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US08576704B2 Communication system, communication device, integrated circuit, and communication method 有权
通信系统，通信设备，集成电路和通信方式

  • Patent Title: Communication system, communication device, integrated circuit, and communication method
  • Patent Title (中): 通信系统，通信设备，集成电路和通信方式
  • Application No.: US13059263
    Application Date: 2010-03-17
  • Publication No.: US08576704B2
    Publication Date: 2013-11-05
  • Inventor: Shinichiro Nishioka
  • Applicant: Shinichiro Nishioka
  • Applicant Address: JP Osaka
  • Assignee: Panasonic Corporation
  • Current Assignee: Panasonic Corporation
  • Current Assignee Address: JP Osaka
  • Agency: Wenderoth, Lind & Ponack, L.L.P.
  • Priority: JP2009-098678 20090415
  • International Application: PCT/JP2010/001906 WO 20100317
  • International Announcement: WO2010/119616 WO 20101021
  • Main IPC: G01R31/08
  • IPC: G01R31/08
Communication system, communication device, integrated circuit, and communication method
Abstract:
A communication system includes communication devices that are connected with one another in a ring via a serial link. In the communication system, one communication device issues a standby packet for causing each communication device connected to a part of the link that is not involved with data transfer to switch to standby mode. Each communication device connected to this part of the link relays the standby packet from an immediately preceding communication device in the link to an immediately succeeding communication device in the link, and after relaying the standby packet, causes the own device to switch to standby mode. Further, a communication device that performs communication with said one communication device issues a loopback packet for causing each communication device connected to a part of the link that is involved with data transfer to switch to loopback mode. Each communication device connected to this part of the link relays the loopback packet from an immediately preceding communication device in the link to an immediately succeeding communication device in the link, and after relaying the loopback packet, causes the own device to switch to loopback mode.
Abstract(Chinese):

通信系统包括通过串行链路在环中彼此连接的通信设备。 在通信系统中，一个通信设备发出备用分组，使得连接到不涉及数据传输的链路的一部分的每个通信设备切换到待机模式。 连接到链路的这一部分的每个通信设备将链路中的紧接在前的通信设备的备用分组中继到链路中紧接着的通信设备，并且在中继备用分组之后，使得自己的设备切换到待机模式。 此外，与所述一个通信设备进行通信的通信设备发出环回分组，使得连接到涉及数据传输的链路的一部分的每个通信设备切换到环回模式。 与链路的这一部分连接的每个通信装置将链路中的紧急通信装置的环回分组中继到链路中的紧随其后的通信装置，并且在中继环回分组之后，使得本装置切换到环回模式。

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