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1. 发明申请

US20150295738A1 COMMUNICATION SYSTEM 有权
标题翻译：通讯系统
公开(公告)号：US20150295738A1
公开(公告)日：2015-10-15
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： 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。

2. 发明申请

US20220179663A1 NETWORK SYSTEM 有权
公开(公告)号：US20220179663A1
公开(公告)日：2022-06-09
申请号：US17537709
申请日：2021-11-30
申请人： DENSO CORPORATION
发明人： Akira TADA , Tomohisa KISHIGAMI
IPC分类号： G06F9/4401 , H04L12/10
摘要： A network system includes at least one transmission path and a plurality of terminal devices each connected to the transmission path. Each of the terminal devices includes a transceiver, a startup processing unit, and a switching unit. The transceiver is configured to operate either one of a first standby unit and a second standby unit according to a switching instruction. The switching unit is configured to output the switching instruction to the transceiver to operate the second standby unit when a transmission path empty period lasts for a predetermined preparation time or more after a non-designation period has lasted for a predetermined operation determination time or more.

3. 发明申请

US20180041358A1 COMMUNICATIONS DEVICE 审中-公开
公开(公告)号：US20180041358A1
公开(公告)日：2018-02-08
申请号：US15498861
申请日：2017-04-27
申请人： DENSO CORPORATION
发明人： Tomohisa KISHIGAMI , Shuichi NAKAMURA
IPC分类号： H04L12/40 , H04B1/40 , H04L1/24
CPC分类号： H04L12/40 , H04B1/40 , H04L1/248 , H04L12/40045 , H04L43/0823 , H04L2012/40215
摘要： In a communication device, when an enabling signal is at a high level and a transmit data is at a high level, that is, in a recessive period, both transistors turn off and both transistors turn off. Thus, potentials of signal lines are determined by power supply from a second transmitting part to a communications network. When an error frame arises in this state, that is, transistors in the other ECU turn on, excessive currents flow the signal lines. When current monitoring circuits detect error currents, an error signal is changed to a high level.

4. 发明申请

US20160065298A1 RELAY APPARATUS 有权
标题翻译：继电器
公开(公告)号：US20160065298A1
公开(公告)日：2016-03-03
申请号：US14821879
申请日：2015-08-10
申请人： DENSO CORPORATION
发明人： Tetsuo NAKAGAWA , Tomohisa KISHIGAMI
IPC分类号： H04B7/155 , H04L12/931 , H04B1/3822
CPC分类号： H04B7/15528 , H04B1/3822 , H04B7/15542
摘要： A relay apparatus provided to a vehicle, performing first data communication with a first communication apparatus arranged outside the vehicle, and performing at least second data communication with multiple second communication apparatuses provided to the vehicle is provided. The relay apparatus includes a permission determination portion and an initiation switch portion. The permission determination portion determines whether first data communication between the first communication apparatus and a target second communication apparatus is permitted. The permission determination portion receives the first communication frame from the first communication apparatus through a connection switch portion determining a connection destination according to a control signal. The initiation switch portion outputs to the connection switch portion, the control signal designating the target second communication apparatus as the connection destination of the first communication apparatus.
摘要翻译：提供给车辆的中继装置，与布置在车辆外部的第一通信装置进行第一数据通信，并且与提供给车辆的多个第二通信装置进行至少第二数据通信。中继装置包括许可确定部分和启动开关部分。许可确定部分确定是否允许第一通信装置和目标第二通信装置之间的第一数据通信。许可确定部分通过根据控制信号确定连接目的地的连接开关部分从第一通信设备接收第一通信帧。启动开关部分向连接开关部分输出指定目标第二通信装置的控制信号作为第一通信装置的连接目的地。

5. 发明申请

US20140169419A1 TRANSCEIVER AND COMMUNICATION APPARATUS TRANSMITTING AND RECEIVING DATA ENCODED BY TRANSMISSION CODE 有权
标题翻译：收发机和通信设备发送和接收传输码编码的数据
公开(公告)号：US20140169419A1
公开(公告)日：2014-06-19
申请号：US14134338
申请日：2013-12-19
申请人： ANDEN CO., LTD. , DENSO CORPORATION
发明人： Hideki KASHIMA , Tomohisa KISHIGAMI , Naoji KANEKO , Nobutomo TAKAGI
IPC分类号： H04B1/40
CPC分类号： H04B1/40 , B60R16/03 , H04J3/0697 , H04L7/033 , H04L12/4035 , H04L25/03834 , H04L25/4902 , H04L2012/40215 , H04L2012/40273
摘要： A transceiver that transmits and receives data used in a communication system, in which the data is encoded by a transmission line code and a signal level of the transmission code changes at a predetermined transition timing in a bit-duration. The transceiver includes: a clock generator that generates an internal clock used for internal circuits; a timing generator that generates, by using the internal clock generated by the clock generator, a timing signal synchronized to a reference clock supplied externally; an encoding circuit that encodes, by using the timing signal generated by the timing generator, a transmission data which is synchronized to the reference clock to be the transmission line code; and a waveform shaping unit that performs a waveform shaping of a waveform at the predetermined is transition timing of the transmission data to be based on the reference clock.
摘要翻译：发送和接收在通信系统中使用的数据的收发器，其中数据由传输线码编码，并且传输码的信号电平在比特持续时间内在预定的转换定时改变。收发器包括：产生用于内部电路的内部时钟的时钟发生器; 定时发生器，其通过使用由时钟发生器产生的内部时钟产生与外部提供的参考时钟同步的定时信号; 编码电路，通过使用由定时发生器产生的定时信号，将与基准时钟同步的发送数据编码为传输线路码; 以及在预定的波形整形处理波形的波形整形单元是基于参考时钟的发送数据的转换定时。

