FR2941122B1 - ACOUSTIC SPEAKER COMPRISING ONE OR MORE ACOUSTIC ABSORPTION MEANS - Google Patents

ACOUSTIC SPEAKER COMPRISING ONE OR MORE ACOUSTIC ABSORPTION MEANS

Info

Publication number
FR2941122B1
FR2941122B1 FR0950160A FR0950160A FR2941122B1 FR 2941122 B1 FR2941122 B1 FR 2941122B1 FR 0950160 A FR0950160 A FR 0950160A FR 0950160 A FR0950160 A FR 0950160A FR 2941122 B1 FR2941122 B1 FR 2941122B1
Authority
FR
France
Prior art keywords
acoustic
absorption means
speaker
acoustic absorption
acoustic speaker
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.)
Expired - Fee Related
Application number
FR0950160A
Other languages
French (fr)
Other versions
FR2941122A1 (en
Inventor
Gerald Kergourlay
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to FR0950160A priority Critical patent/FR2941122B1/en
Publication of FR2941122A1 publication Critical patent/FR2941122A1/en
Application granted granted Critical
Publication of FR2941122B1 publication Critical patent/FR2941122B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2823—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H04R1/2826—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material for loudspeaker transducers
FR0950160A 2009-01-13 2009-01-13 ACOUSTIC SPEAKER COMPRISING ONE OR MORE ACOUSTIC ABSORPTION MEANS Expired - Fee Related FR2941122B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0950160A FR2941122B1 (en) 2009-01-13 2009-01-13 ACOUSTIC SPEAKER COMPRISING ONE OR MORE ACOUSTIC ABSORPTION MEANS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0950160A FR2941122B1 (en) 2009-01-13 2009-01-13 ACOUSTIC SPEAKER COMPRISING ONE OR MORE ACOUSTIC ABSORPTION MEANS

Publications (2)

Publication Number Publication Date
FR2941122A1 FR2941122A1 (en) 2010-07-16
FR2941122B1 true FR2941122B1 (en) 2016-07-15

Family

ID=40921986

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0950160A Expired - Fee Related FR2941122B1 (en) 2009-01-13 2009-01-13 ACOUSTIC SPEAKER COMPRISING ONE OR MORE ACOUSTIC ABSORPTION MEANS

Country Status (1)

Country Link
FR (1) FR2941122B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150135427A (en) 2013-03-22 2015-12-02 캠포벨로 리미티드 An acoustic device
US11640816B1 (en) * 2022-02-23 2023-05-02 Acoustic Metamaterials LLC Metamaterial acoustic impedance matching device for headphone-type devices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH528197A (en) * 1971-12-20 1972-09-15 Ibm Housing arrangement with an electro-acoustic transducer, and use of the same in a telephone set of a communication system with PCM coding
US5012890A (en) * 1988-03-23 1991-05-07 Yamaha Corporation Acoustic apparatus
NL8902831A (en) * 1989-11-16 1991-06-17 Philips Nv SPEAKER SYSTEM CONTAINING A HELMHOLTZ RESONATOR COUPLED WITH AN ACOUSTIC TUBE.

Also Published As

Publication number Publication date
FR2941122A1 (en) 2010-07-16

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Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 8

ST Notification of lapse

Effective date: 20170929