FR1047488A - Production d'ondes sonores par interférence d'ondes ultrasonores - Google Patents

Production d'ondes sonores par interférence d'ondes ultrasonores

Info

Publication number
FR1047488A
FR1047488A FR1047488DA FR1047488A FR 1047488 A FR1047488 A FR 1047488A FR 1047488D A FR1047488D A FR 1047488DA FR 1047488 A FR1047488 A FR 1047488A
Authority
FR
France
Prior art keywords
waves
interference
production
ultrasonic waves
sound
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)
Inventor
Bernard-Emile Meyer
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 FR1047488A publication Critical patent/FR1047488A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR1047488D 1952-01-03 1952-01-03 Production d'ondes sonores par interférence d'ondes ultrasonores Expired FR1047488A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1047488T 1952-01-03

Publications (1)

Publication Number Publication Date
FR1047488A true FR1047488A (fr) 1953-12-15

Family

ID=9592890

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1047488D Expired FR1047488A (fr) 1952-01-03 1952-01-03 Production d'ondes sonores par interférence d'ondes ultrasonores

Country Status (1)

Country Link
FR (1) FR1047488A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997043755A1 (fr) * 1996-05-13 1997-11-20 Constantinov Christian H Communicateur audio personnel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997043755A1 (fr) * 1996-05-13 1997-11-20 Constantinov Christian H Communicateur audio personnel

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