FR699469A - Powerline telegraph system - Google Patents

Powerline telegraph system

Info

Publication number
FR699469A
FR699469A FR699469DA FR699469A FR 699469 A FR699469 A FR 699469A FR 699469D A FR699469D A FR 699469DA FR 699469 A FR699469 A FR 699469A
Authority
FR
France
Prior art keywords
powerline
telegraph system
telegraph
powerline telegraph
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
Other languages
French (fr)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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
Priority claimed from GB2902729A external-priority patent/GB340301A/en
Application filed by Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR699469A publication Critical patent/FR699469A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R5/00—Instruments for converting a single current or a single voltage into a mechanical displacement
    • G01R5/14—Moving-iron instruments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR699469D 1929-03-07 1929-10-24 Powerline telegraph system Expired FR699469A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US345057A US1779492A (en) 1929-03-07 1929-03-07 Carrier-current telegraph system
GB2902729A GB340301A (en) 1929-09-25 1929-09-25 Carrier current telegraph system
US443429A US1779493A (en) 1929-03-07 1930-04-11 Carrier-current telegraph system

Publications (1)

Publication Number Publication Date
FR699469A true FR699469A (en) 1931-02-16

Family

ID=27258779

Family Applications (1)

Application Number Title Priority Date Filing Date
FR699469D Expired FR699469A (en) 1929-03-07 1929-10-24 Powerline telegraph system

Country Status (2)

Country Link
US (2) US1779492A (en)
FR (1) FR699469A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623123A (en) * 1950-02-10 1952-12-23 Bell Telephone Labor Inc Carrier telegraph system

Also Published As

Publication number Publication date
US1779492A (en) 1930-10-28
US1779493A (en) 1930-10-28

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