FR2791802A1 - Filtre mecanique pour systemes acoustiques et televiseur equipe de tels filtres - Google Patents

Filtre mecanique pour systemes acoustiques et televiseur equipe de tels filtres Download PDF

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Publication number
FR2791802A1
FR2791802A1 FR9903964A FR9903964A FR2791802A1 FR 2791802 A1 FR2791802 A1 FR 2791802A1 FR 9903964 A FR9903964 A FR 9903964A FR 9903964 A FR9903964 A FR 9903964A FR 2791802 A1 FR2791802 A1 FR 2791802A1
Authority
FR
France
Prior art keywords
horn
acoustic
mechanical filter
loudspeaker
opening
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.)
Pending
Application number
FR9903964A
Other languages
English (en)
French (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.)
Technicolor SA
Original Assignee
Thomson Multimedia 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
Application filed by Thomson Multimedia SA filed Critical Thomson Multimedia SA
Priority to FR9903964A priority Critical patent/FR2791802A1/fr
Priority to ES00201058T priority patent/ES2277814T3/es
Priority to EP00201058A priority patent/EP1041538B1/en
Priority to DE2000632407 priority patent/DE60032407T2/de
Priority to JP2000092101A priority patent/JP2000308175A/ja
Priority to CNB001048570A priority patent/CN1181673C/zh
Publication of FR2791802A1 publication Critical patent/FR2791802A1/fr
Pending 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 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/04—Acoustic filters ; Acoustic resonators
    • 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
    • H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type 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
    • 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
    • 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
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
    • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
FR9903964A 1999-03-30 1999-03-30 Filtre mecanique pour systemes acoustiques et televiseur equipe de tels filtres Pending FR2791802A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR9903964A FR2791802A1 (fr) 1999-03-30 1999-03-30 Filtre mecanique pour systemes acoustiques et televiseur equipe de tels filtres
ES00201058T ES2277814T3 (es) 1999-03-30 2000-03-22 Filtro mecanico para sistemas acusticos y televisor equipado con dicho filtro.
EP00201058A EP1041538B1 (en) 1999-03-30 2000-03-22 Mechanical filter for acoustic systems and television set equipped with such filters
DE2000632407 DE60032407T2 (de) 1999-03-30 2000-03-22 Mechanisches Filter für akustische Systeme sowie mit solchen Filter ausgerüstete Fernsehern
JP2000092101A JP2000308175A (ja) 1999-03-30 2000-03-29 メカニカルフィルタおよびテレビジョンセット
CNB001048570A CN1181673C (zh) 1999-03-30 2000-03-30 音响系统的机械滤波器及配备多个这种滤波器的电视装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9903964A FR2791802A1 (fr) 1999-03-30 1999-03-30 Filtre mecanique pour systemes acoustiques et televiseur equipe de tels filtres

Publications (1)

Publication Number Publication Date
FR2791802A1 true FR2791802A1 (fr) 2000-10-06

Family

ID=9543808

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9903964A Pending FR2791802A1 (fr) 1999-03-30 1999-03-30 Filtre mecanique pour systemes acoustiques et televiseur equipe de tels filtres

Country Status (6)

Country Link
EP (1) EP1041538B1 (ja)
JP (1) JP2000308175A (ja)
CN (1) CN1181673C (ja)
DE (1) DE60032407T2 (ja)
ES (1) ES2277814T3 (ja)
FR (1) FR2791802A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2819974A1 (fr) * 2001-01-24 2002-07-26 Thomson Licensing Sa Enceinte acoustique et appareil audiovisuel comportant une telle enceinte
WO2017152230A1 (en) 2016-03-08 2017-09-14 Chill Gaming Pty Ltd Gaming method, system and machine comprising multiple games
CN106162458A (zh) * 2016-07-19 2016-11-23 南京大学 一种扬声器声传导腔体装置
WO2018191770A1 (en) * 2017-04-19 2018-10-25 Chill Gaming Pty Ltd "audio system"
AU2018214028A1 (en) * 2017-04-19 2018-11-08 Chill Gaming Pty Ltd Audio system
CN109246539A (zh) * 2018-10-17 2019-01-18 无锡杰夫电声股份有限公司 一种加载弹性薄板的薄型扬声器箱
US11310587B2 (en) 2019-10-08 2022-04-19 Bose Corporation Horn loudspeakers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5479520A (en) * 1992-09-23 1995-12-26 U.S. Philips Corporation Loudspeaker system
US5524062A (en) * 1993-07-26 1996-06-04 Daewoo Electronics Co., Ltd. Speaker system for a televison set
US5710394A (en) * 1994-08-30 1998-01-20 Kabushiki Kaisha Toshiba Television set speaker system
JPH1066182A (ja) * 1996-08-21 1998-03-06 Matsushita Electric Ind Co Ltd スピーカ装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5432860A (en) * 1990-02-09 1995-07-11 Mitsubishi Denki Kabushiki Kaisha Speaker system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5479520A (en) * 1992-09-23 1995-12-26 U.S. Philips Corporation Loudspeaker system
US5524062A (en) * 1993-07-26 1996-06-04 Daewoo Electronics Co., Ltd. Speaker system for a televison set
US5710394A (en) * 1994-08-30 1998-01-20 Kabushiki Kaisha Toshiba Television set speaker system
JPH1066182A (ja) * 1996-08-21 1998-03-06 Matsushita Electric Ind Co Ltd スピーカ装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 08 30 June 1998 (1998-06-30) *

Also Published As

Publication number Publication date
DE60032407T2 (de) 2007-10-11
CN1270473A (zh) 2000-10-18
EP1041538A1 (en) 2000-10-04
EP1041538B1 (en) 2006-12-20
CN1181673C (zh) 2004-12-22
DE60032407D1 (de) 2007-02-01
JP2000308175A (ja) 2000-11-02
ES2277814T3 (es) 2007-08-01

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