TW432889B - Active acoustic devices - Google Patents

Active acoustic devices Download PDF

Info

Publication number
TW432889B
TW432889B TW088101010A TW88101010A TW432889B TW 432889 B TW432889 B TW 432889B TW 088101010 A TW088101010 A TW 088101010A TW 88101010 A TW88101010 A TW 88101010A TW 432889 B TW432889 B TW 432889B
Authority
TW
Taiwan
Prior art keywords
edge
sound
converter
patent application
scope
Prior art date
Application number
TW088101010A
Other languages
English (en)
Chinese (zh)
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 GBGB9801057.2A external-priority patent/GB9801057D0/en
Priority claimed from GBGB9801054.9A external-priority patent/GB9801054D0/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
Application granted granted Critical
Publication of TW432889B publication Critical patent/TW432889B/zh

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)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
TW088101010A 1998-01-20 1999-01-22 Active acoustic devices TW432889B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9801057.2A GB9801057D0 (en) 1998-01-20 1998-01-20 Acoustic panels
GBGB9801054.9A GB9801054D0 (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

Publications (1)

Publication Number Publication Date
TW432889B true TW432889B (en) 2001-05-01

Family

ID=27451742

Family Applications (1)

Application Number Title Priority Date Filing Date
TW088101010A TW432889B (en) 1998-01-20 1999-01-22 Active acoustic devices

Country Status (22)

Country Link
EP (2) EP1414266B1 (enExample)
JP (1) JP4173283B2 (enExample)
KR (1) KR100646191B1 (enExample)
CN (1) CN1287766B (enExample)
AR (1) AR014430A1 (enExample)
AT (1) ATE280482T1 (enExample)
AU (1) AU747693B2 (enExample)
BG (1) BG104543A (enExample)
BR (1) BR9907145A (enExample)
CA (1) CA2318292A1 (enExample)
DE (2) DE69921295T8 (enExample)
EA (1) EA200000781A1 (enExample)
HU (1) HUP0102858A3 (enExample)
IL (1) IL136820A0 (enExample)
NO (1) NO20003705L (enExample)
NZ (1) NZ504133A (enExample)
PL (1) PL341377A1 (enExample)
SK (1) SK10822000A3 (enExample)
TR (1) TR200002108T2 (enExample)
TW (1) TW432889B (enExample)
WO (1) WO1999037121A1 (enExample)
YU (1) YU36800A (enExample)

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WO2019070005A1 (ja) * 2017-10-04 2019-04-11 Ａｇｃ株式会社 ディスプレイ装置およびテレビジョン装置
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CN108510436B (zh) * 2018-03-28 2020-09-15 清华大学 一种冷冻电镜三维重构中重构参数搜索方法和系统
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US10959035B2 (en) 2018-08-02 2021-03-23 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function
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Also Published As

Publication number Publication date
DE69921295D1 (de) 2004-11-25
EA200000781A1 (ru) 2000-12-25
DE69921295T8 (de) 2006-07-06
ATE280482T1 (de) 2004-11-15
DE69839134D1 (de) 2008-03-27
HK1029247A1 (en) 2001-03-23
DE69839134T2 (de) 2009-02-12
CA2318292A1 (en) 1999-07-22
AR014430A1 (es) 2001-02-28
YU36800A (sh) 2002-03-18
EP1050190A1 (en) 2000-11-08
HUP0102858A3 (en) 2003-03-28
AU747693B2 (en) 2002-05-16
DE69921295T2 (de) 2006-02-09
CN1287766B (zh) 2010-06-23
NO20003705D0 (no) 2000-07-19
PL341377A1 (en) 2001-04-09
EP1414266A2 (en) 2004-04-28
EP1414266A3 (en) 2006-08-16
SK10822000A3 (sk) 2000-12-11
AU2068199A (en) 1999-08-02
JP2002510182A (ja) 2002-04-02
IL136820A0 (en) 2001-06-14
KR100646191B1 (ko) 2006-11-17
NO20003705L (no) 2000-09-20
HUP0102858A2 (hu) 2001-12-28
JP4173283B2 (ja) 2008-10-29
WO1999037121A1 (en) 1999-07-22
NZ504133A (en) 2002-03-28
KR20010024874A (ko) 2001-03-26
TR200002108T2 (tr) 2000-11-21
CN1287766A (zh) 2001-03-14
EP1050190B1 (en) 2004-10-20
EP1414266B1 (en) 2008-02-13
BR9907145A (pt) 2000-10-24
BG104543A (bg) 2001-01-31

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MK4A Expiration of patent term of an invention patent