FR2238269B1 - - Google Patents

Info

Publication number
FR2238269B1
FR2238269B1 FR7326131A FR7326131A FR2238269B1 FR 2238269 B1 FR2238269 B1 FR 2238269B1 FR 7326131 A FR7326131 A FR 7326131A FR 7326131 A FR7326131 A FR 7326131A FR 2238269 B1 FR2238269 B1 FR 2238269B1
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.)
Expired
Application number
FR7326131A
Other languages
French (fr)
Other versions
FR2238269A1 (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.)
SOULE ETS IND
Original Assignee
SOULE ETS IND
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 SOULE ETS IND filed Critical SOULE ETS IND
Priority to FR7326131A priority Critical patent/FR2238269B1/fr
Priority to DE19742429688 priority patent/DE2429688B2/en
Priority to GB2905974A priority patent/GB1480488A/en
Publication of FR2238269A1 publication Critical patent/FR2238269A1/fr
Priority to US05/722,167 priority patent/US4068282A/en
Application granted granted Critical
Publication of FR2238269B1 publication Critical patent/FR2238269B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
    • H04M1/745—Protection devices or circuits for voltages surges on the line
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Optical Communication System (AREA)
FR7326131A 1973-07-17 1973-07-17 Expired FR2238269B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7326131A FR2238269B1 (en) 1973-07-17 1973-07-17
DE19742429688 DE2429688B2 (en) 1973-07-17 1974-06-20 DEVICE FOR TRANSMISSION OF LOW CURRENT SIGNALS ON CABLES
GB2905974A GB1480488A (en) 1973-07-17 1974-07-01 Low current transmission circuits
US05/722,167 US4068282A (en) 1973-07-17 1976-09-10 Protective device for low current transmission circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7326131A FR2238269B1 (en) 1973-07-17 1973-07-17

Publications (2)

Publication Number Publication Date
FR2238269A1 FR2238269A1 (en) 1975-02-14
FR2238269B1 true FR2238269B1 (en) 1981-03-06

Family

ID=9122700

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7326131A Expired FR2238269B1 (en) 1973-07-17 1973-07-17

Country Status (3)

Country Link
DE (1) DE2429688B2 (en)
FR (1) FR2238269B1 (en)
GB (1) GB1480488A (en)

Also Published As

Publication number Publication date
FR2238269A1 (en) 1975-02-14
DE2429688B2 (en) 1976-11-11
DE2429688A1 (en) 1975-01-30
GB1480488A (en) 1977-07-20

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Legal Events

Date Code Title Description
ST Notification of lapse