公开(公告)号：US20060129318A1

公开(公告)日：2006-06-15

申请号：US10540022

申请日：2003-12-26

申请人： Yuji Mizuguchi ,  Nobuhiko Yasui ,  Noboru Katta ,  Takahisa Sakai ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Takashi Akita ,  Takefumi Yoshikawa ,  Shiro Dosho

发明人： Yuji Mizuguchi ,  Nobuhiko Yasui ,  Noboru Katta ,  Takahisa Sakai ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Takashi Akita ,  Takefumi Yoshikawa ,  Shiro Dosho

IPC分类号： G06F19/00

CPC分类号： H04L7/0334 ,  H04L7/005 ,  H04L7/027 ,  H04L7/033

摘要： To a data reception device, a signal having a frequency of 12.5 MHz and including data is transmitted. The data reception device generates a clock B having a frequency of 400 MHz of (1) in FIG. 8, and performs sampling for the above-described 12.5 MHz signal based on the clock B ((2) in FIG. 8). Then, the data reception device detects zero cross points of the sampled data, and generates a 25 MHz frequency clock signal indicating the zero cross points ((3) in FIG. 8). Next, the data reception device generates, by delaying the generated clock signal by the time amount corresponding to eight clocks ((4) in FIG. 8), a 25 MHz signal indicating symbol points. Thus, symbol points can be detected.

摘要翻译： 向数据接收装置发送频率为12.5MHz并包括数据的信号。 数据接收装置在图1中生成具有400MHz的频率的时钟B（1）。 基于时钟B（图8的（2））对上述12.5MHz信号进行采样。 然后，数据接收装置检测取样数据的零交叉点，生成表示零交叉点（图8的（3））的25MHz频率时钟信号。 接下来，数据接收装置通过将生成的时钟信号延迟与8个时钟（图8的（4））对应的时间量来生成表示符号点的25MHz信号。 因此，可以检测符号点。

公开(公告)号：US06992537B2

公开(公告)日：2006-01-31

申请号：US10468829

申请日：2002-12-27

申请人： Nobuhiko Yasui ,  Noboru Katta ,  Takahisa Sakai ,  Yuji Mizuguchi ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Takashi Akita ,  Osamu Shibata

发明人： Nobuhiko Yasui ,  Noboru Katta ,  Takahisa Sakai ,  Yuji Mizuguchi ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Takashi Akita ,  Osamu Shibata

IPC分类号： H03H7/01 ,  H03H7/38

CPC分类号： H03H7/427 ,  H03H7/06 ,  H03H7/24 ,  H04B3/30 ,  H04L25/085

摘要： A receiver includes a noise reduction circuit for eliminating noise from a differential signal transmitted through a differential transmission line, and a data recovery circuit for recovering data from a differential signal outputted from the noise reduction circuit. The noise reduction circuit includes common-mode chokes for reflecting common-mode noise superimposed on an input differential signal, and a common-mode noise reduction circuit for directing the common-mode noise reflected by the common-mode chokes to a low potential point of the common-mode noise reduction circuit.

摘要翻译： 接收机包括用于消除通过差分传输线传输的差分信号的噪声的噪声降低电路，以及用于从从降噪电路输出的差分信号中恢复数据的数据恢复电路。 噪声降低电路包括用于反映叠加在输入差分信号上的共模噪声的共模扼流圈和用于将由共模扼流圈反射的共模噪声引导到低电位点的共模噪声降低电路 共模降噪电路。

公开(公告)号：US20050265262A1

公开(公告)日：2005-12-01

申请号：US10529251

申请日：2003-12-24

申请人： Yuji Mizuguchi ,  Nobuhiko Yasui ,  Noboru Katta ,  Takahisa Sakai ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Takashi Akita

发明人： Yuji Mizuguchi ,  Nobuhiko Yasui ,  Noboru Katta ,  Takahisa Sakai ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Takashi Akita

IPC分类号： H04L12/42 ,  H04L12/28

CPC分类号： H04L12/10 ,  H04L12/40039 ,  H04L12/42 ,  H04L2012/40273

摘要： A data transmission device (1) includes a controller (2), a reception section (5), a transmission section (6), and an MPU (3). The reception section (5) receives an electric signal sent from a preceding device, and outputs its data to the controller (2). The transmission section (6) converts a result of a process by the controller (2) into an electric signal and transmits it to a successive device. The MPU (3) controls operation of the controller (2), the reception section (5), and the transmission section (6) in accordance with the operation mode of the device. The reception section (5) detects cessation of the electric signal sent from the preceding device and, in response to the detection, stops operating. In response to the detection, the transmission section (6) stops operating and stops sending the electric signal to the successive device.

