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1. 发明授权

US10693451B2 Ringing suppressor circuit 有权
公开(公告)号：US10693451B2
公开(公告)日：2020-06-23
申请号：US16273810
申请日：2019-02-12
申请人： SOKEN, INC. , DENSO CORPORATION
发明人： Youhei Sekiya , Hiroyuki Mori , Tomohisa Kishigami
IPC分类号： H03K17/16 , H04L25/02 , H04B3/42 , H03H11/24 , H04L12/40
摘要： A ringing suppressor circuit is connected to a differential signal transmission line that includes a high potential signal line and low potential signal line pair for transmitting high and low level differential signals, and includes a ringing suppressor and a stopper. When the differential signal changes to a high level, the ringing suppressor suppresses ringing by lowering the impedance between the signal lines by turning ON of a switching element. When a differential signal voltage drops below a voltage lowering determination voltage, the stopper stops the impedance lowering function of the ringing suppressor by turning OFF another switching element.

2. 发明授权

US10224925B2 Communication node 有权
公开(公告)号：US10224925B2
公开(公告)日：2019-03-05
申请号：US15741075
申请日：2016-06-08
申请人： DENSO CORPORATION , SOKEN, INC.
发明人： Hiroyuki Mori , Takuya Honda , Tomohisa Kishigami , Hirofumi Isomura
IPC分类号： H03K17/16 , H04L25/02 , H04L25/12
摘要： A communication node is connected to a transmission line which transmits a differential signal changeable between a high level and a low level and has a high potential signal line and a low potential signal line as a pair of signal lines. The communication node includes: an inter-line potential detector that detects an intermediate potential between the pair of signal lines; a node potential detector that detects an intermediate potential of an operation power source voltage which is supplied to the communication node; and a voltage adjuster that detects a difference between the intermediate potential detected by the inter-line potential detector and the intermediate potential detected by the node potential detector, and adjusts the operation power source voltage in accordance with the difference.

3. 发明授权

US08861621B2 Receiver circuit 有权
标题翻译：接收电路
公开(公告)号：US08861621B2
公开(公告)日：2014-10-14
申请号：US13973203
申请日：2013-08-22
申请人： Denso Corporation
发明人： Hiroyuki Mori , Naoki Kamikawa , Masayoshi Satake , Tomohisa Kishigami , Tomoyuki Koike
IPC分类号： H04B3/00 , H04B1/10
CPC分类号： H04B1/10 , H04B3/20
摘要： In a receiver circuit, a binary signal is generated based on a signal level of a received signal that has been received via a transmission line from a driver of a transmitter circuit. Then, a first stable state and a second stable state are detected based on a reference signal whose signal level changes in accordance with the received signal. In the first stable state, the received signal is stable at a first signal level. In the second stable state, the received signal is stable at a second signal level. When the first stable state is detected and the received signal is changed from the first signal level into the second signal level, the generated binary signal is retained at a signal level corresponding to the second signal level, until the second stable state is detected.
摘要翻译：在接收机电路中，基于已经经由发射机电路的驱动器的传输线接收的接收信号的信号电平来生成二进制信号。然后，基于信号电平根据接收信号而改变的参考信号来检测第一稳定状态和第二稳定状态。在第一稳定状态下，接收信号在第一信号电平下稳定。在第二稳定状态下，接收信号在第二信号电平下稳定。当检测到第一稳定状态并且将接收信号从第一信号电平改变为第二信号电平时，所生成的二进制信号保持在与第二信号电平相对应的信号电平，直到检测到第二稳定状态。

4. 发明授权

US10454528B2 Relay device for relaying data between communication cables 有权
公开(公告)号：US10454528B2
公开(公告)日：2019-10-22
申请号：US15820495
申请日：2017-11-22
申请人： SOKEN, INC. , DENSO CORPORATION
发明人： Youhei Sekiya , Hiroyuki Mori , Yoshifumi Kaku , Hironobu Akita
IPC分类号： H04B3/36 , H04B3/23 , H04B7/185 , B60R16/023
摘要： A relay device for data between communication cables having a signal line in full duplex communication, includes: communication units connected to the communication cables; and a main controller executing a relay process of the data. Each communication unit includes: an input/output unit of an analog signal; an analog/digital converter converting the analog signal into a digital signal; a generator generating another digital signal based on another analog signal input to another communication unit; and an echo canceller calculating a filter coefficient based on the other digital signal and the digital signal, and executing a cancellation process of removing a component derived from the other digital signal from the digital signal according to the filter coefficient. The communication unit or the main control unit includes a sign determination unit determining based on a time change of the filter coefficient whether a sign of disconnection exists in the signal line.

