FR931429A - Improvements to radio-telegraph systems - Google Patents

Improvements to radio-telegraph systems

Info

Publication number
FR931429A
FR931429A FR931429DA FR931429A FR 931429 A FR931429 A FR 931429A FR 931429D A FR931429D A FR 931429DA FR 931429 A FR931429 A FR 931429A
Authority
FR
France
Prior art keywords
radio
telegraph systems
telegraph
systems
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)
Inventor
Reginald Dennis Salmon
Frederick Percival Mason
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 FR931429A publication Critical patent/FR931429A/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • H04L27/063—Superheterodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
FR931429D 1939-10-06 1946-07-26 Improvements to radio-telegraph systems Expired FR931429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2737439A GB535388A (en) 1939-10-06 1939-10-06 Improvements in or relating to radio telegraph systems

Publications (1)

Publication Number Publication Date
FR931429A true FR931429A (en) 1948-02-23

Family

ID=10258570

Family Applications (1)

Application Number Title Priority Date Filing Date
FR931429D Expired FR931429A (en) 1939-10-06 1946-07-26 Improvements to radio-telegraph systems

Country Status (2)

Country Link
FR (1) FR931429A (en)
GB (1) GB535388A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317670A (en) * 1963-05-28 1967-05-02 Bell Telephone Labor Inc Receiver for detecting supervisory tones superimposed on fsk binary data signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317670A (en) * 1963-05-28 1967-05-02 Bell Telephone Labor Inc Receiver for detecting supervisory tones superimposed on fsk binary data signals

Also Published As

Publication number Publication date
GB535388A (en) 1941-04-08

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