FR803830A - Device for overlay telegraphy - Google Patents

Device for overlay telegraphy

Info

Publication number
FR803830A
FR803830A FR803830DA FR803830A FR 803830 A FR803830 A FR 803830A FR 803830D A FR803830D A FR 803830DA FR 803830 A FR803830 A FR 803830A
Authority
FR
France
Prior art keywords
telegraphy
overlay
overlay telegraphy
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.)
AEG AG
Original Assignee
Allgemeine Elektricitaets Gesellschaft
AEG AG
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 Allgemeine Elektricitaets Gesellschaft, AEG AG filed Critical Allgemeine Elektricitaets Gesellschaft
Application granted granted Critical
Publication of FR803830A publication Critical patent/FR803830A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR803830D 1935-04-06 1936-03-27 Device for overlay telegraphy Expired FR803830A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA75745D DE685363C (en) 1935-04-06 1935-04-06 Device for subordinate telegraphy with isolating transmitters from the telephone and telegraph connections, with a direct current being sampled in the telegraph transmission circuit via a capacitor and an upstream resistor

Publications (1)

Publication Number Publication Date
FR803830A true FR803830A (en) 1936-10-09

Family

ID=41356265

Family Applications (1)

Application Number Title Priority Date Filing Date
FR803830D Expired FR803830A (en) 1935-04-06 1936-03-27 Device for overlay telegraphy

Country Status (2)

Country Link
DE (1) DE685363C (en)
FR (1) FR803830A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE896372C (en) * 1940-11-10 1953-11-12 Siemens Ag Circuit arrangement for the transmission of control currents over lines sealed off by transmitters

Also Published As

Publication number Publication date
DE685363C (en) 1939-12-16

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