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FR814686A - Improvements to telephone transmission systems - Google Patents

Improvements to telephone transmission systems

Info

Publication number
FR814686A
FR814686A FR814686DA FR814686A FR 814686 A FR814686 A FR 814686A FR 814686D A FR814686D A FR 814686DA FR 814686 A FR814686 A FR 814686A
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)
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.)
Associated Electric Laboratories Inc
Original Assignee
Associated Electric Laboratories Inc
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 Associated Electric Laboratories Inc filed Critical Associated Electric Laboratories Inc
Application granted granted Critical
Publication of FR814686A publication Critical patent/FR814686A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/18—Time-division multiplex systems using frequency compression and subsequent expansion of the individual signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
FR814686D 1936-01-02 1936-12-08 Improvements to telephone transmission systems Expired FR814686A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US483493XA 1936-01-02 1936-01-02

Publications (1)

Publication Number Publication Date
FR814686A true FR814686A (en) 1937-06-28

Family

ID=21954101

Family Applications (1)

Application Number Title Priority Date Filing Date
FR814686D Expired FR814686A (en) 1936-01-02 1936-12-08 Improvements to telephone transmission systems

Country Status (3)

Country Link
BE (1) BE418809A (en)
FR (1) FR814686A (en)
GB (1) GB483493A (en)

Also Published As

Publication number Publication date
BE418809A (en)
GB483493A (en) 1938-04-20

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