FR2247858A1 - - Google Patents

Info

Publication number
FR2247858A1
FR2247858A1 FR7335247A FR7335247A FR2247858A1 FR 2247858 A1 FR2247858 A1 FR 2247858A1 FR 7335247 A FR7335247 A FR 7335247A FR 7335247 A FR7335247 A FR 7335247A FR 2247858 A1 FR2247858 A1 FR 2247858A1
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.)
Granted
Application number
FR7335247A
Other languages
French (fr)
Other versions
FR2247858B1 (en
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.)
Compagnie IBM France SAS
Original Assignee
Compagnie IBM France SAS
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 Compagnie IBM France SAS filed Critical Compagnie IBM France SAS
Priority to FR7335247A priority Critical patent/FR2247858B1/fr
Priority to GB3447674A priority patent/GB1433576A/en
Priority to DE19742440480 priority patent/DE2440480A1/en
Priority to JP10060474A priority patent/JPS541122B2/ja
Publication of FR2247858A1 publication Critical patent/FR2247858A1/fr
Application granted granted Critical
Publication of FR2247858B1 publication Critical patent/FR2247858B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/14—Monitoring arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/025—Filter arrangements
    • 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
    • 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
FR7335247A 1973-09-27 1973-09-27 Expired FR2247858B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7335247A FR2247858B1 (en) 1973-09-27 1973-09-27
GB3447674A GB1433576A (en) 1973-09-27 1974-08-06 Time-division multiplex system
DE19742440480 DE2440480A1 (en) 1973-09-27 1974-08-23 TRANSMISSION CIRCUIT FOR PULSE CODE MODULATED SIGNALS
JP10060474A JPS541122B2 (en) 1973-09-27 1974-09-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7335247A FR2247858B1 (en) 1973-09-27 1973-09-27

Publications (2)

Publication Number Publication Date
FR2247858A1 true FR2247858A1 (en) 1975-05-09
FR2247858B1 FR2247858B1 (en) 1976-06-18

Family

ID=9125834

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7335247A Expired FR2247858B1 (en) 1973-09-27 1973-09-27

Country Status (4)

Country Link
JP (1) JPS541122B2 (en)
DE (1) DE2440480A1 (en)
FR (1) FR2247858B1 (en)
GB (1) GB1433576A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417221A1 (en) * 1978-02-14 1979-09-07 Int Standard Electric Corp TIME MULTIPLEXING COMMUNICATION SYSTEM PROVIDED WITH A DIGITAL CONTROL CIRCUIT OR TRANSMISSION LEVEL
EP0333340A1 (en) * 1988-03-16 1989-09-20 Stc Plc Multiplexer

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5915232B2 (en) * 1977-02-15 1984-04-07 沖電気工業株式会社 Telephone exchange system test method
GB2180430B (en) * 1985-09-05 1989-08-23 Motorola Inc Subscriber line card arrangement
KR100272118B1 (en) * 1991-11-06 2000-11-15 이데이 노부유끼 Optical disk player and tracking servo circuit with digital servo control circuit
US5257026A (en) * 1992-04-17 1993-10-26 Crystal Semiconductor, Inc. Method and apparatus for calibrating a multi-bit delta-sigma modular

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417221A1 (en) * 1978-02-14 1979-09-07 Int Standard Electric Corp TIME MULTIPLEXING COMMUNICATION SYSTEM PROVIDED WITH A DIGITAL CONTROL CIRCUIT OR TRANSMISSION LEVEL
EP0333340A1 (en) * 1988-03-16 1989-09-20 Stc Plc Multiplexer

Also Published As

Publication number Publication date
JPS541122B2 (en) 1979-01-20
JPS5061909A (en) 1975-05-27
DE2440480A1 (en) 1975-04-10
FR2247858B1 (en) 1976-06-18
GB1433576A (en) 1976-04-28

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Legal Events

Date Code Title Description
ST Notification of lapse