US 12,149,338 B2
Multiplex transmission system and connection method between ports for multiplex transmission system
Naotaka Shibata, Musashino (JP); Hiroko Nomura, Musashino (JP); Keita Takahashi, Musashino (JP); and Tomoya Hatano, Musashino (JP)
Assigned to Nippon Telegraph and Telephone Corporation, Tokyo (JP)
Appl. No. 18/011,580
Filed by Nippon Telegraph and Telephone Corporation, Tokyo (JP)
PCT Filed Jun. 29, 2020, PCT No. PCT/JP2020/025528
§ 371(c)(1), (2) Date Dec. 20, 2022,
PCT Pub. No. WO2022/003777, PCT Pub. Date Jan. 6, 2022.
Prior Publication US 2023/0291492 A1, Sep. 14, 2023
Int. Cl. H04J 14/02 (2006.01); H04L 45/00 (2022.01); H04L 49/25 (2022.01)
CPC H04J 14/0267 (2013.01) [H04L 45/62 (2013.01); H04L 49/25 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A multiplex transmission system for multiplexing and transmitting a plurality of signals between a first multiplex transmission device and a second multiplex transmission device, wherein
each of the first multiplex transmission device and the second multiplex transmission device includes a plurality of client ports to which a client device is connectable, and
either one of the first multiplex transmission device and the second multiplex transmission device further includes:
a switch unit configured to connect any one of a plurality of the client ports of the first multiplex transmission device with any one of a plurality of the client ports of the second multiplex transmission device;
an extraction unit, including one or more processors, configured to extract identification information from a signal inputted to each of the client ports of each of the first multiplex transmission device and the second multiplex transmission device; and
a switch control unit, including one or more processors, configured to;
determine whether the identification information extracted from a first signal inputted to a first client port of the first multiplex transmission device matches the identification information extracted from a second signal inputted to a second client port of the second multiplex transmission device,
in response to determining that the identification information extracted from the first signal matches the identification information extracted from the second signal, control the switch unit to connect the first client port of the first multiplex transmission device with the second client port of the second multiplex transmission device, and
in response to determining that the identification information extracted from the first signal does not match the identification information extracted from the second signal, wait for new client device connections without controlling the switch unit to connect the first client port with the second client port.