GB2442377B - Non-planar transducer arrays - Google Patents

Non-planar transducer arrays

Info

Publication number
GB2442377B
GB2442377B GB0724440A GB0724440A GB2442377B GB 2442377 B GB2442377 B GB 2442377B GB 0724440 A GB0724440 A GB 0724440A GB 0724440 A GB0724440 A GB 0724440A GB 2442377 B GB2442377 B GB 2442377B
Authority
GB
United Kingdom
Prior art keywords
transducer arrays
planar transducer
planar
arrays
transducer
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
GB0724440A
Other versions
GB2442377A (en
GB0724440D0 (en
Inventor
Anthony Hooley
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
Priority claimed from GB0417712A external-priority patent/GB0417712D0/en
Priority claimed from GB0501879A external-priority patent/GB0501879D0/en
Application filed by 1 Ltd filed Critical 1 Ltd
Priority to GB0724440A priority Critical patent/GB2442377B/en
Priority claimed from GB0701741A external-priority patent/GB2431314B/en
Publication of GB0724440D0 publication Critical patent/GB0724440D0/en
Publication of GB2442377A publication Critical patent/GB2442377A/en
Application granted granted Critical
Publication of GB2442377B publication Critical patent/GB2442377B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/401—2D or 3D arrays of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Circuit For Audible Band Transducer (AREA)
GB0724440A 2004-08-10 2005-08-10 Non-planar transducer arrays Expired - Fee Related GB2442377B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0724440A GB2442377B (en) 2004-08-10 2005-08-10 Non-planar transducer arrays

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0417712A GB0417712D0 (en) 2004-08-10 2004-08-10 Non-Planar 2D and 3D array loudspeakers
GB0501879A GB0501879D0 (en) 2005-01-29 2005-01-29 Non-planar array apodization
GB0724440A GB2442377B (en) 2004-08-10 2005-08-10 Non-planar transducer arrays
GB0701741A GB2431314B (en) 2004-08-10 2005-08-10 Non-planar transducer arrays

Publications (3)

Publication Number Publication Date
GB0724440D0 GB0724440D0 (en) 2008-01-30
GB2442377A GB2442377A (en) 2008-04-02
GB2442377B true GB2442377B (en) 2008-09-24

Family

ID=39149158

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0724440A Expired - Fee Related GB2442377B (en) 2004-08-10 2005-08-10 Non-planar transducer arrays

Country Status (1)

Country Link
GB (1) GB2442377B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110687527A (en) * 2019-10-30 2020-01-14 海鹰企业集团有限责任公司 Method for improving directivity of wide-beam transmitting transducer and transducer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077552A (en) * 1980-05-21 1981-12-16 Smiths Industries Ltd Multi-frequency transducer elements
GB2094101A (en) * 1981-02-25 1982-09-08 Secr Defence Underwater acoustic devices
EP0521655A1 (en) * 1991-06-25 1993-01-07 Yugen Kaisha Taguchi Seisakusho A loudspeaker cluster
WO1995020214A1 (en) * 1994-01-25 1995-07-27 Lockheed Martin Corporation Polyhedral directional transducer array
WO1999041943A1 (en) * 1998-02-12 1999-08-19 Leonarz Terry R Loudspeaker with movable virtual point source

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077552A (en) * 1980-05-21 1981-12-16 Smiths Industries Ltd Multi-frequency transducer elements
GB2094101A (en) * 1981-02-25 1982-09-08 Secr Defence Underwater acoustic devices
EP0521655A1 (en) * 1991-06-25 1993-01-07 Yugen Kaisha Taguchi Seisakusho A loudspeaker cluster
WO1995020214A1 (en) * 1994-01-25 1995-07-27 Lockheed Martin Corporation Polyhedral directional transducer array
WO1999041943A1 (en) * 1998-02-12 1999-08-19 Leonarz Terry R Loudspeaker with movable virtual point source

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110687527A (en) * 2019-10-30 2020-01-14 海鹰企业集团有限责任公司 Method for improving directivity of wide-beam transmitting transducer and transducer

Also Published As

Publication number Publication date
GB2442377A (en) 2008-04-02
GB0724440D0 (en) 2008-01-30

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20130905 AND 20130911

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20140810