Technology trends
Patent search
Sign In
Sign Up
Patent classifications
H
ELECTRICITY
Load children
H04
ELECTRIC COMMUNICATION TECHNIQUE
Load children
H04L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
Load children
27/00
Modulated-carrier systems
Load children
Filter patents
View analytics
View as hierarchy
H04L27/26
Systems using multi-frequency codes
Load children
Filter patents
View analytics
View as hierarchy
H04L27/2601
Multicarrier modulation systems
Load children
Filter patents
View analytics
View as hierarchy
H04L27/2602
Signal structure
Load children
Filter patents
View analytics
View as hierarchy
H04L27/2605
Symbol extensions, e.g. Zero Tail, Unique Word [UW]
Load children
Filter patents
View analytics
View as hierarchy