BE331755A - - Google Patents

Info

Publication number
BE331755A
BE331755A BE331755DA BE331755A BE 331755 A BE331755 A BE 331755A BE 331755D A BE331755D A BE 331755DA BE 331755 A BE331755 A BE 331755A
Authority
BE
Belgium
Application number
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 BE331755A publication Critical patent/BE331755A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • 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
    • H04B1/44—Transmit/receive switching
    • H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
BE331755D 1925-01-27 BE331755A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5148A US1696595A (en) 1925-01-27 1925-01-27 High-frequency duplex signaling system

Publications (1)

Publication Number Publication Date
BE331755A true BE331755A (zh)

Family

ID=21714424

Family Applications (1)

Application Number Title Priority Date Filing Date
BE331755D BE331755A (zh) 1925-01-27

Country Status (3)

Country Link
US (1) US1696595A (zh)
BE (1) BE331755A (zh)
DE (1) DE522801C (zh)

Also Published As

Publication number Publication date
DE522801C (de) 1931-04-15
US1696595A (en) 1928-12-25

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