公开(公告)号：US20110069766A1

公开(公告)日：2011-03-24

申请号：US12888497

申请日：2010-09-23

申请人： Akira Takahashi ,  Masaki Takanashi ,  Tsutayuki Shibata

发明人： Akira Takahashi ,  Masaki Takanashi ,  Tsutayuki Shibata

IPC分类号： H04B3/00

CPC分类号： H04B3/548 ,  H04B2203/5458 ,  H04L27/2601

摘要： A method of communicating with using an electric power line for a mobile body so that a first device transmits first information to a second device includes: coupling the first device with multiple first coupling points in an electric power line network; coupling the second device with multiple second coupling points; transmitting second information about transmission characteristics from the second device to the first device; modulating multiple transmission waves to be transmitted from the first device via the transmission points by the first device with using a transmission diversity method based on the second information; and demodulating multiple reception waves received by the second device via the reception points by the second device with using a reception diversity method.

摘要翻译： 一种与移动体使用电力线通信使得第一装置向第二装置发送第一信息的方法包括：将第一装置与电力线网络中的多个第一耦合点耦合; 将所述第二装置与多个第二联接点联接; 从所述第二设备向所述第一设备发送关于传输特性的第二信息; 通过使用基于第二信息的传输分集方法来调制由第一设备经由传输点从第一设备发送的多个传输波; 以及通过使用接收分集方法，经由所述第二设备经由所述接收点解调由所述第二设备接收的多个接收波。

公开(公告)号：US6115426A

公开(公告)日：2000-09-05

申请号：US976261

申请日：1997-11-21

申请人： Mitoshi Fujimoto ,  Tsutayuki Shibata ,  Noriyoshi Suzuki ,  Chisato Endo

发明人： Mitoshi Fujimoto ,  Tsutayuki Shibata ,  Noriyoshi Suzuki ,  Chisato Endo

IPC分类号： H04L27/38 ,  H04B1/10 ,  H04B7/10 ,  H04J11/00 ,  H04L1/06 ,  H04L27/26 ,  H04K1/10

CPC分类号： H04L1/06 ,  H04L27/2649 ,  H04L27/2657 ,  H04L27/2662

摘要： An adaptive communication apparatus for use in a multicarrier transmission system in which data sequence to be transmitted is divided into a plurality of data sequences, and these data sequences are converted into a high-frequency signal including a plurality of carriers allocated different frequencies and radio-transmitted in parallel. In the adaptive communication apparatus, a received high-frequency signal is separated into a plurality of carriers by a wave separator. The frequency characteristic of the received high-frequency signal is corrected by a frequency characteristic compensation unit. The frequency characteristic compensation unit is controlled by a controller through use of the high-frequency signal subjected to signal processing by the frequency characteristic compensation unit and the wave separator. The high-frequency signal thus processed by the frequency characteristic compensation unit and the wave separator is demodulated by a demodulator in order to output a plurality of data sequences corresponding to the respective carriers. The original data is reproduced by a parallel-to-serial converter from the plurality of data sequences corresponding to the respective carriers.

摘要翻译： 一种在多载波传输系统中使用的自适应通信装置，其中要发射的数据序列被划分为多个数据序列，并且这些数据序列被转换成包括分配不同频率的多个载波的高频信号， 并行传输。 在自适应通信装置中，通过波分离器将接收的高频信号分离成多个载波。 接收的高频信号的频率特性由频率特性补偿单元进行校正。 频率特性补偿单元由控制器通过使用由频率特性补偿单元和波分离器进行信号处理的高频信号来控制。 由频率特性补偿单元和波分离器进行处理的高频信号由解调器进行解调，以输出对应于各个载波的多个数据序列。 原始数据由对应于各个载波的多个数据序列由并行到串行转换器再现。

公开(公告)号：US5724381A

公开(公告)日：1998-03-03

申请号：US531341

申请日：1995-09-20

申请人： Chisato Endo ,  Naoyuki Yamada ,  Tsutayuki Shibata ,  Masanori Miyashita ,  Yoshimi Kitazumi

发明人： Chisato Endo ,  Naoyuki Yamada ,  Tsutayuki Shibata ,  Masanori Miyashita ,  Yoshimi Kitazumi

IPC分类号： H04B1/707 ,  H04B1/7075 ,  H04K1/00

CPC分类号： H04B1/7075 ,  H04B1/709

摘要： A differential detector (2) reproduces a spreading code (S2) of a received signal (S1). A digital correlator (4) calculates a correlation value between the reproduced spreading code (S2) and a reference spreading code (S3) by collating bit by bit. The timing when the correlation value exceeds a predetermined threshold value (D2) means that the reproduced spreading code (S2) and the reference spreading code (S3) match in phase. A phase of the reproduced spreading code (S2), or a phase of the received signal (S1), is discriminated at that timing. A multiplier (8) outputs a modulated signal (S6) by multiplying the received signal (S1) bit by bit in phase by a spreading code (S5) which has the same code as the reference spreading code (S3). In result, a spreading code with an accurate code sequence and phase is obtained for despreading, and theoretical process-gain is obtained.

