公开(公告)号：US20100202568A1

公开(公告)日：2010-08-12

申请号：US12633403

申请日：2009-12-08

申请人： Kenichi Tokoro ,  Takashi Seki

发明人： Kenichi Tokoro ,  Takashi Seki

IPC分类号： H04L27/06

CPC分类号： H04N21/8547 ,  H04N21/4305 ,  H04N21/4382

摘要： Provided is a receiver including a receiving unit, a demodulator-decoder unit, a synchronization detecting unit, and an output control unit. The receiving unit receives digital broadcasting. The demodulator-decoder unit obtains an output including a transport stream through a demodulating processing and a decoding processing performed on a reception signal received by the receiving unit. The synchronization detecting unit secures synchronization on the basis of the reception signal received by the receiving unit, and generates a timing signal to be used in the demodulating processing and in the decoding processing. The output control unit outputs the output including the transport stream from the demodulator-decoder unit if the synchronization is secured. The output control unit fixes a logic level of the output including the transport stream if the synchronization is not secured.

摘要翻译： 提供了一种接收机，包括接收单元，解调器 - 解码器单元，同步检测单元和输出控制单元。 接收单元接收数字广播。 解调器 - 解码器单元通过对由接收单元接收的接收信号执行的解调处理和解码处理来获得包括传输流的输出。 同步检测单元根据由接收单元接收到的接收信号来确保同步，并产生将在解调处理和解码处理中使用的定时信号。 如果同步被确保，则输出控制单元输出包括来自解调器 - 解码器单元的传输流的输出。 如果不保证同步，则输出控制单元固定包括传输流的输出的逻辑电平。

公开(公告)号：US20090230233A1

公开(公告)日：2009-09-17

申请号：US12306250

申请日：2007-06-14

申请人： Takato Ochi ,  Takashi Seki

发明人： Takato Ochi ,  Takashi Seki

IPC分类号： B65H75/14

CPC分类号： B65H75/14 ,  B65H2701/377

摘要： A reel including a columnar wind-up unit 3 and a pair of opposing side plates 2 and 2 provided such that the wind-up unit is between the side plates, wherein the inner surface of at least one side plate 2 is provided with a projection 21.

摘要翻译： 一种卷轴，包括柱形卷绕单元3和一对相对的侧板2和2，其设置成使得卷绕单元位于侧板之间，其中至少一个侧板2的内表面设置有突起 21。

公开(公告)号：US07416765B2

公开(公告)日：2008-08-26

申请号：US11688548

申请日：2007-03-20

申请人： Takashi Seki ,  Tooru Nakamura ,  Hitoshi Mazaki

发明人： Takashi Seki ,  Tooru Nakamura ,  Hitoshi Mazaki

IPC分类号： C09K19/38 ,  C09K19/30 ,  C09K19/32 ,  C09K19/34 ,  C09K19/12 ,  C09K19/20 ,  C09K19/36

CPC分类号： C09K19/2007 ,  C08F220/30 ,  C08F220/36 ,  C08K5/375 ,  C08L33/14 ,  C09K19/322 ,  C09K19/3857 ,  C09K19/3861 ,  C09K2019/0448 ,  C09K2019/3408 ,  C09K2019/3416 ,  G02B5/3016 ,  Y10T428/10 ,  Y10T428/1036 ,  Y10T428/105 ,  C08L2666/02

摘要： A polymerizable liquid crystalline composition comprises a side chain liquid crystalline polymer obtained by radical-copolymerizing a (meth)acrylic compound has an optically active site and a (meth)acrylic compound having an oxetanyl group, and a cation generator and thus have no functional group the synthesis of which is difficult, such as an epoxy group. The use of the polymerizable liquid crystalline composition provides a cholesteric liquid crystal film which is excellent in a capability of retaining the orientation after being aligned and fixed in a liquid crystal orientation and in mechanical strength without the necessity of a complicated operation such as photo irradiation under an inert gas atmosphere.

