CA1001239A - Method and an arrangement to indicate deterioration of pcm transmission quality - Google Patents

Method and an arrangement to indicate deterioration of pcm transmission quality

Info

Publication number
CA1001239A
CA1001239A CA190,472A CA190472A CA1001239A CA 1001239 A CA1001239 A CA 1001239A CA 190472 A CA190472 A CA 190472A CA 1001239 A CA1001239 A CA 1001239A
Authority
CA
Canada
Prior art keywords
arrangement
transmission quality
pcm transmission
indicate deterioration
deterioration
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
CA190,472A
Other languages
English (en)
Inventor
Martin Chown
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.)
ITT Canada Ltd
Original Assignee
ITT Canada Ltd
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 ITT Canada Ltd filed Critical ITT Canada Ltd
Application granted granted Critical
Publication of CA1001239A publication Critical patent/CA1001239A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/24—Relay circuits using discharge tubes or semiconductor devices
    • H04L25/242—Relay circuits using discharge tubes or semiconductor devices with retiming

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Dc Digital Transmission (AREA)
CA190,472A 1973-01-25 1974-01-18 Method and an arrangement to indicate deterioration of pcm transmission quality Expired CA1001239A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB377473 1973-01-25

Publications (1)

Publication Number Publication Date
CA1001239A true CA1001239A (en) 1976-12-07

Family

ID=9764666

Family Applications (1)

Application Number Title Priority Date Filing Date
CA190,472A Expired CA1001239A (en) 1973-01-25 1974-01-18 Method and an arrangement to indicate deterioration of pcm transmission quality

Country Status (8)

Country Link
US (1) US3873775A (ja)
JP (1) JPS49110204A (ja)
AR (1) AR200897A1 (ja)
BE (1) BE810131A (ja)
CA (1) CA1001239A (ja)
DE (1) DE2402933A1 (ja)
IT (1) IT1014532B (ja)
NL (1) NL7400767A (ja)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR205105A1 (es) * 1974-02-19 1976-04-05 Siemens Ag Regenerador de modulacion de pulsos codificada
FR2276744A1 (fr) * 1974-06-28 1976-01-23 Cit Alcatel Procede et dispositif de telesurveillance et telelocalisation de repeteurs-regenerateurs d'impulsions
US3962549A (en) * 1975-01-29 1976-06-08 Rca Corporation Threshold detector circuitry, as for PCM repeaters
FR2345017A1 (fr) * 1976-03-17 1977-10-14 Lainey Gilbert Dispositifs de mesure du taux d'erreur sur les elements binaires d'une liaison numerique
FR2345016A1 (fr) * 1976-03-17 1977-10-14 Lainey Gilbert Dispositifs de mesure du taux d'erreur sur les elements binaires d'une liaison numerique
US4071700A (en) * 1976-11-18 1978-01-31 Rockwell International Corporation Testing apparatus
CA1091778A (en) * 1977-06-01 1980-12-16 Stephen G. Harman Digital signal performance monitor
US4097697A (en) * 1977-06-02 1978-06-27 Northern Telecom Limited Digital signal performance monitor
US4301538A (en) * 1978-11-02 1981-11-17 Compagnie Industrielle Des Telecommunications Cit-Alcatel Remote surveillance and fault location unit for pulse regenerator repeaters
US4284843A (en) * 1979-05-10 1981-08-18 General Electric Company Repeating station for use in digital data communications link
US4327356A (en) * 1979-06-19 1982-04-27 Gilliland John D Arrangement for monitoring the performance of a digital transmission system
FR2469052A1 (fr) * 1979-11-05 1981-05-08 Thomson Csf Comparateur a memoire, assurant la regeneration de signaux electriques numeriques, et systeme de transmission numerique utilisant un tel comparateur
US4472680A (en) * 1982-01-29 1984-09-18 Dresser Industries, Inc. Circuit for processing electrical signals generated by a casing collar indicator instrument
US4490817A (en) * 1982-12-13 1984-12-25 At&T Bell Laboratories Packet error rate measurements by distributed controllers
FR2556153B2 (fr) * 1983-12-01 1986-09-12 Cit Alcatel Circuit de recuperation du rythme d'une transmission synchrone de donnees utilisant une combinaison des codes biphase l et biphase modifie
US4882749A (en) * 1986-01-09 1989-11-21 Harris Semiconductor (Patents) Inc. Control of signal transmission
US5086506A (en) * 1987-08-14 1992-02-04 General Electric Company Radio trunking fault detection system with power output monitoring and on-air monitoring
IT1211612B (it) * 1987-12-22 1989-11-03 Esercizio Delle Telecomunicazi Procedimento e dispositivo di decodifica con rivelazione di cancellature per sistemi di trasmissione multilivello
US5471527A (en) 1993-12-02 1995-11-28 Dsc Communications Corporation Voice enhancement system and method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1309570A (en) * 1970-09-28 1973-03-14 Gen Electric Co Ltd Degradation detection in a pcm system

Also Published As

Publication number Publication date
NL7400767A (ja) 1974-07-29
JPS49110204A (ja) 1974-10-21
AR200897A1 (es) 1974-12-27
BE810131A (nl) 1974-07-25
AU6438274A (en) 1975-07-10
US3873775A (en) 1975-03-25
DE2402933A1 (de) 1974-08-08
IT1014532B (it) 1977-04-30

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