公开(公告)号：US07218678B2

公开(公告)日：2007-05-15

申请号：US10398450

申请日：2001-10-05

申请人： Noboru Katta ,  Yuji Mizuguchi ,  Takahisa Sakai ,  Hirotsugu Kawada ,  Toshihiko Kurosaki

发明人： Noboru Katta ,  Yuji Mizuguchi ,  Takahisa Sakai ,  Hirotsugu Kawada ,  Toshihiko Kurosaki

IPC分类号： H04L27/00

CPC分类号： H04L25/062 ,  H04L25/066 ,  H04L25/085 ,  H04L25/4919

摘要： A digital data transmission apparatus includes a transmitting end (100) that includes: a binary/quadrary conversion unit (110) for converting a data stream; a coding unit (120) for mapping converted data to be coded; a digital filter (130); a D/A conversion unit (140); a low-pass filter (150) for attenuating noises which are caused by folding distortion; a differential driver (160); low-pass filters (170a) and (170b) for eliminating noises from differentially outputted signals; and a common mode choke coil (180) for eliminating common mode noises and outputting a resultant signal to a twisted pair cable (300), and a receiving end (200) that includes: a low-pass filter (210) for eliminating noises from the twisted pair cable; a receiver (220); an A/D conversion unit (230); a digital filter (240); an evaluation unit (250) for evaluating a signal level of a received signal; a decoding unit (260) for decoding the signal level into received data; and a synchronization unit (270) for generating a clock.

摘要翻译： 数字数据传输装置包括：发送端（100），包括：用于转换数据流的二进制/四次转换单元（110）; 编码单元（120），用于映射要编码的转换数据; 数字滤波器（130）; D / A转换单元（140）; 用于衰减由折叠失真引起的噪声的低通滤波器（150）; 差速驱动器（160）; 低通滤波器（170a）和（170b），用于消除差分输出信号的噪声; 以及用于消除共模噪声并将结果信号输出到双绞线电缆（300）的共模扼流线圈（180），以及接收端（200），包括：低通滤波器（210），用于消除噪声 双绞线; 接收器（220）; A / D转换单元（230）; 数字滤波器（240）; 评估单元（250），用于评估接收信号的信号电平; 用于将信号电平解码为接收数据的解码单元（260）; 以及用于产生时钟的同步单元（270）。

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：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：US06839006B1

公开(公告)日：2005-01-04

申请号：US10771062

申请日：2004-02-04

申请人： Takahisa Sakai ,  Yuji Mizuguchi ,  Toshitomo Umei ,  Noboru Katta

发明人： Takahisa Sakai ,  Yuji Mizuguchi ,  Toshitomo Umei ,  Noboru Katta

IPC分类号： H04L25/32 ,  H03M5/12 ,  H03M5/20 ,  H03M7/12 ,  H04L25/49

CPC分类号： H03M5/12 ,  H03M5/20 ,  H04L25/4904

摘要： An S/P converter 120 converts input data from serial to parallel for every two bits in different timings, thereby outputting two types of parallel data. Based on the input data, a timing detector 130 detects a timing which corresponds to boundaries between bits of a data portion before biphase encoding. Based on the detection result of the timing detector, a selector 140 selects either one of the two types of parallel data output from the S/P converter 120.

摘要翻译： S / P转换器120在不同的定时将输入数据从串行转换为每两比特并行，从而输出两种并行数据。 基于输入数据，定时检测器130检测对应于双相编码之前的数据部分的位之间的边界的定时。 基于定时检测器的检测结果，选择器140选择从S / P转换器120输出的两种并行数据中的一种。

公开(公告)号：US07286616B2

公开(公告)日：2007-10-23

申请号：US10493499

申请日：2003-05-30

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

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

IPC分类号： H04L27/06

CPC分类号： H04L25/085 ,  H04L7/046 ,  H04L25/08 ,  H04L25/4917

摘要： A data transmission system in which normal transmission can be performed irrespectively of the inserting orientation of a connector is provided. A transmitting device transmits to a receiving device a differential transmission signal including polarity decision data for deciding the polarity of the connector. Based on the polarity decision data included in the differential transmission signal transmitted from the transmitting device, the receiving device decides whether the polarity of the connector has been reversed or not. When it is decided that the polarity has not been reversed, the receiving device reads data from the differential transmission signal. When it is decided that the polarity has been reversed, the polarity of the differential transmission signal is reversed for data reading.

摘要翻译： 提供了一种数据传输系统，其中可以执行与连接器的插入方向无关的正常传输。 发送装置向接收装置发送包含决定连接器的极性的极性决定数据的差分发送信号。 基于从发送装置发送的差分发送信号中包含的极性判定数据，接收装置判定连接器的极性是否已被反转。 当确定极性未被反转时，接收装置从差分传输信号读取数据。 当确定极性已被反转时，差分传输信号的极性反转用于数据读取。

公开(公告)号：US07190728B2

公开(公告)日：2007-03-13

申请号：US10398447

申请日：2001-10-05

申请人： Hirotsugu Kawada ,  Yuji Mizuguchi ,  Takahisa Sakai ,  Noboru Katta ,  Toshihiko Kurosaki

