FR700201A - Improvements to simplex telegraph systems - Google Patents

Improvements to simplex telegraph systems

Info

Publication number
FR700201A
FR700201A FR700201DA FR700201A FR 700201 A FR700201 A FR 700201A FR 700201D A FR700201D A FR 700201DA FR 700201 A FR700201 A FR 700201A
Authority
FR
France
Prior art keywords
telegraph systems
simplex
simplex telegraph
systems
telegraph
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.)
Creed and Co Ltd
Original Assignee
Creed and Co Ltd
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 Creed and Co Ltd filed Critical Creed and Co Ltd
Application granted granted Critical
Publication of FR700201A publication Critical patent/FR700201A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/18—Automatic changing of the traffic direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radio Relay Systems (AREA)
  • Interface Circuits In Exchanges (AREA)
FR700201D 1930-03-26 1930-08-08 Improvements to simplex telegraph systems Expired FR700201A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9639/30A GB351487A (en) 1930-03-26 1930-03-26 Improvements in telegraph circuits

Publications (1)

Publication Number Publication Date
FR700201A true FR700201A (en) 1931-02-26

Family

ID=9875866

Family Applications (1)

Application Number Title Priority Date Filing Date
FR700201D Expired FR700201A (en) 1930-03-26 1930-08-08 Improvements to simplex telegraph systems

Country Status (3)

Country Link
US (1) US1834279A (en)
FR (1) FR700201A (en)
GB (1) GB351487A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL190297A (en) * 1954-06-28 Matsushita Electric Ind Co Ltd IMAGE DISPLAY DEVICE WITH FLAT VACUUM HOUSING.
US3103647A (en) * 1959-07-01 1963-09-10 Bell Telephone Labor Inc Transmitter and receiver signaling circuits

Also Published As

Publication number Publication date
GB351487A (en) 1931-06-26
US1834279A (en) 1931-12-01

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