BR8901314A - NOISE TRANSDUCER DEVICE GENERATED WITHIN A BODY - Google Patents
NOISE TRANSDUCER DEVICE GENERATED WITHIN A BODYInfo
- Publication number
- BR8901314A BR8901314A BR898901314A BR8901314A BR8901314A BR 8901314 A BR8901314 A BR 8901314A BR 898901314 A BR898901314 A BR 898901314A BR 8901314 A BR8901314 A BR 8901314A BR 8901314 A BR8901314 A BR 8901314A
- Authority
- BR
- Brazil
- Prior art keywords
- transducer device
- device generated
- noise transducer
- noise
- generated
- Prior art date
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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/46—Special adaptations for use as contact microphones, e.g. on musical instrument, on stethoscope
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT19873/88A IT1218059B (en) | 1988-03-21 | 1988-03-21 | NOISE TRANSDUCTION DEVICE GENERATED INSIDE A BODY, IN PARTICULAR OF THE VOICE, WITH SUBSTANTIAL REDUCTION OF ENVIRONMENTAL NOISE |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8901314A true BR8901314A (en) | 1989-11-07 |
Family
ID=11161971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR898901314A BR8901314A (en) | 1988-03-21 | 1989-03-21 | NOISE TRANSDUCER DEVICE GENERATED WITHIN A BODY |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0334219A3 (en) |
AU (1) | AU3156389A (en) |
BR (1) | BR8901314A (en) |
IL (1) | IL89655A0 (en) |
IT (1) | IT1218059B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2183072C (en) * | 1994-03-03 | 2004-05-18 | Gustav Adolf Glatz | Standing umbrella |
KR19980063410A (en) * | 1997-08-19 | 1998-10-07 | 양승택 | Telephone with handcuffs for both bone and airway hearing |
JP3623127B2 (en) * | 1998-12-25 | 2005-02-23 | 松下電器産業株式会社 | Headphone device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4013992A (en) * | 1976-01-28 | 1977-03-22 | The United States Of America As Represented By The Secretary Of The Navy | Diver's piezoelectric microphone with integral agc preamplifier |
FR2448817A1 (en) * | 1979-02-08 | 1980-09-05 | Kauffmann Paulette | Capsule which contains perfumed disinfectant - resiliently clips over mouthpiece or earpiece of telephone and gives protection against microbes |
DE3023155A1 (en) * | 1980-06-20 | 1982-01-07 | Telemit Electronic GmbH, 8000 München | Piezoelectric contact microphone - has contact area supporting and operating stressed piezo pillar under its elasticised lower retaining flange diaphragm |
US4607383A (en) * | 1983-08-18 | 1986-08-19 | Gentex Corporation | Throat microphone |
US4591668A (en) * | 1984-05-08 | 1986-05-27 | Iwata Electric Co., Ltd. | Vibration-detecting type microphone |
FR2581496B1 (en) * | 1985-05-02 | 1987-06-26 | Silec Liaisons Elec | MICROPHONE CONTACT SENSOR WITH PIEZO POLYMER MEMBRANE |
-
1988
- 1988-03-21 IT IT19873/88A patent/IT1218059B/en active
-
1989
- 1989-03-16 EP EP19890104754 patent/EP0334219A3/en not_active Withdrawn
- 1989-03-17 IL IL89655A patent/IL89655A0/en unknown
- 1989-03-21 AU AU31563/89A patent/AU3156389A/en not_active Abandoned
- 1989-03-21 BR BR898901314A patent/BR8901314A/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP0334219A3 (en) | 1991-04-03 |
AU3156389A (en) | 1989-09-21 |
EP0334219A2 (en) | 1989-09-27 |
IL89655A0 (en) | 1989-09-28 |
IT8819873A0 (en) | 1988-03-21 |
IT1218059B (en) | 1990-04-12 |
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