EP0140901A1 - Mikrophon mit veränderbarer öffnung. - Google Patents

Mikrophon mit veränderbarer öffnung.

Info

Publication number
EP0140901A1
EP0140901A1 EP19840901056 EP84901056A EP0140901A1 EP 0140901 A1 EP0140901 A1 EP 0140901A1 EP 19840901056 EP19840901056 EP 19840901056 EP 84901056 A EP84901056 A EP 84901056A EP 0140901 A1 EP0140901 A1 EP 0140901A1
Authority
EP
European Patent Office
Prior art keywords
microphone
cave
résonnante
reception
appareil
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.)
Granted
Application number
EP19840901056
Other languages
English (en)
French (fr)
Other versions
EP0140901B1 (de
Inventor
Antoni Alberto Grigioni
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
Priority to AT84901056T priority Critical patent/ATE39317T1/de
Publication of EP0140901A1 publication Critical patent/EP0140901A1/de
Application granted granted Critical
Publication of EP0140901B1 publication Critical patent/EP0140901B1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/342—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for microphones

Definitions

  • Fig. 1 Illustre la capsule microphonique (l.a) facede dans un contismeteur.
  • Fig. 2 Illustre une matters frontale d'une section trasversale de l' initiate ou l'on Kunststoff la suspension Malawi champs magn electronicallys.

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Near-Field Transmission Systems (AREA)

Description

MICROPHONE A OUVERTÜREVARIABLE
Jusqu'à maintenant les microphones directionnels n'ont pas permis la modulation du champ de reception, demandant un pointage continu pour suivre une conversation ou un evenement sportif.
Ces appareils sont composes d'un microphone place au fond postérieur d'une cave résonnante, la longueur de laquelle détermine l'ouverture du champ de réception phonique du microphone.
Pour suivre les variations de prise de champ d'une caméra on devrait changer la cave résonnante à chaque variation.
Dans la situation actuelle un technicien du son doit suivre la caméra dans chaque mouvement et doit supplir aux lacunes de l'équipement en apportant le meine vers l'action faisant obstacle à la reprise filmée.
La solution est de placer un microphone capable de suivre les variations de champ de la caméra sur la meme de faςon d'être coaxial ä la ligne de reprise.
L'invention est expliquée dans la description d'une forme d'exécution de l'appareil, illustrée dans les illustrations dans les quels:
Fig.1 Illustre la capsule microphonique (l.a) installée dans un conténiteur.
Fig.2 Illustre une vue frontale d'une section trasversale de l'appareil ou l'on voit la suspension avec champs magnétiques.
Fig.3+4 Illustre la cave résonnante avec le microphone dans trois diverses positions.
Cet appareil est forme d'une capsule microphonique (l.a) placée dans un corps qui est à sa fois suspendu dans une cave résonnante (4) avec des champs magnetiques (Fig.2)
Cette suspension evite chaque friction entre le microphone et son récipient et la cave resonnante, evitant des bruits indesirables.
Quand le micrpohone et con récipient (1.a) sont déplacées longitudinalment à l'interieur de la cave résonnante (4), la réception changera entre sphérique (3.a), cardioide (3.b) a ipercardioide (Fig.4).

Claims

REVENDICATIONS
1. Un appareil pour la reception du son, composé par une cave résonnante (4) conténant un microphone (1.a), le microphone se déplace à l'intérieur de la cave résonnante en sens longitudinal de faςon de varier (3.a, 3.b) la directivité de réception de l'appreil de sphérique à ipercardioide.
2. Un appareil comme dans la revendication 1. caractérizé du faϊt que ie microphone est suspendu à l'intérieur de la cave résonnante au moyen de champs magnétiques (Fig.2) pour lui empêcher d'entrer en contacte avec les parois de la cave résonnante.
EP19840901056 1983-03-17 1984-03-19 Mikrophon mit veränderbarer öffnung Expired EP0140901B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84901056T ATE39317T1 (de) 1983-03-17 1984-03-19 Mikrophon mit veraenderbarer oeffnung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1462/83 1983-03-17
CH146283A CH646829A5 (it) 1983-03-17 1983-03-17 Apparecchio per la ricezione del suono a apertura variabile.

Publications (2)

Publication Number Publication Date
EP0140901A1 true EP0140901A1 (de) 1985-05-15
EP0140901B1 EP0140901B1 (de) 1988-12-14

Family

ID=4211040

Family Applications (2)

Application Number Title Priority Date Filing Date
EP84810128A Pending EP0134751A1 (de) 1983-03-17 1984-03-19 Mikrophon mit veränderbarer Öffnung
EP19840901056 Expired EP0140901B1 (de) 1983-03-17 1984-03-19 Mikrophon mit veränderbarer öffnung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP84810128A Pending EP0134751A1 (de) 1983-03-17 1984-03-19 Mikrophon mit veränderbarer Öffnung

Country Status (4)

Country Link
EP (2) EP0134751A1 (de)
CH (1) CH646829A5 (de)
DE (1) DE3475688D1 (de)
WO (1) WO1984003812A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3923740C1 (de) * 1989-07-18 1990-12-06 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE105942C (de) *
CH196704A (de) * 1937-05-26 1938-03-31 Hugo Meier Horchgerät zum Ermitteln von Geräuschen, insbesondere von herannahenden Flugzeugen.
FR1466506A (fr) * 1965-12-08 1967-01-20 Support pour microphone
US4028504A (en) * 1975-11-12 1977-06-07 Fred M. Dellorfano, Jr., And Donald P. Massa, Trustees Of The Stoneleigh Trust U/D/T Acoustic amplifier combined with transducer shock mount
DE2735104A1 (de) * 1977-08-04 1979-02-15 Braun Ag Mikrophon fuer tonfilmkamera

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8403812A1 *

Also Published As

Publication number Publication date
CH646829A5 (it) 1984-12-14
WO1984003812A1 (fr) 1984-09-27
EP0134751A1 (de) 1985-03-20
EP0140901B1 (de) 1988-12-14
DE3475688D1 (en) 1989-01-19

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