FR506988A - Improvements to radio signaling systems - Google Patents

Improvements to radio signaling systems

Info

Publication number
FR506988A
FR506988A FR506988A FR506988DA FR506988A FR 506988 A FR506988 A FR 506988A FR 506988 A FR506988 A FR 506988A FR 506988D A FR506988D A FR 506988DA FR 506988 A FR506988 A FR 506988A
Authority
FR
France
Prior art keywords
signaling systems
radio signaling
radio
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
FR506988A
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 FR506988A publication Critical patent/FR506988A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Selective Calling Equipment (AREA)
  • Mobile Radio Communication Systems (AREA)
FR506988A 1917-09-04 1919-04-14 Improvements to radio signaling systems Expired FR506988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US189495A US1426944A (en) 1917-09-04 1917-09-04 Radiosignaling system

Publications (1)

Publication Number Publication Date
FR506988A true FR506988A (en) 1920-09-02

Family

ID=22697573

Family Applications (1)

Application Number Title Priority Date Filing Date
FR506988A Expired FR506988A (en) 1917-09-04 1919-04-14 Improvements to radio signaling systems

Country Status (2)

Country Link
US (1) US1426944A (en)
FR (1) FR506988A (en)

Also Published As

Publication number Publication date
US1426944A (en) 1922-08-22

Similar Documents

Publication Publication Date Title
FR506986A (en) Improvements to radio signaling systems
FR500065A (en) Improvements to automatic telephone systems
FR506988A (en) Improvements to radio signaling systems
FR512626A (en) Improvements to radio signaling systems
FR512627A (en) Improvements to radio signaling systems
FR520939A (en) Improvements to radio signaling systems
FR499212A (en) Improvements to radio signaling systems
FR24391E (en) Improvements to radio signaling systems
FR527469A (en) Improvements to radio signaling systems
FR509304A (en) Improvements to radio signaling systems
FR521586A (en) Improvements to radio signaling systems
FR525385A (en) Improvements to radio signaling systems
FR535489A (en) Improvements to radio signaling systems
FR519308A (en) Improvements to underground signaling systems
FR492272A (en) Improvements to automatic telephone systems
FR506594A (en) Improvements to radio-receiver systems
FR507652A (en) Improvements to radio signaling systems
FR23201E (en) Improvements made to printing telegraph systems
FR507653A (en) Improvements to radio signaling systems (antennas)
FR490270A (en) Improvements to automatic telephone systems
FR489436A (en) Improvements to automatic telephone systems
FR489660A (en) Improvements to automatic telephone systems
FR490134A (en) Improvements to automatic telephone systems
FR489328A (en) Improvements to automatic telephone systems
FR488500A (en) Improvements to automatic telephone systems