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Publication of HU166857BpublicationCriticalpatent/HU166857B/hu
H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L1/00—Arrangements for detecting or preventing errors in the information received
H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals