公开(公告)号：US20110285424A1

公开(公告)日：2011-11-24

申请号：US13097229

申请日：2011-04-29

申请人： Youichirou Suzuki ,  Noboru Maeda ,  Yasuhiro Fukagawa ,  Takahisa Koyasu ,  Masakiyo Horie ,  Tomohisa Kishigami

发明人： Youichirou Suzuki ,  Noboru Maeda ,  Yasuhiro Fukagawa ,  Takahisa Koyasu ,  Masakiyo Horie ,  Tomohisa Kishigami

IPC分类号： H03K17/00

CPC分类号： H03K17/0822 ,  H03K17/284

摘要： When a transmission signal is detected as having been changed from a high level to a low level, two transmission lines are connected for only a predetermined time through a diode by a first transistor and a second transistor. The diode is arranged such that its forward direction is from a high-side transmission line to a low-side transmission line. The diode turns on, when a potential of the high-side transmission line becomes higher than that of the low-side transmission line by ringing and a potential difference therebetween exceeds a forward drop voltage of the diode. As a result, a peak wave level of a positive side in the ringing is limited to the forward drop voltage of the diode.

摘要翻译： 当检测到发送信号已经从高电平变为低电平时，通过第一晶体管和第二晶体管通过二极管连接两条传输线只有预定的时间。 二极管被布置成使其正向方向从高侧传输线到低侧传输线。 当高侧传输线的电位通过振铃变得比低侧传输线的电位高，并且其间的电位差超过二极管的正向压降电压时，二极管导通。 结果，振铃中的正侧的峰值波电流被限制为二极管的正向压降电压。

公开(公告)号：US08598918B2

公开(公告)日：2013-12-03

申请号：US13097229

申请日：2011-04-29

申请人： Youichirou Suzuki ,  Noboru Maeda ,  Yasuhiro Fukagawa ,  Takahisa Koyasu ,  Masakiyo Horie ,  Tomohisa Kishigami

发明人： Youichirou Suzuki ,  Noboru Maeda ,  Yasuhiro Fukagawa ,  Takahisa Koyasu ,  Masakiyo Horie ,  Tomohisa Kishigami

IPC分类号： H03B1/00 ,  H03K3/00

CPC分类号： H03K17/0822 ,  H03K17/284

摘要： When a transmission signal is detected as having been changed from a high level to a low level, two transmission lines are connected for only a predetermined time through a diode by a first transistor and a second transistor. The diode is arranged such that its forward direction is from a high-side transmission line to a low-side transmission line. The diode turns on, when a potential of the high-side transmission line becomes higher than that of the low-side transmission line by ringing and a potential difference therebetween exceeds a forward drop voltage of the diode. As a result, a peak wave level of a positive side in the ringing is limited to the forward drop voltage of the diode.

摘要翻译： 当检测到发送信号已经从高电平变为低电平时，通过第一晶体管和第二晶体管通过二极管连接两条传输线只有预定的时间。 二极管被布置成使其正向方向从高侧传输线到低侧传输线。 当高侧传输线的电位通过振铃变得比低侧传输线的电位高，并且其间的电位差超过二极管的正向压降电压时，二极管导通。 结果，振铃中的正侧的峰值波电流被限制为二极管的正向压降电压。

公开(公告)号：US08098084B2

公开(公告)日：2012-01-17

申请号：US12902255

申请日：2010-10-12

申请人： Youichirou Suzuki ,  Noboru Maeda ,  Shigeki Takahashi ,  Takahisa Koyasu ,  Kazuyoshi Nagase ,  Tomohisa Kishigami

发明人： Youichirou Suzuki ,  Noboru Maeda ,  Shigeki Takahashi ,  Takahisa Koyasu ,  Kazuyoshi Nagase ,  Tomohisa Kishigami