发明人： Hirotsugu Kawada ,  Yuji Mizuguchi ,  Takahisa Sakai ,  Noboru Katta ,  Toshihiko Kurosaki

IPC分类号： H04L27/00

CPC分类号： H04L25/062 ,  H04L25/066 ,  H04L25/085 ,  H04L25/4919

摘要： A digital data transmission apparatus includes a transmitting end (100) that includes: a binary/quadrary conversion unit (110) for converting a data stream; a coding unit (120) for mapping the converted data to be coded; a digital filter (130); a D/A conversion unit (140); a low-pass filter (150) for eliminating a high-band signal; a differential driver (160) for inputting an analog signal that has passed through the low-pass filter into a twisted pair cable (300), and a receiving end (200) that includes: a low-pass filter (210) for eliminating noises from both wires of the twisted pair cable; a receiver (220) for receiving the signals that have passed through the low-pass filter; an A/D conversion unit (230); a digital filter (240); an evaluation unit (250) for evaluating a signal level of a received signal; a decoding unit (260) for decoding the signal level into receipt data; and a synchronization unit (270) for generating a clock.

摘要翻译： 数字数据传输装置包括：发送端（100），包括：用于转换数据流的二进制/四次转换单元（110）; 编码单元，用于映射所转换的要编码的数据; 数字滤波器（130）; D / A转换单元（140）; 用于消除高频带信号的低通滤波器（150）; 用于将通过所述低通滤波器的模拟信号输入到双绞线电缆（300）中的差分驱动器（160）以及包括：用于消除噪声的低通滤波器（210）的接收端（200） 从双绞线的两根电线; 接收器（220），用于接收已经通过低通滤波器的信号; A / D转换单元（230）; 数字滤波器（240）; 评估单元（250），用于评估接收信号的信号电平; 解码单元，用于将信号电平解码为接收数据; 以及用于产生时钟的同步单元（270）。

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：US20050030934A1

公开(公告)日：2005-02-10

申请号：US10493499

申请日：2003-05-30

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

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

IPC分类号： H04L7/04 ,  H04L25/08 ,  H04L25/49 ,  H04J3/06

CPC分类号： H04L25/085 ,  H04L7/046 ,  H04L25/08 ,  H04L25/4917

摘要： A data transmission system in which normal transmission can be performed irrespectively of the inserting orientation of a connector is provided. A transmitting device transmits to a receiving device a differential transmission signal including polarity decision data for deciding the polarity of the connector. Based on the polarity decision data included in the differential transmission signal transmitted from the transmitting device, the receiving device decides whether the polarity of the connector has been reversed or not. When it is decided that the polarity has not been reversed, the receiving device reads data from the differential transmission signal. When it is decided that the polarity has been reversed, the polarity of the differential transmission signal is reversed for data reading.

摘要翻译： 提供了一种数据传输系统，其中可以执行与连接器的插入方向无关的正常传输。 发送装置向接收装置发送包含决定连接器的极性的极性决定数据的差分发送信号。 基于从发送装置发送的差分发送信号中包含的极性判定数据，接收装置判定连接器的极性是否已被反转。 当确定极性未被反转时，接收装置从差分传输信号读取数据。 当确定极性已被反转时，差分传输信号的极性反转用于数据读取。

公开(公告)号：US07133936B2

公开(公告)日：2006-11-07

申请号：US10398377

申请日：2001-10-05

申请人： Noboru Katta ,  Yuji Mizuguchi ,  Takahisa Sakai ,  Hirotsugu Kawada ,  Toshihiko Kurosaki ,  Nobuhiko Yasui ,  Yutaka Takahira

发明人： Noboru Katta ,  Yuji Mizuguchi ,  Takahisa Sakai ,  Hirotsugu Kawada ,  Toshihiko Kurosaki ,  Nobuhiko Yasui ,  Yutaka Takahira

IPC分类号： G06F15/16

CPC分类号： H04L25/085 ,  H04L25/062 ,  H04L25/066 ,  H04L25/4919

摘要： A ring-shaped network quickly performs initialization even when a plurality of data transmission apparatuses are connected thereto. Each data transmission apparatus outputs received data to a device connected thereto while performing establishment of clock synchronization based on the received data, and when synchronization is established, it resends the received data. Further, when synchronization of the connected device is established, it sends data supplied from the connected device. Further, a master data transmission apparatus outputs data at turn-on of power or immediately after reset, and a next-stage slave data transmission apparatus receives the data to establish synchronization, and resends the received data when synchronization is established. Thus, synchronization of all the data transmission apparatuses is established while making a round of this data, and then synchronization of devices connected to the respective data transmission apparatuses is established.

摘要翻译： 即使当多个数据传输装置连接到其上时，环形网也快速执行初始化。 每个数据传输装置在接收到的数据基于时钟同步建立的同时将接收的数据输出到连接的装置，并且当建立同步时，其重新发送所接收的数据。 此外，当连接的设备的同步建立时，它发送从连接的设备提供的数据。 此外，主数据发送装置在接通电源或复位后立即输出数据，下一级从属数据发送装置接收数据以建立同步，并且在同步建立时重新发送接收的数据。 因此，在进行一轮该数据的同时建立所有数据传输装置的同步，然后建立连接到各个数据传输装置的装置的同步。