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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
IT1187062B IT00625/85A IT6258585A IT1187062B IT 1187062 B IT1187062 B IT 1187062B IT 00625/85 A IT00625/85 A IT 00625/85A IT 6258585 A IT6258585 A IT 6258585A IT 1187062 B IT1187062 B IT 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 Prodotti filed Critical S I P E Soc Italiana Prodotti
Publication of IT8500625A0 publication Critical patent/IT8500625A0/en
Priority to IT00625/85A priority Critical patent/IT1187062B/en
Priority to EP85830227A priority patent/EP0220354B1/en
Priority to AT85830227T priority patent/ATE65149T1/en
Priority to DE8585830227T priority patent/DE3583442D1/en
Priority to DK251586A priority patent/DK171190B1/en
Priority to FI862323A priority patent/FI86941C/en
Priority to ES555745A priority patent/ES8707839A1/en
Priority to KR1019860004662A priority patent/KR950002765B1/en
Priority to NO862429A priority patent/NO169930C/en
Priority to JP61158908A priority patent/JPH0738752B2/en
Priority to CA000513575A priority patent/CA1287394C/en
Application granted granted Critical
Publication of IT1187062B publication Critical patent/IT1187062B/en
Priority to US07/517,415 priority patent/US5193119A/en

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
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (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)
  • Percussion Or Vibration Massage (AREA)
  • Dental Preparations (AREA)
  • Cosmetics (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.
IT00625/85A 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 IT1187062B (en)

Priority Applications (12)

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
EP85830227A EP0220354B1 (en) 1985-09-02 1985-09-09 Loudspeaker combination with piezo-electric tweeter
AT85830227T ATE65149T1 (en) 1985-09-02 1985-09-09 SPEAKER COMBINATION WITH PIEZOELECTRIC TWEETER.
DE8585830227T DE3583442D1 (en) 1985-09-02 1985-09-09 SPEAKER COMBINATION WITH PIEZOELECTRIC HIGH TONE SPEAKER.
DK251586A DK171190B1 (en) 1985-09-02 1986-05-29 Multiple speaker with piezoelectric speaker unit
FI862323A FI86941C (en) 1985-09-02 1986-05-30 More Kons Speakerphone
ES555745A ES8707839A1 (en) 1985-09-02 1986-06-05 Loudspeaker combination with piezo-electric tweeter.
KR1019860004662A KR950002765B1 (en) 1985-09-02 1986-06-12 Multiple speakers with piezoelectric tweeter
NO862429A NO169930C (en) 1985-09-02 1986-06-18 COMPOSITION SPEAKER
JP61158908A JPH0738752B2 (en) 1985-09-02 1986-07-08 Composite speaker with piezoelectric tweeter
CA000513575A CA1287394C (en) 1985-09-02 1986-07-11 Multiple 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
US07/517,415 US5193119A (en) 1985-09-02 1990-04-27 Multiple loudspeaker

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
IT8500625A0 IT8500625A0 (en) 1985-09-02
IT1187062B true IT1187062B (en) 1987-12-16

Family

ID=11293510

Family Applications (1)

Application Number Title Priority Date Filing Date
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

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

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

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Legal Events

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

Effective date: 19970929