公开(公告)号：US20120140612A1

公开(公告)日：2012-06-07

申请号：US13389915

申请日：2010-08-17

申请人： Mihail Petrov ,  Tomohiro Kimura

发明人： Mihail Petrov ,  Tomohiro Kimura

IPC分类号： H04J11/00

CPC分类号： H04J11/0063 ,  H04B7/02

摘要： The present invention relates to digital data communication and provides an efficient method for generating multi-dimensional constellations for digital data modulation with a high degree of modulation diversity, a method for transmitting and receiving data on the basis of such constellations, and a corresponding apparatus. This is achieved by considering only multi-dimensional rotation matrices with all elements on the diagonal having the same first absolute value and all other elements having the same non-zero second absolute value. In this manner, multi-dimensional rotation matrices can be generated having only a single independent parameter and a structure that is as regular as possible. The independent parameter can be configured in order to minimize the error probability for various constellation sizes.

摘要翻译： 本发明涉及数字数据通信，并且提供了一种用于产生具有高度调制分集的数字数据调制的多维星座的有效方法，基于这样的星座发送和接收数据的方法以及相应的装置。 这通过仅考虑具有相同第一绝对值的对角线上的所有元素的多维旋转矩阵并且具有相同的非零第二绝对值的所有其它元素来实现。 以这种方式，可以生成仅具有单个独立参数和尽可能规则的结构的多维旋转矩阵。 可以配置独立参数以便最小化各种星座大小的误差概率。

公开(公告)号：US08179986B2

公开(公告)日：2012-05-15

申请号：US12158825

申请日：2006-12-18

申请人： Tomohiro Kimura ,  Yukihiro Omoto ,  Kenichi Mori

发明人： Tomohiro Kimura ,  Yukihiro Omoto ,  Kenichi Mori

IPC分类号： H04K1/10

CPC分类号： H04L25/0226 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/022 ,  H04L25/0228 ,  H04L27/2647 ,  H04L27/2698 ,  H04L2025/03414

摘要： In order is to generate a pilot signal for estimating a transmission characteristic of a transmission channel suitable for OFDM/OQAM multicarrier modulation, a phase reference pilot symbol of which a modulation amplitude is suppressed to zero, and an amplitude reference pilot signal obtained through modulation performed by using an amplitude known to a reception end are transmitted from a transmission end. Further, the transmission characteristic of the transmission channel is estimated and compensated using the phase reference pilot signal and the amplitude reference pilot signal at the reception end. Accordingly, it is possible to simplify a frame generation process performed at the transmission end, and reduce transmission power for the phase reference pilot signal.

摘要翻译： 为了生成用于估计适合于OFDM / OQAM多载波调制的传输信道的传输特性的导频信号，将调制幅度抑制为零的相位参考导频符号和通过调制获得的幅度参考导频信号 通过使用从接收端已知的幅度从发送端发送。 此外，使用接收端的相位参考导频信号和幅度参考导频信号来估计和补偿传输信道的传输特性。 因此，可以简化在发送端执行的帧生成处理，并且降低相位参考导频信号的发送功率。

公开(公告)号：US20110192021A1

公开(公告)日：2011-08-11

申请号：US13123078

申请日：2009-10-08

申请人： Yuji Tanaka ,  Tomohiro Kimura

发明人： Yuji Tanaka ,  Tomohiro Kimura

IPC分类号： H05K13/04

CPC分类号： H05K13/0452 ,  H05K13/041 ,  Y10T29/4913 ,  Y10T29/49131 ,  Y10T29/53174 ,  Y10T29/53178 ,  Y10T29/53183 ,  Y10T29/53191

摘要： A challenge to be met by the present invention is to provide an electronic component mounting machine and an electronic component loading head in which the loading head has two rows of nozzle shafts and that can promote miniaturization of the machine by minimizing the loading head. In a loading head having two rows of nozzles (L1 and L2) including a plurality of nozzle shafts arranged in rows and at a predetermined nozzle arrangement pitch, a θ rotary drive mechanism that rotates the nozzle shafts around their axes is configured so as to include driven pulleys (28) coupled to the respective nozzle shafts; a plurality of idlers (30) interposed between the two rows of nozzles (L1 and L2); and endless drive belts (29A and 29B) that transmit rotation of the θ-axis motors (27A and 27B) to the driven pulleys (28). Drive surfaces (29a) of the respective driving belts (29A and 29B) are looped around the respective drive pulleys and the respective driven pulleys, and the other sides of the respective drive surfaces (29a) are looped while guided by the idlers (30).

