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FR563386A - Acoustics on receiver for wireless telegraphy - Google Patents

Acoustics on receiver for wireless telegraphy

Info

Publication number
FR563386A
FR563386A FR563386DA FR563386A FR 563386 A FR563386 A FR 563386A FR 563386D A FR563386D A FR 563386DA FR 563386 A FR563386 A FR 563386A
Authority
FR
France
Prior art keywords
acoustics
receiver
wireless telegraphy
telegraphy
wireless
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
Albert-Georges Thomas
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 filed Critical
Application granted granted Critical
Publication of FR563386A publication Critical patent/FR563386A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
    • H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
    • H04M1/2155—Acoustic coupling

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR563386D 1923-03-07 1923-03-07 Acoustics on receiver for wireless telegraphy Expired FR563386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR563386T 1923-03-07

Publications (1)

Publication Number Publication Date
FR563386A true FR563386A (en) 1923-12-04

Family

ID=8944995

Family Applications (1)

Application Number Title Priority Date Filing Date
FR563386D Expired FR563386A (en) 1923-03-07 1923-03-07 Acoustics on receiver for wireless telegraphy

Country Status (1)

Country Link
FR (1) FR563386A (en)

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