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1. 发明授权

US06983027B2 OFDM transmit signal receiver 有权
公开(公告)号：US06983027B2
公开(公告)日：2006-01-03
申请号：US09987881
申请日：2001-11-16
申请人： Takashi Seki , Takeshi Koyama
发明人： Takashi Seki , Takeshi Koyama
IPC分类号： H03K9/00
CPC分类号： H04L27/2647 , H04L1/20
摘要： A demodulation circuit receives an OFDM transmit signal containing an information carrier, an additive-information transmission carrier, and a reception-synchronization pilot signal to convert these carriers and signal into frequency-axial data. The information carrier transmits information data. The additive-information transmission carrier and the reception-synchronization pilot signal have a lower multi-valued modulation degree than the information carrier. A differential detection circuit conducts detection processing by using a detection-subject symbol of a plurality of symbols indicated at a predetermined interval in the same frequency range and a symbol ahead that detection-subject symbol by a predetermined time in either one output of the additive-information transmission carrier and the reception-synchronization pilot signal output from the demodulation circuit. A first S/N ratio generating circuit generates an S/N ratio based on a detection output provided from the differential detection circuit. The S/N ratio indicates the reception quality of the OFDM transmit signal.

2. 发明授权

US06771719B1 Automatic gain control method and its system 失效
标题翻译：自动增益控制方法及其系统
公开(公告)号：US06771719B1
公开(公告)日：2004-08-03
申请号：US09510236
申请日：2000-02-22
申请人： Takeshi Koyama , Takashi Seki , Noboru Taga
发明人： Takeshi Koyama , Takashi Seki , Noboru Taga
IPC分类号： H04L2708
CPC分类号： H03G3/3068
摘要： The automatic gain control method with little being influenced of the unnecessary electric wave, even if strong unnecessary electric wave is near the frequency of input signal, is offered by carrying out change of the delay point level. The automatic gain control system with a scale of few circuit, having low noise property and high adjacent disturbance oppression property, is offered. When the IF AGC signal 112 is smaller than delay point level, the output agcerr of the signal level detector 614 is provided to the 1st loop filter 105. Since the IF AGC signal 112 provided to the IF AGC amplifier 608 is value responding to signal level of IF signal, output is fed back to this amplifier, and control of IF gain is performed automatically. On the other hand, when output of the 2nd loop filter 106 is “0”, output rfzero of the 2nd comparator 108 is set to 1, and “0” is provided to the 2nd loop filter 106. When the output of the 2nd loop filter 106 is not “0”, it is set to “0”, fixed value-rfdump is provided to the 2nd loop filter 106, and the output of the 2nd comparator 108 is converged when output of this loop filter became “0.” For this reason, the RFAGC signal 113 provided to the RF AGC amplifier 602 is set to “0”, and gain of the RF AGC amplifier 602 is fixed to maximum value.
摘要翻译：即使强制不必要的电波接近输入信号的频率，也不受不必要的电波影响的自动增益控制方式是通过延迟点电平的变化来提供的。自动增益控制系统的尺寸为提供具有低噪声特性和高相邻扰动压迫特性的电路，当IF AGC信号112小于延迟点电平时，信号电平检测器614的输出agcerr被提供给第一环路滤波器105.由于提供给IF AGC放大器608的IF AGC信号112是响应于IF信号的信号电平的值，输出被反馈到该放大器，并且自动执行IF增益的控制。另一方面，当输出第二环路滤波器 106是“0”时，第二比较器108的输出rfzero被设置为1，并且向第二环路滤波器106提供“0”。当第二环路滤波器106的输出不是“0”时，它被设置为 “0”，固定值-rfdump 被提供给第二环路滤波器106，并且当该环路滤波器的输出变为“0”时，第二比较器108的输出被会聚。因此，提供给RF AGC放大器602的RFAGC信号113被设置为“0 “，并且RF AGC放大器602的增益被固定为最大值。

