Type of modulation; Type of channel, e.g. digital or analog; Type of communication, e.g. half-duplex or full-duplex

Full Title

Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof > Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device > Mode signalling or mode changing; Handshaking therefor > of a particular mode > of transmission mode > Type of modulation; Type of channel, e.g. digital or analog; Type of communication, e.g. half-duplex or full-duplex