GB2443228B - Piezo-electric loudspeaker - Google Patents

Piezo-electric loudspeaker

Info

Publication number
GB2443228B
GB2443228B GB0621218A GB0621218A GB2443228B GB 2443228 B GB2443228 B GB 2443228B GB 0621218 A GB0621218 A GB 0621218A GB 0621218 A GB0621218 A GB 0621218A GB 2443228 B GB2443228 B GB 2443228B
Authority
GB
United Kingdom
Prior art keywords
piezo
electric loudspeaker
loudspeaker
electric
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
GB0621218A
Other versions
GB0621218D0 (en
GB2443228A (en
Inventor
Gary Paul Nicholson
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
Priority to GB0621218A priority Critical patent/GB2443228B/en
Publication of GB0621218D0 publication Critical patent/GB0621218D0/en
Priority to PCT/GB2007/004067 priority patent/WO2008050123A1/en
Publication of GB2443228A publication Critical patent/GB2443228A/en
Application granted granted Critical
Publication of GB2443228B publication Critical patent/GB2443228B/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
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • 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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • 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
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
    • 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 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
GB0621218A 2006-10-25 2006-10-25 Piezo-electric loudspeaker Expired - Fee Related GB2443228B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0621218A GB2443228B (en) 2006-10-25 2006-10-25 Piezo-electric loudspeaker
PCT/GB2007/004067 WO2008050123A1 (en) 2006-10-25 2007-10-25 Loudspeakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0621218A GB2443228B (en) 2006-10-25 2006-10-25 Piezo-electric loudspeaker

Publications (3)

Publication Number Publication Date
GB0621218D0 GB0621218D0 (en) 2006-12-06
GB2443228A GB2443228A (en) 2008-04-30
GB2443228B true GB2443228B (en) 2010-02-10

Family

ID=37545954

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0621218A Expired - Fee Related GB2443228B (en) 2006-10-25 2006-10-25 Piezo-electric loudspeaker

Country Status (2)

Country Link
GB (1) GB2443228B (en)
WO (1) WO2008050123A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102959992B (en) * 2010-07-23 2016-10-19 日本电气株式会社 Agitator and electronic equipment
CN113365192A (en) * 2020-03-06 2021-09-07 华为技术有限公司 Piezoelectric speaker and electronic apparatus
CN117857985A (en) * 2022-09-30 2024-04-09 华为技术有限公司 Speaker and electronic device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1159337A (en) * 1966-06-13 1969-07-23 Motorola Inc Piezoelectric Transducers
JPS59117900A (en) * 1982-12-25 1984-07-07 Murata Mfg Co Ltd Piezoelectric speaker
JPS61158300A (en) * 1984-12-29 1986-07-17 Sony Corp Piezoelectric speaker
JP2000350279A (en) * 1999-06-01 2000-12-15 Shinsei Kk Horn speaker
US20010033124A1 (en) * 2000-03-28 2001-10-25 Norris Elwood G. Horn array emitter

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE358497A (en) * 1925-01-09
IT1086464B (en) * 1977-09-06 1985-05-28 Selmin Sas METHOD AND DEVICES FOR OMNIDIRECTIONAL IRRADIATION OF SOUND WAVES
JPS59501289A (en) * 1982-07-19 1984-07-19 クラ−ク，アンソニ−　バ−ナ−ド electromagnetic acoustic transducer
US4836327A (en) * 1986-11-12 1989-06-06 Turbosound Limited Sound reinforcement enclosure employing cone loudspeaker with annular central loading member and coaxially mounted compression driver
US5627903A (en) * 1993-10-06 1997-05-06 Chain Reactions, Inc. Variable geometry electromagnetic transducer
DE19603002C1 (en) * 1996-01-27 1997-05-22 Martin Kling Loudspeaker with phase correction device
ATE448648T1 (en) * 2000-09-22 2009-11-15 Robert Michael Grunberg DIRECT COUPLING OF WAVEGUIDES TO A COMPRESSION DRIVER WITH MATCHING SLOT-SHAPED NECKS
GB0202284D0 (en) * 2002-01-31 2002-03-20 Martin Audio Ltd Directional loudspeaker
FI120126B (en) * 2004-04-30 2009-06-30 Aura Audio Oy Procedure for providing a smooth sound wavefront and plane wave director, speaker construction and acoustic line radiator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1159337A (en) * 1966-06-13 1969-07-23 Motorola Inc Piezoelectric Transducers
JPS59117900A (en) * 1982-12-25 1984-07-07 Murata Mfg Co Ltd Piezoelectric speaker
JPS61158300A (en) * 1984-12-29 1986-07-17 Sony Corp Piezoelectric speaker
JP2000350279A (en) * 1999-06-01 2000-12-15 Shinsei Kk Horn speaker
US20010033124A1 (en) * 2000-03-28 2001-10-25 Norris Elwood G. Horn array emitter

Also Published As

Publication number Publication date
GB0621218D0 (en) 2006-12-06
WO2008050123A1 (en) 2008-05-02
GB2443228A (en) 2008-04-30

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Legal Events

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

Effective date: 20181025

S28 Restoration of ceased patents (sect. 28/pat. act 1977)

Free format text: APPLICATION FILED

S28 Restoration of ceased patents (sect. 28/pat. act 1977)

Free format text: RESTORATION ALLOWED

Effective date: 20190729

746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20230303

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20221025