DE3485896D1 - Analogsignalpruefschaltung. - Google Patents

Analogsignalpruefschaltung.

Info

Publication number
DE3485896D1
DE3485896D1 DE8484402553T DE3485896T DE3485896D1 DE 3485896 D1 DE3485896 D1 DE 3485896D1 DE 8484402553 T DE8484402553 T DE 8484402553T DE 3485896 T DE3485896 T DE 3485896T DE 3485896 D1 DE3485896 D1 DE 3485896D1
Authority
DE
Germany
Prior art keywords
pair
signals
tone
telephone systems
decoder
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 - Lifetime
Application number
DE8484402553T
Other languages
English (en)
Other versions
DE3485896T2 (de
Inventor
Edward Arthur Bruckert
David Gerard Conroy
Richard Daniel Ellison
Martin Allen Minow
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.)
Digital Equipment Corp
Original Assignee
Digital Equipment 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 Digital Equipment Corp filed Critical Digital Equipment Corp
Application granted granted Critical
Publication of DE3485896D1 publication Critical patent/DE3485896D1/de
Publication of DE3485896T2 publication Critical patent/DE3485896T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
    • G01R31/2834—Automated test systems [ATE]; using microprocessors or computers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/302—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs
    • H04M3/303—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs and using PCM multiplexers, e.g. pair gain systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Fire Alarms (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Control Of Combustion (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Interface Circuits In Exchanges (AREA)
DE8484402553T 1983-12-12 1984-12-11 Analogsignalpruefschaltung. Expired - Lifetime DE3485896T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/560,237 US4552992A (en) 1983-12-12 1983-12-12 Analog signal verification circuit

Publications (2)

Publication Number Publication Date
DE3485896D1 true DE3485896D1 (de) 1992-10-01
DE3485896T2 DE3485896T2 (de) 1993-04-08

Family

ID=24236933

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484402553T Expired - Lifetime DE3485896T2 (de) 1983-12-12 1984-12-11 Analogsignalpruefschaltung.

Country Status (7)

Country Link
US (1) US4552992A (de)
EP (1) EP0145605B1 (de)
JP (1) JPS60174552A (de)
AT (1) ATE79959T1 (de)
AU (1) AU566217B2 (de)
CA (1) CA1236219A (de)
DE (1) DE3485896T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9015361D0 (en) * 1990-07-12 1990-08-29 Siemens Plc Cordless telephone testing system
US5926460A (en) * 1995-02-27 1999-07-20 Lucent Technologies Inc. Transmission monitoring system and method
DE10009767B4 (de) * 2000-03-01 2006-07-06 Infineon Technologies Ag Interpolations-Filterschaltung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2240218B2 (de) * 1972-08-16 1977-05-18 TEKA DE Feiten & Guilleaume Fernmeldeanlagen GmbH, 500 Nürnberg Ueberwachungseinrichtung fuer ein pulscodemodulationssystem
CH551112A (de) * 1972-10-24 1974-06-28 Hasler Ag Verfahren zur dauernden ueberwachung von coder und decoder in einer pcm-endstelle.
US4254469A (en) * 1979-03-01 1981-03-03 Ncr Corporation Method and apparatus for offset error correction
JPS5772455A (en) * 1980-10-23 1982-05-06 Fujitsu Ltd Testing method for subscriber's circuit

Also Published As

Publication number Publication date
EP0145605A3 (en) 1988-08-03
JPS60174552A (ja) 1985-09-07
AU566217B2 (en) 1987-10-15
US4552992A (en) 1985-11-12
AU3665284A (en) 1985-08-01
DE3485896T2 (de) 1993-04-08
JPH0130338B2 (de) 1989-06-19
ATE79959T1 (de) 1992-09-15
CA1236219A (en) 1988-05-03
EP0145605B1 (de) 1992-08-26
EP0145605A2 (de) 1985-06-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: GRUENECKER, KINKELDEY, STOCKMAIR & SCHWANHAEUSSER, 80538 MUENCHEN