5. 发明申请

US20130241578A1 CAPACITANCE TYPE SENSOR 审中-公开
标题翻译：电容式传感器
公开(公告)号：US20130241578A1
公开(公告)日：2013-09-19
申请号：US13792987
申请日：2013-03-11
申请人： DENSO CORPORATION
发明人： Masayoshi Satake , Hiroyuki Mori , Hajime Nakagawa
IPC分类号： G01R27/26
CPC分类号： G01R27/2605 , B60N2/002 , B60R21/01532 , H03K17/955 , H03K2017/9615 , H03K2217/960765
摘要： A capacitance type sensor includes a detection electrode, a reference electrode, and a sub-reference electrode for distinguishingly detecting a detection object. The sub-reference electrode has a reference voltage applied thereto and is displaceable relative to the detection electrode due to a pressure exerted from the detection object. A voltage application device applies a detection voltage to form an electric field in a space defined with the reference electrode device. A capacitance detector of the sensor detects a first capacitance and a second capacitance, and a detection unit of the sensor distinguishingly detects the detection object based on the first capacitance and the second capacitance. The first capacitance is measured between the detection electrode and the reference electrode, and the second capacitance is measured between the detection electrode and the sub-reference electrode.
摘要翻译：电容式传感器包括检测电极，参考电极和用于区别检测检测对象的子参考电极。子参考电极具有施加到其上的参考电压，并且由于从检测对象施加的压力而相对于检测电极可移动。电压施加装置施加检测电压以在由参考电极装置限定的空间中形成电场。传感器的电容检测器检测第一电容和第二电容，并且传感器的检测单元基于第一电容和第二电容区分检测检测对象。在检测电极和参考电极之间测量第一电容，并且在检测电极和辅助参考电极之间测量第二电容。

6. 发明授权

US10164620B1 Ringing suppression circuit 有权
公开(公告)号：US10164620B1
公开(公告)日：2018-12-25
申请号：US15748749
申请日：2016-08-25
申请人： DENSO CORPORATION , SOKEN, INC.
发明人： Takuya Honda , Hirofumi Isomura , Tomohisa Kishigami , Hiroyuki Mori , Yasuhiro Mori , Yuki Horii
IPC分类号： H03K5/08 , H03K5/1252 , H03K3/037 , H04B3/20 , H03K5/24 , H03K5/00
摘要： A ringing suppression circuit, which is connected to a transmission line for transmitting a differential signal changeable between a high level and a low level in a binary level through a pair of a high potential side signal line and a low potential side signal line, and suppresses ringing that occurs in association with transmission of the differential signal, includes: an inter-line switching element that is connected to the pair of the high potential side signal line and the low potential side signal line; and a control unit that turns on the inter-line switching element and fixes an on state when detecting that the differential signal changes from the high level to the low level, and releases the on state after a predetermined time is measured and elapsed.

7. 发明授权

US10038459B2 Network control device 有权
公开(公告)号：US10038459B2
公开(公告)日：2018-07-31
申请号：US15098439
申请日：2016-04-14
申请人： NIPPON SOKEN, INC. , DENSO CORPORATION
发明人： Hiroyuki Mori , Youhei Sekiya , Yoshifumi Kaku , Shogo Akasaki
IPC分类号： G06F1/32 , H04B1/04 , H04L12/10 , H04W52/02 , H04L27/12
CPC分类号： H04B1/04 , G06F1/3203 , H04L12/10 , H04L27/12 , H04W52/0216 , H04W52/0219 , H04W52/0229 , Y02D70/00
摘要： A network control device includes a communicator performing communications via a transmission line at a preset transmission speed in a wake-up mode, a low frequency attenuator attenuating a low frequency component in a transmission signal having a low transmission speed that is lower than the preset transmission speed at a position between the transmission line and the communicator to receive and transmit the transmission signal to and from the communicator, and a wake-up controller receiving and transmitting a wake-up signal for transitioning from a sleep mode to the wake-up mode, at a transmission line side position of the low frequency attenuator, where the wake-up signal at a low frequency band is subject to attenuation by the low frequency attenuator, for a selective wake-up of a network node via the transmission line for network communications.