摘要翻译： 可聚合液晶组合物包含通过使具有光学活性位点的（甲基）丙烯酸化合物和具有氧杂环丁烷基的（甲基）丙烯酸化合物）和阳离子发生剂自由基共聚获得的侧链液晶聚合物，因此不具有官能团 其合成困难，例如环氧基。 使用可聚合液晶组合物提供了在液晶取向和机械强度取向和固定之后保持取向性能优异的胆甾醇型液晶膜，而不需要如光照射等复杂的操作 惰性气体气氛。

公开(公告)号：US07125590B2

公开(公告)日：2006-10-24

申请号：US10825557

申请日：2004-04-14

申请人： Takuya Matsumoto ,  Hitoshi Mazaki ,  Toru Nakamura ,  Takashi Seki

发明人： Takuya Matsumoto ,  Hitoshi Mazaki ,  Toru Nakamura ,  Takashi Seki

IPC分类号： C09K19/38 ,  C09K19/34 ,  C09K19/20 ,  G02F1/13363

CPC分类号： C09K19/3852 ,  C09K2019/3416 ,  Y10T428/10 ,  Y10T428/1036

摘要： Liquid crystal films with excellent heat resistance and mechanical strength are provided.A liquid crystal film is obtained by fixing an aligned liquid crystal material containing at least a side chain-type polymeric liquid crystalline substance obtained by homopolymerizing the (meth)acrylic portion of a (meth)acrylic compound having an oxetanyl group represented by formula (1) below or copolymerizing the same with another (meth)acrylic compound and a difunctional low molecular weight liquid crystalline substance having two oxetanyl groups represented by formula (2):

摘要翻译： 提供了具有优异的耐热性和机械强度的液晶膜。 通过将通过使由式（1）表示的具有氧杂环丁烷基的（甲基）丙烯酸类化合物的（甲基）丙烯酸系部分）的（甲基）丙烯酸部分均聚而得到的至少一种侧链型聚合物液晶物质的取向液晶材料 ）或与另一（甲基）丙烯酸化合物和具有由式（2）表示的两个氧杂环丁烷基的双官能低分子量液晶物质共聚合：

公开(公告)号：US20060167196A1

公开(公告)日：2006-07-27

申请号：US10525929

申请日：2003-10-24

申请人： Takashi Seki ,  Hiroyuki Shimizu ,  Tamotsu Takahashi ,  Kiyohiko Nakajima ,  Tetsuro Fukuda

发明人： Takashi Seki ,  Hiroyuki Shimizu ,  Tamotsu Takahashi ,  Kiyohiko Nakajima ,  Tetsuro Fukuda

IPC分类号： C08F4/44 ,  C07F17/00

CPC分类号： C08F10/00 ,  C07F17/00 ,  Y10S526/941 ,  Y10S526/943 ,  C08F4/65925 ,  C08F4/65922

摘要： A novel transition metal compound wherein the transition metal belongs to group 4 of the periodic table and the transition metal compound has a hydrogen atom ligand and three cyclopentadienyl ligands comprising at least one substituted cyclopentadienyl ligand. The novel transition metal compound can be used as a component of a catalyst exhibiting high activity for olefin polymerization and is characteristic in containing no halogen element.

摘要翻译： 一种新型的过渡金属化合物，其中过渡金属属于元素周期表第4族，过渡金属化合物具有氢原子配体和三个环戊二烯基配位体，其包含至少一个取代的环戊二烯基配体。 该新颖的过渡金属化合物可用作对烯烃聚合具有高活性的催化剂组分，并且是不含卤素元素的特征。

公开(公告)号：US07070711B2

公开(公告)日：2006-07-04

申请号：US10965180

申请日：2004-10-14

申请人： Takashi Seki ,  Takuya Matsumoto ,  Toru Nakamura ,  Hitoshi Mazaki

发明人： Takashi Seki ,  Takuya Matsumoto ,  Toru Nakamura ,  Hitoshi Mazaki

IPC分类号： C09K19/38 ,  C09K19/34 ,  C09K19/20 ,  C09K19/12 ,  C09K19/52

CPC分类号： C09K19/3852 ,  C09K2019/323 ,  C09K2019/3408 ,  C09K2019/3416 ,  Y10T428/10 ,  Y10T428/1036

摘要： Liquid crystalline compositions contain no functional group the synthesis of which is difficult, such as (meth)acrylate and epoxy group and comprise (A) an oxetane compound having an optically active portion, (B) a side chain liquid crystalline polymeric substance having an oxetanyl group, and (C) a photo cation generator and/or a thermal cation generator. The use of the composition can provide a cholesteric-aligned liquid crystal film with excellent alignment retention properties after being fixed in the liquid crystal state and mechanical strength, without employing any complicated step such as photo irradiation under an inert gas atmosphere.

