BE793381A - Dispositif d'emission et de reception d'impulsions telephoniques - Google Patents

Dispositif d'emission et de reception d'impulsions telephoniques

Info

Publication number
BE793381A
BE793381A BE793381DA BE793381A BE 793381 A BE793381 A BE 793381A BE 793381D A BE793381D A BE 793381DA BE 793381 A BE793381 A BE 793381A
Authority
BE
Belgium
Prior art keywords
reception device
pulses transmission
telephone
telephone pulses
transmission
Prior art date
Application number
Other languages
English (en)
French (fr)
Original Assignee
Ass Ouvriers Instr Precision
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.)
Filing date
Publication date
Application filed by Ass Ouvriers Instr Precision filed Critical Ass Ouvriers Instr Precision
Publication of BE793381A publication Critical patent/BE793381A/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
    • H04B1/58—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
    • H04B1/586—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 using an electronic circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1213—Frequency selective two-port networks using amplifiers with feedback using transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
    • H03H11/1286—Sallen-Key biquad
    • 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
    • H04B1/58—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Networks Using Active Elements (AREA)
  • Amplifiers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
BE793381D 1972-01-04 1972-12-27 Dispositif d'emission et de reception d'impulsions telephoniques BE793381A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7200102A FR2166696A5 (xx) 1972-01-04 1972-01-04
FR7243763A FR2250462A6 (xx) 1972-01-04 1972-12-08

Publications (1)

Publication Number Publication Date
BE793381A true BE793381A (fr) 1973-04-16

Family

ID=26216817

Family Applications (1)

Application Number Title Priority Date Filing Date
BE793381D BE793381A (fr) 1972-01-04 1972-12-27 Dispositif d'emission et de reception d'impulsions telephoniques

Country Status (8)

Country Link
US (1) US4001524A (xx)
BE (1) BE793381A (xx)
CH (1) CH583484A5 (xx)
DE (1) DE2300318A1 (xx)
FR (2) FR2166696A5 (xx)
GB (1) GB1424381A (xx)
IT (1) IT976320B (xx)
NL (1) NL7217601A (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2042848B (en) * 1978-12-30 1983-01-06 Plessey Co Ltd Line current feed and hybrid arrangement (sytem x)
DE2911866C3 (de) * 1979-03-26 1982-03-11 Siemens AG, 1000 Berlin und 8000 München Anordnung mit einer Gabelschaltung für den Zweidraht-Vierdraht-Übergang in PCM-Zeitmultiplexsystemen
US4358644A (en) * 1980-06-17 1982-11-09 Rts Systems, Inc. Bilateral current source for a multi-terminal intercom
DE3936894A1 (de) * 1989-11-06 1991-05-08 Bosch Gmbh Robert Multiplex-schaltungsanordnung, insbesondere fuer die ansteuerung von verbraucher-stationen in kraftfahrzeugen
EP1247328B1 (en) * 2000-01-03 2005-08-31 Harman International Industries, Incorporated Power converter with remote and local sensing feedback signals combined in a high-order constant-sum filter
US7576627B2 (en) * 2006-04-24 2009-08-18 Bradley University Electronically tunable active duplexer
GB2571732A (en) * 2018-03-06 2019-09-11 Reid Acoustic Designs Ltd An apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180947A (en) * 1961-09-12 1965-04-27 Sylvania Electric Prod Electronic bridge hybrid circuit
US3480742A (en) * 1967-03-31 1969-11-25 Bell Telephone Labor Inc Hybrid circuit
US3586881A (en) * 1967-12-29 1971-06-22 Bell Telephone Labor Inc Transistor hybrid circuit

Also Published As

Publication number Publication date
NL7217601A (xx) 1973-07-06
US4001524A (en) 1977-01-04
FR2166696A5 (xx) 1973-08-17
CH583484A5 (xx) 1976-12-31
GB1424381A (en) 1976-02-11
FR2250462A6 (xx) 1975-05-30
IT976320B (it) 1974-08-20
DE2300318A1 (de) 1973-07-12

Similar Documents

Publication Publication Date Title
BE801237A (fr) Dispositif de catheterisme
FR2306384A1 (fr) Dispositif de transmission hydrostatique
FR2316796A1 (fr) Emetteur d'impulsions
BE794184A (fr) Dispositif d'alarme
BE800438A (fr) Dispositif d'obturation de conduite
RO65457A (ro) Dispozitiv de blocare si rapel
BE837022A (fr) Dispositif d'amplification d'impulsions laser
CH486746A (fr) Dispositif d'alarme
BE762016A (fr) Dispositif de telecommunication
BE817330A (fr) Dispositif de transmission
BE793381A (fr) Dispositif d'emission et de reception d'impulsions telephoniques
CH499063A (fr) Dispositif d'allumage piézo-électrique
BE793591A (fr) Dispositif d'etancheite
FR2329889A1 (fr) Dispositif flexible de transmission
FR2331913A2 (fr) Dispositif d'emission et de reception d'impulsions telephoniques codees
BE798022A (fr) Dispositif de deconnexion
BE800498A (fr) Dispositif de poussee
BE745779A (fr) Dispositif de production d'impulsions sequentielles
BE805588A (fr) Dispositif de transmission d'information
BE760981A (fr) Dispositif de transmission d'impulsions sismiques
BE848285R (fr) Dispositif d'emission et de reception d'impulsions telephoniques,
BE748572A (fr) Dispositif generateur d'impulsions
BE807534A (fr) Dispositif d'extrusion
BE790809A (fr) Dispositif injecteur
CH534460A (fr) Dispositif discriminateur d'impulsions