Patent classifications
H
ELECTRICITY
Load children
H04
ELECTRIC COMMUNICATION TECHNIQUE
Load children
H04B
TRANSMISSION
Load children
H04B3/20
Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
Load children Filter patents View analytics View as hierarchy
H04B3/23
using a replica of transmitted signal in the time domain, e.g. echo cancellers
Load children Filter patents View analytics View as hierarchy