BR0101118A - Dispositivo alto-falante - Google Patents
Dispositivo alto-falanteInfo
- Publication number
- BR0101118A BR0101118A BR0101118-9A BR0101118A BR0101118A BR 0101118 A BR0101118 A BR 0101118A BR 0101118 A BR0101118 A BR 0101118A BR 0101118 A BR0101118 A BR 0101118A
- Authority
- BR
- Brazil
- Prior art keywords
- piezoelectric element
- attached
- structural member
- speaker device
- damper
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 abstract 2
- 230000035945 sensitivity Effects 0.000 abstract 1
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)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
"DISPOSITIVO ALTO-FALANTE". A presente invenção apresenta um dispositivo alto-falante em que a montagem é fácil, e que possui alta sensibilidade e baixa distorção. O dispositivo alto-falante consiste de um membro estrutural, de um elemento piezoelétrico, ao qual um sinal sonoro é aplicado, de um diafragma, anexo ao elemento piezoelétrico, de uma bobina, para amplificação o sinal sonoro, e de um abafador, anexo ao elemento piezoelétrico na face lateral oposta ao diafragma, para sustentar elasticamente o elemento piezoelétrico. A bobina é enrolada em relação ao membro estrutural, e o abafador fica anexo ao membro estrutural.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000083215A JP3904797B2 (ja) | 2000-03-21 | 2000-03-21 | スピーカ装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0101118A true BR0101118A (pt) | 2001-11-06 |
Family
ID=18599893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0101118-9A BR0101118A (pt) | 2000-03-21 | 2001-03-21 | Dispositivo alto-falante |
Country Status (5)
Country | Link |
---|---|
US (1) | US6751324B2 (pt) |
JP (1) | JP3904797B2 (pt) |
CN (1) | CN1148105C (pt) |
BR (1) | BR0101118A (pt) |
RU (1) | RU2220515C2 (pt) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7079661B2 (en) * | 2002-01-30 | 2006-07-18 | Matsushita Electric Industrial Co., Ltd. | Speaker for super-high frequency range reproduction |
WO2008147325A1 (en) * | 2007-06-01 | 2008-12-04 | Axsensor Ab | Piezoelectric transducer device |
JP5919499B2 (ja) * | 2012-07-25 | 2016-05-18 | パナソニックIpマネジメント株式会社 | 音源装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4963860U (pt) * | 1972-06-26 | 1974-06-04 | ||
JPS56149900A (en) | 1980-04-22 | 1981-11-19 | Seiko Instr & Electronics Ltd | Dynamic speaker |
US4401857A (en) * | 1981-11-19 | 1983-08-30 | Sanyo Electric Co., Ltd. | Multiple speaker |
US4414436A (en) * | 1982-04-19 | 1983-11-08 | Pioneer Speaker Components, Inc. | Narrow-frequency band acoustic transducer |
US4461930A (en) * | 1982-09-23 | 1984-07-24 | Pioneer Speaker Components, Inc. | Acoustic transducer with honeycomb diaphragm |
JPS63279700A (ja) | 1987-05-11 | 1988-11-16 | Sharp Corp | 複合型スピ−カ |
JPH01135299A (ja) | 1987-11-20 | 1989-05-26 | Iwatsu Electric Co Ltd | 圧電型スピーカ |
JPH0290899A (ja) | 1988-09-28 | 1990-03-30 | Foster Electric Co Ltd | 動電型スピーカ |
US5062139A (en) * | 1989-06-05 | 1991-10-29 | Christensen Eugene J | Coaxial loud speaker system |
US5321761A (en) * | 1990-05-26 | 1994-06-14 | Kyocera Corporation | Piezoelectric sound generator and method of its manufacture |
JPH04105499A (ja) | 1990-08-27 | 1992-04-07 | Kenwood Corp | Mfbスピーカ |
JP3102741B2 (ja) | 1994-02-15 | 2000-10-23 | 株式会社ケンウッド | スピーカユニット |
JPH08237787A (ja) | 1995-02-23 | 1996-09-13 | Alpine Electron Inc | スピーカ |
JP3809917B2 (ja) | 1996-02-19 | 2006-08-16 | フォスター電機株式会社 | 圧電型スピーカ |
-
2000
- 2000-03-21 JP JP2000083215A patent/JP3904797B2/ja not_active Expired - Fee Related
-
2001
- 2001-03-20 RU RU2001107480/28A patent/RU2220515C2/ru not_active IP Right Cessation
- 2001-03-21 BR BR0101118-9A patent/BR0101118A/pt not_active IP Right Cessation
- 2001-03-21 CN CNB011117702A patent/CN1148105C/zh not_active Expired - Fee Related
- 2001-03-21 US US09/812,569 patent/US6751324B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6751324B2 (en) | 2004-06-15 |
US20010024506A1 (en) | 2001-09-27 |
RU2220515C2 (ru) | 2003-12-27 |
JP2001268693A (ja) | 2001-09-28 |
CN1314772A (zh) | 2001-09-26 |
JP3904797B2 (ja) | 2007-04-11 |
CN1148105C (zh) | 2004-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 8A,9A E 10A ANUIDADE(S). |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2144 DE 07/02/2012. |