摘要翻译： 数据传输装置（1）包括控制器（2），接收部分（5），传输部分（6）和MPU（3）。 接收部（5）接收从前一装置发送的电信号，并将其数据输出到控制器（2）。 发送部（6）将控制器（2）的处理结果转换成电信号，并将其发送到连续的装置。 MPU（3）根据设备的操作模式控制控制器（2），接收部分（5）和传输部分（6）的操作。 接收部（5）检测从前一装置发送的电信号的停止，并且响应于该检测停止操作。 响应于检测，发送部分（6）停止操作并停止向连续的设备发送电信号。

公开(公告)号：US20050025496A1

公开(公告)日：2005-02-03

申请号：US10780718

申请日：2004-02-19

申请人： Takashi Akita ,  Noboru Katta ,  Takahisa Sakai ,  Yuji Mizuguchi ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Yutaka Takahira

发明人： Takashi Akita ,  Noboru Katta ,  Takahisa Sakai ,  Yuji Mizuguchi ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Yutaka Takahira

IPC分类号： H04B10/299 ,  H04B10/00

CPC分类号： H04B10/299

摘要： If a master data transmission apparatus is included in an optical data transmission system, a clock recovered by a first clock recovery unit 91 based on an optical signal received from the optical data transmission system is selected by a clock selecting unit 93. If the master data transmission apparatus is included in an electrical data transmission system, a clock recovered by a second clock recovery unit 92 based on a lock signal received from the electrical data transmission system is selected by the clock selecting unit 93. A mapping unit 74, a digital filter 75, and a D/A converting unit 76 perform processing in accordance with the clock selected by the clock selecting unit 93.

摘要翻译： 如果主数据传输装置包括在光数据传输系统中，则由时钟选择单元93选择基于从光数据传输系统接收的光信号由第一时钟恢复单元91恢复的时钟。如果主数据 发送装置被包括在电气数据传输系统中，时钟选择单元93选择由第二时钟恢复单元92基于从电数据传输系统接收的锁定信号恢复的时钟。映射单元74，数字滤波器 75，D / A转换单元76根据由时钟选择单元93选择的时钟进行处理。

公开(公告)号：US20060165194A1

公开(公告)日：2006-07-27

申请号：US10530321

申请日：2004-01-28

申请人： Yuji Mizuguchi ,  Nobuhiko Yasui ,  Noboru Katta ,  Takahisa Sakai ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Takashi Akita

发明人： Yuji Mizuguchi ,  Nobuhiko Yasui ,  Noboru Katta ,  Takahisa Sakai ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Takashi Akita

IPC分类号： H04L27/20

CPC分类号： H04L25/4904 ,  H03M5/12 ,  H04L25/4917

摘要： The data sending device (10) receives input biphase-mark-encoded sending data which is output from an apparatus on the sending side, and a biphase decoding section (12) biphase-mark-decodes the input sending data. The output data from the biphase decoding section (12) is transmitted to a data receiving device via a sending section (14). On the other hand, the data receiving device biphase-mark-encodes the data received from the data sending apparatus (10) and then supplies the data to an apparatus on the receiving side.

摘要翻译： 数据发送装置（10）接收从发送侧的装置输出的输入双相标记编码发送数据，双相解码部（12）对输入的发送数据进行双相标记解码。 来自双相解码部分（12）的输出数据经由发送部分（14）发送到数据接收装置。 另一方面，数据接收装置对从数据发送装置（10）接收的数据进行双相标记编码，然后将数据提供给接收侧的装置。

公开(公告)号：US20060155816A1

公开(公告)日：2006-07-13

申请号：US10536256

申请日：2003-12-24

申请人： Toshitomo Umei ,  Noboru Katta ,  Nobuhiko Yasui ,  Takahisa Sakai ,  Yuji Mizuguchi ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Takashi Akita