8. 发明授权

US09930615B2 Relay device 有权
公开(公告)号：US09930615B2
公开(公告)日：2018-03-27
申请号：US15235324
申请日：2016-08-12
申请人： DENSO CORPORATION , NIPPON SOKEN, INC.
发明人： Youhei Sekiya , Hiroyuki Mori , Yoshifumi Kaku , Shogo Akasaki
IPC分类号： H04B3/36 , H04W52/02
CPC分类号： H04W52/0206 , H04B3/36 , H04W52/0229 , Y02D70/00
摘要： A relay device includes a communication signal relay unit for relaying a communication signal and a wake-up signal relay unit for relaying, by bypassing the communication signal relay unit, a wake-up signal that is transmitted using a frequency band which is lower than a communication frequency band used in transmitting the communication signal. The communication signal relay unit includes a low frequency wave attenuation unit for attenuating a signal with a frequency band lower than the communication frequency band. The wake-up signal relay unit includes a wake-up signal filter unit for passing through a signal with a frequency band lower than the communication frequency band.

9. 发明授权

US09413566B2 Signal transmission circuit 有权
标题翻译：信号传输电路
公开(公告)号：US09413566B2
公开(公告)日：2016-08-09
申请号：US14812447
申请日：2015-07-29
申请人： DENSO CORPORATION , NIPPON SOKEN, INC.
发明人： Hiroyuki Mori , Keiji Shigeoka , Yoshifumi Kaku , Shogo Akasaki
IPC分类号： H04L25/03 , H04L25/02
CPC分类号： H04L25/0278 , H04L25/029 , H04L25/0292
摘要： A signal transmission circuit includes a transceiver, an impedance adjustment circuit, a first control circuit and a second control circuit. The impedance adjustment circuit realizes a low impedance state and a normal state of the transmission line. The first control circuit controls the impedance adjustment circuit to realize the low impedance state for a fixed period that is shorter than a width of one bit, when a change of a signal level on the transmission line is detected. The second control circuit controls the impedance adjustment circuit according to a transmission data transmitted from the transceiver, when detecting that a communication frame wins an arbitration by comparing the transmission data and the received data, to realize the low impedance state in an entire period where the signal level on the transmission line is recessive until transmission of the communication frame ends.
摘要翻译：信号传输电路包括收发器，阻抗调节电路，第一控制电路和第二控制电路。阻抗调整电路实现传输线的低阻抗状态和正常状态。当检测到传输线上的信号电平的变化时，第一控制电路控制阻抗调节电路实现比一个位的宽度短的固定周期的低阻抗状态。第二控制电路根据从收发器发送的发送数据来控制阻抗调整电路，当检测到通信帧通过比较发送数据和接收到的数据而获得仲裁时，在整个周期内实现低阻抗状态传输线上的信号电平是隐性的，直到通信帧的传输结束为止。

10. 发明授权

US09270505B2 Communication system 有权
标题翻译：通讯系统
公开(公告)号：US09270505B2
公开(公告)日：2016-02-23
申请号：US14669093
申请日：2015-03-26
申请人： DENSO CORPORATION , NIPPON SOKEN, INC.
发明人： Hiroyuki Mori , Keiji Shigeoka , Hideki Kashima , Tomohisa Kishigami
IPC分类号： H02K7/08 , H04L25/49 , H04B3/54
CPC分类号： H04L25/4902 , H04B3/54
摘要： Each of nodes in a communication system includes a pull-up circuit connected between a power source and a transmission line and a switching portion connecting and disconnecting the transmission line and a ground line. One of the nodes is a master node, and the others of the nodes are slave nodes. The driver circuits are driven so that the master node constantly outputs the transmission code of logic 1 and the slave node outputting the transmission code of logic 0 extends the width of the low level of the transmission code of logic 1 on the transmission line. The master node further includes a current limiting section limiting an electric current that flows to the transmission line via the pull-up circuit based on at least a signal level of the transmission line.
摘要翻译：通信系统中的每个节点包括连接在电源和传输线之间的上拉电路以及连接和断开传输线和接地线的切换部分。其中一个节点是主节点，其他节点是从节点。驱动电路被驱动，使得主节点不断输出逻辑1的发送代码，并且输出逻辑0的发送代码的从节点在传输线上扩展逻辑1的发送代码的低电平的宽度。主节点还包括电流限制部分，其基于至少传输线的信号电平，限制经由上拉电路流到传输线的电流。

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