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FR2542095B1 - Ensemble d'ecoute a distance - Google Patents

Ensemble d'ecoute a distance

Info

Publication number
FR2542095B1
FR2542095B1 FR8213957A FR8213957A FR2542095B1 FR 2542095 B1 FR2542095 B1 FR 2542095B1 FR 8213957 A FR8213957 A FR 8213957A FR 8213957 A FR8213957 A FR 8213957A FR 2542095 B1 FR2542095 B1 FR 2542095B1
Authority
FR
France
Prior art keywords
remote listening
assembly
listening assembly
remote
listening
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
FR8213957A
Other languages
English (en)
Other versions
FR2542095A1 (fr
Inventor
Jean-Noel Blanchard
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.)
LEM Holding SA
Original Assignee
LEM 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 LEM SA filed Critical LEM SA
Priority to FR8213957A priority Critical patent/FR2542095B1/fr
Publication of FR2542095A1 publication Critical patent/FR2542095A1/fr
Application granted granted Critical
Publication of FR2542095B1 publication Critical patent/FR2542095B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
    • G01S3/802—Systems for determining direction or deviation from predetermined direction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
FR8213957A 1982-08-09 1982-08-09 Ensemble d'ecoute a distance Expired FR2542095B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8213957A FR2542095B1 (fr) 1982-08-09 1982-08-09 Ensemble d'ecoute a distance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8213957A FR2542095B1 (fr) 1982-08-09 1982-08-09 Ensemble d'ecoute a distance

Publications (2)

Publication Number Publication Date
FR2542095A1 FR2542095A1 (fr) 1984-09-07
FR2542095B1 true FR2542095B1 (fr) 1987-12-18

Family

ID=9276788

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8213957A Expired FR2542095B1 (fr) 1982-08-09 1982-08-09 Ensemble d'ecoute a distance

Country Status (1)

Country Link
FR (1) FR2542095B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL12364C (fr) * 1919-06-25
US2069208A (en) * 1931-09-16 1937-02-02 Submarine Signal Co Electrical circuits
FR850084A (fr) * 1938-08-13 1939-12-07 Perfectionnements à la goniométrie des sources sonores
FR1297216A (fr) * 1961-05-16 1962-06-29 Csf Nouvel amplificateur à transistors

Also Published As

Publication number Publication date
FR2542095A1 (fr) 1984-09-07

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Legal Events

Date Code Title Description
CL Concession to grant licenses
ST Notification of lapse
AR Application made for restoration
DA Annulment of decision of lapse
ST Notification of lapse