摘要翻译： 差分检测器（2）再现接收信号的扩展码（S2）（S1）。 数字相关器（4）通过逐比较来计算再现的扩展码（S2）和参考扩展码（S3）之间的相关值。 当相关值超过预定阈值（D2）时的定时意味着再现的扩展码（S2）和参考扩展码（S3）同相匹配。 在该定时，区分再生扩展码（S2）的相位或接收信号（S1）的相位。 乘法器（8）通过将接收信号（S1）逐位乘以具有与参考扩展码相同的码的扩展码（S5），输出调制信号（S6）（S3）。 结果，获得具有精确代码序列和相位的扩展码用于解扩，并获得理论处理增益。

公开(公告)号：US20140334568A1

公开(公告)日：2014-11-13

申请号：US14362760

申请日：2012-11-26

申请人： Hideki Gotou ,  Shinichi Iiyama ,  Takashi Yasuda ,  Keigo Takahashi ,  Tsutayuki Shibata

发明人： Hideki Gotou ,  Shinichi Iiyama ,  Takashi Yasuda ,  Keigo Takahashi ,  Tsutayuki Shibata

IPC分类号： H04L27/10

CPC分类号： H04L27/10 ,  H04B3/548 ,  H04B2203/5408 ,  H04B2203/5416 ,  H04B2203/547 ,  H04L5/06 ,  H04L5/1423 ,  H04L12/40189 ,  H04L27/02 ,  H04L2012/40215

摘要： A communication device is provided that readily increases the communication capacity of communication data based on a given protocol, without increasing the number of wired connections. The communication device sends and receives communication data through a communication line. A transmitting section sends a communication signal of modulated communication data to the communication line. A receiving section demodulates a communication signal received from the communication line to obtain communication data The transmitting section modulates the communication data on the basis of a frequency that varies dynamically within a predetermined transmission frequency band. The receiving section demodulates the received modulated communication signal corresponding to the transmission frequency band, to obtain the communication data.

摘要翻译： 提供了一种通信设备，其不会增加有线连接的数量，而容易地增加基于给定协议的通信数据的通信容量。 通信设备通过通信线路发送和接收通信数据。 发送部将经调制的通信数据的通信信号发送到通信线路。 接收部分解调从通信线路接收到的通信信号，以获得通信数据。发送部分根据在预定发送频带内动态变化的频率来调制通信数据。 接收部对与发送频带对应的接收到的调制通信信号进行解调，得到通信数据。

公开(公告)号：US07035348B2

公开(公告)日：2006-04-25

申请号：US10153655

申请日：2002-05-24

申请人： Noriyoshi Suzuki ,  Tomohisa Harada ,  Tsutayuki Shibata ,  Hisanori Uda ,  Hiroaki Hayashi ,  Nobuo Itoh

发明人： Noriyoshi Suzuki ,  Tomohisa Harada ,  Tsutayuki Shibata ,  Hisanori Uda ,  Hiroaki Hayashi ,  Nobuo Itoh

IPC分类号： H03K9/00

CPC分类号： H04L5/06

摘要： A receiver configured to receive a plurality of signals k (k=1, 2, . . . , M) allocated in a first frequency band. The receiver includes a frequency conversion section for reallocating the signals k in a second frequency band for sampling by a single AD converter at a sampling frequency fs such that digital data of the sampled signals k are obtained in a third frequency band extending from zero Hz to a frequency represented by fs/2; and a signal extraction section for extracting a target base band signal k from the digital data obtained by the AD conversion section. The frequency conversion section performs the reallocation in such a manner that at least a frequency represented by Jfs/2 (J is an integer) is located between the frequencies of at least two of the signals k and that the sampled signals do not overlap.

摘要翻译： 接收器，被配置为接收分配在第一频带中的多个信号k（k = 1,2，...，M）。 该接收机包括一个频率转换部分，用于重新分配第二频带中的信号k，以便以单个AD转换器以采样频率f S采样，使得采样信号k的数字数据以 第三频带从零Hz延伸到由f / s2表示的频率; 以及信号提取部分，用于从由AD转换部分获得的数字数据中提取目标基带信号k。 频率转换部分以这样的方式执行重新分配，使得至少由J f S 2/2（J为整数）表示的频率位于信号k中的至少两个的频率之间，并且 采样信号不重叠。