GB2386026B - Loudspeaker - Google Patents

Loudspeaker

Info

Publication number
GB2386026B
GB2386026B GB0204716A GB0204716A GB2386026B GB 2386026 B GB2386026 B GB 2386026B GB 0204716 A GB0204716 A GB 0204716A GB 0204716 A GB0204716 A GB 0204716A GB 2386026 B GB2386026 B GB 2386026B
Authority
GB
United Kingdom
Prior art keywords
loudspeaker
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
GB0204716A
Other versions
GB2386026A (en
GB0204716D0 (en
Inventor
Simon Longbottom
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.)
1 Ltd
Original Assignee
1 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
Application filed by 1 Ltd filed Critical 1 Ltd
Priority to GB0204716A priority Critical patent/GB2386026B/en
Publication of GB0204716D0 publication Critical patent/GB0204716D0/en
Publication of GB2386026A publication Critical patent/GB2386026A/en
Application granted granted Critical
Publication of GB2386026B publication Critical patent/GB2386026B/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • 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
    • H04R2217/00—Details of magnetostrictive, piezoelectric, or electrostrictive transducers covered by H04R15/00 or H04R17/00 but not provided for in any of their subgroups
    • H04R2217/01—Non-planar magnetostrictive, piezoelectric or electrostrictive benders
GB0204716A 2002-02-28 2002-02-28 Loudspeaker Expired - Fee Related GB2386026B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0204716A GB2386026B (en) 2002-02-28 2002-02-28 Loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0204716A GB2386026B (en) 2002-02-28 2002-02-28 Loudspeaker

Publications (3)

Publication Number Publication Date
GB0204716D0 GB0204716D0 (en) 2002-04-17
GB2386026A GB2386026A (en) 2003-09-03
GB2386026B true GB2386026B (en) 2005-06-08

Family

ID=9931982

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0204716A Expired - Fee Related GB2386026B (en) 2002-02-28 2002-02-28 Loudspeaker

Country Status (1)

Country Link
GB (1) GB2386026B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0220750D0 (en) * 2002-09-06 2002-10-16 1 Ltd Rugged electroactive loudspeaker design
GB0324051D0 (en) * 2003-10-14 2003-11-19 1 Ltd Loudspeaker
DE102017105594A1 (en) * 2017-03-16 2018-09-20 USound GmbH Amplifier unit for a sound transducer and sound generation unit

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB311486A (en) * 1928-02-27 1929-05-16 British Thomson Houston Co Ltd Improvements relating to electro-magnetic acoustic devices for the interconversion of mechanical and electric oscillations, such as loud-speakers
GB308318A (en) * 1928-03-21 1930-06-19 Marconi Wireless Telegraph Co Improvements in or relating to acoustic devices
GB623205A (en) * 1943-06-07 1949-05-13 Standard Telephones Cables Ltd Improvements in or relating to loudspeakers
GB665815A (en) * 1945-01-02 1952-01-30 Marconi Wireless Telegraph Co Improvements in sound reproducing devices
WO1998052381A2 (en) * 1997-05-15 1998-11-19 New Transducers Limited Panel-form loudspeakers
WO2003001841A2 (en) * 2001-06-21 2003-01-03 1... Limited Loudspeaker

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB311486A (en) * 1928-02-27 1929-05-16 British Thomson Houston Co Ltd Improvements relating to electro-magnetic acoustic devices for the interconversion of mechanical and electric oscillations, such as loud-speakers
GB308318A (en) * 1928-03-21 1930-06-19 Marconi Wireless Telegraph Co Improvements in or relating to acoustic devices
GB623205A (en) * 1943-06-07 1949-05-13 Standard Telephones Cables Ltd Improvements in or relating to loudspeakers
GB665815A (en) * 1945-01-02 1952-01-30 Marconi Wireless Telegraph Co Improvements in sound reproducing devices
WO1998052381A2 (en) * 1997-05-15 1998-11-19 New Transducers Limited Panel-form loudspeakers
WO2003001841A2 (en) * 2001-06-21 2003-01-03 1... Limited Loudspeaker

Also Published As

Publication number Publication date
GB2386026A (en) 2003-09-03
GB0204716D0 (en) 2002-04-17

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Legal Events

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

Effective date: 20170228