EP0134751A1 - Microphone à ouverture variable - Google Patents

Microphone à ouverture variable Download PDF

Info

Publication number: EP0134751A1
Authority: EP; European Patent Office
Prior art keywords: microphone; cellar; resonant; reception; adjustable aperture
Prior art date: 1983-03-17
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.): Pending

Application number

EP84810128A

Other languages

German (de)

English (en)

French (fr)

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.)

1983-03-17

Filing date

1984-03-19

Publication date

1985-03-20

1984-03-19 Application filed by Individual filed Critical Individual

1985-03-20 Publication of EP0134751A1 publication Critical patent/EP0134751A1/fr

Status Pending legal-status Critical Current

Links

Images

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

These devices are composed of a microphone placed at the rear bottom of a resonant cellar, the length of which determines the opening of the field of sound reception of the microphone.
the resonant cellar should be changed with each variation.
the solution is to place a microphone capable of tracking variations in the camera's field of view on the same so as to be coaxial with the check line.
This device consists of a microphone capsule (l.a) placed in a body which is at the same time suspended in a resonant cellar (4) with magnetic fields (Fig. 2)
This suspension prevents each friction between the microphone and its container and the resonant cellar, avoiding unwanted noise.

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)

EP84810128A 1983-03-17 1984-03-19 Microphone à ouverture variable Pending EP0134751A1 (fr)

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 (1)

Publication Number	Publication Date
EP0134751A1 true EP0134751A1 (fr)	1985-03-20

Family

ID=4211040

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
EP84810128A Pending EP0134751A1 (fr)	1983-03-17	1984-03-19	Microphone à ouverture variable
EP19840901056 Expired EP0140901B1 (fr)	1983-03-17	1984-03-19	Microphone a ouverture variable

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
EP19840901056 Expired EP0140901B1 (fr)	1983-03-17	1984-03-19	Microphone a ouverture variable

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2234137B (en) *	1989-07-18	1994-01-12	Messerschmitt Boelkow Blohm	A device for the detection and location of sound waves

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE105942C (it) *
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

1983
- 1983-03-17 CH CH146283A patent/CH646829A5/it not_active IP Right Cessation
1984
- 1984-03-19 WO PCT/CH1984/000048 patent/WO1984003812A1/de not_active Ceased
- 1984-03-19 EP EP84810128A patent/EP0134751A1/fr active Pending
- 1984-03-19 EP EP19840901056 patent/EP0140901B1/fr not_active Expired
- 1984-03-19 DE DE8484901056T patent/DE3475688D1/de not_active Expired

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE105942C (it) *
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2234137B (en) *	1989-07-18	1994-01-12	Messerschmitt Boelkow Blohm	A device for the detection and location of sound waves

Also Published As

Publication number	Publication date
CH646829A5 (it)	1984-12-14
WO1984003812A1 (fr)	1984-09-27
EP0140901A1 (fr)	1985-05-15
EP0140901B1 (fr)	1988-12-14
DE3475688D1 (en)	1989-01-19

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Legal Events

Date	Code	Title	Description
1985-01-19	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1985-03-20	AK	Designated contracting states	Designated state(s): IT
1985-07-19	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
1985-09-18	17P	Request for examination filed	Effective date: 19850515
1986-07-23	XX	Miscellaneous (additional remarks)	Free format text: VERFAHREN ABGESCHLOSSEN INFOLGE VERBINDUNG MIT 84901056.6/0140901 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) VOM 04.06.86.