ES8707839A1 - Loudspeaker combination with piezo-electric tweeter. - Google Patents
Loudspeaker combination with piezo-electric tweeter.Info
- Publication number
- ES8707839A1 ES8707839A1 ES555745A ES555745A ES8707839A1 ES 8707839 A1 ES8707839 A1 ES 8707839A1 ES 555745 A ES555745 A ES 555745A ES 555745 A ES555745 A ES 555745A ES 8707839 A1 ES8707839 A1 ES 8707839A1
- Authority
- ES
- Spain
- Prior art keywords
- tweeter
- piezo
- electric
- support
- piezoelectric
- 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
- 230000005855 radiation Effects 0.000 abstract 2
- 239000000919 ceramic Substances 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- 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
- H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
Landscapes
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Cosmetics (AREA)
- Percussion Or Vibration Massage (AREA)
- Dental Preparations (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
This invention concerns a multiple loudspeaker with a piezo-electric "tweeter", held up by a means of support which allows the rear wave emitted by the ceramic disk and respective conical diaphragm to be fully exploited, using the main loudspeaker cone as a reflecting surface without overloading the moving coil of the latter. The invention is basically characterized by the fact that the piezoelectric "tweeter" is placed in front of the main loudspeaker cone, without the traditional protection and support basket, but using a different means of support which does not intercept or disturb the rear radiation from the piezoelectric "tweeter", or prevent the forward reflection of the radiation by the main loudspeaker diaphragm.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT00625/85A IT1187062B (en) | 1985-09-02 | 1985-09-02 | MULTIPLE SPEAKER, WITH PIEZOELECTRIC "TWEETER" SUPPORTED WITH MEANS THAT ALLOW THE EXPLOITATION OF THE MEMBRANE OF THE MAIN SPEAKER AS THE REFLECTIVE SURFACE OF THE RADIATION EMITTED REAR FROM THE CERAMIC DISC AND THE "TWE" MEMBRET |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8707839A1 true ES8707839A1 (en) | 1987-09-01 |
ES555745A0 ES555745A0 (en) | 1987-09-01 |
Family
ID=11293510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES555745A Expired ES8707839A1 (en) | 1985-09-02 | 1986-06-05 | Loudspeaker combination with piezo-electric tweeter. |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0220354B1 (en) |
JP (1) | JPH0738752B2 (en) |
KR (1) | KR950002765B1 (en) |
AT (1) | ATE65149T1 (en) |
CA (1) | CA1287394C (en) |
DE (1) | DE3583442D1 (en) |
DK (1) | DK171190B1 (en) |
ES (1) | ES8707839A1 (en) |
FI (1) | FI86941C (en) |
IT (1) | IT1187062B (en) |
NO (1) | NO169930C (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3167153B2 (en) * | 1991-09-30 | 2001-05-21 | パイオニア株式会社 | Speaker spacer |
GB9317345D0 (en) * | 1993-08-20 | 1993-10-06 | Centralforce Ltd | Loudspeaker |
AUPS279202A0 (en) * | 2002-06-05 | 2002-06-27 | Sportzwhistle Pty Ltd | Transducer mounting |
JP5392335B2 (en) * | 2011-10-12 | 2014-01-22 | 株式会社デンソー | Vehicle presence reporting device |
KR101451687B1 (en) * | 2013-08-20 | 2014-10-22 | 임창수 | two way speaker having coaxial effect |
US11627416B2 (en) | 2021-08-27 | 2023-04-11 | Apple Inc. | Two-way integrated speaker with piezoelectric diaphragm as tweeter |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52145215A (en) * | 1976-05-28 | 1977-12-03 | Nippon Gakki Seizo Kk | Complex type speaker |
JPS55154899A (en) * | 1979-05-22 | 1980-12-02 | Pioneer Electronic Corp | Compound loudspeaker |
US4283606A (en) * | 1979-07-16 | 1981-08-11 | Cerwin Vega, Inc. | Coaxial loudspeaker system |
JPS56112196A (en) * | 1980-02-08 | 1981-09-04 | Matsushita Electric Ind Co Ltd | Composite type speaker |
JPS5753798U (en) * | 1980-09-11 | 1982-03-29 | ||
JPS5912699A (en) * | 1982-07-13 | 1984-01-23 | Matsushita Electric Ind Co Ltd | Composite type speaker |
US4475014A (en) * | 1982-09-13 | 1984-10-02 | Harman-Motive Inc. | Acoustical transducer |
JPS5963592U (en) * | 1982-10-20 | 1984-04-26 | フォスタ−電機株式会社 | composite speaker |
-
1985
- 1985-09-02 IT IT00625/85A patent/IT1187062B/en active
- 1985-09-09 DE DE8585830227T patent/DE3583442D1/en not_active Expired - Fee Related
- 1985-09-09 EP EP85830227A patent/EP0220354B1/en not_active Expired - Lifetime
- 1985-09-09 AT AT85830227T patent/ATE65149T1/en not_active IP Right Cessation
-
1986
- 1986-05-29 DK DK251586A patent/DK171190B1/en not_active IP Right Cessation
- 1986-05-30 FI FI862323A patent/FI86941C/en not_active IP Right Cessation
- 1986-06-05 ES ES555745A patent/ES8707839A1/en not_active Expired
- 1986-06-12 KR KR1019860004662A patent/KR950002765B1/en not_active IP Right Cessation
- 1986-06-18 NO NO862429A patent/NO169930C/en not_active IP Right Cessation
- 1986-07-08 JP JP61158908A patent/JPH0738752B2/en not_active Expired - Lifetime
- 1986-07-11 CA CA000513575A patent/CA1287394C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DK171190B1 (en) | 1996-07-15 |
JPH0738752B2 (en) | 1995-04-26 |
EP0220354B1 (en) | 1991-07-10 |
NO862429D0 (en) | 1986-06-18 |
FI86941C (en) | 1992-10-26 |
CA1287394C (en) | 1991-08-06 |
ATE65149T1 (en) | 1991-07-15 |
FI862323A0 (en) | 1986-05-30 |
EP0220354A3 (en) | 1988-01-07 |
FI86941B (en) | 1992-07-15 |
DE3583442D1 (en) | 1991-08-14 |
NO169930C (en) | 1992-08-19 |
KR950002765B1 (en) | 1995-03-24 |
NO169930B (en) | 1992-05-11 |
KR870003670A (en) | 1987-04-18 |
IT1187062B (en) | 1987-12-16 |
EP0220354A2 (en) | 1987-05-06 |
IT8500625A0 (en) | 1985-09-02 |
NO862429L (en) | 1987-03-03 |
DK251586A (en) | 1987-03-03 |
DK251586D0 (en) | 1986-05-29 |
ES555745A0 (en) | 1987-09-01 |
FI862323A (en) | 1987-03-03 |
JPS6253590A (en) | 1987-03-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20040601 |