Inventor
TAKECHI HIROTO
JP6 patents
Patents
6 patentsUS12326785B2Jun 10, 2025
Transmission side transmission device and redundancy method of transmission side transmission device
NIPPON TELEGRAPH & TELEPHONE0 citations57
US12038813B2Jul 16, 2024
Transmitting side transmission device, receiving side transmission device, redundancy method of transmitting side transmission device, redundancy method of receiving side transmission device, program, and transmission device
NIPPON TELEGRAPH & TELEPHONE0 citations57
US11812205B2Nov 7, 2023
Optical cross-connect device, optical transmission system, and optical transmission line connection error detection method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11750535B2Sep 5, 2023
Transmitting device, receiving device, packet transfer system,packet transfer method, and packet transfer program
NIPPON TELEGRAPH & TELEPHONE0 citations48
US11696056B2Jul 4, 2023
Optical transmission system and optical transmission method
NIPPON TELEGRAPH & TELEPHONE0 citations48
US9565064B2Feb 7, 2017
Frame transmission apparatus and method for checking normality
NIPPON TELEGRAPH & TELEPHONE0 citations46