ELECTRIC DEVICE
    3.
    发明公开
    ELECTRIC DEVICE 审中-公开

    公开(公告)号:EP3855874A1

    公开(公告)日:2021-07-28

    申请号:EP19863175.6

    申请日:2019-09-18

    申请人: NEC Corporation

    发明人: KAMEDA Shingo

    摘要: [Problem] To suppress the number of man-hours required to handle design changes accompanying a change in heat generation in an internal unit stored inside an electric device.
    [Solution] The present invention includes: at least one internal unit, which is a heat generating body and has a prescribed cross-sectional external shape; at least one heat conduction unit, which is a good conductor of heat and has a prescribed cross-sectional external shape; and a device housing in which two or more of the internal unit and the heat conduction unit can be stored in a state of being adjacent to each other with the prescribed cross-sectional external shapes thereof overlapping each other, the device housing thermally connecting to the stored internal unit or the stored heat conduction unit.

    RELAY DEVICE, MONITORING SYSTEM AND MONITORING INFORMATION TRANSMISSION METHOD

    公开(公告)号:EP3480972A1

    公开(公告)日:2019-05-08

    申请号:EP17820266.9

    申请日:2017-06-29

    申请人: NEC Corporation

    发明人: ASADA Hideo

    摘要: Provided is a technology for simultaneously monitoring a plurality of relay devices. A relay device 1 comprises a superimposing unit 2 and a monitor unit 3. The relay device 1 is interposed on an optical transmission path between optical communication devices that send and receive an optical signal, and has a function for relaying the optical signal flowing through the optical transmission path. The monitor unit 3 monitors the operation status of the relay device 1. At a predetermined timing, the superimposing unit 2 superimposes monitor unit 3 monitoring-information onto an optical signal of a primary signal flowing through the optical transmission path, by performing modulation processing on the basis of an oscillation signal having a predetermined oscillation frequency. The relay device 1 can spontaneously superimpose the monitoring information onto an optical signal and transmit same.