FR2446041A1 - Circuit de demodulation et de filtrage pour un recepteur d'impulsions telephoniques codees - Google Patents

Circuit de demodulation et de filtrage pour un recepteur d'impulsions telephoniques codees

Info

Publication number
FR2446041A1
FR2446041A1 FR7900147A FR7900147A FR2446041A1 FR 2446041 A1 FR2446041 A1 FR 2446041A1 FR 7900147 A FR7900147 A FR 7900147A FR 7900147 A FR7900147 A FR 7900147A FR 2446041 A1 FR2446041 A1 FR 2446041A1
Authority
FR
France
Prior art keywords
resistor
gain
filter
operational amplifier
time constant
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
FR7900147A
Other languages
English (en)
French (fr)
Other versions
FR2446041B1 (it
Inventor
Jean Pierre
Georges Charil
Jacques Bernard Rene Rennesson
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
Application filed by Association des Ouvriers en Instruments de Precision filed Critical Association des Ouvriers en Instruments de Precision
Priority to FR7900147A priority Critical patent/FR2446041A1/fr
Priority to FR7903734A priority patent/FR2449384A2/fr
Publication of FR2446041A1 publication Critical patent/FR2446041A1/fr
Application granted granted Critical
Publication of FR2446041B1 publication Critical patent/FR2446041B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/39—Signalling arrangements; Manipulation of signalling currents using coded pulse groups
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Networks Using Active Elements (AREA)
FR7900147A 1979-01-04 1979-01-04 Circuit de demodulation et de filtrage pour un recepteur d'impulsions telephoniques codees Granted FR2446041A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7900147A FR2446041A1 (fr) 1979-01-04 1979-01-04 Circuit de demodulation et de filtrage pour un recepteur d'impulsions telephoniques codees
FR7903734A FR2449384A2 (fr) 1979-01-04 1979-02-14 Circuit de demodulation et de filtrage pour un recepteur d'impulsions telephoniques codees

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7900147A FR2446041A1 (fr) 1979-01-04 1979-01-04 Circuit de demodulation et de filtrage pour un recepteur d'impulsions telephoniques codees

Publications (2)

Publication Number Publication Date
FR2446041A1 true FR2446041A1 (fr) 1980-08-01
FR2446041B1 FR2446041B1 (it) 1982-08-20

Family

ID=9220461

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7900147A Granted FR2446041A1 (fr) 1979-01-04 1979-01-04 Circuit de demodulation et de filtrage pour un recepteur d'impulsions telephoniques codees

Country Status (1)

Country Link
FR (1) FR2446041A1 (it)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2331912A1 (fr) * 1975-11-14 1977-06-10 Ass Ouvriers Instr Precision Filtre actif, a parametres reglables de facon independante

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2331912A1 (fr) * 1975-11-14 1977-06-10 Ass Ouvriers Instr Precision Filtre actif, a parametres reglables de facon independante

Also Published As

Publication number Publication date
FR2446041B1 (it) 1982-08-20

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Legal Events

Date Code Title Description
ST Notification of lapse