BR9907145A - Dispositivos acústicos ativos que compreendem elementos de painel - Google Patents

Dispositivos acústicos ativos que compreendem elementos de painel

Info

Publication number
BR9907145A
BR9907145A BR9907145-2A BR9907145A BR9907145A BR 9907145 A BR9907145 A BR 9907145A BR 9907145 A BR9907145 A BR 9907145A BR 9907145 A BR9907145 A BR 9907145A
Authority
BR
Brazil
Prior art keywords
acoustic
panel elements
active
transducer
active acoustic
Prior art date
Application number
BR9907145-2A
Other languages
English (en)
Inventor
Farad Azima
Henry Azima
Martin Colloms
Graham Bank
Nicholas Patrick Roland Hill
Original Assignee
New Transducers Ltd
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 GBGB9801054.9A external-priority patent/GB9801054D0/en
Priority claimed from GBGB9801057.2A external-priority patent/GB9801057D0/en
Priority claimed from GBGB9811100.8A external-priority patent/GB9811100D0/en
Priority claimed from GBGB9813293.9A external-priority patent/GB9813293D0/en
Application filed by New Transducers Ltd filed Critical New Transducers Ltd
Publication of BR9907145A publication Critical patent/BR9907145A/pt

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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/26—Damping by means acting directly on free portion of diaphragm or cone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/05—Aspects relating to the positioning and way or means of mounting of exciters to resonant bending wave panels
    • 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

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

Patente de Invenção: <B>"DISPOSITIVOS ACúSTICOS ATIVOS QUE COMPREENDEM ELEMENTOS DE PAINEL"<D>. Um dispositivo acústico ativo compreende um elemento de painel (11) que possui distribuição de modos ressonantes de ação de onda fletora que determina desempenho acústico em conjunto com um dispositivo transdutor (31-34). O dispositivo transdutor (31-34) está acoplado ao elemento de painel (11) numa posição marginal. A disposição é tal que resulte em ação acusticamente aceitável que depende da referida distribuição dos referidos modos ressonantes ativos. Métodos de selecionar a localização de transdutor, ou aperfeiçoamento por localização de fixação por aperto marginal localizada, dependem da avaliação de interação relativamente melhor ou melhor de todas do referido dispositivo transdutor (31-34) e dos elementos de painel (11) de acordo com parâmetros de saída acústica para o dispositivo como um emissor acústico.
BR9907145-2A 1998-01-20 1999-01-15 Dispositivos acústicos ativos que compreendem elementos de painel BR9907145A (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GBGB9801054.9A GB9801054D0 (en) 1998-01-20 1998-01-20 Acoustic panels
GBGB9801057.2A GB9801057D0 (en) 1998-01-20 1998-01-20 Acoustic panels
GBGB9811100.8A GB9811100D0 (en) 1998-05-23 1998-05-23 Acoustic panels
GBGB9813293.9A GB9813293D0 (en) 1998-06-20 1998-06-20 Acoustic panels
PCT/GB1999/000143 WO1999037121A1 (en) 1998-01-20 1999-01-15 Active acoustic devices comprising panel members

Publications (1)

Publication Number Publication Date
BR9907145A true BR9907145A (pt) 2000-10-24

Family

ID=27451742

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9907145-2A BR9907145A (pt) 1998-01-20 1999-01-15 Dispositivos acústicos ativos que compreendem elementos de painel

Country Status (23)

Country Link
EP (2) EP1050190B1 (pt)
JP (1) JP4173283B2 (pt)
KR (1) KR100646191B1 (pt)
CN (1) CN1287766B (pt)
AR (1) AR014430A1 (pt)
AT (1) ATE280482T1 (pt)
AU (1) AU747693B2 (pt)
BG (1) BG104543A (pt)
BR (1) BR9907145A (pt)
CA (1) CA2318292A1 (pt)
DE (2) DE69839134T2 (pt)
EA (1) EA200000781A1 (pt)
HK (1) HK1029247A1 (pt)
HU (1) HUP0102858A3 (pt)
IL (1) IL136820A0 (pt)
NO (1) NO20003705L (pt)
NZ (1) NZ504133A (pt)
PL (1) PL341377A1 (pt)
SK (1) SK10822000A3 (pt)
TR (1) TR200002108T2 (pt)
TW (1) TW432889B (pt)
WO (1) WO1999037121A1 (pt)
YU (1) YU36800A (pt)

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US9906858B2 (en) 2013-10-22 2018-02-27 Bongiovi Acoustics Llc System and method for digital signal processing
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Also Published As

Publication number Publication date
KR20010024874A (ko) 2001-03-26
TR200002108T2 (tr) 2000-11-21
TW432889B (en) 2001-05-01
WO1999037121A1 (en) 1999-07-22
KR100646191B1 (ko) 2006-11-17
EP1414266A3 (en) 2006-08-16
EP1414266A2 (en) 2004-04-28
NO20003705L (no) 2000-09-20
DE69839134D1 (de) 2008-03-27
DE69921295T8 (de) 2006-07-06
DE69921295D1 (de) 2004-11-25
ATE280482T1 (de) 2004-11-15
HUP0102858A3 (en) 2003-03-28
HK1029247A1 (en) 2001-03-23
HUP0102858A2 (hu) 2001-12-28
EP1050190B1 (en) 2004-10-20
EA200000781A1 (ru) 2000-12-25
PL341377A1 (en) 2001-04-09
NO20003705D0 (no) 2000-07-19
JP2002510182A (ja) 2002-04-02
EP1414266B1 (en) 2008-02-13
BG104543A (bg) 2001-01-31
YU36800A (sh) 2002-03-18
SK10822000A3 (sk) 2000-12-11
NZ504133A (en) 2002-03-28
CN1287766B (zh) 2010-06-23
CN1287766A (zh) 2001-03-14
JP4173283B2 (ja) 2008-10-29
CA2318292A1 (en) 1999-07-22
AU747693B2 (en) 2002-05-16
AU2068199A (en) 1999-08-02
DE69921295T2 (de) 2006-02-09
IL136820A0 (en) 2001-06-14
DE69839134T2 (de) 2009-02-12
EP1050190A1 (en) 2000-11-08
AR014430A1 (es) 2001-02-28

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6A, 7A E 8A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1910 DE 14/08/2007.