H04B3/42 - CPC Classification Index

ClassID:

223543 ⎘

H04B3/42 - CPC Classification

Classification description:

Line transmission systems; Details Circuits for by-passing of ringing signals

Recent Application in this class:

20250247129

EASY DSL SIGNAL DETECTOR

20230120458

Easy DSL signal detector

20190363753

Systems and methods for suppressing radiofrequency noise from a modem

20190288680

Ringing suppressor circuit

20190158144

RINGING SUPPRESSION CIRCUIT

20190158143

Ringing suppression circuit

20190097681

Ringing suppression circuit

20180248542

Ringing suppression circuit