WO2012073262A3 - "a device for sound reproduction with coaxial acoustic actuators" - Google Patents

"a device for sound reproduction with coaxial acoustic actuators" Download PDF

Info

Publication number
WO2012073262A3
WO2012073262A3 PCT/IT2010/000478 IT2010000478W WO2012073262A3 WO 2012073262 A3 WO2012073262 A3 WO 2012073262A3 IT 2010000478 W IT2010000478 W IT 2010000478W WO 2012073262 A3 WO2012073262 A3 WO 2012073262A3
Authority
WO
WIPO (PCT)
Prior art keywords
sound reproduction
acoustic
acoustic actuators
actuators
acoustic actuator
Prior art date
Application number
PCT/IT2010/000478
Other languages
French (fr)
Other versions
WO2012073262A2 (en
Inventor
Ferruccio Resta
Francesco Castelli Dezza
Simone Cinquemani
Francesco Braghin
Matteo Cibelli
Original Assignee
Politecnico Di Milano
Esarc Hi-Tech S.R.L.
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 Politecnico Di Milano, Esarc Hi-Tech S.R.L. filed Critical Politecnico Di Milano
Priority to PCT/IT2010/000478 priority Critical patent/WO2012073262A2/en
Publication of WO2012073262A2 publication Critical patent/WO2012073262A2/en
Publication of WO2012073262A3 publication Critical patent/WO2012073262A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/02—Transducers using more than one principle simultaneously
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R15/00—Magnetostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Headphones And Earphones (AREA)

Abstract

A device for sound reproduction (1) comprising: a first acoustic actuator (2) a second acoustic actuator (4), wherein the first and the second acoustic actuators (2, 4) are arranged coaxially to each other. Furthermore: the second acoustic actuator (4) is arranged substantially within the first acoustic actuator (2), the device comprises a connection structure (6) through which the first acoustic actuator (2) and the second acoustic actuator (4) are connected to each other, the connection structure (6) comprises elastic elements (68, 98) which connect and support one with respect to the other the first and the second acoustic actuators (2, 4).
PCT/IT2010/000478 2010-12-01 2010-12-01 "a device for sound reproduction with coaxial acoustic actuators" WO2012073262A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2010/000478 WO2012073262A2 (en) 2010-12-01 2010-12-01 "a device for sound reproduction with coaxial acoustic actuators"

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2010/000478 WO2012073262A2 (en) 2010-12-01 2010-12-01 "a device for sound reproduction with coaxial acoustic actuators"

Publications (2)

Publication Number Publication Date
WO2012073262A2 WO2012073262A2 (en) 2012-06-07
WO2012073262A3 true WO2012073262A3 (en) 2012-12-20

Family

ID=44625079

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2010/000478 WO2012073262A2 (en) 2010-12-01 2010-12-01 "a device for sound reproduction with coaxial acoustic actuators"

Country Status (1)

Country Link
WO (1) WO2012073262A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021176483A1 (en) * 2020-03-05 2021-09-10 Idea Srl Acoustic transmitter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720868A (en) * 1984-09-03 1988-01-19 Sanden Corporation Dynamic transducer device
JPH04313999A (en) * 1991-01-18 1992-11-05 Onkyo Corp Speaker employing ultra magnetostrictive vibrator
US5357232A (en) * 1991-12-12 1994-10-18 Tdk Corporation Magnetostrictive element
EP2023660A1 (en) * 2006-05-29 2009-02-11 Sony Corporation Hybrid actuator, loudspeaker and sound output method
WO2010128488A1 (en) * 2009-05-08 2010-11-11 Esarc Hi-Tech S.R.L. A device for sound reproduction with a mouldable support

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720868A (en) * 1984-09-03 1988-01-19 Sanden Corporation Dynamic transducer device
JPH04313999A (en) * 1991-01-18 1992-11-05 Onkyo Corp Speaker employing ultra magnetostrictive vibrator
US5357232A (en) * 1991-12-12 1994-10-18 Tdk Corporation Magnetostrictive element
EP2023660A1 (en) * 2006-05-29 2009-02-11 Sony Corporation Hybrid actuator, loudspeaker and sound output method
WO2010128488A1 (en) * 2009-05-08 2010-11-11 Esarc Hi-Tech S.R.L. A device for sound reproduction with a mouldable support

Also Published As

Publication number Publication date
WO2012073262A2 (en) 2012-06-07

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