FR540758A - Improvements in high frequency signaling - Google Patents

Improvements in high frequency signaling

Info

Publication number
FR540758A
FR540758A FR540758DA FR540758A FR 540758 A FR540758 A FR 540758A FR 540758D A FR540758D A FR 540758DA FR 540758 A FR540758 A FR 540758A
Authority
FR
France
Prior art keywords
high frequency
frequency signaling
signaling
frequency
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.)
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 FR540758A publication Critical patent/FR540758A/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 Sources, Ion Sources (AREA)
FR540758D 1920-02-04 1921-02-03 Improvements in high frequency signaling Expired FR540758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US356335A US1491450A (en) 1920-02-04 1920-02-04 High-frequency signaling system

Publications (1)

Publication Number Publication Date
FR540758A true FR540758A (en) 1922-07-18

Family

ID=23401054

Family Applications (1)

Application Number Title Priority Date Filing Date
FR540758D Expired FR540758A (en) 1920-02-04 1921-02-03 Improvements in high frequency signaling

Country Status (2)

Country Link
US (1) US1491450A (en)
FR (1) FR540758A (en)

Also Published As

Publication number Publication date
US1491450A (en) 1924-04-22

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