IPC分类号： H03K19/094 ,  H03K19/20 ,  H03K19/003 ,  H03K3/00 ,  H03B1/00

CPC分类号： H04L25/0278 ,  H04L25/028

摘要： A transmission apparatus for differential communication includes a driver bridge circuit and a pair of noise protection circuits. The driver bridge circuit includes four output devices that are independently connected between each of a pair of transmission lines and a power line or a ground line. Each noise protection circuit is provided to a corresponding transmission lines. Each noise protection circuit includes a ground potential detector and an impedance controller. The ground potential detector detects a potential of the corresponding transmission line with respect to the ground line. The impedance controller causes an impedance of the corresponding transmission line with respect to the ground line to become equal to an impedance of the other transmission line with respect to the ground line, when the detected potential becomes outside a predetermined potential range.

摘要翻译： 用于差分通信的传输装置包括驱动器桥电路和一对噪声保护电路。 驱动器桥电路包括独立地连接在一对传输线中的每一个与电源线或接地线之间的四个输出装置。 每个噪声保护电路提供给相应的传输线。 每个噪声保护电路包括接地电位检测器和阻抗控制器。 接地电位检测器检测相对于接地线的相应传输线的电位。 当检测到的电位超出预定电位范围时，阻抗控制器使对应的传输线相对于接地线的阻抗变得等于另一传输线相对于接地线的阻抗。

公开(公告)号：US20110169547A1

公开(公告)日：2011-07-14

申请号：US13004916

申请日：2011-01-12

申请人： Youichirou Suzuki ,  Noboru Maeda ,  Hiroyuki Obata ,  Masakiyo Horie ,  Tomohisa Kishigami

发明人： Youichirou Suzuki ,  Noboru Maeda ,  Hiroyuki Obata ,  Masakiyo Horie ,  Tomohisa Kishigami

IPC分类号： H03K17/16

CPC分类号： H03K17/16 ,  H03K19/00361 ,  H04L25/028

摘要： A ringing suppression circuit for a communication circuit that performs communication through a transmission line includes a high side switch connected between a high potential reference point and a high side line of the transmission line, a low side switch connected between a low potential reference point and a low side line of the transmission line, and a ringing suppression section. The ringing suppression section turns on the high side switch based on a difference between a potential of the high side line and a potential applied to a control terminal of the high side switch. The ringing suppression section turns on the low side switch based on a difference between a potential of the low side line and potential applied to a control terminal of the low side switch.

摘要翻译： 用于通过传输线进行通信的通信电路的振铃抑制电路包括连接在传输线的高电位参考点和高侧线之间的高侧开关，连接在低电位参考点和 传输线的低边线，以及振铃抑制部。 振铃抑制部分基于高侧线路的电位和施加到高侧开关的控制端子的电位之间的差异来接通高侧开关。 振铃抑制部分基于低边线路的电位和施加到低侧开关的控制端子的电位之间的差来打开低侧开关。

公开(公告)号：US08427220B2

公开(公告)日：2013-04-23

申请号：US13004916

申请日：2011-01-12

申请人： Youichirou Suzuki ,  Noboru Maeda ,  Hiroyuki Obata ,  Masakiyo Horie ,  Tomohisa Kishigami

发明人： Youichirou Suzuki ,  Noboru Maeda ,  Hiroyuki Obata ,  Masakiyo Horie ,  Tomohisa Kishigami

IPC分类号： H03L5/00

CPC分类号： H03K17/16 ,  H03K19/00361 ,  H04L25/028

摘要： A ringing suppression circuit for a communication circuit that performs communication through a transmission line includes a high side switch connected between a high potential reference point and a high side line of the transmission line, a low side switch connected between a low potential reference point and a low side line of the transmission line, and a ringing suppression section. The ringing suppression section turns on the high side switch based on a difference between a potential of the high side line and a potential applied to a control terminal of the high side switch. The ringing suppression section turns on the low side switch based on a difference between a potential of the low side line and potential applied to a control terminal of the low side switch.

