FR2361709A1 - Generateur acoustique - Google Patents

Generateur acoustique

Info

Publication number
FR2361709A1
FR2361709A1 FR7724705A FR7724705A FR2361709A1 FR 2361709 A1 FR2361709 A1 FR 2361709A1 FR 7724705 A FR7724705 A FR 7724705A FR 7724705 A FR7724705 A FR 7724705A FR 2361709 A1 FR2361709 A1 FR 2361709A1
Authority
FR
France
Prior art keywords
acoustic generator
crystal
generator
closed
open
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.)
Withdrawn
Application number
FR7724705A
Other languages
English (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.)
WARD ET GOLDSTONE Ltd
Volex PLC
Original Assignee
WARD ET GOLDSTONE Ltd
Ward and Goldstone 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
Priority claimed from GB33341/76A external-priority patent/GB1537555A/en
Application filed by WARD ET GOLDSTONE Ltd, Ward and Goldstone Ltd filed Critical WARD ET GOLDSTONE Ltd
Publication of FR2361709A1 publication Critical patent/FR2361709A1/fr
Withdrawn legal-status Critical Current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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electric Clocks (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

L'invention concerne un générateur acoustique. Le générateur selon l'invention comprend un corps tridimensionnel définissant une cavité fermée à une extrémité et ouverte à l'autre, un cristal fixé sur la surface de l'extrémité fermée, et des moyens oscillateurs excitant le cristal pour faire vibrer le corps.
FR7724705A 1976-08-11 1977-08-11 Generateur acoustique Withdrawn FR2361709A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB33341/76A GB1537555A (en) 1976-08-11 1976-08-11 Sound generator
GB4346676 1976-10-20

Publications (1)

Publication Number Publication Date
FR2361709A1 true FR2361709A1 (fr) 1978-03-10

Family

ID=26261827

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7724705A Withdrawn FR2361709A1 (fr) 1976-08-11 1977-08-11 Generateur acoustique

Country Status (11)

Country Link
US (1) US4195284A (fr)
AU (1) AU517376B2 (fr)
BR (1) BR7705286A (fr)
CA (1) CA1087004A (fr)
CH (1) CH622900A5 (fr)
DE (1) DE2736089A1 (fr)
FR (1) FR2361709A1 (fr)
IE (1) IE45864B1 (fr)
IT (1) IT1115948B (fr)
NL (1) NL7708888A (fr)
SE (1) SE7708880L (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471885A1 (fr) * 1979-12-20 1981-06-26 Fiamm Componenti Accessori Spa Dispositif avertisseur acoustique pour vehicules automobiles
FR2553213A1 (fr) * 1983-10-11 1985-04-12 Saphymo Stel Dispositif d'alarme sonore etanche et appareil le comportant
FR2659164A1 (fr) * 1990-03-05 1991-09-06 Sankyo Seiki Seisakusho Kk
EP0874351A2 (fr) * 1997-04-21 1998-10-28 Matsushita Electric Industrial Co., Ltd. Dispositif émetteur-récepteur d'ultrasons

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4310833A (en) * 1980-01-15 1982-01-12 Kobishi America, Inc. Electrically-energized horn
US4335377A (en) * 1980-07-11 1982-06-15 Joseph E. Belavich Medical alert alarm
JPS57119397A (en) * 1981-01-16 1982-07-24 Canon Kk Sound pressure selector for sound emitting body
KR900003594B1 (ko) * 1985-01-07 1990-05-26 니홍덴소 가부시기 가이샤 경보음 발생장치
US5049853A (en) * 1987-10-19 1991-09-17 Sparton Corporation Electric horn with solid state driver
US5160913A (en) * 1987-10-19 1992-11-03 Sparton Corporation Electric horn with solid state driver
US5181019A (en) * 1991-07-02 1993-01-19 Designtech International, Inc. Weighted transducer and driving circuit with feedback
US5414406A (en) * 1992-04-21 1995-05-09 Sparton Corporation Self-tuning vehicle horn
US5398024A (en) * 1992-08-04 1995-03-14 Knowles; Todd Signal annunciators
DE4311701C2 (de) * 1993-04-08 1999-08-26 Siemens Ag Anordnung zur Erzeugung von akustischen Signalen, insbesondere Tonrufen in Telekommunikationsgeräten
JP3521499B2 (ja) * 1993-11-26 2004-04-19 日本碍子株式会社 圧電／電歪膜型素子
US5596311A (en) * 1995-05-23 1997-01-21 Preco, Inc. Method and apparatus for driving a self-resonant acoustic transducer
US5990784A (en) * 1996-12-17 1999-11-23 Yosemite Investment, Inc. Schmitt trigger loud alarm with feedback
US5872506A (en) * 1997-04-04 1999-02-16 Yosemite Investment, Inc. Piezoelectric transducer having directly mounted electrical components and noise making device utilizing same
DE19744229A1 (de) 1997-10-07 1999-04-29 Bosch Gmbh Robert Ultraschallwandler
US6130618A (en) * 1998-01-15 2000-10-10 Yosemite Investment, Inc. Piezoelectric transducer assembly adapted for enhanced functionality
US6417659B1 (en) 2000-08-15 2002-07-09 Systems Material Handling Co. Electronic circuit for tuning vibratory transducers
US6617967B2 (en) 2001-01-10 2003-09-09 Mallory Sonalert Products, Inc. Piezoelectric siren driver circuit
CN102157145B (zh) * 2010-01-29 2014-05-07 能美防灾株式会社 音响报警装置及具有该音响报警装置的火灾警报设备
US10165358B2 (en) * 2014-12-11 2018-12-25 Semiconductor Components Industries, Llc Transducer controller and method therefor

