BE359027A - - Google Patents

Info

Publication number
BE359027A
BE359027A BE359027DA BE359027A BE 359027 A BE359027 A BE 359027A BE 359027D A BE359027D A BE 359027DA BE 359027 A BE359027 A BE 359027A
Authority
BE
Belgium
Prior art keywords
circuit
relay
oscillator
currents
current
Prior art date
Application number
Other languages
English (en)
French (fr)
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 BE359027A publication Critical patent/BE359027A/fr
Priority claimed from US752243A external-priority patent/US1696566A/en
Priority claimed from US5148A external-priority patent/US1696595A/en
Priority claimed from US227821A external-priority patent/US1696590A/en
Priority claimed from US262581A external-priority patent/US1792335A/en

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)
  • Selective Calling Equipment (AREA)
BE359027D 1924-11-25 BE359027A (US06262066-20010717-C00424.png)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US752243A US1696566A (en) 1924-11-25 1924-11-25 High-frequency duplex signaling system
US5148A US1696595A (en) 1925-01-27 1925-01-27 High-frequency duplex signaling system
US227821A US1696590A (en) 1924-11-25 1927-10-21 Signaling system
US262581A US1792335A (en) 1928-03-17 1928-03-17 Signal system

Publications (1)

Publication Number Publication Date
BE359027A true BE359027A (US06262066-20010717-C00424.png)

Family

ID=27485452

Family Applications (1)

Application Number Title Priority Date Filing Date
BE359027D BE359027A (US06262066-20010717-C00424.png) 1924-11-25

Country Status (1)

Country Link
BE (1) BE359027A (US06262066-20010717-C00424.png)

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