GB8402759D0 - Piezoelectric electro-acoustic transducer - Google Patents

Piezoelectric electro-acoustic transducer

Info

Publication number
GB8402759D0
GB8402759D0 GB848402759A GB8402759A GB8402759D0 GB 8402759 D0 GB8402759 D0 GB 8402759D0 GB 848402759 A GB848402759 A GB 848402759A GB 8402759 A GB8402759 A GB 8402759A GB 8402759 D0 GB8402759 D0 GB 8402759D0
Authority
GB
United Kingdom
Prior art keywords
acoustic transducer
piezoelectric electro
piezoelectric
electro
acoustic
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.)
Granted
Application number
GB848402759A
Other versions
GB2153627B (en
GB2153627A (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.)
Plessey Co Ltd
Original Assignee
Plessey Co 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB08402759A priority Critical patent/GB2153627B/en
Publication of GB8402759D0 publication Critical patent/GB8402759D0/en
Publication of GB2153627A publication Critical patent/GB2153627A/en
Application granted granted Critical
Publication of GB2153627B publication Critical patent/GB2153627B/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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
GB08402759A 1984-02-02 1984-02-02 Piezoelectric electroacoustic transducer Expired GB2153627B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08402759A GB2153627B (en) 1984-02-02 1984-02-02 Piezoelectric electroacoustic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08402759A GB2153627B (en) 1984-02-02 1984-02-02 Piezoelectric electroacoustic transducer

Publications (3)

Publication Number Publication Date
GB8402759D0 true GB8402759D0 (en) 1984-03-07
GB2153627A GB2153627A (en) 1985-08-21
GB2153627B GB2153627B (en) 1988-04-20

Family

ID=10555962

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08402759A Expired GB2153627B (en) 1984-02-02 1984-02-02 Piezoelectric electroacoustic transducer

Country Status (1)

Country Link
GB (1) GB2153627B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8625686D0 (en) * 1986-10-27 1986-11-26 Ministry Of Agriculture Fisher Assessing processing strains
FR2920013B1 (en) * 2007-08-16 2010-01-22 Renault Sas MOTOR VEHICLE ELEMENT COMPRISING MEANS FOR GENERATING AUDIBLE VIBRATIONS AND METHOD OF MANUFACTURING SUCH A MEMBER
JP5599858B2 (en) * 2011-09-30 2014-10-01 富士フイルム株式会社 Electroacoustic conversion film, flexible display, vocal cord microphone and instrument sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4829420A (en) * 1971-08-20 1973-04-19

Also Published As

Publication number Publication date
GB2153627B (en) 1988-04-20
GB2153627A (en) 1985-08-21

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee