FR1522700A - Piezoelectric transducer - Google Patents

Piezoelectric transducer

Info

Publication number
FR1522700A
FR1522700A FR105942A FR105942A FR1522700A FR 1522700 A FR1522700 A FR 1522700A FR 105942 A FR105942 A FR 105942A FR 105942 A FR105942 A FR 105942A FR 1522700 A FR1522700 A FR 1522700A
Authority
FR
France
Prior art keywords
piezoelectric transducer
piezoelectric
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
Application number
FR105942A
Other languages
French (fr)
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of FR1522700A publication Critical patent/FR1522700A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
FR105942A 1966-06-13 1967-05-10 Piezoelectric transducer Expired FR1522700A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55712066A 1966-06-13 1966-06-13
US85298569A 1969-08-22 1969-08-22

Publications (1)

Publication Number Publication Date
FR1522700A true FR1522700A (en) 1968-04-26

Family

ID=27071335

Family Applications (1)

Application Number Title Priority Date Filing Date
FR105942A Expired FR1522700A (en) 1966-06-13 1967-05-10 Piezoelectric transducer

Country Status (4)

Country Link
US (1) US3548116A (en)
DE (1) DE1512729B2 (en)
FR (1) FR1522700A (en)
GB (1) GB1159337A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179883A1 (en) * 1972-04-10 1973-11-23 Motorola Inc
FR2574609A1 (en) * 1984-09-05 1986-06-13 Sawafuji Dynameca Co Ltd Piezoelectric element for radio loudspeaker - includes piezoelectric plate with main and auxiliary weights attached to visco-elastic layers on opposed faces
FR2574610A1 (en) * 1984-09-05 1986-06-13 Sawafuji Dynameca Co Ltd Piezoelectric loudspeaker - with two weights joined by viscoelastic layers and connecting rod

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2202254C2 (en) * 1972-01-18 1974-01-24 Siemens Ag Electroacoustic transducers, in particular microphones for telephone systems
JPS4963860U (en) * 1972-06-26 1974-06-04
US3970987A (en) * 1972-08-17 1976-07-20 Signal Science, Inc. Acoustical switch
US3872470A (en) * 1973-04-18 1975-03-18 Airco Inc Audible signal generating apparatus having selectively controlled audible output
US4035672A (en) * 1975-02-06 1977-07-12 Cts Corporation Acoustic transducer with a dual purpose piezoelectric element
US4060741A (en) * 1975-12-29 1977-11-29 Motorola, Inc. High power piezoelectric bender
DE2705035C2 (en) * 1977-02-07 1984-05-03 Motorola, Inc., 60196 Schaumburg, Ill. Drive device with two piezoelectric bending plates
US4078160A (en) * 1977-07-05 1978-03-07 Motorola, Inc. Piezoelectric bimorph or monomorph bender structure
GB2018548B (en) * 1978-04-07 1982-06-16 Matsushita Electric Ind Co Ltd Piezoelectric speaker
US4240002A (en) * 1979-04-02 1980-12-16 Motorola, Inc. Piezoelectric transducer arrangement with integral terminals and housing
DE3009048C2 (en) * 1980-03-08 1983-04-21 Kuttruff, Heinrich, Prof. Dr., 5100 Aachen Piezoelectric multilayer transducer for ultrasound
JPS5753798U (en) * 1980-09-11 1982-03-29
US4454386A (en) * 1980-10-29 1984-06-12 Sumitomo Special Metal Co., Ltd. Piezoelectric transducer for piezoelectric loud speaker
GB2166022A (en) * 1984-09-05 1986-04-23 Sawafuji Dynameca Co Ltd Piezoelectric vibrator
US4598177A (en) * 1985-01-16 1986-07-01 Sears, Roebuck, & Co. Hearing aid with self-contained battery compartment and volume control
US4985926A (en) * 1988-02-29 1991-01-15 Motorola, Inc. High impedance piezoelectric transducer
DE4135408A1 (en) * 1991-10-26 1993-04-29 Man Nutzfahrzeuge Ag Converting electric energy into vibrations - using piezoelectric effect to translate contraction or expansion to vibration of diaphragm
US5672929A (en) * 1992-03-03 1997-09-30 The Technology Partnership Public Limited Company Moving sensor using mechanical vibrations
US5450499A (en) * 1992-11-25 1995-09-12 Magnetic Resonance Equipment Corporation Audio speaker for use in an external magnetic field
US5727076A (en) * 1994-05-02 1998-03-10 Aura Systems, Inc. Audio transducer having piezoelectric device
US5652801A (en) * 1994-05-02 1997-07-29 Aura Systems, Inc. Resonance damper for piezoelectric transducer
US5828768A (en) * 1994-05-11 1998-10-27 Noise Cancellation Technologies, Inc. Multimedia personal computer with active noise reduction and piezo speakers
US5638456A (en) * 1994-07-06 1997-06-10 Noise Cancellation Technologies, Inc. Piezo speaker and installation method for laptop personal computer and other multimedia applications
US5901231A (en) 1995-09-25 1999-05-04 Noise Cancellation Technologies, Inc. Piezo speaker for improved passenger cabin audio systems
US6181797B1 (en) 1999-01-09 2001-01-30 Noise Cancellation Technologies, Inc. Piezo speaker for improved passenger cabin audio systems
GB2443228B (en) * 2006-10-25 2010-02-10 Gary Paul Nicholson Piezo-electric loudspeaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179883A1 (en) * 1972-04-10 1973-11-23 Motorola Inc
FR2574609A1 (en) * 1984-09-05 1986-06-13 Sawafuji Dynameca Co Ltd Piezoelectric element for radio loudspeaker - includes piezoelectric plate with main and auxiliary weights attached to visco-elastic layers on opposed faces
FR2574610A1 (en) * 1984-09-05 1986-06-13 Sawafuji Dynameca Co Ltd Piezoelectric loudspeaker - with two weights joined by viscoelastic layers and connecting rod

Also Published As

Publication number Publication date
DE1512729B2 (en) 1972-09-21
DE1512729A1 (en) 1969-07-10
US3548116A (en) 1970-12-15
GB1159337A (en) 1969-07-23

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