FR821505A - Improvements to high frequency telegraph transmitters and the like - Google Patents

Improvements to high frequency telegraph transmitters and the like

Info

Publication number
FR821505A
FR821505A FR821505DA FR821505A FR 821505 A FR821505 A FR 821505A FR 821505D A FR821505D A FR 821505DA FR 821505 A FR821505 A FR 821505A
Authority
FR
France
Prior art keywords
high frequency
telegraph transmitters
frequency telegraph
transmitters
telegraph
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.)
Marconis Wireless Telegraph Co Ltd
Original Assignee
Marconis Wireless Telegraph 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 Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Application granted granted Critical
Publication of FR821505A publication Critical patent/FR821505A/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
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electron Tubes For Measurement (AREA)
  • Amplifiers (AREA)
FR821505D 1936-05-12 1937-05-07 Improvements to high frequency telegraph transmitters and the like Expired FR821505A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB202376X 1936-05-12
GB90237X 1937-02-09

Publications (1)

Publication Number Publication Date
FR821505A true FR821505A (en) 1937-12-07

Family

ID=26242589

Family Applications (1)

Application Number Title Priority Date Filing Date
FR821505D Expired FR821505A (en) 1936-05-12 1937-05-07 Improvements to high frequency telegraph transmitters and the like

Country Status (4)

Country Link
US (1) US2184382A (en)
CH (1) CH202376A (en)
FR (1) FR821505A (en)
GB (1) GB475105A (en)

Also Published As

Publication number Publication date
CH202376A (en) 1939-01-15
GB475105A (en) 1937-11-12
US2184382A (en) 1939-12-26

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