发明人： Toshitomo Umei ,  Noboru Katta ,  Nobuhiko Yasui ,  Takahisa Sakai ,  Yuji Mizuguchi ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Takashi Akita

IPC分类号： G06F15/16

CPC分类号： H04N21/43615 ,  H04J3/0647 ,  H04J3/085 ,  H04L7/046 ,  H04L7/06 ,  H04L7/10 ,  H04L12/42 ,  H04N21/41422 ,  H04N21/4302 ,  H04N21/4305 ,  H04N21/43632

摘要： A data transmission device (1a) generates and transmits a lock signal for establishing clock synchronization with data transmission devices (1b-n). The data transmission device (1a) is capable of generating a pattern 1 lock signal for giving a notice of start of communication by use of data subjected to eight-value mapping, and a pattern 2 lock signal for giving a notice of start of communication by use of data subjected to four-value mapping. One of the two types of lock signals is transmitted to each data transmission device. Determining which lock signal has been received enables each data transmission device to give a notice of data communication method prior to training.

摘要翻译： 数据发送装置（1a）生成并发送用于与数据发送装置（1b-n）建立时钟同步的锁定信号。 数据发送装置（1a）能够生成用于通过使用经过八值映射的数据给出通信开始的通知的模式1锁定信号，以及用于给出通信开始通知的模式2锁定信号 通过使用经过四值映射的数据。 两种类型的锁定信号中的一种被发送到每个数据传输设备。 确定哪个锁定信号已经被接收使得每个数据传输设备能够在训练之前给出数据通信方法的通知。

公开(公告)号：US20060072624A1

公开(公告)日：2006-04-06

申请号：US10540258

申请日：2004-01-29

申请人： Takashi Akita ,  Noboru Katta ,  Nobuhiko Yasui ,  Takahisa Sakai ,  Yuji Mizuguchi ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei

发明人： Takashi Akita ,  Noboru Katta ,  Nobuhiko Yasui ,  Takahisa Sakai ,  Yuji Mizuguchi ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei

IPC分类号： H04J3/06

CPC分类号： H04L12/437

摘要： In the case where transmission and reception is made impossible at a certain portion, a data transmission system configured in a ring LAN performs an initialization process for a physical layer (a transmission/reception section 4) repeatedly, thereby setting as a master a data transmission device which is located most upstream in electrical communication from a disconnection point. With that data transmission device being the master, an initial setting of the physical layer such as a clock synchronization with another data transmission device or the like is established, and an initialization process for a data link layer is performed, whereby subsequent data transmission and reception is enabled. That is, the data transmission system configured in a ring LAN is able to perform communication using transmission lines excluding a damaged point even in the case where transmission and reception is made impossible at a certain portion.

摘要翻译： 在某一部分不可能进行发送和接收的情况下，在环形LAN中配置的数据传输系统重复地对物理层（发送/接收部分4）进行初始化处理，从而将主机设置为数据传输 设置在断开点处的电气通信中最上游。 在该数据传输装置为主机的情况下，建立物理层的初始设定，例如与另一数据传输装置等的时钟同步，并进行数据链路层的初始化处理，从而进行后续的数据发送和接收 启用。 也就是说，即使在某一部分不可能发送和接收的情况下，环形LAN中配置的数据传输系统也能够使用除损坏点之外的传输线进行通信。

公开(公告)号：US20060034388A1

公开(公告)日：2006-02-16

申请号：US10530278

申请日：2004-01-28

申请人： Yuji Mizuguchi ,  Nobuhiko Yasui ,  Noboru Katta ,  Takahisa Sakai ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Takashi Akita

发明人： Yuji Mizuguchi ,  Nobuhiko Yasui ,  Noboru Katta ,  Takahisa Sakai ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Takashi Akita

IPC分类号： H04L27/20

CPC分类号： H04L25/4917 ,  H03M5/20 ,  H04L7/041

摘要： A data section is mapped such that the polarity of the signal level of each symbol is constantly inverted on a symbol by symbol basis. On the other hand, a header section is mapped such that the header section includes a distinguishing symbol for distinguishing the data section and the header section from each other, and such that the signal level of the distinguishing symbol is equal to the signal level of the symbol which is mapped immediately before the distinguishing symbol. Thus, data transfer, by which the header section and the data section can be distinguished from each other with certainty by an apparatus on the receiving side, is made possible.

