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1. 发明专利

JP2014190813A Clock signal generating circuit, demodulating circuit using the same, and radio-wave corrected timepiece 有权
标题翻译：时钟信号发生电路，使用其的解调电路和无线电波校正时序
公开(公告)号：JP2014190813A
公开(公告)日：2014-10-06
申请号：JP2013066184
申请日：2013-03-27
申请人： Citizen Holdings Co Ltd , シチズンホールディングス株式会社 , Citizen Watch Co Ltd , シチズン時計株式会社
发明人： FURUKI TAKUO
IPC分类号： G04R20/10 , G04G5/00 , G04R20/00 , H03D1/04 , H03H11/12 , H04B1/10 , H04L7/027
摘要： PROBLEM TO BE SOLVED: To provide a clock generating circuit for a sample-hold circuit, the clock generating circuit having a simple configuration and capable of reducing influence of noise.SOLUTION: A clock signal generating circuit for generating a clock signal of an intended frequency component from an input signal includes: a first filter having a peak of a gain in a frequency lower than an intended frequency; a second filter having a peak of the gain in a frequency higher than the intended frequency; first and second quantizing circuits connected to outputs of the first filter and the second filter respectively; and a synthesis circuit that is connected to the outputs of the first quantizing circuit and the second quantizing circuit, reverses the output of one quantizing circuit and synthesizes the output of the another quantizing circuit. This configuration can generate a sample-hold signal capable of inhibiting generation of a clock signal in an unnecessary frequency region so as to suppress superimposition on an envelope detection by an interfering frequency signal.
摘要翻译：要解决的问题：为了提供采样保持电路的时钟发生电路，时钟发生电路具有简单的配置并且能够减少噪声的影响。解决方案：一种用于产生预期频率的时钟信号的时钟信号发生电路来自输入信号的分量包括：具有低于预期频率的频率的增益的峰值的第一滤波器; 具有高于预期频率的频率的增益峰值的第二滤波器; 第一和第二量化电路分别连接到第一滤波器和第二滤波器的输出端; 以及连接到第一量化电路和第二量化电路的输出的合成电路，反转一个量化电路的输出并合成另一个量化电路的输出。该配置可以产生能够抑制在不必要的频率区域中产生时钟信号的采样保持信号，以便抑制由干扰频率信号对包络检测的叠加。

2. 发明专利

JP4958021B2 Co-channel interference receiver 有权
公开(公告)号：JP4958021B2
公开(公告)日：2012-06-20
申请号：JP2009290622
申请日：2009-12-22
申请人：コリジョン・テクノロジー・エルエルシーCollision Technology, LLC
发明人：カール・ディー・ブロマー , ジョシュア・ディー．・ニードズウィッキー , トーマス・ピー・マッセルワイン , マシュー・エー・タイラー , レイチェル・イー・ラーンド , ロバート・ビー・マクレオド
IPC分类号： H04J99/00 , H03D1/04 , H04B1/707 , H04B7/005 , H04B7/08 , H04B7/10 , H04B7/26
CPC分类号： H04B1/71055 , H04B7/10 , H04L25/0204 , H04L25/0228 , H04L25/0246 , H04L25/0248 , H04L25/03197 , H04L25/03216 , H04L25/03222 , H04L25/03286 , H04L25/03305 , H04L25/03318 , H04L25/03331 , H04L2025/03426
摘要： A digital receiver (10) automatically detects and non-coherently demodulates a multiplicity of interfering digitally modulated signals transmitted simultaneously at approximately the same carrier frequency. The receiver (10) includes one or more antenna inputs (e.g., polarization and/or space diverse) (13), a parameter estimator module (20), and a multiuser detector (18) for estimating the data transmitted by each interfering signals and adapted to operate with at least one of a MUD algorithm with partially quantized prior information and a MUD algorithm based on prewhitened data.

