HK76087A - Electro-acoustic transducers - Google Patents

Electro-acoustic transducers

Info

Publication number
HK76087A
HK76087A HK76087A HK76087A HK76087A HK 76087 A HK76087 A HK 76087A HK 76087 A HK76087 A HK 76087A HK 76087 A HK76087 A HK 76087A HK 76087 A HK76087 A HK 76087A
Authority
HK
Hong Kong
Prior art keywords
electro
acoustic transducers
transducers
acoustic
Prior art date
Application number
HK76087A
Other languages
English (en)
Inventor
Leslie Eugene Dymoke-Bradshaw
Denis Gregory Turville
Hugh Mervin Banks
Michael George Ibbotson
Original Assignee
Stc Plc
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 Stc Plc filed Critical Stc Plc
Publication of HK76087A publication Critical patent/HK76087A/xx

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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
    • 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
    • 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)
  • Telephone Set Structure (AREA)
HK76087A 1979-09-18 1987-10-15 Electro-acoustic transducers HK76087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7932324A GB2059715B (en) 1979-09-18 1979-09-18 Electro acoustic transducers

Publications (1)

Publication Number Publication Date
HK76087A true HK76087A (en) 1987-10-23

Family

ID=10507909

Family Applications (1)

Application Number Title Priority Date Filing Date
HK76087A HK76087A (en) 1979-09-18 1987-10-15 Electro-acoustic transducers

Country Status (3)

Country Link
BR (1) BR8005910A (xx)
GB (1) GB2059715B (xx)
HK (1) HK76087A (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542552B1 (fr) * 1983-03-07 1986-04-11 Thomson Csf Transducteur electroacoustique a diaphragme piezo-electrique
DE19541197A1 (de) * 1995-11-04 1997-05-07 Nokia Deutschland Gmbh Anordnung zur Abstrahlung von Schallwellen
DK172871B1 (da) * 1997-08-22 1999-08-23 Danfoss As Ultralydstransducer
JP4206599B2 (ja) * 2000-02-29 2009-01-14 康浩 蜂須賀 マイクロホン

Also Published As

Publication number Publication date
GB2059715A (en) 1981-04-23
GB2059715B (en) 1984-02-01
BR8005910A (pt) 1981-03-31

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