Inventor
TSUBOI SHUNICHI
JP13 patents
Patents
13 patentsUS12204291B2Jan 21, 2025
Time transmission correction device, time transmission system, and delay measurement method
NIPPON TELEGRAPH & TELEPHONE2 citations73
US11722288B2Aug 8, 2023
Time synchronization path selection device and time synchronization path selection method
NIPPON TELEGRAPH & TELEPHONE2 citations71
US11855760B2Dec 26, 2023
Transmission device, time transmission system, and delay compensation method
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11791922B2Oct 17, 2023
Transmission device, time transmission system, and delay compensation method
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11750358B2Sep 5, 2023
Time transmission device and transmission method
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11638228B2Apr 25, 2023
Time comparison device and time quality monitoring method
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11438857B2Sep 6, 2022
Transmission device, time transmission system, and delay measurement method
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11927923B2Mar 12, 2024
Time synchronization system, management device, time synchronization method, and program
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11815552B2Nov 14, 2023
Clock frequency monitoring device and clock frequency monitoring method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11240141B2Feb 1, 2022
Time path selection device and time path selection method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11196499B2Dec 7, 2021
Time synchronization device and time synchronization method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11196535B2Dec 7, 2021
Time synchronization system and time synchronization method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11196533B2Dec 7, 2021
Time synchronization system and time synchronization method
NIPPON TELEGRAPH & TELEPHONE0 citations49