6. 发明申请

US20220141051A1 RELAY DEVICE 有权
公开(公告)号：US20220141051A1
公开(公告)日：2022-05-05
申请号：US17510491
申请日：2021-10-26
申请人： DENSO CORPORATION
发明人： Hisashi MIYOSHI , Tomohisa KISHIGAMI
IPC分类号： H04L12/40 , H04B3/36
摘要： A relay device relays a management frame between nodes connected to mutually different communication buses. The relay device includes (i) communicator units provided respectively to correspond to the communication buses, and (ii) communication controller units provided respectively to correspond to the communicator units. The communication controller unit respectively includes a corresponding transmission buffer configured to store the management frame, which is to be transmitted from the communicator unit corresponding to the communication controller unit. In response to determining that the management frame is retained in the transmission buffer corresponding to the communication controller unit, the communication controller unit transmits the management frame, which is received at a present time and stored in the transmission buffer, from the communicator unit corresponding to the communication controller unit.

7. 发明申请

US20200287579A1 RINGING SUPPRESSION CIRCUIT 审中-公开
公开(公告)号：US20200287579A1
公开(公告)日：2020-09-10
申请号：US16878673
申请日：2020-05-20
申请人： DENSO CORPORATION
发明人： Takuya HONDA , Tomohisa KISHIGAMI
IPC分类号： H04B1/04 , H03K17/16
摘要： A control unit of a suppression circuit turns on an inter-line switching element and maintains an ON state upon detection of a change in the level of a differential signal from high level to low level, and cancels the ON state after a predetermined period of time is measured. A continuous activation prevention unit sets a predetermined mask time period from the time of turning on the inter-line switching element, and masking is performed to prevent the control unit from detecting a change in the level of the differential signal from the high level to the low during the mask time period.

8. 发明申请

US20190179390A1 POE Power Supply System 审中-公开
公开(公告)号：US20190179390A1
公开(公告)日：2019-06-13
申请号：US16211337
申请日：2018-12-06
申请人： DENSO CORPORATION
发明人： Kunimitsu HANDA , Tomohisa KISHIGAMI
IPC分类号： G06F1/26 , H04L12/10 , H04L12/12 , G06F1/3234
摘要： A PoE power supply system includes a cable, a power supply device, a power reception device, and a request switch. The power supply device includes a power supply block and a power supply control block. The power supply block is configured to enable a connection state between the power supply device and the cable to be switched. The connection state includes a power supply state in which the power supply device is supplied with power required for operating the power supply device via the cable, and a standby state in which the power supply request signal is receivable by the power supply device via the cable. The power supply control block is configured to switch the connection state to the power supply state in response to receiving a power supply request signal output from the request switch and requesting the power supply device to resume supplying the power.

9. 发明申请

US20180367127A1 RINGING SUPPRESSION CIRCUIT 审中-公开
公开(公告)号：US20180367127A1
公开(公告)日：2018-12-20
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： H03K5/1252 , H03K3/037 , H04B3/20
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.

10. 发明申请

US20180041361A1 TRANSMISSION CIRCUIT 审中-公开
公开(公告)号：US20180041361A1
公开(公告)日：2018-02-08
申请号：US15662535
申请日：2017-07-28
申请人： DENSO CORPORATION
发明人： Tomohisa KISHIGAMI , Shuichi NAKAMURA
IPC分类号： H04L12/46 , H04L25/02 , H04J3/22 , H03F3/24 , H04B3/54
CPC分类号： H04L12/4625 , H03F3/24 , H04B3/542 , H04B3/548 , H04B2203/5408 , H04B2203/547 , H04J3/22 , H04L12/40045 , H04L25/0272 , H04L2012/40215
摘要： A transmission circuit includes a first transmitter and a second transmitter. The first transmitter turns OFF first transistors when a transmission data is in a high level, and turns ON the first transistors when the transmission data is in a low level. When a permission signal is in the high level, the second transmitter turns ON the second transistors when the transmission data is in the high level, and turns OFF the second transistors when the transmission data is in the low level. Diodes are set to suppress an amplitude of a differential signal in an ON time of the second transistors more than an amplitude of a differential signal in an ON time of the first transistors, to suppress ringing and radiation noise.

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