Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE454946ApublicationCriticalpatent/BE454946A/xx
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
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03F—AMPLIFIERS
H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
H03F3/62—Two-way amplifiers
H03F3/64—Two-way amplifiers with tubes only
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04B—TRANSMISSION
H04B3/00—Line transmission systems
H04B3/02—Details
H04B3/36—Repeater circuits
H04B3/38—Repeater circuits for signals in two different frequency ranges transmitted in opposite directions over the same transmission path