FR796786A - Transmitter and receiver signaling device with perforation device - Google Patents

Transmitter and receiver signaling device with perforation device

Info

Publication number
FR796786A
FR796786A FR796786DA FR796786A FR 796786 A FR796786 A FR 796786A FR 796786D A FR796786D A FR 796786DA FR 796786 A FR796786 A FR 796786A
Authority
FR
France
Prior art keywords
transmitter
perforation
receiver signaling
signaling device
receiver
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of FR796786A publication Critical patent/FR796786A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/14—Arrangements for detecting or preventing errors in the information received by using return channel in which the signals are sent back to the transmitter to be checked ; echo systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
FR796786D 1934-02-23 1935-01-31 Transmitter and receiver signaling device with perforation device Expired FR796786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US712467A US2019864A (en) 1934-02-23 1934-02-23 Communication system

Publications (1)

Publication Number Publication Date
FR796786A true FR796786A (en) 1936-04-15

Family

ID=24862233

Family Applications (1)

Application Number Title Priority Date Filing Date
FR796786D Expired FR796786A (en) 1934-02-23 1935-01-31 Transmitter and receiver signaling device with perforation device

Country Status (4)

Country Link
US (1) US2019864A (en)
DE (1) DE669234C (en)
FR (1) FR796786A (en)
GB (1) GB452031A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE887962C (en) * 1941-01-18 1953-08-27 Schallband Syndikat Ag Control procedure for wireless intercom in air traffic control and the appendix for its implementation
DE863504C (en) * 1943-04-13 1953-01-19 Lorenz C Ag Circuit arrangement for telegraph connections with 4-wire operation and reading device
US2639322A (en) * 1948-10-30 1953-05-19 Rca Corp Facsimile scanner
DE915820C (en) * 1951-01-19 1954-07-29 Siemens Ag Method and arrangement for monitoring the transmission of messages in telex
US2679902A (en) * 1953-04-07 1954-06-01 Unitypo Inc Auxiliary keyboard and operating mechanism for typesetting, typecasting, message transmission, tape perforating, and similar machines

Also Published As

Publication number Publication date
DE669234C (en) 1938-12-22
US2019864A (en) 1935-11-05
GB452031A (en) 1936-08-17

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