摘要翻译： 用于通过传输线进行通信的通信电路的振铃抑制电路包括连接在传输线的高电位参考点和高侧线之间的高侧开关，连接在低电位参考点和 传输线的低边线，以及振铃抑制部。 振铃抑制部分基于高侧线路的电位和施加到高侧开关的控制端子的电位之间的差异来接通高侧开关。 振铃抑制部分基于低边线路的电位和施加到低侧开关的控制端子的电位之间的差来打开低侧开关。

公开(公告)号：US08320471B2

公开(公告)日：2012-11-27

申请号：US12923397

申请日：2010-09-20

申请人： Noboru Maeda ,  Youichirou Suzuki ,  Shigeki Takahashi ,  Kazuyoshi Nagase ,  Takahisa Koyasu

发明人： Noboru Maeda ,  Youichirou Suzuki ,  Shigeki Takahashi ,  Kazuyoshi Nagase ,  Takahisa Koyasu

IPC分类号： H04B3/00

CPC分类号： H04L25/0272

摘要： In a transmission device for differential communication, a first cathode-side element part is coupled between a first communication line and a cathode-side power supply line, a second cathode-side element part is coupled between a second communication line and the cathode-side power supply line, a first anode-side element part is coupled between the first communication line and an anode-side power supply line, and a second anode-side element part is coupled between the second communication line and the anode-side power supply line. A driving portion drives the element parts based on transmission data input from an outside. A target potential generating portion generates target potentials of the element parts based on potentials of the first communication line and the second communication line.

摘要翻译： 在用于差分通信的传输装置中，第一阴极侧元件部分耦合在第一通信线路和阴极侧电源线之间，第二阴极侧元件部分耦合在第二通信线路和阴极侧部件之间 电源线，第一阳极侧元件部分耦合在第一通信线路和阳极侧电源线之间，第二阳极侧元件部分耦合在第二通信线路和阳极侧电源线路之间 。 驱动部根据从外部输入的传输数据来驱动元件部。 目标电势产生部分基于第一通信线路和第二通信线路的电位产生元件部分的目标电位。

公开(公告)号：US08229032B2

公开(公告)日：2012-07-24

申请号：US12389691

申请日：2009-02-20

申请人： Youichirou Suzuki ,  Noboru Maeda ,  Shigeki Takahashi ,  Koji Kondo ,  Kazuyoshi Nagase ,  Takahisa Koyasu

发明人： Youichirou Suzuki ,  Noboru Maeda ,  Shigeki Takahashi ,  Koji Kondo ,  Kazuyoshi Nagase ,  Takahisa Koyasu

IPC分类号： H03K9/00

CPC分类号： H04M3/18 ,  H04L25/0272 ,  H04L25/0292 ,  H04L25/085

摘要： A signal receiver includes: a receiving circuit that receives a differential signal via a transmission line, which includes a pair of signal wires for transmitting the differential signal; and an impedance control circuit that controls an input impedance so as to reduce a common mode noise. The impedance control circuit includes a detection element for detecting at least one of a voltage, a current and an electric power of the common mode noise. The impedance control circuit controls the input impedance in accordance with change of the at least one of the voltages the current and the electric power of the common mode noise.

摘要翻译： 信号接收机包括：接收电路，经由传输线接收差分信号，该传输线包括用于发送差分信号的一对信号线; 以及阻抗控制电路，其控制输入阻抗以减小共模噪声。 阻抗控制电路包括用于检测共模噪声的电压，电流和电功率中的至少一个的检测元件。 阻抗控制电路根据共模噪声的电流和电功率的至少一个电压的变化来控制输入阻抗。

公开(公告)号：US20110135014A1

公开(公告)日：2011-06-09

申请号：US12923397

申请日：2010-09-20

申请人： Noboru Maeda ,  Youichirou Suzuki ,  Shigeki Takahashi ,  Kazuyoshi Nagase ,  Takahisa Koyasu

发明人： Noboru Maeda ,  Youichirou Suzuki ,  Shigeki Takahashi ,  Kazuyoshi Nagase ,  Takahisa Koyasu

IPC分类号： H04B3/00

CPC分类号： H04L25/0272

摘要： In a transmission device for differential communication, a first cathode-side element part is coupled between a first communication line and a cathode-side power supply line, a second cathode-side element part is coupled between a second communication line and the cathode-side power supply line, a first anode-side element part is coupled between the first communication line and an anode-side power supply line, and a second anode-side element part is coupled between the second communication line and the anode-side power supply line. A driving portion drives the element parts based on transmission data input from an outside. A target potential generating portion generates target potentials of the element parts based on potentials of the first communication line and the second communication line.

