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    TWO-WAY COMMUNICATION DEVICE SYSTEM
    1.
    发明公开
    TWO-WAY COMMUNICATION DEVICE SYSTEM 审中-公开

    公开(公告)号：US20240257619A1

    公开(公告)日：2024-08-01

    申请号：US18631123

    申请日：2024-04-10

    申请人： Panasonic Holdings Corporation

    发明人： NORIAKI IMAOKA ,  MIYUKI KITABATAKE ,  KOTA NAKAHIRA ,  TAKESHI ANDO ,  MASAKI YAMAMOTO ,  KENJI SUZUKI

    IPC分类号： G08B5/28 ,  G08B5/36

    CPC分类号： G08B5/28 ,  G08B5/36

    摘要： A two-way communication device system includes: a first two-way communication device; and a second two-way communication device installed at a different location from the first two-way communication device and configured to communicate with the first two-way communication device The two-way communication device system creates an operator input operation history when an input operation is received for the first time, transmits an input signal to the second two-way communication device, creates an other-device input operation history when an input signal is received for the first time, maintains a first state when both the operator input operation history and the other-device input operation history do not exist, a second state when only one of the operator input operation history and the other-device input operation history exists, and a third state when both of the operator input operation history and the other-device input operation history exist, and deletes both the operator input operation history and the other-device input operation history at a specific cycle date and time.