摘要翻译： 本发明要解决的挑战是提供一种电子部件安装机和电子部件装载头，其中装载头具有两排喷嘴轴，并且可以通过最小化装载头来促进机器的小型化。 在具有两排喷嘴（L1和L2）的装载头中，包括排列成行并以预定喷嘴排列间距的多个喷嘴轴， 喷嘴轴绕其轴线旋转的旋转驱动机构构造成包括联接到相应喷嘴轴的从动滑轮（28）; 插入在两排喷嘴（L1和L2）之间的多个惰轮（30）; 以及将所述旋转马达（27A和27B）的旋转传递到从动滑轮（28）的环形传动带（29A和29B）。 相应的驱动带（29A和29B）的驱动表面（29a）围绕相应的驱动滑轮和相应的从动滑轮环绕，并且在由惰轮（30）引导的情况下，相应的驱动表面（29a）的另一侧环绕， 。

公开(公告)号：US07876842B2

公开(公告)日：2011-01-25

申请号：US11783377

申请日：2007-04-09

申请人： Yukihiro Omoto ,  Kenichi Mori ,  Tomohiro Kimura

发明人： Yukihiro Omoto ,  Kenichi Mori ,  Tomohiro Kimura

IPC分类号： H04K1/10

CPC分类号： H04L5/0048 ,  H04L5/0007 ,  H04L25/0224 ,  H04L27/2698

摘要： In a transmitter, at least one pilot carrier which is modulated with a signal sequence including a reference pilot signal sequence represented by any of amplitude modulation vectors {α, α, −α, −α}, {α, −α, −α, α}, {−α, α, α, −α}, and {−α, −α, α, α} where α represents a real number other than 0, is generated, and an OFDM/OQAM multicarrier modulation signal is transmitted. In a receiver, the OFDM/OQAM multicarrier modulation signal is demodulated, and transmission channel characteristics are estimated and corrected based on two successive demodulation vectors in a time direction which are obtained by demodulating the pilot carrier.

摘要翻译： 在一个发射机中，至少一个导频载波用包括由幅度调制向量（α，α，-α，-α），{α，-α，-α，-α}中的任何一个表示的参考导频信号序列的信号序列调制， α}，{-α，α，α，-α}和α-α，α，α，α，其中α表示除0以外的实数，并且发送OFDM / OQAM多载波调制信号 。 在接收机中，解调OFDM / OQAM多载波调制信号，并且基于通过对导频载波进行解调获得的时间方向上的两个连续解调矢量来估计和校正传输信道特性。

公开(公告)号：US20100295713A1

公开(公告)日：2010-11-25

申请号：US12596650

申请日：2008-01-07

申请人： Ikuro Ueno ,  Ryuta Suzuki ,  Tomohiro Kimura

发明人： Ikuro Ueno ,  Ryuta Suzuki ,  Tomohiro Kimura

IPC分类号： H03M7/30

CPC分类号： H04N1/41 ,  H03M7/4006 ,  H04N1/32101

摘要： An coding apparatus includes a number-of-additional-bits calculating means 107 for calculating the number of bits which can be set, as additional bits, at an end of a code sequence in which an information source is entropy-coded on the basis of information about the end of the code sequence, the information being driven from code data which form the code sequence, and an additional bit coding means 108 for setting the additional bits having the number of bits at the end of the code sequence.