摘要翻译： 液晶组合物不包含难以合成的官能团，例如（甲基）丙烯酸酯和环氧基团，并且包含（A）具有光学活性部分的氧杂环丁烷化合物，（B）具有氧杂环丁烷基的侧链液晶聚合物质 组和（C）光阳离子发生器和/或热阳离子发生器。 组合物的使用可以在液晶状态和机械强度固定之后提供具有优异的取向保持性的胆甾醇型取向液晶膜，而不需要在惰性气体气氛下进行光照射等复杂的步骤。

公开(公告)号：US20050082513A1

公开(公告)日：2005-04-21

申请号：US10965180

申请日：2004-10-14

申请人： Takashi Seki ,  Takuya Matsumoto ,  Toru Nakamura ,  Hitoshi Mazaki

发明人： Takashi Seki ,  Takuya Matsumoto ,  Toru Nakamura ,  Hitoshi Mazaki

IPC分类号： C09K19/14 ,  C09K19/34 ,  C09K19/38 ,  C09K19/32 ,  C09K19/52

CPC分类号： C09K19/3852 ,  C09K2019/323 ,  C09K2019/3408 ,  C09K2019/3416 ,  Y10T428/10 ,  Y10T428/1036

摘要： Liquid crystalline compositions contain no functional group the synthesis of which is difficult, such as (meth)acrylate and epoxy group and comprise (A) an oxetane compound having an optically active portion, (B) a side chain liquid crystalline polymeric substance having an oxetanyl group, and (C) a photo cation generator and/or a thermal cation generator. The use of the composition can provide a cholesteric-aligned liquid crystal film with excellent alignment retention properties after being fixed in the liquid crystal state and mechanical strength, without employing any complicated step such as photo irradiation under an inert gas atmosphere.

摘要翻译： 液晶组合物不包含难以合成的官能团，例如（甲基）丙烯酸酯和环氧基团，并且包含（A）具有光学活性部分的氧杂环丁烷化合物，（B）具有氧杂环丁烷基的侧链液晶聚合物质 组和（C）光阳离子发生器和/或热阳离子发生器。 组合物的使用可以在液晶状态和机械强度固定之后提供具有优异的取向保持性的胆甾醇型取向液晶膜，而不需要在惰性气体气氛下进行光照射等复杂的步骤。

公开(公告)号：US6081563A

公开(公告)日：2000-06-27

申请号：US19368

申请日：1998-02-05

申请人： Noboru Taga ,  Takashi Seki

发明人： Noboru Taga ,  Takashi Seki

IPC分类号： H04L27/227 ,  H03J7/02 ,  H04L27/00 ,  H04L27/233 ,  H04L27/06

CPC分类号： H04L27/2332 ,  H04L2027/003 ,  H04L2027/0057

摘要： A phase detection circuit detects a phase of a phase detection signal output from a complex multiplication circuit. A frequency error detection circuit detects a frequency error of a phase-detected signal, with the first frequency error detection characteristic in which a first frequency domain is defined as a detection range. An average circuit converts a signal having the detected frequency error into a signal having a second frequency error detection characteristic in which a second frequency domain other than the first frequency domain is defined as a detection range. After the average circuit calculates an average of frequency error signals for each period of time, it converts an average signal into a signal having the original first frequency error detection characteristic and outputs it to an AFC loop filter.

