WO2001078450A1 - Membrane a relief accidente - Google Patents

Membrane a relief accidente Download PDF

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Publication number
WO2001078450A1
WO2001078450A1 PCT/FR2000/000883 FR0000883W WO0178450A1 WO 2001078450 A1 WO2001078450 A1 WO 2001078450A1 FR 0000883 W FR0000883 W FR 0000883W WO 0178450 A1 WO0178450 A1 WO 0178450A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
membrane
different
cavities
shapes
Prior art date
Application number
PCT/FR2000/000883
Other languages
English (en)
French (fr)
Inventor
Marc Charbonneaux
Pierre Piccaluga
Claude Annie Perrichon
Patrice Morchain
Original Assignee
Advance Technologie Audio Organisation Sa (Atao)
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 Advance Technologie Audio Organisation Sa (Atao) filed Critical Advance Technologie Audio Organisation Sa (Atao)
Priority to AU38259/00A priority Critical patent/AU3825900A/en
Priority to EP00917151A priority patent/EP1279317A1/fr
Priority to PCT/FR2000/000883 priority patent/WO2001078450A1/fr
Priority to JP2001575770A priority patent/JP2004517508A/ja
Publication of WO2001078450A1 publication Critical patent/WO2001078450A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems

Definitions

  • ACCIDENT RELIEF MEMBRANE It is known in the world of sound reproduction the use of electro-acoustic transducers. Their shapes are generally conical and possibly provided with a dome in the center of the cone. These electro-acoustic transducers are membranes emitting waves of sounds in a homogeneous shape over the entire surface of the cone. There is a decade, the membranes were provided with small cones inside the membrane itself, these cones being distributed in a regular and symmetrical manner. The anatomy of the human acoustic study shows us that the pavilion of the ear has shapes representing a certain rugged relief. This rugged relief rests on bumps and bumps distributed in an irregular manner. It should be noted that these reliefs create cavities, interdependent volumes, distinct from each other.
  • the shapes are often elongated or cylindrical.
  • the principle of hearing acuity consists of a pre-selection of sound waves created by the anatomy of the relief of the pinna. This analysis of the external anatomy of the ear invites us to pose the present process and its devices in accordance with biophysics.
  • the present method is to determine segmented, non-homogeneous, non-symmetrical cavities on the surface of an electro-acoustic transducer membrane. These open cavities in front of the membrane can be in communication with one another. The cavities of different size and shape are distributed in a non-symmetrical manner on the membrane. The principle of these differentiated open cavities is to have sensitive presets of the frequencies of different resonances between them.
  • a fully molded membrane can be considered, the front face and the rear face of which represent differentiated and complementary volumes, for example a bump on the front face corresponding to a hollow on the rear face.
  • These membranes with differentiated relief are useful for sound emission or sound reception, such as the preselection of frequencies for a microphone for recording sound waves. It is the presence of standing waves characterized by the presence of volumes that makes the natural selection of sound frequencies.
  • An apparatus according to the present process (Fig. 1 and Fig. 2 section AA) is an electro-acoustic transducer provided with a conical membrane (1) and its coil (2), all mounted on a bowl (3 ) in die-cast aluminum with its magnet (4).
  • the membrane on its front face receives partitions (5) which determine open cavities (6) of different shapes. These cavities of different volumes and shapes preselect different sound frequencies by natural resonance, which allows natural listening quality.
  • the device (Fig. 3) represents a shape of a membrane (1) of a millimeter thick in plastic molded according to the shape of the pavilion of an ear. This membrane receives on its rear face its integral winding (2), the mobile assembly is fixed on a bowl (3) with its magnet (4). This same membrane is also used to receive a microphone instead of its winding, which becomes an acoustic receiver, microphone for sound recording. The magnet being removed from the bowl.
  • the membranes can be made of moldable material, such as, for example, polymers, or fabric. Method and apparatus are useful for everyone in audio and audio-visual, from recording to sound reproduction.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
PCT/FR2000/000883 2000-04-07 2000-04-07 Membrane a relief accidente WO2001078450A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU38259/00A AU3825900A (en) 2000-04-07 2000-04-07 Membrane with embossed surface
EP00917151A EP1279317A1 (fr) 2000-04-07 2000-04-07 Membrane a relief accidente
PCT/FR2000/000883 WO2001078450A1 (fr) 2000-04-07 2000-04-07 Membrane a relief accidente
JP2001575770A JP2004517508A (ja) 2000-04-07 2000-04-07 浮き彫りにされた表面を有する膜

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR2000/000883 WO2001078450A1 (fr) 2000-04-07 2000-04-07 Membrane a relief accidente

Publications (1)

Publication Number Publication Date
WO2001078450A1 true WO2001078450A1 (fr) 2001-10-18

Family

ID=8846252

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2000/000883 WO2001078450A1 (fr) 2000-04-07 2000-04-07 Membrane a relief accidente

Country Status (4)

Country Link
EP (1) EP1279317A1 (ja)
JP (1) JP2004517508A (ja)
AU (1) AU3825900A (ja)
WO (1) WO2001078450A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200461189Y1 (ko) 2010-05-20 2012-06-26 (주)미래세움 청각기능 원리 이해를 위한 음성시스템

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0308931A2 (de) * 1987-09-25 1989-03-29 Siemens Aktiengesellschaft Ultraschallwandler mit astigmatischer Sende-/Empfangscharakteristik
US5031216A (en) * 1986-10-06 1991-07-09 Akg Akustische U. Kino-Gerate Gesellschaft M.B.H. Device for stereophonic recording of sound events
FR2688644A1 (fr) * 1992-03-11 1993-09-17 Blanchet Vincent Microphone a capteur fractionne.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5031216A (en) * 1986-10-06 1991-07-09 Akg Akustische U. Kino-Gerate Gesellschaft M.B.H. Device for stereophonic recording of sound events
EP0308931A2 (de) * 1987-09-25 1989-03-29 Siemens Aktiengesellschaft Ultraschallwandler mit astigmatischer Sende-/Empfangscharakteristik
FR2688644A1 (fr) * 1992-03-11 1993-09-17 Blanchet Vincent Microphone a capteur fractionne.

Also Published As

Publication number Publication date
JP2004517508A (ja) 2004-06-10
AU3825900A (en) 2001-10-23
EP1279317A1 (fr) 2003-01-29

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