GB2290919B - Loudspeakers - Google Patents

Loudspeakers

Info

Publication number
GB2290919B
GB2290919B GB9511736A GB9511736A GB2290919B GB 2290919 B GB2290919 B GB 2290919B GB 9511736 A GB9511736 A GB 9511736A GB 9511736 A GB9511736 A GB 9511736A GB 2290919 B GB2290919 B GB 2290919B
Authority
GB
United Kingdom
Prior art keywords
loudspeakers
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 - Fee Related
Application number
GB9511736A
Other versions
GB2290919A (en
GB9511736D0 (en
Inventor
Jonathan Gregory Michael White
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9511736D0 publication Critical patent/GB9511736D0/en
Publication of GB2290919A publication Critical patent/GB2290919A/en
Application granted granted Critical
Publication of GB2290919B publication Critical patent/GB2290919B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means 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 
    • H04R1/28—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

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)
GB9511736A 1994-06-21 1995-06-09 Loudspeakers Expired - Fee Related GB2290919B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9412427A GB9412427D0 (en) 1994-06-21 1994-06-21 Loudspeakers

Publications (3)

Publication Number Publication Date
GB9511736D0 GB9511736D0 (en) 1995-08-02
GB2290919A GB2290919A (en) 1996-01-10
GB2290919B true GB2290919B (en) 1998-08-19

Family

ID=10757073

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9412427A Pending GB9412427D0 (en) 1994-06-21 1994-06-21 Loudspeakers
GB9511736A Expired - Fee Related GB2290919B (en) 1994-06-21 1995-06-09 Loudspeakers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9412427A Pending GB9412427D0 (en) 1994-06-21 1994-06-21 Loudspeakers

Country Status (1)

Country Link
GB (2) GB9412427D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2191147A1 (en) * 1996-11-25 1998-05-25 Patrice Ledoux Speaker system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1229451A (en) * 1968-01-18 1971-04-21
US4043855A (en) * 1974-03-01 1977-08-23 Compagnie Des Etablissements Dela Risle Multi-layer article and a process and an apparatus for its manufacture
US4433749A (en) * 1982-02-19 1984-02-28 Watkins William H Acoustic rear radiation absorption for loudspeaker systems
EP0111408A1 (en) * 1982-12-02 1984-06-20 Celestion International Limited Loudspeaker cabinets
GB2132853A (en) * 1982-09-07 1984-07-11 Andrew Jones Loudspeaker enclosure
US4506759A (en) * 1983-06-20 1985-03-26 Northern Telecom Limited Loudspeaker enclosure arrangement for voice communication terminals
WO1985003186A1 (en) * 1984-01-06 1985-07-18 Asquith, Anthony Loudspeaker system with boundary layer control
EP0191595A2 (en) * 1985-02-09 1986-08-20 B & W Loudspeakers Limited Improvements in or relating to loudspeaker enclosures
GB2222744A (en) * 1988-09-13 1990-03-14 B & W Loudspeakers Improvements in and relating to loudspeaker enclosures

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1229451A (en) * 1968-01-18 1971-04-21
US4043855A (en) * 1974-03-01 1977-08-23 Compagnie Des Etablissements Dela Risle Multi-layer article and a process and an apparatus for its manufacture
US4433749A (en) * 1982-02-19 1984-02-28 Watkins William H Acoustic rear radiation absorption for loudspeaker systems
GB2132853A (en) * 1982-09-07 1984-07-11 Andrew Jones Loudspeaker enclosure
EP0111408A1 (en) * 1982-12-02 1984-06-20 Celestion International Limited Loudspeaker cabinets
US4506759A (en) * 1983-06-20 1985-03-26 Northern Telecom Limited Loudspeaker enclosure arrangement for voice communication terminals
WO1985003186A1 (en) * 1984-01-06 1985-07-18 Asquith, Anthony Loudspeaker system with boundary layer control
EP0191595A2 (en) * 1985-02-09 1986-08-20 B & W Loudspeakers Limited Improvements in or relating to loudspeaker enclosures
GB2222744A (en) * 1988-09-13 1990-03-14 B & W Loudspeakers Improvements in and relating to loudspeaker enclosures

Also Published As

Publication number Publication date
GB2290919A (en) 1996-01-10
GB9511736D0 (en) 1995-08-02
GB9412427D0 (en) 1994-08-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000609