BE521520A - - Google Patents

Info

Publication number
BE521520A
BE521520A BE521520DA BE521520A BE 521520 A BE521520 A BE 521520A BE 521520D A BE521520D A BE 521520DA BE 521520 A BE521520 A BE 521520A
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 BE521520A publication Critical patent/BE521520A/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
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/56—Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
BE521520D 1952-07-18 BE521520A (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US299598A US2691073A (en) 1952-07-18 1952-07-18 Transistor system for translating signals in two directions

Publications (1)

Publication Number Publication Date
BE521520A true BE521520A (OSRAM)

Family

ID=23155477

Family Applications (1)

Application Number Title Priority Date Filing Date
BE521520D BE521520A (OSRAM) 1952-07-18

Country Status (7)

Country Link
US (1) US2691073A (OSRAM)
BE (1) BE521520A (OSRAM)
CH (1) CH324352A (OSRAM)
DE (1) DE956692C (OSRAM)
FR (1) FR1081085A (OSRAM)
GB (1) GB725232A (OSRAM)
NL (2) NL179583B (OSRAM)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL182822B (nl) * 1952-11-15 Roskam Willem Gerrit Preparatief elektroforese-apparaat.
US2844739A (en) * 1953-07-01 1958-07-22 Rca Corp Sawtooth current wave generator
NL92537C (OSRAM) * 1953-12-04
US2884545A (en) * 1954-03-17 1959-04-28 Gen Precision Lab Inc Transistor protection circuit
US2802071A (en) * 1954-03-31 1957-08-06 Rca Corp Stabilizing means for semi-conductor circuits
BE537130A (OSRAM) * 1954-04-05
US2900530A (en) * 1954-04-16 1959-08-18 Vitro Corp Of America Transistor protection circuitry
US2883313A (en) * 1954-08-16 1959-04-21 Rca Corp Semiconductor devices
US2907932A (en) * 1954-08-16 1959-10-06 Honeywell Regulator Co Phase discriminating apparatus
US2879409A (en) * 1954-09-09 1959-03-24 Arthur W Holt Diode amplifier
US3028506A (en) * 1954-09-30 1962-04-03 Ibm Binary type pulse handling device
US2914665A (en) * 1954-11-15 1959-11-24 Rca Corp Semiconductor devices
BE556365A (OSRAM) * 1954-12-03
US2848608A (en) * 1954-12-08 1958-08-19 Ibm Electronic ring circuit
US2914682A (en) * 1955-02-10 1959-11-24 Bendix Aviat Corp Demodulator
US2898476A (en) * 1955-07-05 1959-08-04 Honeywell Regulator Co Transistor control apparatus
US2938194A (en) * 1955-07-25 1960-05-24 Bell Telephone Labor Inc Ferroelectric storage circuits
US2905836A (en) * 1955-07-27 1959-09-22 Rca Corp Semiconductor devices and systems
US2816238A (en) * 1955-08-18 1957-12-10 Gen Dynamics Corp Electronic switches
US2823322A (en) * 1955-08-23 1958-02-11 Gen Dynamics Corp Electronic switch
US2774888A (en) * 1955-08-23 1956-12-18 Gen Dynamics Corp Electronic switch
DE1068763B (de) * 1955-08-23 1959-11-12 Automatic Electric Laboratories, Inc., Chicago, 111. (V. St. A.) Schaltungsanordnung zum zweidrahtmäßigen Verbinden von Leitungsabschnitten über eine Zeitmultiplexubertragungsleitung
US2904705A (en) * 1955-08-29 1959-09-15 Gen Dynamics Corp Electronic switch
US2810081A (en) * 1955-09-27 1957-10-15 Gen Dynamics Corp Electronic switch for selectively blocking or permitting the simultaneous transmission of signals in two channels
US2972136A (en) * 1955-10-10 1961-02-14 Gieseler Luther Paul Data handling system and magnetic switching network therefor
BE553053A (OSRAM) * 1955-12-01
GB844850A (en) * 1955-12-19 1960-08-17 Nat Res Dev Improvements in or relating to electronic storage and switching circuits
US2889460A (en) * 1956-01-26 1959-06-02 Honeywell Regulator Co Electrical apparatus
US2889401A (en) * 1956-09-12 1959-06-02 Mid West Coil And Transformer Intercommunication unit
BE630765A (OSRAM) * 1956-11-08
US2853603A (en) * 1957-03-20 1958-09-23 Rca Corp Dual channel transistor amplifier
US3020351A (en) * 1957-03-20 1962-02-06 Gen Dynamics Corp Directional coupling network
US2912599A (en) * 1957-03-29 1959-11-10 Abraham George Parametric switching circuit amplifier
US2980769A (en) * 1957-05-06 1961-04-18 Westinghouse Electric Corp Bidirectional multiplex transistor communication apparatus
US3002144A (en) * 1957-08-21 1961-09-26 Boeing Co Controllable impedances
US3050582A (en) * 1957-10-01 1962-08-21 Jr John L Faherty Anti-feedback system
BE571806A (OSRAM) * 1958-01-06
US2988688A (en) * 1958-02-24 1961-06-13 Boeing Co Control circuits
US3052760A (en) * 1958-02-25 1962-09-04 Ericsson Telefon Ab L M Switch arrangement in a multi-channel-pulse-communication-system
DE1090276B (de) * 1958-04-24 1960-10-06 Standard Elektrik Lorenz Ag Als Modulator verwendeter Zweirichtungsverstaerker
US3086083A (en) * 1958-10-23 1963-04-16 Bell Telephone Labor Inc Switching circuit
US3060267A (en) * 1958-10-23 1962-10-23 Bell Telephone Labor Inc Switching circuit
US3071647A (en) * 1959-01-07 1963-01-01 Sylvania Electric Prod Intercommunication system
US3113183A (en) * 1959-04-02 1963-12-03 Bell Telephone Labor Inc Switching circuit
DE1108748B (de) * 1959-08-04 1961-06-15 Standard Elektrik Lorenz Ag Schaltungsanordnung fuer mit einem Transistor ausgeruestete Teilnehmerstationen
US3175050A (en) * 1960-03-21 1965-03-23 Nat Company Inc Bi-directional signal circuit
US3147345A (en) * 1961-04-26 1964-09-01 Bell Telephone Labor Inc Gain selective telephone set
US3172960A (en) * 1961-12-12 1965-03-09 Symmetrical transistor amplifier
US3889058A (en) * 1969-01-15 1975-06-10 Ard Anstalt Telephone systems with reduced acoustic feedback
US4278843A (en) * 1974-04-01 1981-07-14 Anaconda-Ericsson Inc. Two-way amplifier arrangement
EP0729670B1 (en) * 1993-11-16 2004-01-21 Commonwealth Scientific And Industrial Research Organisation A bidirectional amplifier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2021638A (en) * 1930-12-08 1935-11-19 G Usesojuznoje Objedinenje Ele Amplifier
BE488563A (OSRAM) * 1948-04-21
US2585078A (en) * 1948-11-06 1952-02-12 Bell Telephone Labor Inc Negative resistance device utilizing semiconductor amplifier

Also Published As

Publication number Publication date
FR1081085A (fr) 1954-12-15
CH324352A (de) 1957-09-15
GB725232A (en) 1955-03-02
NL179583B (nl)
US2691073A (en) 1954-10-05
NL86752C (OSRAM)
DE956692C (de) 1957-01-24

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