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1420084A (fr) * 1964-01-28 1965-12-03 Générateur acoustique
FR1604442A (fr) * 1968-12-31 1971-11-08
FR2175812A1 (fr) * 1972-01-30 1973-10-26 Philips Nv
US3879726A (en) * 1972-03-20 1975-04-22 Mallory & Co Inc P R Audible alarm unit
US3890513A (en) * 1974-02-14 1975-06-17 Systron Donner Corp Acoustic transducer
DE2508386A1 (de) * 1974-03-04 1975-09-11 Mallory & Co Inc P R Akustische alarmanlage
FR2292412A7 (fr) * 1974-11-21 1976-06-18 Jaz Sa Perfectionnement aux vibreurs electromagnetiques a circuit d'entretien electronique
US3970879A (en) * 1971-12-29 1976-07-20 Sumitomo Electric Industries, Ltd. Piezoelectric acoustic device
US3995268A (en) * 1974-10-24 1976-11-30 Stewart-Warner Corporation Vehicle alarm

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB958227A (en) * 1960-10-20 1964-05-21 Arthur Abbey Improvements in or relating to electro-mechanism transducers
US3277465A (en) * 1963-02-25 1966-10-04 Bronson M Potter Electrically operated audible alarm
GB1245714A (en) * 1969-10-30 1971-09-08 Standard Telephones Cables Ltd Improvements in or relating to tone generators
CA930211A (en) * 1970-08-20 1973-07-17 Johnson Matthey And Mallory Limited Piezoelectric transducer and noise making device utilizing same
US3815129A (en) * 1970-08-20 1974-06-04 Mallory & Co Inc P R Piezoelectric transducer and noise making device utilizing same
AU468619B2 (en) * 1972-03-20 1976-01-15 P.R. Mallory & Co. Inc. Audible alarm unit
US3872470A (en) * 1973-04-18 1975-03-18 Airco Inc Audible signal generating apparatus having selectively controlled audible output
CA1006969A (en) * 1973-07-26 1977-03-15 Lyle E. Shoot Piezoelectric transducer
BR7405910D0 (pt) * 1973-08-09 1975-05-27 Mallory & Co Inc P R Aperfeicoamentos e dispositivo de alarme audivel utilizando um transdutor piezoeletrico
US3890612A (en) * 1973-09-28 1975-06-17 Mallory & Co Inc P R High output audible alarm device utilizing a piezoelectric transducer
DE7502725U (de) * 1975-01-30 1976-05-06 Gebrueder Junghans Gmbh, 7230 Schramberg Wasserdichte uhr mit einem piezoelektrischen summer
US4010447A (en) * 1976-01-07 1977-03-01 Zenith Radio Corporation Signal transmitter using an active thick film substrate

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1420084A (fr) * 1964-01-28 1965-12-03 Générateur acoustique
FR1604442A (fr) * 1968-12-31 1971-11-08
US3970879A (en) * 1971-12-29 1976-07-20 Sumitomo Electric Industries, Ltd. Piezoelectric acoustic device
FR2175812A1 (fr) * 1972-01-30 1973-10-26 Philips Nv
US3879726A (en) * 1972-03-20 1975-04-22 Mallory & Co Inc P R Audible alarm unit
US3890513A (en) * 1974-02-14 1975-06-17 Systron Donner Corp Acoustic transducer
DE2508386A1 (de) * 1974-03-04 1975-09-11 Mallory & Co Inc P R Akustische alarmanlage
US3995268A (en) * 1974-10-24 1976-11-30 Stewart-Warner Corporation Vehicle alarm
FR2292412A7 (fr) * 1974-11-21 1976-06-18 Jaz Sa Perfectionnement aux vibreurs electromagnetiques a circuit d'entretien electronique

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/76 *
EXBK/77 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471885A1 (fr) * 1979-12-20 1981-06-26 Fiamm Componenti Accessori Spa Dispositif avertisseur acoustique pour vehicules automobiles
FR2553213A1 (fr) * 1983-10-11 1985-04-12 Saphymo Stel Dispositif d'alarme sonore etanche et appareil le comportant
FR2659164A1 (fr) * 1990-03-05 1991-09-06 Sankyo Seiki Seisakusho Kk
EP0874351A2 (fr) * 1997-04-21 1998-10-28 Matsushita Electric Industrial Co., Ltd. Dispositif émetteur-récepteur d'ultrasons
EP0874351A3 (fr) * 1997-04-21 2000-03-01 Matsushita Electric Industrial Co., Ltd. Dispositif émetteur-récepteur d'ultrasons
US6087760A (en) * 1997-04-21 2000-07-11 Matsushita Electric Industrial Co., Ltd. Ultrasonic transmitter-receiver

Also Published As

Publication number Publication date
BR7705286A (pt) 1978-07-04
IT1115948B (it) 1986-02-10
SE7708880L (sv) 1978-02-12
CH622900A5 (fr) 1981-04-30
AU517376B2 (en) 1981-07-30
IE45864L (en) 1978-02-11
NL7708888A (nl) 1978-02-14
AU2782777A (en) 1979-04-05
US4195284A (en) 1980-03-25
DE2736089A1 (de) 1978-02-16
IE45864B1 (en) 1982-12-15
CA1087004A (fr) 1980-10-07

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Legal Events

Date Code Title Description
ST Notification of lapse