Patent classifications
H
ELECTRICITY
Load children
H04
ELECTRIC COMMUNICATION TECHNIQUE
Load children
H04B
TRANSMISSION
Load children
2210/00
Indexing scheme relating to optical transmission systems
Load children Filter patents View analytics View as hierarchy
H04B2210/07
Monitoring an optical transmission system using a supervisory signal
Load children Filter patents View analytics View as hierarchy
H04B2210/078
using a separate wavelength
Filter patents View analytics View as hierarchy