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FR2427743A1 - Dispositif de surveillance d'un transmultiplexeur - Google Patents

Dispositif de surveillance d'un transmultiplexeur

Info

Publication number
FR2427743A1
FR2427743A1 FR7815891A FR7815891A FR2427743A1 FR 2427743 A1 FR2427743 A1 FR 2427743A1 FR 7815891 A FR7815891 A FR 7815891A FR 7815891 A FR7815891 A FR 7815891A FR 2427743 A1 FR2427743 A1 FR 2427743A1
Authority
FR
France
Prior art keywords
transmultiplexer
computing unit
signals
monitoring device
multiplex
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
FR7815891A
Other languages
English (en)
Other versions
FR2427743B1 (fr
Inventor
Georges Bonnerot
Michel Coudreuse
Patrice Senn
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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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 Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Priority to FR7815891A priority Critical patent/FR2427743A1/fr
Priority to US06/041,041 priority patent/US4304000A/en
Priority to AU47356/79A priority patent/AU526123B2/en
Priority to DE19792920849 priority patent/DE2920849A1/de
Priority to SE7904514A priority patent/SE439085B/sv
Priority to CA000328295A priority patent/CA1146679A/fr
Priority to GB7918354A priority patent/GB2021903B/en
Priority to JP6570079A priority patent/JPS54156411A/ja
Priority to BE0/195460A priority patent/BE876621A/fr
Publication of FR2427743A1 publication Critical patent/FR2427743A1/fr
Application granted granted Critical
Publication of FR2427743B1 publication Critical patent/FR2427743B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/04—Frequency-transposition arrangements
    • H04J1/05—Frequency-transposition arrangements using digital techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/16—Monitoring arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J4/00—Combined time-division and frequency-division multiplex systems
    • H04J4/005—Transmultiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

Pour surveiller le fonctionnement de l'unité de calcul d'un transmultiplexeur destiné à convertir par des moyens numériques un multiplex temporel en un multiplexe fréquentiel et inversement, on utilise comme signal de test, les signaux pilotes qui sont utilisés pour la régulation de niveau des signaux multiplex fréquentiels émis et reçu et qui sont traités dans le transmultiplexeur. Le filtre de sélection du signal pilote qui est utilisé également en répartition dans le temps pour sélectionner une composante ayant les fréquences du signal pilote dans des signaux déduits des quatre acces de l'unité de calcul. Application : réseaux de communications téléphoniques.
FR7815891A 1978-05-29 1978-05-29 Dispositif de surveillance d'un transmultiplexeur Granted FR2427743A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7815891A FR2427743A1 (fr) 1978-05-29 1978-05-29 Dispositif de surveillance d'un transmultiplexeur
US06/041,041 US4304000A (en) 1978-05-29 1979-05-21 Device for supervising a transmultiplexer
DE19792920849 DE2920849A1 (de) 1978-05-29 1979-05-23 Anordnung zum ueberwachen eines transmultiplexers
SE7904514A SE439085B (sv) 1978-05-29 1979-05-23 Digitaltransmultiplexer
AU47356/79A AU526123B2 (en) 1978-05-29 1979-05-23 Supervising a transmultiplexer
CA000328295A CA1146679A (fr) 1978-05-29 1979-05-24 Dispositif pour surveiller un transmultiplexeur
GB7918354A GB2021903B (en) 1978-05-29 1979-05-25 Digital transultiplexer
JP6570079A JPS54156411A (en) 1978-05-29 1979-05-29 Digital conversion multiplex device
BE0/195460A BE876621A (fr) 1978-05-29 1979-05-29 Dispositif pour surveiller un transmultiplexeur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7815891A FR2427743A1 (fr) 1978-05-29 1978-05-29 Dispositif de surveillance d'un transmultiplexeur

Publications (2)

Publication Number Publication Date
FR2427743A1 true FR2427743A1 (fr) 1979-12-28
FR2427743B1 FR2427743B1 (fr) 1980-11-07

Family

ID=9208778

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7815891A Granted FR2427743A1 (fr) 1978-05-29 1978-05-29 Dispositif de surveillance d'un transmultiplexeur

