FR2331913A2 - Dispositif d'emission et de reception d'impulsions telephoniques codees - Google Patents

Dispositif d'emission et de reception d'impulsions telephoniques codees

Info

Publication number
FR2331913A2
FR2331913A2 FR7534824A FR7534824A FR2331913A2 FR 2331913 A2 FR2331913 A2 FR 2331913A2 FR 7534824 A FR7534824 A FR 7534824A FR 7534824 A FR7534824 A FR 7534824A FR 2331913 A2 FR2331913 A2 FR 2331913A2
Authority
FR
France
Prior art keywords
sending
receiving encoded
encoded telephone
pulses
telephone pulses
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7534824A
Other languages
English (en)
Other versions
FR2331913B2 (fr
Inventor
Lucien Pierre Emile Prudhon
Jean Pierre Georges Charil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Association des Ouvriers en Instruments de Precision
Original Assignee
Association des Ouvriers en Instruments de 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
Priority claimed from FR7200102A external-priority patent/FR2166696A5/fr
Application filed by Association des Ouvriers en Instruments de Precision filed Critical Association des Ouvriers en Instruments de Precision
Priority to FR7534824A priority Critical patent/FR2331913A2/fr
Priority to US05/731,762 priority patent/US4127750A/en
Priority to DE19762647641 priority patent/DE2647641A1/de
Priority to GB44946/76A priority patent/GB1562916A/en
Priority to CH1398876A priority patent/CH618557A5/fr
Priority to NL7612495A priority patent/NL7612495A/xx
Priority to IT52142/76A priority patent/IT1089823B/it
Priority to BE172311A priority patent/BE848285R/fr
Publication of FR2331913A2 publication Critical patent/FR2331913A2/fr
Publication of FR2331913B2 publication Critical patent/FR2331913B2/fr
Application granted granted Critical
Granted legal-status Critical Current

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/025—Filter arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/04—Distributors combined with modulators or demodulators
    • H04J3/047—Distributors with transistors or integrated circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Networks Using Active Elements (AREA)
FR7534824A 1972-01-04 1975-11-14 Dispositif d'emission et de reception d'impulsions telephoniques codees Granted FR2331913A2 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7534824A FR2331913A2 (fr) 1972-01-04 1975-11-14 Dispositif d'emission et de reception d'impulsions telephoniques codees
US05/731,762 US4127750A (en) 1972-01-04 1976-10-12 Apparatus for transmitting and receiving pulses
DE19762647641 DE2647641A1 (de) 1975-11-14 1976-10-21 Schaltanordnung zum senden und empfangen impulskodierter telefonsignale
GB44946/76A GB1562916A (en) 1975-11-14 1976-10-28 Apparatus for transmitting and receiving pulses
CH1398876A CH618557A5 (en) 1975-11-14 1976-11-05 Telephone installation including for each telephone set a device for transmitting and receiving coded telephone pulses
NL7612495A NL7612495A (nl) 1972-01-04 1976-11-10 Inrichting voor het uitzenden en ontvangen van gecodeerde telefonische impulsen.
IT52142/76A IT1089823B (it) 1975-11-14 1976-11-12 Dispositivo di emissione e di ricezione di impulsi telefonici codificati
BE172311A BE848285R (fr) 1975-11-14 1976-11-12 Dispositif d'emission et de reception d'impulsions telephoniques,

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR7200102A FR2166696A5 (fr) 1972-01-04 1972-01-04
FR7243763A FR2250462A6 (fr) 1972-01-04 1972-12-08
FR7534824A FR2331913A2 (fr) 1972-01-04 1975-11-14 Dispositif d'emission et de reception d'impulsions telephoniques codees

Publications (2)

Publication Number Publication Date
FR2331913A2 true FR2331913A2 (fr) 1977-06-10
FR2331913B2 FR2331913B2 (fr) 1979-06-22

Family

ID=27249750

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7534824A Granted FR2331913A2 (fr) 1972-01-04 1975-11-14 Dispositif d'emission et de reception d'impulsions telephoniques codees

Country Status (3)

Country Link
US (1) US4127750A (fr)
FR (1) FR2331913A2 (fr)
NL (1) NL7612495A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447658A1 (fr) * 1979-01-24 1980-08-22 Ass Ouvriers Instr Precision Dispositif d'emission et de reception d'impulsions telephoniques

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3936894A1 (de) * 1989-11-06 1991-05-08 Bosch Gmbh Robert Multiplex-schaltungsanordnung, insbesondere fuer die ansteuerung von verbraucher-stationen in kraftfahrzeugen
KR100474567B1 (ko) * 2002-12-18 2005-03-10 한국전자통신연구원 초고주파 전력 증폭기
US7576627B2 (en) * 2006-04-24 2009-08-18 Bradley University Electronically tunable active duplexer
FR2958095B1 (fr) * 2010-03-26 2012-04-13 St Microelectronics Sa Circuit passe-bas du second ordre

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950361A (en) * 1954-09-01 1960-08-23 Sprague Electric Co Duplex communication
US3180947A (en) * 1961-09-12 1965-04-27 Sylvania Electric Prod Electronic bridge hybrid circuit
GB1172089A (en) * 1965-09-29 1969-11-26 Superior Continental Corp A Communication System
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447658A1 (fr) * 1979-01-24 1980-08-22 Ass Ouvriers Instr Precision Dispositif d'emission et de reception d'impulsions telephoniques

Also Published As

Publication number Publication date
NL7612495A (nl) 1977-05-17
US4127750A (en) 1978-11-28
FR2331913B2 (fr) 1979-06-22

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