3. 发明授权

US07998543B2 Dioxetane compound, cationically polymerizable composition, optical film, and liquid crystal display device 有权
标题翻译：二氧杂环丁烷化合物，阳离子聚合性组合物，光学膜和液晶显示装置
公开(公告)号：US07998543B2
公开(公告)日：2011-08-16
申请号：US12281008
申请日：2006-10-17
申请人： Takashi Seki , Takeshi Kataoka , Hitoshi Mazaki , Hirofumi Aizono
发明人： Takashi Seki , Takeshi Kataoka , Hitoshi Mazaki , Hirofumi Aizono
IPC分类号： C09K19/38 , C09K19/34 , C09K19/20 , C09K19/30 , C07D305/06 , C07D407/10 , C07D407/12 , C08G65/18
CPC分类号： C07D305/06 , C08F220/30 , C08G65/18 , G02F1/13363 , G02F2001/133633 , G02F2413/04 , G02F2413/06 , G02F2413/08 , Y10T428/10
摘要： A novel dioxetane compound is provided having a cationically polymerizable oxetane group, which compound is excellent in compatibility with a liquid crystalline compound and a non-liquid crystalline compound. An optical film is also provided with excellent liquid crystal orientation retention properties and mechanical strength, produced by aligning a composition of the dioxetane compound and a cationically polymerizable compound in a liquid crystal orientation and fixing the liquid crystal orientation by polymerization. Further, a liquid crystal display device is provided with the optical film.
摘要翻译：提供具有阳离子聚合性氧杂环丁烷基的新型二氧杂环丁烷化合物，该化合物与液晶化合物和非液晶化合物的相容性优异。光学膜还具有优异的液晶取向保持性和机械强度，其通过将液体取向中的二氧杂环丁烷化合物的组成和阳离子聚合性化合物取向并通过聚合固定液晶取向而制备。此外，液晶显示装置设置有光学膜。

4. 发明授权

US07763182B2 Liquid crystalline composition with improved adhesivity, liquid crystal film comprising the composition, and liquid crystal display device equipped with the film 有权
标题翻译：具有改善的粘合性的液晶组合物，包含该组合物的液晶膜和配备该膜的液晶显示装置
公开(公告)号：US07763182B2
公开(公告)日：2010-07-27
申请号：US12296801
申请日：2006-12-27
申请人： Takashi Seki , Hitoshi Mazaki , Takuya Matsumoto , Tomoo Hirai
发明人： Takashi Seki , Hitoshi Mazaki , Takuya Matsumoto , Tomoo Hirai
IPC分类号： C09K19/00 , C09K19/06 , C09K19/52
CPC分类号： G02B5/30 , B32B27/00 , C09K19/3852 , C09K2019/0448 , C09K2019/3095 , C09K2019/3416 , C09K2219/03 , G02B5/3016 , G02F2202/28 , Y10T428/10
摘要： The present invention provides a liquid crystal film with improved adhesivity to a tacky adhesive or an adhesive, formed from a liquid crystalline composition comprising a specific (meth)acrylic compound having an oxetane group and a liquid crystalline compound having an oxetane group.
摘要翻译：本发明提供了一种具有改进的粘合性或粘合剂粘合性的液晶膜，它是由含有氧杂环丁烷基的特定（甲基）丙烯酸化合物和具有氧杂环丁烷基的液晶化合物组成的液晶组合物形成的。