Country Status (9)

Country Link
US (1) US4304000A (fr)
JP (1) JPS54156411A (fr)
AU (1) AU526123B2 (fr)
BE (1) BE876621A (fr)
CA (1) CA1146679A (fr)
DE (1) DE2920849A1 (fr)
FR (1) FR2427743A1 (fr)
GB (1) GB2021903B (fr)
SE (1) SE439085B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3041701C2 (de) * 1980-11-05 1986-01-02 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur Einkopplung der Pilottöne bei der Umsetzung von Zeitmultiplex-Signalen in Frequenzmultiplex-Signale
US4715029A (en) * 1986-07-02 1987-12-22 Hughes Aircraft Company FDMA communications channel synchronizer
US4747095A (en) * 1986-07-02 1988-05-24 Hughes Aircraft Company Saw demodulator employing corrective feedback timing
US4719619A (en) * 1986-07-03 1988-01-12 Hughes Aircraft Company Synchronizer for communications processor
US4796253A (en) * 1986-07-03 1989-01-03 Hughes Aircraft Company Time base converter employing two reference position phase lock loop
US5274627A (en) * 1991-07-10 1993-12-28 International Telecommunications Satellite Organization Non-regenerative multibeam satellite communications system with FDMA access and SSTDM connectivity
US6552832B1 (en) 1996-10-07 2003-04-22 Telesector Resources Group, Inc. Telecommunications system including transmultiplexer installed between digital switch and optical signal transmission fiber
JP2000022658A (ja) * 1998-06-26 2000-01-21 Hitachi Denshi Ltd 複数搬送波変調方式
US8335202B2 (en) 2006-11-20 2012-12-18 Qualcomm Incorporated Sending pilots on secondary channels for improved acquisition and handoff in cellular communication
US8937900B2 (en) 2010-07-20 2015-01-20 Qualcomm Incorporated Enhancing pilot channel transmission in TD-SCDMA multicarrier systems using secondary carrier frequencies

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH495094A (de) * 1968-08-12 1970-08-15 Standard Telephon & Radio Ag Verfahren zur Überwachung der Arbeitsweise von Coder- und Decoderschaltungen in einer PCM-Zeitmultiplex-Anlage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2188920A5 (fr) * 1972-06-15 1974-01-18 Trt Telecom Radio Electr
FR2287811A1 (fr) * 1974-10-08 1976-05-07 Cit Alcatel Regulateur de niveau de type numerique
FR2303326A1 (fr) * 1975-03-05 1976-10-01 Trt Telecom Radio Electr Dispositif de calcul de transformee de fourier discrete
SE382730B (sv) * 1975-04-04 1976-02-09 Ericsson Telefon Ab L M Minnesenhet for pilotmottagaren i ett berfrekvenssystem
FR2315809A1 (fr) * 1975-06-24 1977-01-21 Trt Telecom Radio Electr Systeme de transmission des signaux auxiliaires d'un groupe de voies telephoniques d'un multiplex a repartition en frequence

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH495094A (de) * 1968-08-12 1970-08-15 Standard Telephon & Radio Ag Verfahren zur Überwachung der Arbeitsweise von Coder- und Decoderschaltungen in einer PCM-Zeitmultiplex-Anlage

Also Published As

Publication number Publication date
JPS6310619B2 (fr) 1988-03-08
DE2920849A1 (de) 1979-12-13
US4304000A (en) 1981-12-01
CA1146679A (fr) 1983-05-17
GB2021903A (en) 1979-12-05
GB2021903B (en) 1982-09-15
SE7904514L (sv) 1979-11-30
JPS54156411A (en) 1979-12-10
AU4735679A (en) 1979-12-06
BE876621A (fr) 1979-11-29
AU526123B2 (en) 1982-12-16
FR2427743B1 (fr) 1980-11-07
SE439085B (sv) 1985-05-28

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Legal Events

Date Code Title Description
CL Concession to grant licences
DR Decision of the appeal court due to an appeal at law against decisions of the director of the inpi, except decision of lapse
ST Notification of lapse