摘要翻译： 在用于差分通信的传输装置中，第一阴极侧元件部分耦合在第一通信线路和阴极侧电源线之间，第二阴极侧元件部分耦合在第二通信线路和阴极侧部件之间 电源线，第一阳极侧元件部分耦合在第一通信线路和阳极侧电源线之间，第二阳极侧元件部分耦合在第二通信线路和阳极侧电源线路之间 。 驱动部根据从外部输入的传输数据来驱动元件部。 目标电势产生部分基于第一通信线路和第二通信线路的电位产生元件部分的目标电位。

公开(公告)号：US08160531B2

公开(公告)日：2012-04-17

申请号：US12382139

申请日：2009-03-10

申请人： Youichirou Suzuki ,  Noboru Maeda ,  Takahisa Koyasu ,  Koji Kondo ,  Shigeki Takahashi

发明人： Youichirou Suzuki ,  Noboru Maeda ,  Takahisa Koyasu ,  Koji Kondo ,  Shigeki Takahashi

IPC分类号： H04B1/18

CPC分类号： H04L25/12 ,  H04L25/0272 ,  H04L25/0278 ,  H04L25/0294

摘要： A receiving device is provided capable of avoiding reception of unnecessary energy when a signal waveform actually changes on a receiving side. An impedance control circuit includes a sensing unit to sense one or more of a voltage, current, or power of a signal to be received by a receiving circuit. The impedance control unit varies an input impedance according to the change in the sensed one or more quantities so that the received signal will be reflected. Thus the excess energy of the signal is reflected and fed to any other receiving circuit achieving stable communications.

摘要翻译： 提供一种接收装置，其能够在信号波形在接收侧实际改变时避免接收不必要的能量。 阻抗控制电路包括感测单元，用于感测由接收电路接收的信号的电压，电流或功率中的一个或多个。 阻抗控制单元根据感测的一个或多个量的变化来改变输入阻抗，使得接收到的信号将被反射。 因此，信号的过剩能量被反射并馈送到实现稳定通信的任何其它接收电路。

公开(公告)号：US08593202B2

公开(公告)日：2013-11-26

申请号：US13471559

申请日：2012-05-15

申请人： Hiroyuki Mori ,  Hiroyuki Obata ,  Masahiro Kitagawa ,  Tomohisa Kishigami ,  Tomoyuki Koike ,  Noboru Maeda ,  Youichirou Suzuki

发明人： Hiroyuki Mori ,  Hiroyuki Obata ,  Masahiro Kitagawa ,  Tomohisa Kishigami ,  Tomoyuki Koike ,  Noboru Maeda ,  Youichirou Suzuki

IPC分类号： H03K5/08

CPC分类号： H04L25/026

摘要： An inter-line switching element formed of a MOSFET is provided between a pair of signal lines. When the level of a differential signal changes from high to low, a control circuit turns on the FET for a fixed period thereby to suppress ringing by decreasing the impedance between the signal lines when the level of the differential signal transitions, and causing the energy of the distortion of the differential signal waveform to be absorbed by the on-resistance of the FET.

摘要翻译： 在一对信号线之间设置由MOSFET构成的线间开关元件。 当差分信号的电平从高变为低时，控制电路使FET持续一定时间，从而通过在差分信号的电平转变时减小信号线之间的阻抗来抑制振铃，并且使能 差分信号波形的失真将被FET的导通电阻吸收。