GB533479A - Improvements in frequency modulation systems for carrier wave signalling - Google Patents

Improvements in frequency modulation systems for carrier wave signalling

Info

Publication number
GB533479A
GB533479A GB29794/39A GB2979439A GB533479A GB 533479 A GB533479 A GB 533479A GB 29794/39 A GB29794/39 A GB 29794/39A GB 2979439 A GB2979439 A GB 2979439A GB 533479 A GB533479 A GB 533479A
Authority
GB
United Kingdom
Prior art keywords
frequency
carrier
sub
modulation
frequency modulation
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
GB29794/39A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB533479A publication Critical patent/GB533479A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/20—Frequency-division multiplex systems in which at least one carrier is angle-modulated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/08—Transmission systems not characterised by the medium used for transmission characterised by the use of a sub-carrier

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Stereo-Broadcasting Methods (AREA)
GB29794/39A 1938-11-12 1939-11-10 Improvements in frequency modulation systems for carrier wave signalling Expired GB533479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US533479XA 1938-11-12 1938-11-12

Publications (1)

Publication Number Publication Date
GB533479A true GB533479A (en) 1941-02-13

Family

ID=21983579

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29794/39A Expired GB533479A (en) 1938-11-12 1939-11-10 Improvements in frequency modulation systems for carrier wave signalling

Country Status (3)

Country Link
BE (1) BE480549A (fr)
DE (1) DE746192C (fr)
GB (1) GB533479A (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR493660A (fr) * 1917-08-04 1919-08-19 Lucien Levy Système de transmission électrique à distance, applicable particulièrement à la télégraphie et téléphonie sans fil
NL44760C (fr) * 1933-01-24 1900-01-01
NL51362C (fr) * 1935-09-14

Also Published As

Publication number Publication date
DE746192C (de) 1944-06-19
BE480549A (fr)

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