ZA81972B - Transducer plate for piezo-electric electro-acoustic transducers - Google Patents

Transducer plate for piezo-electric electro-acoustic transducers

Info

Publication number: ZA81972B
Authority: ZA; South Africa
Prior art keywords: piezo; transducer plate; acoustic transducers; electric electro; electro
Prior art date: 1980-02-15

Application number

ZA00810972A

Other languages

English (en)

Inventor

Erwin Martin

Martin Erwin

K Walliser

Original Assignee

Siemens Ag

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.)

1980-02-15

Filing date

1981-02-13

Publication date

1982-03-31

1981-02-13 Application filed by Siemens Ag filed Critical Siemens Ag

1982-03-31 Publication of ZA81972B publication Critical patent/ZA81972B/xx

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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- 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)
Health & Medical Sciences (AREA)
Otolaryngology (AREA)
Piezo-Electric Transducers For Audible Bands (AREA)
Transducers For Ultrasonic Waves (AREA)
Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Compositions Of Oxide Ceramics (AREA)
Electrophonic Musical Instruments (AREA)

ZA00810972A 1980-02-15 1981-02-13 Transducer plate for piezo-electric electro-acoustic transducers ZA81972B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE3005708A DE3005708C2 (de)	1980-02-15	1980-02-15	Wandlerplatte für piezoelektrische Wandler

Publications (1)

Publication Number	Publication Date
ZA81972B true ZA81972B (en)	1982-03-31

Family

ID=6094723

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ZA00810972A ZA81972B (en)	1980-02-15	1981-02-13	Transducer plate for piezo-electric electro-acoustic transducers

Country Status (9)

Country	Link
US (1)	US4368401A (de)
EP (1)	EP0034730B1 (de)
JP (1)	JPS60839B2 (de)
AT (1)	ATE10694T1 (de)
AU (1)	AU548536B2 (de)
BR (1)	BR8100889A (de)
DE (1)	DE3005708C2 (de)
FI (1)	FI810453A7 (de)
ZA (1)	ZA81972B (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS57113697A (en) *	1981-01-05	1982-07-15	Murata Mfg Co Ltd	Piezoelectric type speaker
DE3232177A1 (de) *	1982-08-30	1984-03-01	Siemens AG, 1000 Berlin und 8000 München	Piezoelektrischer wandler
US4805157A (en) *	1983-12-02	1989-02-14	Raytheon Company	Multi-layered polymer hydrophone array
DE3518819A1 (de) *	1985-05-24	1986-11-27	Siemens AG, 1000 Berlin und 8000 München	Elektroakustischer wandler
EP0209053A3 (de) *	1985-07-18	1987-09-02	Wolfgang Prof. Dr. Eisenmenger	Verfahren und Einrichtung zur berührungsfreien Zertrümmerung von Konkrementen im Körper von Lebewesen
DE3702378A1 (de) *	1987-01-27	1988-08-04	Siemens Ag	Piezoelektrischer wandler fuer schwerhoerige
DE3736896A1 (de) *	1987-10-30	1989-05-11	Siemens Ag	Elektroakustischer wandler
DE8805953U1 (de) *	1988-05-05	1988-07-07	Höntzsch GmbH, 71334 Waiblingen	Elektroakustischer Wandler
JPH05111097A (ja) *	1991-10-15	1993-04-30	Murata Mfg Co Ltd	圧電発音体
GB2272056A (en) *	1992-11-03	1994-05-04	Marconi Gec Ltd	Solid-state resonator device
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
US6243473B1 (en) *	1995-09-02	2001-06-05	New Transducers Limited	Laptop computer with loudspeaker(s)
US5901231A (en)	1995-09-25	1999-05-04	Noise Cancellation Technologies, Inc.	Piezo speaker for improved passenger cabin audio systems
US5873154A (en) *	1996-10-17	1999-02-23	Nokia Mobile Phones Limited	Method for fabricating a resonator having an acoustic mirror
US6181797B1 (en)	1999-01-09	2001-01-30	Noise Cancellation Technologies, Inc.	Piezo speaker for improved passenger cabin audio systems
US6603241B1 (en) *	2000-05-23	2003-08-05	Agere Systems, Inc.	Acoustic mirror materials for acoustic devices
JP2004015767A (ja) *	2002-06-12	2004-01-15	Murata Mfg Co Ltd	圧電発音体およびこの圧電発音体を用いた圧電型電気音響変換器
US20060013417A1 (en) *	2004-07-16	2006-01-19	Intier Automotive Inc.	Acoustical panel assembly