摘要翻译： 一种编码装置包括：附加比特数计算装置107，用于在基于熵编码的信息源被熵编码的码序列的末尾处计算可设置的比特数作为附加比特 关于代码序列结束的信息，从形成代码序列的代码数据驱动的信息，以及用于设置在代码序列结束时具有位数的附加位的附加位编码装置108。

公开(公告)号：US20100275102A1

公开(公告)日：2010-10-28

申请号：US12682407

申请日：2008-10-28

申请人： Tetsuya Yagi ,  Takaya Hayashi ,  Kenichiro Hayashi ,  Tomohiro Kimura

发明人： Tetsuya Yagi ,  Takaya Hayashi ,  Kenichiro Hayashi ,  Tomohiro Kimura

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H04L25/03159 ,  H04L1/0045 ,  H04L27/2656

摘要： There is provided a signal demodulating device, including: a time frequency converting unit (6) for converting a frequency division multiplexing signal on a time axis into a signal on a frequency axis to output a data carrier, a pilot carrier, and a transmission control carrier; an equalizer (7) for equalizing the data carrier and the transmission control carrier according to a characteristic value of a transmission line obtained from the pilot carrier to output an equalized data carrier and an equalized transmission control carrier; a first decoding unit (9) for decoding the equalized transmission control carrier; and a first correcting unit (10) for performing first error-correction on an output of said first decoding unit (9) to output first control information and a first decoding flag that indicates a status of the first error-correction.

摘要翻译： 提供了一种信号解调装置，包括：时间频率转换单元（6），用于将时间轴上的频分复用信号转换为频率轴上的信号，以输出数据载波，导频载波和传输控制 载体 均衡器（7），用于根据从导频载波获得的传输线的特性值来均衡数据载波和传输控制载波，以输出均衡的数据载体和均衡的传输控制载体; 用于解码均衡的传输控制载体的第一解码单元（9） 以及用于对所述第一解码单元（9）的输出执行第一纠错以输出第一控制信息的第一校正单元（10）和指示第一错误校正的状态的第一解码标志。

公开(公告)号：US20100177251A1

公开(公告)日：2010-07-15

申请号：US12602672

申请日：2009-04-08

申请人： Tomohiro Kimura ,  Ryosuke Mori

发明人： Tomohiro Kimura ,  Ryosuke Mori

IPC分类号： H04N5/455 ,  H04L27/06

CPC分类号： H04L27/2647 ,  H04L25/021 ,  H04L25/022 ,  H04L25/0232 ,  H04L2025/03414 ,  H04N21/4382 ,  H04N21/44209 ,  H04N21/6112

摘要： A receiver receives an OFDM signal and performs the Fourier transform on the received OFDM signal. In the receiver, a first channel estimation subunit 30 estimates channel characteristics at SP signal positions and interpolates the estimated channel characteristics in the time direction, whereas a second channel estimation subunit 40 estimates channel characteristics at TMCC signal positions. A correlation calculation subunit 50 performs an autocorrelation calculation on the output from the first channel estimation subunit 30, and performs a cross-correlation calculation on the output from the first channel estimation subunit 30 and the output from the second channel estimation subunit 40. By using the results of the autocorrelation calculation and the cross-correlation calculation performed by the correlation calculation subunit 50, a control subunit 60 controls a transfer function of an interpolation filter in a frequency interpolation subunit 70.

摘要翻译： 接收机接收OFDM信号并对所接收的OFDM信号进行傅里叶变换。 在接收机中，第一信道估计子单元30估计SP信号位置的信道特性，并且在时间方向内插估计的信道特性，而第二信道估计子单元40估计TMCC信号位置的信道特性。 相关计算子单元50对第一信道估计子单元30的输出进行自相关运算，对第一信道估计子单元30的输出和第二信道估计子单元40的输出进行互相关运算。通过使用 由相关计算子单元50执行的自相关计算和互相关计算的结果，控制子单元60控制频率插值子单元70中的内插滤波器的传递函数。

公开(公告)号：US20090207956A1

公开(公告)日：2009-08-20

申请号：US12307783

申请日：2007-07-30

申请人： Tomohiro Kimura ,  Kenichiro Hayashi

发明人： Tomohiro Kimura ,  Kenichiro Hayashi

IPC分类号： H04B1/10

CPC分类号： H04L25/0222 ,  H04B17/309 ,  H04L1/0045 ,  H04L5/0048 ,  H04L25/0232 ,  H04L25/03159 ,  H04L27/2647 ,  H04L27/2657

摘要： Channel characteristic calculation unit 23 estimates channel characteristics based on SP signals included in received signals, symbol interpolation filter 24 is able to frequency-shift frequency transfer characteristics and filters output signals of the channel characteristic calculation unit 23. Filter control unit 27 estimates channel characteristics based on CP signals included in the received signals and observes the estimated channel characteristics to determine a shift amount by which the symbol interpolation filter 24 frequency-shifts the frequency transfer characteristics. The symbol interpolation filter 24 frequency-shifts the frequency transfer characteristics based on the shift amount determined by the filter control unit 27.

