FR2294449A2 - Procede de determination du rapport des amplitudes de deux tensions sinusoidales utilisant un dispositif d'ecretage et circuits de mise en oeuvre - Google Patents

Procede de determination du rapport des amplitudes de deux tensions sinusoidales utilisant un dispositif d'ecretage et circuits de mise en oeuvre

Info

Publication number
FR2294449A2
FR2294449A2 FR7441086A FR7441086A FR2294449A2 FR 2294449 A2 FR2294449 A2 FR 2294449A2 FR 7441086 A FR7441086 A FR 7441086A FR 7441086 A FR7441086 A FR 7441086A FR 2294449 A2 FR2294449 A2 FR 2294449A2
Authority
FR
France
Prior art keywords
voltages
found
frequency signal
different frequencies
multiple frequency
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
FR7441086A
Other languages
English (en)
French (fr)
Other versions
FR2294449B2 (en:Method
Inventor
Jacques Bessard
Robert Dallemagne
Claude Hannigsberg
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.)
Lignes Telegraphiques et Telephoniques LTT SA
Original Assignee
Lignes Telegraphiques et Telephoniques LTT SA
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 Lignes Telegraphiques et Telephoniques LTT SA filed Critical Lignes Telegraphiques et Telephoniques LTT SA
Priority to FR7441086A priority Critical patent/FR2294449A2/fr
Priority to DE19752552290 priority patent/DE2552290C3/de
Publication of FR2294449A2 publication Critical patent/FR2294449A2/fr
Priority to US05/862,160 priority patent/US4169969A/en
Application granted granted Critical
Publication of FR2294449B2 publication Critical patent/FR2294449B2/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
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/04—Measuring peak values or amplitude or envelope of AC or of pulses
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/10—Measuring sum, difference or ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Manipulation Of Pulses (AREA)
FR7441086A 1974-11-21 1974-12-13 Procede de determination du rapport des amplitudes de deux tensions sinusoidales utilisant un dispositif d'ecretage et circuits de mise en oeuvre Granted FR2294449A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7441086A FR2294449A2 (fr) 1974-12-13 1974-12-13 Procede de determination du rapport des amplitudes de deux tensions sinusoidales utilisant un dispositif d'ecretage et circuits de mise en oeuvre
DE19752552290 DE2552290C3 (de) 1974-11-21 1975-11-21 Verfahren und Schaltungen zur Bestimmung des Verhältnisses der Amplituden von zwei sinusförmigen Spannungen
US05/862,160 US4169969A (en) 1974-11-21 1977-12-19 Apparatus for detecting in-band signalling signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7441086A FR2294449A2 (fr) 1974-12-13 1974-12-13 Procede de determination du rapport des amplitudes de deux tensions sinusoidales utilisant un dispositif d'ecretage et circuits de mise en oeuvre

Publications (2)

Publication Number Publication Date
FR2294449A2 true FR2294449A2 (fr) 1976-07-09
FR2294449B2 FR2294449B2 (en:Method) 1980-04-30

Family

ID=9146124

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7441086A Granted FR2294449A2 (fr) 1974-11-21 1974-12-13 Procede de determination du rapport des amplitudes de deux tensions sinusoidales utilisant un dispositif d'ecretage et circuits de mise en oeuvre

Country Status (1)

Country Link
FR (1) FR2294449A2 (en:Method)

Also Published As

Publication number Publication date
FR2294449B2 (en:Method) 1980-04-30

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