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL6813996A (de) *	1968-09-30	1970-04-01
BE759888A (fr) *	1969-12-05	1971-06-04	Siemens Ag	Transducteur electro-acoustique, notamment microphone pour installations telephoniques
US3846650A (en) *	1970-10-08	1974-11-05	Dynamics Corp Massa Div	Electroacoustic transducer of the vibratile diaphragm type with controlled uniformity of performance characteristics and method for controlling uniformity
US3708702A (en) *	1970-12-02	1973-01-02	Siemens Ag	Electroacoustic transducer
US3733590A (en) *	1971-04-15	1973-05-15	A Kaufman	Optimum electrode configuration ceramic memories with ceramic motor element and mechanical damping
US4047060A (en) *	1971-09-07	1977-09-06	Motorola, Inc.	Acoustic transducer with elastomeric coupling
US3728562A (en) *	1971-10-18	1973-04-17	Bell Telephone Labor Inc	Electroacoustic transducer having transducing element supporting means
US3786202A (en) *	1972-04-10	1974-01-15	Motorola Inc	Acoustic transducer including piezoelectric driving element
US3863250A (en) *	1973-01-30	1975-01-28	Jr Arthur Mccluskey	Glass breakage detector
DE2831362A1 (de) *	1978-07-17	1980-01-31	Siemens Ag	Elektroakustischer wandler
US4310730A (en) *	1979-07-25	1982-01-12	Aaroe Kenneth T	Shielded piezoelectric acoustic pickup for mounting on musical instrument sounding boards

1980
- 1980-02-15 DE DE3005708A patent/DE3005708C2/de not_active Expired
1981
- 1981-01-22 US US06/227,465 patent/US4368401A/en not_active Expired - Fee Related
- 1981-02-02 AT AT81100734T patent/ATE10694T1/de active
- 1981-02-02 EP EP81100734A patent/EP0034730B1/de not_active Expired
- 1981-02-12 JP JP56019552A patent/JPS60839B2/ja not_active Expired
- 1981-02-13 FI FI810453A patent/FI810453A7/fi not_active Application Discontinuation
- 1981-02-13 BR BR8100889A patent/BR8100889A/pt unknown
- 1981-02-13 ZA ZA00810972A patent/ZA81972B/xx unknown
- 1981-02-13 AU AU67271/81A patent/AU548536B2/en not_active Ceased

Also Published As

Publication number	Publication date
JPS60839B2 (ja)	1985-01-10
DE3005708A1 (de)	1981-08-20
EP0034730B1 (de)	1984-12-05
AU548536B2 (en)	1985-12-19
EP0034730A1 (de)	1981-09-02
US4368401A (en)	1983-01-11
FI810453L (fi)	1981-08-16
JPS56131300A (en)	1981-10-14
AU6727181A (en)	1981-08-20
FI810453A7 (fi)	1981-08-16
BR8100889A (pt)	1981-08-25
DE3005708C2 (de)	1984-08-30
ATE10694T1 (de)	1984-12-15

Publication	Publication Date	Title
ZA81972B (en)	1982-03-31	Transducer plate for piezo-electric electro-acoustic transducers
ES8103532A1 (es)	1981-02-16	Un dispositivo transductor acustico
DE50015713D1 (de)	2009-09-24	Massesensitiver sensor
ATE45054T1 (de)	1989-08-15	Poroese anpassungsschicht in einem ultraschallapplikator.
JPH01149700A (ja)	1989-06-12	音響ダンパ
SE7511200L (sv)	1976-04-09	Laminat
ES8401704A1 (es)	1983-12-01	Un transductor electro-acustico.
ES462476A1 (es)	1978-07-16	Un transductor electro-acustico.
GB957802A (en)	1964-05-13	Improvements in or relating to ultrasonic transducers
GB2078464A (en)	1982-01-06	Variable thickness acoustic diaphragm voice coil arrangements for electroacoustic transducers
JPS5687912A (en)	1981-07-17	Elastic surface wave filter
US4215763A (en)	1980-08-05	Resonant sound attenuator for transformers
JPS5698651A (en)	1981-08-08	Sound converter
DE3061810D1 (en)	1983-03-10	Surface acoustic wave pressure transducer
JPS568995A (en)	1981-01-29	Acoustic wave video transducer
JPS55112019A (en)	1980-08-29	Elastic surface wave device
WO1997013163A3 (en)	1997-05-15	Acoustic transducer
US2458581A (en)	1949-01-11	Supersonic inspection
JPS6420714A (en)	1989-01-24	Surface acoustic wave device
JPS56114423A (en)	1981-09-09	Elastic surface wave filter
FR2290813A1 (fr)	1976-06-04	Transducteur electroacoustique resistant aux pressions elevees
JPS6440894A (en)	1989-02-13	New sound absorbing material
JPS5679986A (en)	1981-06-30	Buzzer for electronic timepiece
JPS5713802A (en)	1982-01-23	Elastic surface wave oscillator
SU1460695A1 (ru)	1989-02-23	Электроакустический экран дл ультразвуковых преобразователей