FR555438A - Improvements to high frequency signaling systems - Google Patents

Improvements to high frequency signaling systems

Info

Publication number
FR555438A
FR555438A FR555438DA FR555438A FR 555438 A FR555438 A FR 555438A FR 555438D A FR555438D A FR 555438DA FR 555438 A FR555438 A FR 555438A
Authority
FR
France
Prior art keywords
high frequency
signaling systems
frequency signaling
systems
signaling
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR555438A publication Critical patent/FR555438A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)
FR555438D 1921-08-29 1922-08-28 Improvements to high frequency signaling systems Expired FR555438A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US496229A US1500785A (en) 1921-08-29 1921-08-29 High-frequency signaling system

Publications (1)

Publication Number Publication Date
FR555438A true FR555438A (en) 1923-06-29

Family

ID=9714839

Family Applications (1)

Application Number Title Priority Date Filing Date
FR555438D Expired FR555438A (en) 1921-08-29 1922-08-28 Improvements to high frequency signaling systems

Country Status (3)

Country Link
US (1) US1500785A (en)
FR (1) FR555438A (en)
GB (1) GB196062A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486511A (en) * 1945-10-31 1949-11-01 Rca Corp Apparatus for receiving facsimile signals
US2869116A (en) * 1954-01-28 1959-01-13 Mackay Radio & Telegraph Co Automatic keyer for lifeboat radio equipment
DE1086762B (en) * 1957-11-08 1960-08-11 Telefunken Gmbh Transmitter circuit with means for frequency modulation and with a weakly damped antenna circuit

Also Published As

Publication number Publication date
GB196062A (en) 1923-04-12
US1500785A (en) 1924-07-08

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