5. 发明申请

US20070116161A1 DIVERSITY RECEIVER AND METHOD 失效
标题翻译：多样性接收者和方法
公开(公告)号：US20070116161A1
公开(公告)日：2007-05-24
申请号：US11562657
申请日：2006-11-22
申请人： Kenichi Tokoro , Takashi Seki
发明人： Kenichi Tokoro , Takashi Seki
IPC分类号： H04L1/02
CPC分类号： H04L1/0057 , H04B7/0854 , H04L1/0052 , H04L1/06 , H04L27/2647
摘要： Respective demodulated outputs from a plurality of branches 11a to 11d are fed to corresponding error correction units 13a to 13d and error-corrected. The error correction units 13a to 13d feed error signals to error determination units 14a to 14d. The error determination units 14a to 14d determine the error-incidence situations of the respective branches 11a to 11d and then output the determination results to a coefficient generation unit 15. Based on the results of determination by the error determination units 14a to 14d, the coefficient generation unit 15 obtains the synthesis coefficients for the respective branch outputs. The synthesis coefficients correspond to the error-incidence situations of the respective branch outputs and are appropriate values including no errors. By synthesizing the respective branch outputs by use of the synthesis coefficients, error-free data can be reproduced.
摘要翻译：来自多个分支11a至11d的相应解调输出被馈送到相应的纠错单元13a至13d并进行纠错。误差校正单元13a至13d将误差信号馈送到错误确定单元14a至14d。错误确定单元14a至14d确定各个分支11a至11d的错误发生情况，然后将确定结果输出到系数生成单元15.基于错误确定单元14a的确定结果到14天，系数生成单元15获得各分支输出的合成系数。合成系数对应于各个分支输出的误差发生情况，并且是不包括错误的适当值。通过使用合成系数合成各个分支输出，可以再现无错误的数据。

6. 发明授权

US5795839A Catalyst components for polymerization of olefins 失效
标题翻译：用于烯烃聚合的催化剂组分
公开(公告)号：US5795839A
公开(公告)日：1998-08-18
申请号：US461604
申请日：1995-06-05
申请人： Naoki Kataoka , Yosuke Numao , Takashi Seki , Yoshio Tajima , Kazuo Matsuura
发明人： Naoki Kataoka , Yosuke Numao , Takashi Seki , Yoshio Tajima , Kazuo Matsuura
IPC分类号： C08F4/64 , C08F4/659 , C08F10/00 , C08F210/16
CPC分类号： C08F10/00 , C08F210/16 , C08F4/65904 , C08F4/65912 , C08F4/65916 , Y10S526/901 , Y10S526/943
摘要： A process for the polymerization of olefinic hydrocarbons is carried out in the presence of a catalyst comprising a catalyst component derived from reacting a compound of the formula Me.sup.1 R.sup.1.sub.n X.sup.1.sub.4-n, a compound of the formula Me.sup.2 R.sup.2.sub.m X.sup.2.sub.z-m, an organocyclic compound having two or more conjugated double bonds and a carrier of inorganic or polymeric material, and a modified organoaluminum compound having Al--O--Al bonds, the resulting polyolefins having a relatively wide molecular weight distribution, a relatively narrow composition distribution and increased bulk density.
摘要翻译：烯烃聚合方法是在催化剂存在下进行的，该催化剂包含催化剂组分，催化剂组分衍生自使式Me1R1nX14-n的化合物，式Me2R2mX2z-m的化合物，具有两个或更多个共轭双键和无机或聚合物材料的载体和具有Al-O-Al键的改性有机铝化合物，所得聚烯烃具有相对较宽的分子量分布，相对窄的组成分布和增加的体积密度。