摘要翻译： 信道特性计算单元23基于接收信号中包括的SP信号来估计信道特性，符号内插滤波器24能够对频移特性进行频移，并对信道特性计算单元23的输出信号进行滤波。滤波器控制单元27基于信道特性估计 对包含在接收信号中的CP信号，并且观察估计的信道特性，以确定符号内插滤波器24对频率传送特性进行频率偏移的偏移量。 符号插值滤波器24根据由滤波器控制单元27确定的移位量对频率传递特性进行频移。

公开(公告)号：US20090140255A1

公开(公告)日：2009-06-04

申请号：US11663281

申请日：2005-06-21

申请人： Tomohiro Kimura ,  Takuto Yasumatsu

发明人： Tomohiro Kimura ,  Takuto Yasumatsu

IPC分类号： H01L29/04 ,  H01L21/70

CPC分类号： H01L29/04 ,  H01L21/02532 ,  H01L21/02672 ,  H01L21/02686 ,  H01L27/1277 ,  H01L27/1285 ,  H01L29/66757 ,  H01L29/78675

摘要： An island of a crystalline semiconductor according to the present invention has an upper surface and a sloped side surface, which are joined together with a curved surface. Crystal grains in a body portion of the island, including the upper surface, and crystal grains in an edge portion of the island, including the sloped side surface, both have average grain sizes that are greater than 0.2 μm.

摘要翻译： 根据本发明的晶体半导体的岛具有上表面和倾斜侧表面，它们与曲面接合在一起。 包括上表面的岛体的主体部分中的晶粒和包括倾斜侧表面的岛的边缘部分中的晶粒均具有大于0.2μm的平均粒度。

公开(公告)号：US20070121750A1

公开(公告)日：2007-05-31

申请号：US10573044

申请日：2005-03-09

申请人： Naganori Shirakata ,  Yasuo Harada ,  Koichiro Tanaka ,  Tomohiro Kimura ,  Shuya Hosokawa ,  Yoshio Urabe

发明人： Naganori Shirakata ,  Yasuo Harada ,  Koichiro Tanaka ,  Tomohiro Kimura ,  Shuya Hosokawa ,  Yoshio Urabe

IPC分类号： H04L1/02

CPC分类号： H04L27/2657 ,  H04L25/0204 ,  H04L27/2613 ,  H04L27/2675

摘要： In a transfer apparatus to which MIMO-OFDM is applied, a data transmission method and a data reception method are provided in which, even when there are frequency errors varying among transfer paths, the precision of estimation of an inverse propagation coefficient function can be improved, thereby making it possible to suppress a degradation in characteristics. Among symbols composed of a plurality of subcarriers orthognal to each other, the transfer apparatus uses, as a synchronization symbol, a symbol in which predetermined amplitudes and phases are assigned to a plurality of subcarriers spaced at predetermined frequency intervals. The synchronization symbol is divided into transmission antennas to generate a plurality of synchronization subsymbols, which are in turn simultaneously transmitted from a plurality of transmission antennas. A reception apparatus estimates a frequency error for each transfer path based on synchronization subsymbols included in signals received by a plurality of reception antennas, and based on the estimated frequency errors, corrects the received signals.

摘要翻译： 在应用MIMO-OFDM的传送装置中，提供数据传输方法和数据接收方法，其中即使在传输路径之间存在频率误差变化的情况下，也可以提高反向传播系数函数的估计精度 ，从而可以抑制特性的劣化。 在由彼此正交的多个子载波组成的符号之中，传送装置使用将预定的幅度和相位分配给以预定频率间隔隔开的多个子载波的符号作为同步符号。 同步符号被分成发送天线以产生多个同步子符号，这些同步子符号又从多个发送天线同时发送。 接收装置基于由多个接收天线接收的信号中包含的同步子符号估计每个传送路径的频率误差，并且基于估计的频率误差来校正接收到的信号。