摘要翻译： 相位检测电路检测从复数乘法电路输出的相位检测信号的相位。 频率误差检测电路利用将第一频域定义为检测范围的第一频率误差检测特性来检测相位检测信号的频率误差。 平均电路将具有检测到的频率误差的信号转换为具有第二频率误差检测特性的信号，其中除了第一频域之外的第二频域被定义为检测范围。 在平均电路计算每个时间段的频率误差信号的平均值之后，将平均信号转换成具有原始第一频率误差检测特性的信号，并将其输出到AFC环路滤波器。

公开(公告)号：US5608764A

公开(公告)日：1997-03-04

申请号：US339697

申请日：1994-11-14

申请人： Yasushi Sugita ,  Tatsuya Ishikawa ,  Takashi Seki

发明人： Yasushi Sugita ,  Tatsuya Ishikawa ,  Takashi Seki

IPC分类号： H04L27/38 ,  H04J11/00 ,  H04L7/00 ,  H04L27/26 ,  H04L27/32 ,  H04L7/02

CPC分类号： H04L27/2657 ,  H04L27/2679

摘要： An OFDM synchronization demodulation circuit includes a receiving circuit for receiving an orthogonal frequency division multiplexing (OFDM) modulation signal. An orthogonal detection circuit orthogonally detects the OFDM modulation signal from the receiving circuit using a detected carrier. A demodulation circuit orthogonally demodulates the detected OFDM multiplex modulation signal from the orthogonal detection circuit by sampling the OFDM multiplex detection signal using a detected clock. A constellation analyzing circuit analyzes the constellation of demodulated symbols of predetermined carriers in the demodulated OFDM multiplex signal signal. A carrier frequency deviation detection circuit detects a frequency deviation of the detected carrier based on a rotation of the constellation of the demodulated symbol detected by the constellation analyzing circuit. A carrier detection circuit responsive to the frequency deviation detected by the carrier frequency deviation detection circuit controls the detected carrier. A clock frequency deviation detection circuit detects a frequency deviation of the detected clock based on rotations of the constellations of at least two demodulated symbols detected by the constellation analyzing circuit. A clock detection circuit controls the detected clock based on the frequency deviation detected by the clock frequency deviation detection circuit.

摘要翻译： OFDM同步解调电路包括用于接收正交频分复用（OFDM）调制信号的接收电路。 正交检测电路使用检测到的载波正交地检测来自接收电路的OFDM调制信号。 解调电路通过使用检测到的时钟对OFDM多路复用检测信号进行采样来正交地解调来自正交检测电路的检测的OFDM多路复用调制信号。 星座分析电路分析解调的OFDM多路复用信号信号中预定载波的解调符号的星座。 载波频率偏差检测电路基于由星座分析电路检测到的解调符号的星座的旋转来检测检测到的载波的频率偏差。 响应于由载波频率偏差检测电路检测到的频率偏差的载波检测电路控制检测到的载波。 时钟频率偏差检测电路根据由星座分析电路检测到的至少两个解调符号的星座的旋转来检测检测到的时钟的频率偏差。 时钟检测电路基于由时钟频率偏差检测电路检测到的频率偏差来控制检测到的时钟。

公开(公告)号：US08284850B2

公开(公告)日：2012-10-09

申请号：US12701803

申请日：2010-02-08

申请人： Noboru Taga ,  Takashi Seki

发明人： Noboru Taga ,  Takashi Seki

IPC分类号： H04K1/10

CPC分类号： H04L27/2662 ,  H04L27/2657 ,  H04L27/2675

摘要： In an OFDM reception apparatus, a Fourier transform unit segments a time-domain signal in an OFDM signal in accordance with a segmenting window signal and converts the time-domain signal into a frequency-domain signal. A first signal extraction unit extracts pilot signals periodically arranged in a frequency direction and in a time direction from an output from the Fourier transform unit. A second signal extraction unit extracts differential reference signals from an output from the Fourier transform unit. A delay profile detection unit performs delay profile detection using the output from the second signal extraction unit, and performs delay profile detection on the output from the first signal extraction unit within a range limited on the basis of a result of the detection. A synchronous reproduction unit generates the segmenting window signal using an output from the delay profile detection unit.

摘要翻译： 在OFDM接收装置中，傅立叶变换单元根据分割窗口信号对OFDM信号中的时域信号进行分段，并将时域信号变换为频域信号。 第一信号提取单元从傅里叶变换单元的输出中提取频率方向和时间方向周期性排列的导频信号。 第二信号提取单元从傅立叶变换单元的输出中提取差分参考信号。 延迟分布检测单元使用来自第二信号提取单元的输出执行延迟分布检测，并且在基于检测结果限制的范围内对来自第一信号提取单元的输出进行延迟分布检测。 同步再现单元使用延迟分布检测单元的输出产生分割窗口信号。