7. 发明授权

US5771224A Orthogonal frequency division multiplexing transmission system and transmitter and receiver therefor 失效
标题翻译：正交频分复用传输系统及其发射机和接收机
公开(公告)号：US5771224A
公开(公告)日：1998-06-23
申请号：US619211
申请日：1996-03-21
申请人： Takashi Seki , Noboru Taga , Shigeru Okita , Tatsuya Ishikawa
发明人： Takashi Seki , Noboru Taga , Shigeru Okita , Tatsuya Ishikawa
IPC分类号： H04L27/18 , H04J11/00 , H04L5/02 , H04L27/26 , H04L27/34
CPC分类号： H04L27/2657 , H04L27/18 , H04L27/2613 , H04L27/2675 , H04L27/34 , H04L25/0232 , H04L25/03159 , H04L27/2662 , H04L5/0048
摘要： A transmission system is disclosed which permits the receiving end to demodulate multi-valued modulated symbols successfully under fading conditions and reduces the amount of transmitted reference data to improve data transmission efficiency. At the transmitting end, a multiplexing section, a modulating section, and a transmitting section are provided. In transmitting an OFDM transmission frame, null symbols and reference symbols are placed in the beginning portion of the frame and QPSK symbols are placed in an information symbol data region in the frame with equal spacings in time and frequency. At the receiving end, a receiving section, a demodulation section, an equalizing section, and a demultiplexing section are provided. An error detector detects amplitude and phase errors of each carrier from the reference symbols, and a variation detector detects variations in the amplitude and phase of a received signal from the QPSK symbols. The carrier amplitude and phase errors are corrected by a correction information producing section on the amplitude and phase variations of the received signal detected by the variation detector to produce correction information. The equalizing section equalizes the demodulated symbol data according to the correction information.
摘要翻译：公开了一种传输系统，其允许接收端在衰落条件下成功解调多值调制符号，并减少传输的参考数据量以提高数据传输效率。在发送端，提供复用部分，调制部分和发送部分。在发送OFDM传输帧时，将空符号和参考符号放置在帧的开始部分，并且将QPSK符号放置在帧中的时间和频率上等间隔的信息符号数据区域中。在接收端设置有接收部分，解调部分，均衡部分和解复用部分。误差检测器从参考符号检测每个载波的幅度和相位误差，并且变化检测器检测来自QPSK符号的接收信号的幅度和相位的变化。载波振幅和相位误差由校正信息产生部分对由变化检测器检测到的接收信号的幅度和相位变化进行校正，以产生校正信息。均衡部根据校正信息对解调符号数据进行均衡。

8. 发明授权

US5602835A OFDM synchronization demodulation circuit 失效
标题翻译： OFDM同步解调电路
公开(公告)号：US5602835A
公开(公告)日：1997-02-11
申请号：US341976
申请日：1994-11-16
申请人： Takashi Seki , Yasushi Sugita , Tatsuya Ishikawa
发明人： Takashi Seki , Yasushi Sugita , Tatsuya Ishikawa
IPC分类号： H04L27/38 , H04J11/00 , H04L7/00 , H04L27/22 , H04L27/26
CPC分类号： H04L27/2665 , H04L27/2657 , H04L27/2662
摘要： An OFDM synchronization demodulation circuit includes a recovery circuit, an orthogonal axis demodulation circuit, a first and second delay circuit, a correlation calculation circuit, a guard timing detection circuit, and an OFDM signal demodulation circuit. The receiving circuit receives an orthogonal modulated wave based on an orthogonal frequency division multiplex (OFDM) modulated signal having an available symbol period and a guard period, where the guard period of the orthogonal modulated wave is based on a part of the available symbol period. The orthogonal axes demodulation circuit demodulates an in-phase axis detection signal and an orthogonal axis detection signal for the OFDM modulated wave from the receiving circuit using orthogonal detection. The first delay circuit delays the in-phase axis detection signal by the available symbol period, and the second delay circuit delays the orthogonal axis detection signal by the available symbol period. The correlation calculation circuit calculates coefficients of the correlations of the in-phase axis detection signal and the orthogonal axis detection signal from the orthogonal demodulation circuit with the output of the first or the second delay circuits. The guard timing detection circuit detects a timing of the guard period in the demodulation outputs from the orthogonal demodulation circuit. The OFDM signal demodulation circuit demodulates the OFDM modulated signal by extracting the available symbol period signal only from the demodulated output of the orthogonal demodulation circuit using the timing signal.
摘要翻译： OFDM同步解调电路包括恢复电路，正交轴解调电路，第一和第二延迟电路，相关计算电路，保护定时检测电路和OFDM信号解调电路。接收电路基于具有可用符号周期和保护周期的正交频分复用（OFDM）调制信号接收正交调制波，其中正交调制波的保护周期基于可用符号周期的一部分。正交轴解调电路使用正交检测来解调来自接收电路的OFDM调制波的同相轴检测信号和正交轴检测信号。第一延迟电路将同相轴检测信号延迟可用符号周期，第二延迟电路将正交轴检测信号延迟可用符号周期。相关计算电路将来自正交解调电路的同相轴检测信号和正交轴检测信号的相关性的系数与第一或第二延迟电路的输出进行计算。保护定时检测电路检测来自正交解调电路的解调输出中的保护时段的定时。 OFDM信号解调电路通过使用定时信号仅从正交解调电路的解调输出提取可用符号周期信号来解调OFDM调制信号。

