FR1166175A - Improvements to telephone transmission systems - Google Patents

Improvements to telephone transmission systems

Info

Publication number
FR1166175A
FR1166175A FR1166175DA FR1166175A FR 1166175 A FR1166175 A FR 1166175A FR 1166175D A FR1166175D A FR 1166175DA FR 1166175 A FR1166175 A FR 1166175A
Authority
FR
France
Prior art keywords
transmission systems
telephone transmission
telephone
systems
transmission
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)
Inventor
Raymond Guirimand
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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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 Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Application granted granted Critical
Publication of FR1166175A publication Critical patent/FR1166175A/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
    • H04B1/66—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 for reducing bandwidth of signals; for improving efficiency of transmission
FR1166175D 1957-02-05 1957-02-05 Improvements to telephone transmission systems Expired FR1166175A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1166175T 1957-02-05

Publications (1)

Publication Number Publication Date
FR1166175A true FR1166175A (en) 1958-11-04

Family

ID=9654883

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1166175D Expired FR1166175A (en) 1957-02-05 1957-02-05 Improvements to telephone transmission systems

Country Status (1)

Country Link
FR (1) FR1166175A (en)

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