CA928997A - Sound generating device - Google Patents
Sound generating deviceInfo
- Publication number
- CA928997A CA928997A CA124032A CA124032A CA928997A CA 928997 A CA928997 A CA 928997A CA 124032 A CA124032 A CA 124032A CA 124032 A CA124032 A CA 124032A CA 928997 A CA928997 A CA 928997A
- Authority
- CA
- Canada
- Prior art keywords
- generating device
- sound generating
- sound
- generating
- 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
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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
-
- 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
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9693670 | 1970-10-01 | ||
JP9693570U JPS5417377Y1 (en) | 1970-10-01 | 1970-10-01 | |
JP9693470 | 1970-10-01 | ||
JP45093944A JPS5035794B1 (en) | 1970-10-27 | 1970-10-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA928997A true CA928997A (en) | 1973-06-26 |
Family
ID=27468161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA124032A Expired CA928997A (en) | 1970-10-01 | 1971-09-29 | Sound generating device |
Country Status (5)
Country | Link |
---|---|
US (1) | US3761956A (en) |
CA (1) | CA928997A (en) |
DE (1) | DE2148704C3 (en) |
FR (1) | FR2109894A5 (en) |
GB (1) | GB1330750A (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1402290A (en) * | 1971-12-29 | 1975-08-06 | Sumitomo Electric Industries | Piezo-electric acoustic device |
GB1370164A (en) * | 1972-01-30 | 1974-10-16 | Mullard Ltd | Piezoelectric transducer |
US4172253A (en) * | 1972-04-19 | 1979-10-23 | Hermans Albert L | Controlled wave pattern ultrasonic burglar alarm |
JPS4963860U (en) * | 1972-06-26 | 1974-06-04 | ||
US3872470A (en) * | 1973-04-18 | 1975-03-18 | Airco Inc | Audible signal generating apparatus having selectively controlled audible output |
US3873866A (en) * | 1973-11-05 | 1975-03-25 | Sontrix | Piezoelectric transducer assembly and method for generating an umbrella shaped radiation pattern |
US3921016A (en) * | 1973-12-12 | 1975-11-18 | Proctor & Assoc Co | Sonic signal generator and housing |
US3890513A (en) * | 1974-02-14 | 1975-06-17 | Systron Donner Corp | Acoustic transducer |
US4228379A (en) * | 1978-08-28 | 1980-10-14 | American District Telegraph Company | Diaphragm type piezoelectric electroacoustic transducer |
DE3135096A1 (en) * | 1981-02-20 | 1982-09-09 | Apparatebau Wilhelm Heibl Gmbh, 8671 Selbitz | Sound generator (source) having a piezoelectric transducer |
DE3232177A1 (en) * | 1982-08-30 | 1984-03-01 | Siemens AG, 1000 Berlin und 8000 München | PIEZOELECTRIC CONVERTER |
JPS60190100A (en) * | 1984-03-09 | 1985-09-27 | Murata Mfg Co Ltd | Piezoelectric speaker |
FR2583115B1 (en) * | 1985-06-10 | 1989-03-10 | Centre Techn Ind Mecanique | ELECTROFLUIDIC TRANSDUCER OF THE NOZZLE / PALLET TYPE AND HYDRAULIC SERVOVALVE EQUIPPED WITH SUCH A TRANSDUCER |
GB2234110B (en) * | 1989-05-31 | 1993-04-21 | Seikosha Kk | Piezo-electric transducer |
US5070319A (en) * | 1990-06-22 | 1991-12-03 | Ranco Incorporated Of Delaware | Door ajar alarm for refrigeration unit |
US5063372A (en) * | 1990-06-22 | 1991-11-05 | Ranco Incorporated Of Delaware | Door ajar alarm for refrigeration unit |
US5317305A (en) * | 1992-01-30 | 1994-05-31 | Campman James P | Personal alarm device with vibrating accelerometer motion detector and planar piezoelectric hi-level sound generator |
US5363452A (en) * | 1992-05-19 | 1994-11-08 | Shure Brothers, Inc. | Microphone for use in a vibrating environment |
JP3324593B2 (en) * | 1999-10-28 | 2002-09-17 | 株式会社村田製作所 | Ultrasonic vibration device |
US7386137B2 (en) | 2004-12-15 | 2008-06-10 | Multi Service Corporation | Sound transducer for solid surfaces |
US20060126885A1 (en) * | 2004-12-15 | 2006-06-15 | Christopher Combest | Sound transducer for solid surfaces |
AU2016322836B2 (en) | 2015-09-14 | 2021-07-29 | Wing Acoustics Limited | Improvements in or relating to audio transducers |
US11166100B2 (en) | 2017-03-15 | 2021-11-02 | Wing Acoustics Limited | Bass optimization for audio systems and devices |
WO2018172944A1 (en) | 2017-03-22 | 2018-09-27 | Wing Acoustics Limited | Systems methods and devices relating to hinges and audio transducers |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2967957A (en) * | 1957-09-17 | 1961-01-10 | Massa Frank | Electroacoustic transducer |
US3166730A (en) * | 1959-09-29 | 1965-01-19 | Jr James R Brown | Annular electrostrictive transducer |
US3271596A (en) * | 1963-11-12 | 1966-09-06 | Boeing Co | Electromechanical transducers |
US3331970A (en) * | 1964-09-29 | 1967-07-18 | Honeywell Inc | Sonic transducer |
US3518460A (en) * | 1968-10-30 | 1970-06-30 | Euphonics Corp | Ultrasonic transducer employing suspended piezoelectric plate |
US3578995A (en) * | 1969-09-22 | 1971-05-18 | Dynamics Corp Massa Div | Electroacoustic transducers of the bilaminar flexural vibrating type |
US3638052A (en) * | 1969-09-22 | 1972-01-25 | Dynamics Corp America | Electroacoustic transducers of the bilaminar flexural vibrating type |
-
1971
- 1971-09-20 US US00181720A patent/US3761956A/en not_active Expired - Lifetime
- 1971-09-23 GB GB4439971A patent/GB1330750A/en not_active Expired
- 1971-09-29 DE DE2148704A patent/DE2148704C3/en not_active Expired
- 1971-09-29 CA CA124032A patent/CA928997A/en not_active Expired
- 1971-09-30 FR FR7135218A patent/FR2109894A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2148704C3 (en) | 1974-04-04 |
DE2148704B2 (en) | 1973-09-13 |
GB1330750A (en) | 1973-09-19 |
FR2109894A5 (en) | 1972-05-26 |
AU3362471A (en) | 1973-03-22 |
DE2148704A1 (en) | 1972-04-06 |
US3761956A (en) | 1973-09-25 |
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