GB236647A - Improvements in radio signalling systems - Google Patents

Improvements in radio signalling systems

Info

Publication number
GB236647A
GB236647A GB9038/24A GB903824A GB236647A GB 236647 A GB236647 A GB 236647A GB 9038/24 A GB9038/24 A GB 9038/24A GB 903824 A GB903824 A GB 903824A GB 236647 A GB236647 A GB 236647A
Authority
GB
United Kingdom
Prior art keywords
transmitter
signals
sent
transmitters
key
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
GB9038/24A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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
Priority to DEM89174D priority Critical patent/DE422773C/de
Priority to NL16444D priority patent/NL16444C/xx
Application filed by Individual filed Critical Individual
Priority to GB9038/24A priority patent/GB236647A/en
Priority to US20033A priority patent/US1821921A/en
Publication of GB236647A publication Critical patent/GB236647A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GB9038/24A 1924-04-09 1924-04-09 Improvements in radio signalling systems Expired GB236647A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DEM89174D DE422773C (de) 1924-04-09 Verfahren zur Geheimhaltung drahtlos uebermittelter Signale
NL16444D NL16444C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1924-04-09
GB9038/24A GB236647A (en) 1924-04-09 1924-04-09 Improvements in radio signalling systems
US20033A US1821921A (en) 1924-04-09 1925-04-02 Radio signaling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9038/24A GB236647A (en) 1924-04-09 1924-04-09 Improvements in radio signalling systems

Publications (1)

Publication Number Publication Date
GB236647A true GB236647A (en) 1925-07-09

Family

ID=9864187

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9038/24A Expired GB236647A (en) 1924-04-09 1924-04-09 Improvements in radio signalling systems

Country Status (3)

Country Link
US (1) US1821921A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB236647A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL16444C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507033A1 (fr) * 1981-05-26 1982-12-03 Ferranti Ltd Systeme de telecommunication transmetteur d'informations

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146446A (en) * 1960-03-24 1964-08-25 Novitzky Anatol Ranging systems
US3335418A (en) * 1964-03-04 1967-08-08 Int Standard Electric Corp System for localizing radio communications
US3449745A (en) * 1965-01-15 1969-06-10 Lockheed Aircraft Corp Synthetic beam sharpening system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507033A1 (fr) * 1981-05-26 1982-12-03 Ferranti Ltd Systeme de telecommunication transmetteur d'informations

Also Published As

Publication number Publication date
US1821921A (en) 1931-09-08
NL16444C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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