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Publication of FR557557ApublicationCriticalpatent/FR557557A/fr
H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
H04B1/40—Circuits
H04B1/54—Circuits using the same frequency for two directions of communication
H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
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Computer Networks & Wireless Communication
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Signal Processing
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FR557557D1922-08-101922-09-21Dispositif pour l'amplification de courants électriques
ExpiredFR557557A
(fr)