9. 发明授权

US5594082A Process for polymerization of olefinic hydrocarbon 失效
标题翻译：烯烃聚合方法
公开(公告)号：US5594082A
公开(公告)日：1997-01-14
申请号：US467337
申请日：1995-06-06
申请人： Yoshio Tajima , Naoki Kataoka , Yosuke Numao , Takashi Seki , Kazuo Matsuura
发明人： Yoshio Tajima , Naoki Kataoka , Yosuke Numao , Takashi Seki , Kazuo Matsuura
IPC分类号： C08F4/60 , C08F4/651 , C08F4/659 , C08F4/6592 , C08F10/00 , C08F110/02 , C08F110/06 , C08F210/02 , C08F210/06 , C08F210/08 , C08F210/16 , C08F4/64
CPC分类号： C08F10/00 , C08F110/02 , C08F110/06 , C08F210/02 , C08F210/06 , C08F210/08 , C08F210/16 , C08F4/65904 , C08F4/65912 , C08F4/6592 , Y10S526/903
摘要： A catalyst component is disclosed for use in the homo-or copolymerization of olefinic hydrocarbons. The catalyst component is comprised of a first compound of the formula Me.sup.1 (OR.sup.1).sub.p R.sup.2.sub.q X.sup.1.sub.4-p-q, a second compound of the formula Me.sup.2 (OR.sup.3).sub.m R.sup.4.sub.n X.sup.2.sub.z-m-n and a third compound which is an organocyclic compound having two or more conjugated double bonds. A process is also disclosed for the production of hydrocarbon polymers in which the above catalyst component is combined with a modified organoaluminum compound to form a catalyst composition capable of providing controlled molecular weight, wide distribution thereof and other desirable qualities in the polymer product.
摘要翻译：公开了用于烯烃均相或共聚的催化剂组分。催化剂组分由式Me1（OR1）pR2qX14-p-q的第一化合物，式Me2（OR3）mR4nX2z-m-n的第二化合物和具有两个或更多个共轭双键的有机环状化合物的第三化合物组成。还公开了一种用于生产烃聚合物的方法，其中上述催化剂组分与改性有机铝化合物组合以形成能够在聚合物产物中提供受控分子量，宽分布和其它所需质量的催化剂组合物。

10. 发明授权

US08333609B2 Connector, multi-channel audio system, electronic apparatus, and cable for connection 失效
标题翻译：连接器，多通道音频系统，电子设备和连接电缆
公开(公告)号：US08333609B2
公开(公告)日：2012-12-18
申请号：US09800056
申请日：2001-03-05
申请人： Yutaka Sato , Kim Hung Tae , Takashi Seki
发明人： Yutaka Sato , Kim Hung Tae , Takashi Seki
IPC分类号： H01R3/00
CPC分类号： H01R13/64 , H01R13/6456
摘要： A plurality of audio signal output terminals corresponding to individual channels of an audio-signal output apparatus are respectively disposed in correspondence with actual positions of a plurality of speakers disposed in correspondence with plural channels. Those audio signal output terminals provided for plural channels of the audio signal output apparatus are arranged to enable an user to discern individual audio signal output terminals by a color. Connecting cables are also provided with specific coloration corresponding to the colors provided for individual audio signal output terminals.
摘要翻译：对应于音频信号输出装置的各个声道的多个音频信号输出端分别与对应于多个声道设置的多个扬声器的实际位置相对应地布置。设置用于音频信号输出装置的多个声道的那些音频信号输出端子被布置成使用户能够通过颜色辨别各个音频信号输出端子。连接电缆还具有与为各个音频信号输出端子提供的颜色相对应的特定着色。

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