摘要翻译： 映射数据部分，使得每个符号的信号电平的极性基于符号依次不断地反转。 另一方面，映射标题部分，使得标题部分包括用于区分数据部分和标题部分的区分符号，并且使得区分符号的信号电平等于信号级别 该符号紧接在区分符号之前映射。 因此，可以通过接收侧的装置确定性地区分头部部分和数据部分的数据传送成为可能。

公开(公告)号：US20060050820A1

公开(公告)日：2006-03-09

申请号：US10539235

申请日：2004-02-10

申请人： Hirotsugu Kawada ,  Yoshiyuki Saito ,  Osamu Shibata ,  Hiroshi Suenaga ,  Takahisa Sakai ,  Toshitomo Umei ,  Takashi Akita ,  Yuji Mizuguchi ,  Noboru Katta

发明人： Hirotsugu Kawada ,  Yoshiyuki Saito ,  Osamu Shibata ,  Hiroshi Suenaga ,  Takahisa Sakai ,  Toshitomo Umei ,  Takashi Akita ,  Yuji Mizuguchi ,  Noboru Katta

IPC分类号： H04L7/00

CPC分类号： H04L7/00 ,  H04L7/0334

摘要： A signal receiver (11) receives an analog signal via a twisted pair cable (31). An A/D converter (12) converts the analog signal to a digital signal. A phase detection unit (14) detects the phase of the digital signal, and generates a reception timing signal. A transmission timing generation unit (15) controls, based on the reception timing signal, timing for a transmission processing unit (16) to output the digital signal such that the reception signal (point A) and a transmission signal (point D) are different in phase by a predetermined degree. The transmission processing unit (16) outputs, in accordance with the timing, a digital signal obtained by performing mapping on data inputted from a connection device (20). A D/A converter (17) converts the digital signal to an analog signal. A signal transmitter (18) transmits the analog signal via a twisted pair cable (32).

摘要翻译： 信号接收器（11）经由双绞线电缆（31）接收模拟信号。 A / D转换器（12）将模拟信号转换成数字信号。 相位检测单元（14）检测数字信号的相位，并产生接收定时信号。 发送定时生成单元（15）基于接收定时信号，控制发送处理单元（16）输出数字信号的定时，使得接收信号（点A）和发送信号（点D）不同 同时预定的程度。 发送处理单元（16）根据定时输出通过对从连接装置（20）输入的数据进行映射而获得的数字信号。 D / A转换器（17）将数字信号转换成模拟信号。 信号发送器（18）经由双绞线电缆（32）发送模拟信号。

公开(公告)号：US20050083863A1

公开(公告)日：2005-04-21

申请号：US10777056

申请日：2004-02-13

申请人： Toshitomo Umei ,  Noboru Katta ,  Takahisa Sakai ,  Yuji Mizuguchi ,  Hirotsugu Kawada ,  Takashi Akita

发明人： Toshitomo Umei ,  Noboru Katta ,  Takahisa Sakai ,  Yuji Mizuguchi ,  Hirotsugu Kawada ,  Takashi Akita

IPC分类号： H04L29/10 ,  H04L12/40 ,  H04L12/42 ,  H04L12/43 ,  H04L29/08 ,  H04L5/22

CPC分类号： H04L12/403 ,  H04L12/42 ,  H04L12/43

摘要： Initialization processes of link layers in a data transmission system are started after initialization processes of respective physical layers are completed. Thus, at the time of initialization of the link layers, the respective physical layers can perform communication with each other. As a result, in the data transmission system in which electrical communication is performed, an initialization program (an API which is supplied assuming that physical layers requiring no initialization process are used) designed assuming that physical layers are in a state where they can perform communication during an initialization period of link layers can be used while satisfying the above assumption.

摘要翻译： 在各个物理层的初始化处理完成之后，数据传输系统中的链路层的初始化过程开始。 因此，在链路层的初始化时，各个物理层可以彼此进行通信。 结果，在进行电通信的数据传输系统中，假设物理层处于可以进行通信的状态下，设计初始化程序（假定不需要初始化处理的物理层被提供的API） 在满足上述假设的同时可以使用链路层的初始化期间。