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IT1187062B - 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 - Google Patents

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

Info

Publication number
IT1187062B
IT1187062BIT00625/85AIT6258585AIT1187062BIT 1187062 BIT1187062 BIT 1187062BIT 00625/85 AIT00625/85 AIT 00625/85AIT 6258585 AIT6258585 AIT 6258585AIT 1187062 BIT1187062 BIT 1187062B
Authority
IT
Italy
Prior art keywords
tweeter
piezoelectric
speaker
membret
twe
Prior art date
Application number
IT00625/85A
Other languages
Italian (it)
Other versions
IT8500625A0 (en
Inventor
Franco Tontini
Carlo Sancisi
Original Assignee
S I P E Soc Italiana Prodotti
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
Application filed by S I P E Soc Italiana ProdottifiledCriticalS I P E Soc Italiana Prodotti
Publication of IT8500625A0publicationCriticalpatent/IT8500625A0/en
Priority to IT00625/85ApriorityCriticalpatent/IT1187062B/en
Priority to AT85830227Tprioritypatent/ATE65149T1/en
Priority to DE8585830227Tprioritypatent/DE3583442D1/en
Priority to EP85830227Aprioritypatent/EP0220354B1/en
Priority to DK251586Aprioritypatent/DK171190B1/en
Priority to FI862323Aprioritypatent/FI86941C/en
Priority to ES555745Aprioritypatent/ES8707839A1/en
Priority to KR1019860004662Aprioritypatent/KR950002765B1/en
Priority to NO862429Aprioritypatent/NO169930C/en
Priority to JP61158908Aprioritypatent/JPH0738752B2/en
Priority to CA000513575Aprioritypatent/CA1287394C/en
Application grantedgrantedCritical
Publication of IT1187062BpublicationCriticalpatent/IT1187062B/en
Priority to US07/517,415prioritypatent/US5193119A/en

Links

Classifications

Landscapes

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.
IT00625/85A1985-09-021985-09-02 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" MEMBRETIT1187062B (en)

Priority Applications (12)

Application NumberPriority DateFiling DateTitle
IT00625/85AIT1187062B (en)1985-09-021985-09-02 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
AT85830227TATE65149T1 (en)1985-09-021985-09-09 SPEAKER COMBINATION WITH PIEZOELECTRIC TWEETER.
DE8585830227TDE3583442D1 (en)1985-09-021985-09-09 SPEAKER COMBINATION WITH PIEZOELECTRIC HIGH TONE SPEAKER.
EP85830227AEP0220354B1 (en)1985-09-021985-09-09Loudspeaker combination with piezo-electric tweeter
DK251586ADK171190B1 (en)1985-09-021986-05-29 Multiple speaker with piezoelectric speaker unit
FI862323AFI86941C (en)1985-09-021986-05-30 More Kons Speakerphone
ES555745AES8707839A1 (en)1985-09-021986-06-05Loudspeaker combination with piezo-electric tweeter.
KR1019860004662AKR950002765B1 (en)1985-09-021986-06-12 Multiple speakers with piezoelectric tweeter
NO862429ANO169930C (en)1985-09-021986-06-18 COMPOSITION SPEAKER
JP61158908AJPH0738752B2 (en)1985-09-021986-07-08 Composite speaker with piezoelectric tweeter
CA000513575ACA1287394C (en)1985-09-021986-07-11Multiple loudspeaker with piezoelectric "tweeter" supported in such away as to allow complete exploitation of the main loudspeaker diaphragm, the surface of which reflects the radiation emitted from the rear by the ceramic disk and by the piezoelectric "tweeter" diaphragm
US07/517,415US5193119A (en)1985-09-021990-04-27Multiple loudspeaker

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
IT00625/85AIT1187062B (en)1985-09-021985-09-02 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 NumberPublication Date
IT8500625A0 IT8500625A0 (en)1985-09-02
IT1187062Btrue IT1187062B (en)1987-12-16

Family

ID=11293510

Family Applications (1)

Application NumberTitlePriority DateFiling Date
IT00625/85AIT1187062B (en)1985-09-021985-09-02 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

Country Status (11)

CountryLink
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)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JP3167153B2 (en)*1991-09-302001-05-21パイオニア株式会社 Speaker spacer
GB9317345D0 (en)*1993-08-201993-10-06Centralforce LtdLoudspeaker
AUPS279202A0 (en)*2002-06-052002-06-27Sportzwhistle Pty LtdTransducer mounting
JP5392335B2 (en)*2011-10-122014-01-22株式会社デンソー Vehicle presence reporting device
KR101451687B1 (en)*2013-08-202014-10-22임창수two way speaker having coaxial effect
US11627416B2 (en)2021-08-272023-04-11Apple Inc.Two-way integrated speaker with piezoelectric diaphragm as tweeter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS52145215A (en)*1976-05-281977-12-03Nippon Gakki Seizo KkComplex type speaker
JPS55154899A (en)*1979-05-221980-12-02Pioneer Electronic CorpCompound loudspeaker
US4283606A (en)*1979-07-161981-08-11Cerwin Vega, Inc.Coaxial loudspeaker system
JPS56112196A (en)*1980-02-081981-09-04Matsushita Electric Ind Co LtdComposite type speaker
JPS5753798U (en)*1980-09-111982-03-29
JPS5912699A (en)*1982-07-131984-01-23Matsushita Electric Ind Co LtdComposite type speaker
US4475014A (en)*1982-09-131984-10-02Harman-Motive Inc.Acoustical transducer
JPS5963592U (en)*1982-10-201984-04-26フォスタ−電機株式会社 composite speaker

Also Published As

Publication numberPublication date
IT8500625A0 (en)1985-09-02
EP0220354A3 (en)1988-01-07
DE3583442D1 (en)1991-08-14
KR870003670A (en)1987-04-18
ATE65149T1 (en)1991-07-15
DK171190B1 (en)1996-07-15
FI862323L (en)1987-03-03
NO862429L (en)1987-03-03
CA1287394C (en)1991-08-06
JPH0738752B2 (en)1995-04-26
KR950002765B1 (en)1995-03-24
EP0220354B1 (en)1991-07-10
FI86941C (en)1992-10-26
DK251586A (en)1987-03-03
ES555745A0 (en)1987-09-01
NO169930C (en)1992-08-19
JPS6253590A (en)1987-03-09
NO169930B (en)1992-05-11
DK251586D0 (en)1986-05-29
FI862323A0 (en)1986-05-30
EP0220354A2 (en)1987-05-06
FI86941B (en)1992-07-15
ES8707839A1 (en)1987-09-01
NO862429D0 (en)1986-06-18

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TAFee payment date (situation as of event date), data collected since 19931001

Effective date:19970929
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