by using return channel

Full Title

Arrangements for detecting or preventing errors in the information received > by using return channel

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC COMMUNICATION TECHNIQUE

Subclass:

TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION

Child Classifications

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• H04L 1/14 in which the signals are sent back to the transmitter to be checked
• H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals