 12, a D/A converter 13, and a VCO 14, and a local carrier is issued from the local oscillator 2 to the first mixer 1.
摘要翻译：本发明提供了一种如果在数字调制信号的解调器中的组成部分存在时间间隔变化的情况下能够稳定地进行解调的装置。该解调器包括用于设置本地振荡器2的振荡频率的操作者，并且在带通滤波器BPF 3的通过频带内，操作者控制本地振荡器2，使得第一混频器1的输出信号的频率可以在由正交检测器4，载波再生器9，频率误差检测器10，频率控制器11，信号选择器12，D / A转换器13组成的AFC反馈回路的可控频带内的控制频带内和VCO14，并且本地载波从本地振荡器2发出到第一混频器1。

3. 发明授权

US06389082B1 Receiver 有权
标题翻译：接收器
公开(公告)号：US06389082B1
公开(公告)日：2002-05-14
申请号：US09612040
申请日：2000-07-07
申请人： Masami Takigawa , Hitonobu Furukawa , Akira Mishima , Hiroaki Ozeki
发明人： Masami Takigawa , Hitonobu Furukawa , Akira Mishima , Hiroaki Ozeki
IPC分类号： H04L2706
CPC分类号： H04L27/2273 , H04L2027/0071
摘要： In a receiver supporting multiple data rates, a sweep control range is calculated on the basis of the data rate of the carrier of the channel to be selected and sweep control is executed on the oscillated frequency by VCO 8 within the sweeping frequency range so that synchronization locking to the carrier is attained and thereby an erroneous channel selection is prevented.
摘要翻译：在支持多个数据速率的接收机中，基于要选择的信道的载波的数据速率来计算扫描控制范围，并且通过VCO 8在扫频范围内对振荡频率进行扫描控制，使得同步锁定到载体，从而防止错误的通道选择。

4. 发明授权

US06882693B2 Digital signal receiver 失效
标题翻译：数字信号接收机
公开(公告)号：US06882693B2
公开(公告)日：2005-04-19
申请号：US09735630
申请日：2000-12-14
申请人： Hiroaki Ozeki , Masami Takigawa , Hitonobu Furukawa , Junichi Fukutani , Kazuyori Domoto
发明人： Hiroaki Ozeki , Masami Takigawa , Hitonobu Furukawa , Junichi Fukutani , Kazuyori Domoto
IPC分类号： H03H17/06 , H04B1/10 , H04B1/16 , H04B1/26 , H04B7/005 , H04L27/38 , H04N5/44 , H04L27/08 , H03D1/04
CPC分类号： H04L27/3809
摘要： A digital signal receiver capable of obtaining a favorable receiving performance even if the input signal level changes rapidly is presented. A control voltage for controlling a variable gain amplifier is read by a microprocessor, and an operation-starting point of the variable gain amplifier is shifted by using this control voltage. As a result, a favorable level fluctuation response characteristic is obtained regardless of the input level.
摘要翻译：即使输入信号电平急剧变化，也能够得到良好的接收性能的数字信号接收机。用于控制可变增益放大器的控制电压由微处理器读取，并且通过使用该控制电压来移动可变增益放大器的操作起始点。结果，无论输入电平如何，都获得良好的电平波动响应特性。

5. 发明授权

US06744830B1 Digital broadcasting signal receiver 失效
标题翻译：数字广播信号接收机
公开(公告)号：US06744830B1
公开(公告)日：2004-06-01
申请号：US09670692
申请日：2000-09-28
申请人： Hitonobu Furukawa , Hiroaki Ozeki , Masami Takigawa , Junichi Fukutani , Yuichi Watanabe , Kazuyori Domoto
发明人： Hitonobu Furukawa , Hiroaki Ozeki , Masami Takigawa , Junichi Fukutani , Yuichi Watanabe , Kazuyori Domoto
IPC分类号： H04L2708
CPC分类号： H04N5/4401 , H03G3/3089 , H04H40/18 , H04L7/04 , H04N5/50 , H04N21/4384
摘要： A receiver for a digital broadcasting service have a compatibility between tuning to a desired channel at a short period of time and an improve ment of a bit error rate (BER) characteristics. In a case where a target wave is fluctuated, to prevent the receiver from having a significant declination of BER characteristics and to ensure the reproduction of high quality images, the receiver includes an automatic gain controller including a loop filter in which the frequency range of the loop filter can be switched according to an output of a synchronous state discriminator. The frequency band of the loop filter is selectively adjusted to one setting designed for minimizing the duration for tuning a desired channel before a synchronous state is established. After the synchronous state established, the frequency band of the loop filter is switched to another setting designed for enhancing BER characteristics.
摘要翻译：用于数字广播服务的接收机具有在短时间段内调谐到期望信道和提高误码率（BER）特性之间的兼容性。在目标波波动的情况下，为了防止接收机具有BER特性的显着偏差并且确保高质量图像的再现，接收机包括自动增益控制器，该自动增益控制器包括环路滤波器，其中频率范围可以根据同步状态鉴别器的输出来切换环路滤波器。环路滤波器的频带被选择性地调整为设计用于在建立同步状态之前最小化用于调谐期望信道的持续时间的一个设置。在建立同步状态之后，环路滤波器的频带被切换到另一个设计用于提高BER特性的设置。

6. 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。

7. 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。

8. 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。

9. 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。

10. 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。

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