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FR695203A - Improvements to telephone circuits - Google Patents

Improvements to telephone circuits

Info

Publication number
FR695203A
FR695203A FR695203DA FR695203A FR 695203 A FR695203 A FR 695203A FR 695203D A FR695203D A FR 695203DA FR 695203 A FR695203 A FR 695203A
Authority
FR
France
Prior art keywords
telephone circuits
telephone
circuits
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR695203A publication Critical patent/FR695203A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR695203D 1929-08-23 1929-08-23 Improvements to telephone circuits Expired FR695203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR695203T 1929-08-23

Publications (1)

Publication Number Publication Date
FR695203A true FR695203A (en) 1930-12-12

Family

ID=9045952

Family Applications (1)

Application Number Title Priority Date Filing Date
FR695203D Expired FR695203A (en) 1929-08-23 1929-08-23 Improvements to telephone circuits

Country Status (1)

Country Link
FR (1) FR695203A (en)

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