FR2304899B1 - - Google Patents

Info

Publication number
FR2304899B1
FR2304899B1 FR7508763A FR7508763A FR2304899B1 FR 2304899 B1 FR2304899 B1 FR 2304899B1 FR 7508763 A FR7508763 A FR 7508763A FR 7508763 A FR7508763 A FR 7508763A FR 2304899 B1 FR2304899 B1 FR 2304899B1
Authority
FR
France
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.)
Expired
Application number
FR7508763A
Other languages
French (fr)
Other versions
FR2304899A1 (fr
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT 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 Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR7508763A priority Critical patent/FR2304899A1/fr
Priority to BE1007231A priority patent/BE839223A/xx
Priority to LU74516A priority patent/LU74516A1/xx
Priority to DE19762610834 priority patent/DE2610834A1/de
Priority to JP51027221A priority patent/JPS51117671A/ja
Priority to IT21242/76A priority patent/IT1058424B/it
Priority to SE7603353A priority patent/SE408844B/xx
Priority to NL7602866A priority patent/NL7602866A/xx
Priority to DK122576A priority patent/DK144548C/da
Priority to IE583/76A priority patent/IE42518B1/en
Priority to GB11376/76A priority patent/GB1499635A/en
Publication of FR2304899A1 publication Critical patent/FR2304899A1/fr
Priority to US05/837,147 priority patent/US4199729A/en
Application granted granted Critical
Publication of FR2304899B1 publication Critical patent/FR2304899B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
    • H04J3/175—Speech activity or inactivity detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
    • G01D1/12—Measuring arrangements giving results other than momentary value of variable, of general application giving a maximum or minimum of a value
    • 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
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16528—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values using digital techniques or performing arithmetic operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • 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
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/448—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency with conversion of a single frequency signal into a digital signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Analogue/Digital Conversion (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
FR7508763A 1975-03-20 1975-03-20 Detecteur de crete d'une variable Granted FR2304899A1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
FR7508763A FR2304899A1 (fr) 1975-03-20 1975-03-20 Detecteur de crete d'une variable
BE1007231A BE839223A (fr) 1975-03-20 1976-03-05 Detecteur de crete d'une variable
LU74516A LU74516A1 (sl) 1975-03-20 1976-03-10
DE19762610834 DE2610834A1 (de) 1975-03-20 1976-03-15 Detektor zur feststellung des spitzenwerts einer veraenderlichen elektrischen groesse
JP51027221A JPS51117671A (en) 1975-03-20 1976-03-15 Peak detector
IT21242/76A IT1058424B (it) 1975-03-20 1976-03-16 Rivelatore di cresta di una variabile
SE7603353A SE408844B (sv) 1975-03-20 1976-03-17 Detektor for detektering av en variabel signals niva
NL7602866A NL7602866A (nl) 1975-03-20 1976-03-18 Inrichting voor het detecteren van de maximum waarde van een variabele.
DK122576A DK144548C (da) 1975-03-20 1976-03-19 Signalspidsvaerdidetektor,isaer til ekkoundertrykkelseskobling
IE583/76A IE42518B1 (en) 1975-03-20 1976-03-19 Peak level detector circuit
GB11376/76A GB1499635A (en) 1975-03-20 1976-03-22 Peak level detector circuit
US05/837,147 US4199729A (en) 1975-03-20 1977-09-27 Variable peak detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7508763A FR2304899A1 (fr) 1975-03-20 1975-03-20 Detecteur de crete d'une variable

Publications (2)

Publication Number Publication Date
FR2304899A1 FR2304899A1 (fr) 1976-10-15
FR2304899B1 true FR2304899B1 (sl) 1977-11-18

Family

ID=9152843

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7508763A Granted FR2304899A1 (fr) 1975-03-20 1975-03-20 Detecteur de crete d'une variable

Country Status (11)

Country Link
JP (1) JPS51117671A (sl)
BE (1) BE839223A (sl)
DE (1) DE2610834A1 (sl)
DK (1) DK144548C (sl)
FR (1) FR2304899A1 (sl)
GB (1) GB1499635A (sl)
IE (1) IE42518B1 (sl)
IT (1) IT1058424B (sl)
LU (1) LU74516A1 (sl)
NL (1) NL7602866A (sl)
SE (1) SE408844B (sl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156280A (en) * 1976-12-17 1979-05-22 International Business Machines Corporation Utility monitor for detecting and storing power line disturbances
CA1130920A (en) * 1979-03-05 1982-08-31 William G. Crouse Speech detector with variable threshold
FR2451680A1 (fr) * 1979-03-12 1980-10-10 Soumagne Joel Discriminateur parole/silence pour interpolation de la parole
HU179871B (en) * 1980-06-05 1982-12-28 Mueszeripari Kutato Intezet Apparatus for searching extreme value of and noise compensation at the procession of sampled signals
FR2543304B1 (fr) * 1983-03-22 1985-07-12 Soletanche Procede et dispositif pour obtenir la valeur de crete d'un signal et application a un procede et un dispositif pour determiner la durete d'un sol
EP0253039B1 (fr) * 1986-07-15 1991-04-03 International Business Machines Corporation Méthode et dispositif de protection contre les échos dans un modem

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543156A (en) * 1967-11-03 1970-11-24 Us Army Automatic digital pulse analyzer
US3593334A (en) * 1968-11-29 1971-07-13 Burroughs Corp Pulse discrimination system
DE2006491A1 (de) * 1970-02-13 1971-08-26 Losenhausen Testomax Gmbh Spitzenwertberechner

Also Published As

Publication number Publication date
DE2610834A1 (de) 1976-09-30
JPS51117671A (en) 1976-10-15
IT1058424B (it) 1982-04-10
NL7602866A (nl) 1976-09-22
BE839223A (fr) 1976-09-06
DK144548B (da) 1982-03-22
IE42518B1 (en) 1980-08-27
FR2304899A1 (fr) 1976-10-15
GB1499635A (en) 1978-02-01
IE42518L (en) 1976-09-20
DK144548C (da) 1982-09-06
DK122576A (da) 1976-09-21
SE408844B (sv) 1979-07-09
LU74516A1 (sl) 1977-01-11
SE7603353L (sv) 1976-09-21

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Legal Events

Date Code Title Description
ST Notification of lapse