GB1390002A - Loudspeakers - Google Patents

Loudspeakers

Info

Publication number
GB1390002A
GB1390002A GB326273A GB326273A GB1390002A GB 1390002 A GB1390002 A GB 1390002A GB 326273 A GB326273 A GB 326273A GB 326273 A GB326273 A GB 326273A GB 1390002 A GB1390002 A GB 1390002A
Authority
GB
United Kingdom
Prior art keywords
unit
loud
section
cabinet
closed
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.)
Expired
Application number
GB326273A
Other languages
English (en)
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.)
Bastedt J E
Tykesson B J T
Original Assignee
Bastedt J E
Tykesson B J T
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 Bastedt J E, Tykesson B J T filed Critical Bastedt J E
Publication of GB1390002A publication Critical patent/GB1390002A/en
Expired 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 
    • H04R1/28—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
    • 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 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
GB326273A 1972-02-29 1973-01-22 Loudspeakers Expired GB1390002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE02475/72A SE358800B (enrdf_load_stackoverflow) 1972-02-29 1972-02-29

Publications (1)

Publication Number Publication Date
GB1390002A true GB1390002A (en) 1975-04-09

Family

ID=20260024

Family Applications (1)

Application Number Title Priority Date Filing Date
GB326273A Expired GB1390002A (en) 1972-02-29 1973-01-22 Loudspeakers

Country Status (6)

Country Link
US (1) US3768589A (enrdf_load_stackoverflow)
DE (1) DE2303799B2 (enrdf_load_stackoverflow)
GB (1) GB1390002A (enrdf_load_stackoverflow)
NL (1) NL7302776A (enrdf_load_stackoverflow)
NO (1) NO129070B (enrdf_load_stackoverflow)
SE (1) SE358800B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290672A (en) * 1995-09-08 1996-01-03 B & W Loudspeakers Loudspeaker systems

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882962A (en) * 1973-10-03 1975-05-13 Warren Ripple Loudspeaker equipment
DE2618352A1 (de) * 1975-10-28 1977-11-17 Manfred Dipl Ing Zippel Lautsprechereinheit
DE2548095C2 (de) * 1975-10-28 1985-05-09 Manfred Dipl.-Ing. 7250 Leonberg Zippel Lautsprechereinheit
US4501934A (en) * 1983-07-18 1985-02-26 W2 Vehicle Design And Development Loudspeaker system
USD319446S (en) 1989-03-18 1991-08-27 Yamaha Corporation Loudspeaker
US5286928A (en) * 1993-04-12 1994-02-15 Borland Nathan J Tunable speaker tube
DE19710967C1 (de) * 1997-03-17 1998-10-22 Karl Heinz Koeppen Breitbandlautsprecher
US6771787B1 (en) * 1998-09-03 2004-08-03 Bose Corporation Waveguide electroacoustical transducing
US8295526B2 (en) * 2008-02-21 2012-10-23 Bose Corporation Low frequency enclosure for video display devices
US8351629B2 (en) * 2008-02-21 2013-01-08 Robert Preston Parker Waveguide electroacoustical transducing
US8351630B2 (en) * 2008-05-02 2013-01-08 Bose Corporation Passive directional acoustical radiating
US8265310B2 (en) * 2010-03-03 2012-09-11 Bose Corporation Multi-element directional acoustic arrays
US8553894B2 (en) 2010-08-12 2013-10-08 Bose Corporation Active and passive directional acoustic radiating
US10057701B2 (en) 2015-03-31 2018-08-21 Bose Corporation Method of manufacturing a loudspeaker
US9451355B1 (en) 2015-03-31 2016-09-20 Bose Corporation Directional acoustic device
US11128941B1 (en) * 2018-11-20 2021-09-21 Edward G. Blemel Method for passive dissipation of deconstructive harmonics during audio amplification and reproduction

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB653263A (en) * 1947-10-30 1951-05-09 C M C Switchmatic Ltd Improvements in mountings for loudspeakers
US2775309A (en) * 1954-03-15 1956-12-25 Acoustic Res Inc Sound translating devices
DE1074651B (de) * 1956-03-08 1960-02-04 Deutsche Post Betnebslaboratorium fur Rundfunk und Fernsehen Ber Im Adlershof Anordnung zur Er zielung der Erweiterung des Frequenz bereiches in Richtung der tieferen Frc quenzen bei akustischen Strahlern
US3393766A (en) * 1966-05-18 1968-07-23 American District Telegraph Co Speaker system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290672A (en) * 1995-09-08 1996-01-03 B & W Loudspeakers Loudspeaker systems

Also Published As

Publication number Publication date
NL7302776A (enrdf_load_stackoverflow) 1973-08-31
DE2303799B2 (de) 1975-05-07
SE358800B (enrdf_load_stackoverflow) 1973-08-06
NO129070B (enrdf_load_stackoverflow) 1974-02-18
DE2303799A1 (de) 1973-09-13
US3768589A (en) 1973-10-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees