FR400115A - Method for transmitting and recording signals by means of continuous electric waves - Google Patents

Method for transmitting and recording signals by means of continuous electric waves

Info

Publication number
FR400115A
FR400115A FR400115DA FR400115A FR 400115 A FR400115 A FR 400115A FR 400115D A FR400115D A FR 400115DA FR 400115 A FR400115 A FR 400115A
Authority
FR
France
Prior art keywords
transmitting
recording signals
electric waves
continuous electric
continuous
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
Ernst Ruhmer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR400115A publication Critical patent/FR400115A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telescopes (AREA)
FR400115D 1908-07-03 1909-03-03 Method for transmitting and recording signals by means of continuous electric waves Expired FR400115A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE400115X 1908-07-03

Publications (1)

Publication Number Publication Date
FR400115A true FR400115A (en) 1909-07-19

Family

ID=6398216

Family Applications (1)

Application Number Title Priority Date Filing Date
FR400115D Expired FR400115A (en) 1908-07-03 1909-03-03 Method for transmitting and recording signals by means of continuous electric waves

Country Status (2)

Country Link
FR (1) FR400115A (en)
GB (1) GB400115A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828185A (en) * 1960-12-01 1974-08-06 Singer Co Modulated light communication system
US3290503A (en) * 1963-05-06 1966-12-06 Raytheon Co Light communication system

Also Published As

Publication number Publication date
GB400115A (en) 1933-10-19

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