DE2710954C2 - Prüfeinrichtung für Tonsignale einer PCM-Vermittlung - Google Patents

Prüfeinrichtung für Tonsignale einer PCM-Vermittlung

Info

Publication number
DE2710954C2
DE2710954C2 DE19772710954 DE2710954A DE2710954C2 DE 2710954 C2 DE2710954 C2 DE 2710954C2 DE 19772710954 DE19772710954 DE 19772710954 DE 2710954 A DE2710954 A DE 2710954A DE 2710954 C2 DE2710954 C2 DE 2710954C2
Authority
DE
Germany
Prior art keywords
signal
pulse
counter
control
reset
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.)
Expired
Application number
DE19772710954
Other languages
German (de)
English (en)
Other versions
DE2710954A1 (de
Inventor
Augustin Verrieres le Buisson Lejay
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 Lucent NV
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of DE2710954A1 publication Critical patent/DE2710954A1/de
Application granted granted Critical
Publication of DE2710954C2 publication Critical patent/DE2710954C2/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
    • 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
    • H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
    • H04Q1/4575—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals which are transmitted in digital form
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
DE19772710954 1976-03-16 1977-03-12 Prüfeinrichtung für Tonsignale einer PCM-Vermittlung Expired DE2710954C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7607447A FR2345023A1 (fr) 1976-03-16 1976-03-16 Dispositif de verification des tonalites dans un centre de commutation mic

Publications (2)

Publication Number Publication Date
DE2710954A1 DE2710954A1 (de) 1977-09-29
DE2710954C2 true DE2710954C2 (de) 1984-05-30

Family

ID=9170457

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772710954 Expired DE2710954C2 (de) 1976-03-16 1977-03-12 Prüfeinrichtung für Tonsignale einer PCM-Vermittlung

Country Status (6)

Country Link
BE (1) BE852497A (enrdf_load_html_response)
CH (1) CH620560A5 (enrdf_load_html_response)
DE (1) DE2710954C2 (enrdf_load_html_response)
ES (1) ES456900A1 (enrdf_load_html_response)
FR (1) FR2345023A1 (enrdf_load_html_response)
GB (1) GB1520233A (enrdf_load_html_response)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474785A1 (fr) * 1980-01-09 1981-07-31 Cit Alcatel Dispositif de controle d'un generateur numerique de signaux
DE3116576A1 (de) * 1981-04-27 1982-11-18 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Verfahren zum betreiben eines digitalen hoertongenerators
DE3229438A1 (de) * 1982-08-06 1984-02-09 Siemens AG, 1000 Berlin und 8000 München Verfahren zur ueberwachung eines digitalen tongenerators
DE3325290A1 (de) * 1983-07-13 1985-01-24 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur sperrung von durch eine teilnehmerstation eines digitalen zeitmultiplex-fernsprechvermittlungssystems gelieferten sprachinformationen in abgehender uebertragungsrichtung

Also Published As

Publication number Publication date
DE2710954A1 (de) 1977-09-29
GB1520233A (en) 1978-08-02
FR2345023B1 (enrdf_load_html_response) 1981-09-04
BE852497A (fr) 1977-09-16
FR2345023A1 (fr) 1977-10-14
CH620560A5 (en) 1980-11-28
ES456900A1 (es) 1978-02-16

Similar Documents

Publication Publication Date Title
DE2753277C2 (de) Verfahren und Einrichtung zur Spracherkennung
DE2229149A1 (de) Verfahren zur Übertragung von Sprache
DE3101775A1 (de) Sprachdetektor mit mehrfachem, variablem schwellenwert
DE2251557B2 (de) Verfahren und radioempfaenger zum auswerten des digitalen adressenteils eines signals
DE3788854T2 (de) Überwachungssystem für fernsprechleitungen.
DE69324732T2 (de) Selektive Anwendung von Sprachkodierungstechniken
DE2756251C3 (de) Verfahren und Digitalempfänger zum Erkennen von mehrfrequenzcodierten digitalisierten Fernmeldesignalen
DE2710954C2 (de) Prüfeinrichtung für Tonsignale einer PCM-Vermittlung
DE1912981A1 (de) Codierer fuer Pulscodemodulation und differentielle Pulscodemodulation
DE69030475T2 (de) Verfahren und Einrichtung zur Umformung eines analogen Eingangssignals in Steuerungscodes und zur Synthese eines entsprechenden Ausgangssignals unter der Kontrolle dieser Codes
DE2455584B2 (de) Freisprecheinrichtung
DE2139918C3 (de) Analog Digital Codierer
DE2410748C3 (de) Sprachgeschätzter Signalempfänger für Mehrfrequenzsignale
DE2535730A1 (de) Verfahren und vorrichtung zur feststellung vielfrequenter toene
DE2852805A1 (de) Verfahren und schaltungsanordnung zur messung der uebertragungseigenschaften eines messobjektes
DE2610834A1 (de) Detektor zur feststellung des spitzenwerts einer veraenderlichen elektrischen groesse
DE2722393A1 (de) Ueberlappender pcm-kodierer/dekodierer mit reaktionszeitkompensation
DE3037276A1 (de) Tonsynthesizer
DE2624173A1 (de) Signal-erkennungsschaltung
DE69119005T2 (de) Verfahren und Einrichtung zur Kodierung eines Analogsignals mit Wiederholeigenschaft
DE69315638T2 (de) Vorrichtung zur Sprachdekodierung und Verfahren zur Dekodierung
DE3426915C2 (de) Verfahren zur Erzeugung eines akustischen Rufsignals
DE3040241A1 (de) Schaltungsanordnung zur messung der daempfung einer uebertragungsstrecke
DE3229438C2 (enrdf_load_html_response)
DE2721764C2 (de) Bitfehlerquotenbestimmung in PCMÜbertragungssystemen

Legal Events

Date Code Title Description
OD Request for examination
8125 Change of the main classification
D2 Grant after examination
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: GRAF, G., DIPL.-ING., PAT.-ASS., 7000 STUTTGART

8327 Change in the person/name/address of the patent owner

Owner name: ALCATEL N.V., AMSTERDAM, NL

8339 Ceased/non-payment of the annual fee