SE0100285L - Akustisk absorbent - Google Patents

Akustisk absorbent

Info

Publication number
SE0100285L
SE0100285L SE0100285A SE0100285A SE0100285L SE 0100285 L SE0100285 L SE 0100285L SE 0100285 A SE0100285 A SE 0100285A SE 0100285 A SE0100285 A SE 0100285A SE 0100285 L SE0100285 L SE 0100285L
Authority
SE
Sweden
Prior art keywords
membrane
porous material
loudspeaker
polymeric porous
sintered polymeric
Prior art date
Application number
SE0100285A
Other languages
Unknown language ( )
English (en)
Other versions
SE522767C2 (sv
SE0100285D0 (sv
Inventor
Sune Gustafsson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE0100285A priority Critical patent/SE522767C2/sv
Publication of SE0100285D0 publication Critical patent/SE0100285D0/sv
Priority to PCT/EP2002/000642 priority patent/WO2002062099A1/en
Publication of SE0100285L publication Critical patent/SE0100285L/sv
Publication of SE522767C2 publication Critical patent/SE522767C2/sv

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
    • 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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • 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)
  • Details Of Audible-Bandwidth Transducers (AREA)
SE0100285A 2001-01-31 2001-01-31 Högtalararrangemang innefattande en akustisk absorbent SE522767C2 (sv)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0100285A SE522767C2 (sv) 2001-01-31 2001-01-31 Högtalararrangemang innefattande en akustisk absorbent
PCT/EP2002/000642 WO2002062099A1 (en) 2001-01-31 2002-01-23 Loudspeaker arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0100285A SE522767C2 (sv) 2001-01-31 2001-01-31 Högtalararrangemang innefattande en akustisk absorbent

Publications (3)

Publication Number Publication Date
SE0100285D0 SE0100285D0 (sv) 2001-01-31
SE0100285L true SE0100285L (sv) 2002-08-01
SE522767C2 SE522767C2 (sv) 2004-03-02

Family

ID=20282789

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0100285A SE522767C2 (sv) 2001-01-31 2001-01-31 Högtalararrangemang innefattande en akustisk absorbent

Country Status (2)

Country Link
SE (1) SE522767C2 (sv)
WO (1) WO2002062099A1 (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2293592A1 (en) 2009-09-01 2011-03-09 Nxp B.V. Acoustic material for a small loudspeaker cabinet

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127751A (en) * 1975-11-27 1978-11-28 Pioneer Electronic Corporation Loudspeaker with rigid foamed back-cavity
US4964482A (en) * 1989-02-23 1990-10-23 Meyer John E Loudspeaker enclosure
US5658656A (en) * 1992-01-10 1997-08-19 Minnesota Mining And Manufacturing Company Use of materials comprising microbubbles as acoustical barriers
US6266857B1 (en) * 1998-02-17 2001-07-31 Microsound Systems, Inc. Method of producing a backing structure for an ultrasound transceiver
DE69930188T2 (de) * 1998-11-05 2006-12-07 Matsushita Electric Industrial Co., Ltd., Kadoma Piezoelektrischer Lautsprecher,Verfahren zu seiner Herstellung,und Lautsprecherssystem mit diesem Lautsprecher

Also Published As

Publication number Publication date
SE522767C2 (sv) 2004-03-02
WO2002062099A1 (en) 2002-08-08
WO2002062099A9 (en) 2002-10-31
SE0100285D0 (sv) 2001-01-31

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Legal Events

Date Code Title Description
NUG Patent has lapsed