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FR569019A - Improvements to electric wave transmission systems - Google Patents

Improvements to electric wave transmission systems

Info

Publication number
FR569019A
FR569019A FR569019DA FR569019A FR 569019 A FR569019 A FR 569019A FR 569019D A FR569019D A FR 569019DA FR 569019 A FR569019 A FR 569019A
Authority
FR
France
Prior art keywords
wave transmission
electric wave
transmission systems
systems
electric
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
Application filed by Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR569019A publication Critical patent/FR569019A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/36—Repeater circuits
    • H04B3/38—Repeater circuits for signals in two different frequency ranges transmitted in opposite directions over the same transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/08—Arrangements for combining channels
    • H04J1/085—Terminal station; Combined modulator and demodulator circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
FR569019D 1922-07-26 1923-07-25 Improvements to electric wave transmission systems Expired FR569019A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US577493A US1501691A (en) 1922-07-26 1922-07-26 Selective transmission of electric waves

Publications (1)

Publication Number Publication Date
FR569019A true FR569019A (en) 1924-04-05

Family

ID=24308964

Family Applications (1)

Application Number Title Priority Date Filing Date
FR569019D Expired FR569019A (en) 1922-07-26 1923-07-25 Improvements to electric wave transmission systems

Country Status (3)

Country Link
US (1) US1501691A (en)
FR (1) FR569019A (en)
GB (1) GB201564A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6826278B2 (en) 2000-05-15 2004-11-30 Centillium Communications, Inc. Central office interface techniques for digital subscriber lines
US6850618B1 (en) * 2000-05-15 2005-02-01 Centillium Communications, Inc. Central office interface techniques for digital subscriber lines

Also Published As

Publication number Publication date
US1501691A (en) 1924-07-15
GB201564A (en) 1924-09-11

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