4. 发明专利

JP2010093852A Co-channel interference receiver 有权
标题翻译： CO通道干扰接收器
公开(公告)号：JP2010093852A
公开(公告)日：2010-04-22
申请号：JP2009290622
申请日：2009-12-22
申请人： Bae Systems Information & Electronic Systems Integration Inc , ビーエイイー・システムズ・インフォメーション・アンド・エレクトロニック・システムズ・インテグレイション・インコーポレーテッド
发明人： TAYLOR MATTHEW A , MACLEOD ROBERT B , LEARNED RACHEL E , NIEDZWIECKI JOSHUA D , BROMMER KARL D , MCELWAIN THOMAS P
IPC分类号： H04J99/00 , H03D1/04 , H04B1/707 , H04B7/005 , H04B7/04 , H04B7/08 , H04B7/10 , H04B7/26 , H04J11/00
CPC分类号： H04B1/71055 , H04B7/10 , H04L25/0204 , H04L25/0228 , H04L25/0246 , H04L25/0248 , H04L25/03197 , H04L25/03216 , H04L25/03222 , H04L25/03286 , H04L25/03305 , H04L25/03318 , H04L25/03331 , H04L2025/03426
摘要： PROBLEM TO BE SOLVED: To provide a co-channel interference receiver which enables a plurality of users to operate with the same communication channel. SOLUTION: A digital receiver (10) simultaneously and automatically detects and non-coherently demodulates a multiplicity of interfering digitally modulated signals transmitted simultaneously at approximately the same carrier frequency. The receiver (10) includes one or more antenna inputs (e.g., polarization and/or space diversity) (13), a parameter estimator module (20), and a multiuser detector (18) for estimating the data transmitted by each interfering signal and adapted to operate with at least one of an MUD algorithm with partially quantized prior information and an MUD algorithm based on pre-whitened data. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种同信道干扰接收机，其能够使多个用户以相同的通信信道进行操作。解决方案：数字接收机（10）同时并且自动地检测并且非相干地解调在大致相同的载波频率同时传输的多个干扰数字调制信号。接收器（10）包括一个或多个天线输入（例如，极化和/或空间分集）（13），参数估计器模块（20）和用于估计由每个干扰信号发送的数据的多用户检测器（18）适于使用具有部分量化的先验信息的MUD算法和基于预白化数据的MUD算法中的至少一个进行操作。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2005286788A Noise eliminating circuit 审中-公开
标题翻译：噪声消除电路
公开(公告)号：JP2005286788A
公开(公告)日：2005-10-13
申请号：JP2004099359
申请日：2004-03-30
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： SAITO KOJI , HIRAKOSO YUTAKA , TAIRA MASAAKI
IPC分类号： H03D1/04 , H04B1/10
摘要： PROBLEM TO BE SOLVED: To provide a noise eliminating circuit in which a sense of discontinuity due to the size of an output level or the difference in frequency characteristics does not occur at the time of switching from DSB reception to SSB reception.
SOLUTION: If a detector does not detect reception interference; an extractor extracts a carrier wave, a first intermediate frequency signal, and a second intermediate frequency signal, and a switch outputs an output of the detecting section. If the detector detects reception interference; the extractor extracts any one of a combination of the carrier wave and the first intermediate frequency signal, and a combination of the carrier wave and the second intermediate frequency signal, and the switch outputs an output of a sound quality corrector.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种噪声消除电路，其中在从DSB接收切换到SSB接收时不会发生由于输出电平的大小或频率特性的差异引起的不连续感。
解决方案：如果检测器没有检测到接收干扰; 提取器提取载波，第一中频信号和第二中频信号，并且开关输出检测部分的输出。如果检测器检测到接收干扰; 提取器提取载波和第一中频信号的组合中的任一个以及载波和第二中频信号的组合，并且开关输出声音质量校正器的输出。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005045809A Circuit and method for canceling impulse noise in multicarrier modulated signal receiving system 有权
标题翻译：多功能调制信号接收系统中消除噪声噪声的电路及方法
公开(公告)号：JP2005045809A
公开(公告)日：2005-02-17
申请号：JP2004214934
申请日：2004-07-22
申请人： Samsung Electronics Co Ltd , 三星電子株式会社
发明人： ZHIDKOV SERGEY
IPC分类号： H04J11/00 , H03D1/04 , H04B1/10 , H04B7/005 , H04L27/26 , H04L27/28
CPC分类号： H04L27/2647
摘要： PROBLEM TO BE SOLVED: To provide a circuit and method for canceling impulse noise in a multicarrier modulated signal. SOLUTION: The method for reducing the noise in an equalized multicarrier modulated signal comprises the steps of estimating impulse noise in the equalized signal and removing a portion of the noise in the equalized signal as a function of the estimated impulse noise. The present invention has an excellent performance in comparison with prior art. For example, the embodiment of the present invention has a more enhanced symbol error rate of about 5 dB than the prior art. Further, such an enhancement may be in direct proportion to or in inverse proportion to the ratio of signals in the entire noise. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于消除多载波调制信号中的脉冲噪声的电路和方法。解决方案：用于降低均衡的多载波调制信号中的噪声的方法包括以下步骤：根据估计的脉冲噪声来估计均衡信号中的脉冲噪声和去除均衡信号中的噪声的一部分。与现有技术相比，本发明具有优异的性能。例如，本发明的实施例比现有技术具有大约5dB的更加增强的符号错误率。此外，这种增强可以与整个噪声中的信号的比率成正比或成反比。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP3335414B2 失效
公开(公告)号：JP3335414B2
公开(公告)日：2002-10-15
申请号：JP6404893
申请日：1993-03-23
IPC分类号： H03D1/00 , H03D1/04 , H03D1/22 , H04B1/10 , H04B1/26

8. 发明专利

JP3311943B2 失效
公开(公告)号：JP3311943B2
公开(公告)日：2002-08-05
申请号：JP29592296
申请日：1996-10-18
IPC分类号： H04J13/00 , H03D1/04 , H04B1/10 , H04B1/68 , H04B1/7107 , H04B7/08 , H04W76/02 , H04W88/02 , H04J13/04

9. 发明专利

JP3230702B2 失效
公开(公告)号：JP3230702B2
公开(公告)日：2001-11-19
申请号：JP36061392
申请日：1992-12-31
IPC分类号： H03D1/04 , G06G7/163 , H03D1/18 , H03D7/14

10. 发明专利

JP2000307445A BASE BAND ANALOG CIRCUIT 失效
公开(公告)号：JP2000307445A
公开(公告)日：2000-11-02
申请号：JP11491099
申请日：1999-04-22
申请人： ALPS ELECTRIC CO LTD
发明人： TSUDA SHUICHI
IPC分类号： H03H7/38 , H03D1/04 , H04B1/10 , H04B1/28
摘要： PROBLEM TO BE SOLVED: To improve noise characteristics of a low-pass filter. SOLUTION: This circuit is has a demodulator 2 which outputs a base-band analog signal by demodulating a received signal and the low-pass filter 4 which passes the demodulated base-band analog signal and is provided with an impedance converting means 3 having output impedance lower than the output impedance of the demodulator 2 between the demodulator 2 and low-pass filter 4.

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