PT1142445E - Altifalante de membrana para baixas frequencias - Google Patents

Altifalante de membrana para baixas frequencias

Info

Publication number
PT1142445E
PT1142445E PT99967891T PT99967891T PT1142445E PT 1142445 E PT1142445 E PT 1142445E PT 99967891 T PT99967891 T PT 99967891T PT 99967891 T PT99967891 T PT 99967891T PT 1142445 E PT1142445 E PT 1142445E
Authority
PT
Portugal
Prior art keywords
diaphragm
volume
frequency
loudspeaker
low frequencies
Prior art date
Application number
PT99967891T
Other languages
English (en)
Inventor
Norbert Schafer
Original Assignee
Norbert Schafer
Joachim Zurn
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 Norbert Schafer, Joachim Zurn filed Critical Norbert Schafer
Publication of PT1142445E publication Critical patent/PT1142445E/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
    • 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
PT99967891T 1998-12-21 1999-12-21 Altifalante de membrana para baixas frequencias PT1142445E (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19859046A DE19859046A1 (de) 1998-12-21 1998-12-21 Tiefton-Membranlautsprecher

Publications (1)

Publication Number Publication Date
PT1142445E true PT1142445E (pt) 2003-03-31

Family

ID=7891979

Family Applications (1)

Application Number Title Priority Date Filing Date
PT99967891T PT1142445E (pt) 1998-12-21 1999-12-21 Altifalante de membrana para baixas frequencias

Country Status (10)

Country Link
US (1) US20020012439A1 (pt)
EP (1) EP1142445B1 (pt)
JP (1) JP2003508937A (pt)
AT (1) ATE226781T1 (pt)
AU (1) AU2428700A (pt)
DE (3) DE19859046A1 (pt)
DK (1) DK1142445T3 (pt)
ES (1) ES2186434T3 (pt)
PT (1) PT1142445E (pt)
WO (1) WO2000038474A2 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7702114B2 (en) * 2003-09-16 2010-04-20 Koninklijke Philips Electronics N.V. High efficiency audio transducer
US7801320B2 (en) 2006-03-09 2010-09-21 Nokia Corporation Sound sponge for loudspeakers
JP4811367B2 (ja) * 2007-07-24 2011-11-09 ソニー株式会社 振動材、音声出力装置
JP5188839B2 (ja) * 2008-02-28 2013-04-24 株式会社ジャムコ フラットパネルスピーカー
US9301043B2 (en) * 2013-05-01 2016-03-29 Harman International Industries, Inc. Sealed speaker system having a pressure vent

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR192576A1 (es) * 1971-06-16 1973-02-28 Bertagni J Un diafragma para altoparlantes planos para acentuar las bajas frecuencias y cambiar el timbre y el color de sonido
US4481662A (en) * 1982-01-07 1984-11-06 Long Edward M Method and apparatus for operating a loudspeaker below resonant frequency
GB2206262A (en) * 1987-08-07 1988-12-29 Samsung Electronics Co Ltd Loud speaker
US4792978A (en) * 1987-08-28 1988-12-20 Marquiss Stanley L Planar loudspeaker system
JP2653219B2 (ja) * 1990-05-11 1997-09-17 松下電器産業株式会社 スピーカシステム
DE19601217C1 (de) * 1996-01-15 1997-07-24 Mark Iv Audio Deutschland Gmbh Baßreflexbox

Also Published As

Publication number Publication date
JP2003508937A (ja) 2003-03-04
DK1142445T3 (da) 2003-02-24
WO2000038474A2 (de) 2000-06-29
EP1142445B1 (de) 2002-10-23
ES2186434T3 (es) 2003-05-01
EP1142445A2 (de) 2001-10-10
US20020012439A1 (en) 2002-01-31
DE19859046A1 (de) 2000-07-20
AU2428700A (en) 2000-07-12
DE59903210D1 (de) 2002-11-28
ATE226781T1 (de) 2002-11-15
DE19982826D2 (de) 2002-01-03
WO2000038474A3 (de) 2000-11-23

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