JPS51130216A - Electromechanical transducer - Google Patents

Electromechanical transducer

Info

Publication number
JPS51130216A
JPS51130216A JP50054826A JP5482675A JPS51130216A JP S51130216 A JPS51130216 A JP S51130216A JP 50054826 A JP50054826 A JP 50054826A JP 5482675 A JP5482675 A JP 5482675A JP S51130216 A JPS51130216 A JP S51130216A
Authority
JP
Japan
Prior art keywords
electromechanical transducer
characteristic
directional characteristic
virtical
piezo
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.)
Pending
Application number
JP50054826A
Other languages
Japanese (ja)
Inventor
Nobuhisa Atoji
Masaki Suzumura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP50054826A priority Critical patent/JPS51130216A/en
Publication of JPS51130216A publication Critical patent/JPS51130216A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

PURPOSE:To make a directional characteristic in horizontal surface absolute nondirectional characteristic and to expand directional characteristic in virtical direction, relating to a speaker incorporating a piezo-electric element.
JP50054826A 1975-05-07 1975-05-07 Electromechanical transducer Pending JPS51130216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50054826A JPS51130216A (en) 1975-05-07 1975-05-07 Electromechanical transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50054826A JPS51130216A (en) 1975-05-07 1975-05-07 Electromechanical transducer

Publications (1)

Publication Number Publication Date
JPS51130216A true JPS51130216A (en) 1976-11-12

Family

ID=12981469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50054826A Pending JPS51130216A (en) 1975-05-07 1975-05-07 Electromechanical transducer

Country Status (1)

Country Link
JP (1) JPS51130216A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54151333U (en) * 1978-04-13 1979-10-20
JP2010062819A (en) * 2008-09-03 2010-03-18 Kenwood Corp Speaker device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588552A (en) * 1969-09-23 1971-06-28 Motorola Inc Prestressed piezoelectric audio transducer
JPS4856128A (en) * 1971-11-11 1973-08-07
JPS4912812A (en) * 1972-05-09 1974-02-04

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588552A (en) * 1969-09-23 1971-06-28 Motorola Inc Prestressed piezoelectric audio transducer
JPS4856128A (en) * 1971-11-11 1973-08-07
JPS4912812A (en) * 1972-05-09 1974-02-04

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54151333U (en) * 1978-04-13 1979-10-20
JP2010062819A (en) * 2008-09-03 2010-03-18 Kenwood Corp Speaker device

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