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CH215524A - Transmission system for simultaneous operation. - Google Patents

Transmission system for simultaneous operation.

Info

Publication number
CH215524A
CH215524A CH215524DA CH215524A CH 215524 A CH215524 A CH 215524A CH 215524D A CH215524D A CH 215524DA CH 215524 A CH215524 A CH 215524A
Authority
CH
Switzerland
Prior art keywords
transmission system
simultaneous operation
simultaneous
transmission
Prior art date
Application number
Other languages
German (de)
Inventor
Bell Telephone Manufac Anonyme
Original Assignee
Bell Telephone Mfg
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 Bell Telephone Mfg filed Critical Bell Telephone Mfg
Publication of CH215524A publication Critical patent/CH215524A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/08—Arrangements for interconnection between switching centres for phantom working
    • 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)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
CH215524D 1939-06-13 1940-06-06 Transmission system for simultaneous operation. CH215524A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB215524X 1939-06-13

Publications (1)

Publication Number Publication Date
CH215524A true CH215524A (en) 1941-06-30

Family

ID=10164814

Family Applications (2)

Application Number Title Priority Date Filing Date
CH215524D CH215524A (en) 1939-06-13 1940-06-06 Transmission system for simultaneous operation.
CH228092D CH228092A (en) 1939-06-13 1940-06-08 Transmission system in which a telegraph channel is routed over a telephone line.

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH228092D CH228092A (en) 1939-06-13 1940-06-08 Transmission system in which a telegraph channel is routed over a telephone line.

Country Status (4)

Country Link
BE (2) BE439843A (en)
CH (2) CH215524A (en)
FR (2) FR947900A (en)
GB (2) GB530621A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972640C (en) * 1952-04-10 1959-08-27 Siemens Ag Circuit arrangement for telecommunications systems for the simultaneous transmission of telephone currents and signals over the same line wires

Also Published As

Publication number Publication date
BE439843A (en)
FR947900A (en) 1949-07-15
BE439942A (en)
GB530621A (en) 1940-12-17
GB530669A (en) 1940-12-17
CH228092A (en) 1943-07-31
FR57449E (en) 1953-01-02

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