TW213531B - - Google Patents

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Publication number
TW213531B
TW213531B TW082100038A TW82100038A TW213531B TW 213531 B TW213531 B TW 213531B TW 082100038 A TW082100038 A TW 082100038A TW 82100038 A TW82100038 A TW 82100038A TW 213531 B TW213531 B TW 213531B
Authority
TW
Taiwan
Prior art keywords
speaker
tube
frequency
sound
item
Prior art date
Application number
TW082100038A
Other languages
English (en)
Chinese (zh)
Original Assignee
Boston Acoustics Inc
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 Boston Acoustics Inc filed Critical Boston Acoustics Inc
Application granted granted Critical
Publication of TW213531B publication Critical patent/TW213531B/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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 

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
TW082100038A 1992-01-07 1993-01-05 TW213531B (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/817,524 US5689573A (en) 1992-01-07 1992-01-07 Frequency-dependent amplitude modification devices for acoustic sources

Publications (1)

Publication Number Publication Date
TW213531B true TW213531B (enExample) 1993-09-21

Family

ID=25223268

Family Applications (1)

Application Number Title Priority Date Filing Date
TW082100038A TW213531B (enExample) 1992-01-07 1993-01-05

Country Status (4)

Country Link
US (1) US5689573A (enExample)
EP (1) EP0553499A3 (enExample)
JP (1) JP2768612B2 (enExample)
TW (1) TW213531B (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827321A (en) * 1987-10-29 1989-05-02 General Electric Company Metal oxide semiconductor gated turn off thyristor including a schottky contact
JP2769448B2 (ja) * 1995-06-19 1998-06-25 政一郎 澤田 定在波又は特定波の低減装置
US6597795B1 (en) * 1998-11-25 2003-07-22 Stephen Swenson Device to improve loudspeaker enclosure duct
GB2365250C (en) 2000-07-21 2005-04-04 B & W Loudspeakers Acoustic structures
CA2463206C (en) * 2003-04-03 2009-08-04 Gennum Corporation Hearing instrument vent
US20070025572A1 (en) * 2005-08-01 2007-02-01 Forte James W Loudspeaker
TW200806065A (en) 2006-01-04 2008-01-16 Boston Acoustics Inc Audio speaker having a tweeter capable of continuous rotation
US8094861B2 (en) * 2008-06-18 2012-01-10 Nien-Tzu Liu Speaker
US8453788B2 (en) 2010-11-10 2013-06-04 International Business Machines Corporation Implementing dynamic noise elimination with acoustic frame design
US9301043B2 (en) * 2013-05-01 2016-03-29 Harman International Industries, Inc. Sealed speaker system having a pressure vent
US20190253806A1 (en) * 2018-02-15 2019-08-15 Alexander B. RALPH Ported tweeter
CN108869750A (zh) * 2018-08-16 2018-11-23 清华大学 可监测型机械密封装置
US11323798B1 (en) * 2021-06-23 2022-05-03 Acoustic Metamaterials LLC Metamaterial passive impedance matching device for a loudspeaker

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1969704A (en) * 1932-06-03 1934-08-07 D Alton Andre Acoustic device
US2234833A (en) * 1937-05-28 1941-03-11 Rca Corp Acoustical apparatus
US3467218A (en) * 1966-12-09 1969-09-16 Victor Company Of Japan Device for diffusing sounds
US3684051A (en) * 1970-10-08 1972-08-15 Herbert J Hopkins Acoustic duct speaker system
US3980154A (en) 1975-09-26 1976-09-14 Johnson Rubein V Cabinet for improving the sound output of an amplifier
GB1563511A (en) * 1976-03-19 1980-03-26 Harwood H Diaphragms for electroacoustic transducers
FR2359474A1 (fr) * 1976-07-20 1978-02-17 Cit Alcatel Procede de realisation d'un filtre mecanique et filtre mecanique
US4142603A (en) * 1976-11-22 1979-03-06 Johnson Rubein V Adjustable speaker cabinet
IT1086464B (it) * 1977-09-06 1985-05-28 Selmin Sas Metodo e dispositivi per l'irradiazione omnidirezionale di onde acustiche
US4284166A (en) * 1979-04-13 1981-08-18 Gale George A Port devices for bass-reflex speaker enclosures
JPS56105986U (enExample) * 1980-01-17 1981-08-18
US4421957A (en) * 1981-06-15 1983-12-20 Bell Telephone Laboratories, Incorporated End-fire microphone and loudspeaker structures
JPS58130698A (ja) * 1982-01-29 1983-08-04 Hitachi Ltd スピ−カ
GB8617953D0 (en) * 1986-07-23 1986-08-28 Wehner R Microphone & loudspeaker system
US4800983A (en) * 1987-01-13 1989-01-31 Geren David K Energized acoustic labyrinth
FR2616994B1 (fr) * 1987-06-22 1989-11-24 Coudoux Christian Enceintes acoustiques a tres hautes performances
JPH01107289U (enExample) * 1988-01-08 1989-07-19
JP2568675Y2 (ja) * 1988-07-22 1998-04-15 ヤマハ株式会社 音響装置
US4903300A (en) * 1989-01-05 1990-02-20 Polk Investment Corporation Compact and efficient sub-woofer system and method for installation in structural partitions
US4924963A (en) * 1989-01-05 1990-05-15 Polk Investment Corp. Compact and efficient sub-woofer system and method for installation in structural partitions

Also Published As

Publication number Publication date
EP0553499A3 (en) 1994-05-18
JP2768612B2 (ja) 1998-06-25
JPH05316584A (ja) 1993-11-26
US5689573A (en) 1997-11-18
EP0553499A2 (en) 1993-08-04

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