FR2770734B1 - Enceinte acoustique amelioree - Google Patents

Enceinte acoustique amelioree

Info

Publication number
FR2770734B1
FR2770734B1 FR9803245A FR9803245A FR2770734B1 FR 2770734 B1 FR2770734 B1 FR 2770734B1 FR 9803245 A FR9803245 A FR 9803245A FR 9803245 A FR9803245 A FR 9803245A FR 2770734 B1 FR2770734 B1 FR 2770734B1
Authority
FR
France
Prior art keywords
improved acoustic
acoustic speaker
speaker
improved
acoustic
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
FR9803245A
Other languages
English (en)
Other versions
FR2770734A1 (fr
Inventor
Gilles Bourgoin
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.)
Thomson Angers SAS
Original Assignee
Thomson Television Angers SA
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
Priority claimed from FR9713707A external-priority patent/FR2770733A1/fr
Application filed by Thomson Television Angers SA filed Critical Thomson Television Angers SA
Priority to FR9803245A priority Critical patent/FR2770734B1/fr
Publication of FR2770734A1 publication Critical patent/FR2770734A1/fr
Application granted granted Critical
Publication of FR2770734B1 publication Critical patent/FR2770734B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
    • H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
FR9803245A 1997-10-31 1998-03-17 Enceinte acoustique amelioree Expired - Fee Related FR2770734B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9803245A FR2770734B1 (fr) 1997-10-31 1998-03-17 Enceinte acoustique amelioree

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9713707A FR2770733A1 (fr) 1997-10-31 1997-10-31 Enceinte acoustique amelioree
FR9803245A FR2770734B1 (fr) 1997-10-31 1998-03-17 Enceinte acoustique amelioree

Publications (2)

Publication Number Publication Date
FR2770734A1 FR2770734A1 (fr) 1999-05-07
FR2770734B1 true FR2770734B1 (fr) 2002-12-13

Family

ID=26233910

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9803245A Expired - Fee Related FR2770734B1 (fr) 1997-10-31 1998-03-17 Enceinte acoustique amelioree

Country Status (1)

Country Link
FR (1) FR2770734B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018195836A1 (fr) * 2017-04-26 2018-11-01 大连理工大学 Structure d'isolation et d'absorption sonores ultra-mince à large bande commandant un trajet de propagation d'ondes sonores

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7426280B2 (en) 2001-01-02 2008-09-16 Bose Corporation Electroacoustic waveguide transducing
US8098867B2 (en) 2006-11-30 2012-01-17 Motorola Mobility, Inc. Attachable external acoustic chamber for a mobile device
US8180075B2 (en) 2007-04-26 2012-05-15 Motorola Mobility, Inc. Arrangement for variable bass reflex cavities
US8712086B2 (en) 2007-12-27 2014-04-29 Motorola Mobility Llc Acoustic reconfiguration devices and methods
US20090169040A1 (en) * 2007-12-27 2009-07-02 Motorola Inc Devices and methods for enhancing the frequency output of a portable audio device
US10536769B2 (en) 2016-05-02 2020-01-14 Dolby International Ab Sealed pipe-loaded loudspeaker for improving low frequency response in portable devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB337264A (en) * 1929-12-13 1930-10-30 Celestion Ltd Improvements relating to acoustic instruments
US2224919A (en) * 1937-03-31 1940-12-17 Rca Corp Loud-speaker
DE3214226C2 (de) * 1982-04-17 1987-02-26 Standard Elektrik Lorenz Ag, 7000 Stuttgart Lautsprecher mit Schallumwegleitung
JP3104073B2 (ja) * 1990-12-22 2000-10-30 ソニー株式会社 テレビジョン受像機のスピーカ装置
US5373564A (en) * 1992-10-02 1994-12-13 Spear; Robert J. Transmission line for planar waves
US6278789B1 (en) * 1993-05-06 2001-08-21 Bose Corporation Frequency selective acoustic waveguide damping

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018195836A1 (fr) * 2017-04-26 2018-11-01 大连理工大学 Structure d'isolation et d'absorption sonores ultra-mince à large bande commandant un trajet de propagation d'ondes sonores

Also Published As

Publication number Publication date
FR2770734A1 (fr) 1999-05-07

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20051130