FR681886A - Perfectionnements aux appareils de signalisation sans fil - Google Patents

Perfectionnements aux appareils de signalisation sans fil

Info

Publication number
FR681886A
FR681886A FR681886DA FR681886A FR 681886 A FR681886 A FR 681886A FR 681886D A FR681886D A FR 681886DA FR 681886 A FR681886 A FR 681886A
Authority
FR
France
Prior art keywords
signaling devices
wireless signaling
wireless
devices
signaling
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
English (en)
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.)
MARCONTS WIRELESS TELEGRAPH CO
Original Assignee
MARCONTS WIRELESS TELEGRAPH CO
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 MARCONTS WIRELESS TELEGRAPH CO filed Critical MARCONTS WIRELESS TELEGRAPH CO
Application granted granted Critical
Publication of FR681886A publication Critical patent/FR681886A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Road Signs Or Road Markings (AREA)
FR681886D 1928-09-27 1929-09-17 Perfectionnements aux appareils de signalisation sans fil Expired FR681886A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2775628A GB323237A (en) 1928-09-27 1928-09-27 Improvements in or relating to wireless signalling apparatus

Publications (1)

Publication Number Publication Date
FR681886A true FR681886A (fr) 1930-05-20

Family

ID=10264744

Family Applications (1)

Application Number Title Priority Date Filing Date
FR681886D Expired FR681886A (fr) 1928-09-27 1929-09-17 Perfectionnements aux appareils de signalisation sans fil

Country Status (3)

Country Link
FR (1) FR681886A (enrdf_load_stackoverflow)
GB (1) GB323237A (enrdf_load_stackoverflow)
NL (1) NL31450C (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982249A (en) * 1975-05-30 1976-09-21 Tull Aviation Corporation Microwave radiation method and apparatus with a combined diffraction edge and radiation screen

Also Published As

Publication number Publication date
GB323237A (en) 1929-12-27
NL31450C (enrdf_load_stackoverflow)

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