AR014317A1 - Un transductor piezoelectrico digital y el metodo de empleo del mismo - Google Patents

Un transductor piezoelectrico digital y el metodo de empleo del mismo

Info

Publication number
AR014317A1
AR014317A1 ARP990100142A ARP990100142A AR014317A1 AR 014317 A1 AR014317 A1 AR 014317A1 AR P990100142 A ARP990100142 A AR P990100142A AR P990100142 A ARP990100142 A AR P990100142A AR 014317 A1 AR014317 A1 AR 014317A1
Authority
AR
Argentina
Prior art keywords
piezoelectric
piezoelectric transducer
coupled
piezoelectric element
use method
Prior art date
Application number
ARP990100142A
Other languages
English (en)
Original Assignee
Ericsson Inc
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 Ericsson Inc filed Critical Ericsson Inc
Publication of AR014317A1 publication Critical patent/AR014317A1/es

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
    • H04R1/005—Details of transducers, loudspeakers or microphones using digitally weighted transducing elements
    • 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)
  • Circuit For Audible Band Transducer (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

Un transductor piezoeléctrico excitado digitalmente utiliza un elemento piezoeléctrico plano que cuenta con una multiplicidad de secciones conductivasaisladas eléctricamente acopladas a un lado de dicho elemento piezoeléctrico y una placa de tierra conductiva acoplada al otro lado de dicho elementopiezoeléctrico. Además, se acopla una cavidad resonante a dicho elemento piezoeléctrico e intensifica la energía acustica o sonora producida por dichotransductor piezoeléctrico. Este transductor piezoeléctrico excitado digitalmente evita los problemas vinculados con la interferenciaelectromagnética al evitar circuitos analogicos adicionales que previamente eran necesarios para crear sonidos audibles al oído humano.
ARP990100142A 1998-01-20 1999-01-15 Un transductor piezoelectrico digital y el metodo de empleo del mismo AR014317A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/009,520 US6492761B1 (en) 1998-01-20 1998-01-20 Digital piezoelectric transducers and methods

Publications (1)

Publication Number Publication Date
AR014317A1 true AR014317A1 (es) 2001-02-07

Family

ID=21738156

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP990100142A AR014317A1 (es) 1998-01-20 1999-01-15 Un transductor piezoelectrico digital y el metodo de empleo del mismo

Country Status (5)

Country Link
US (1) US6492761B1 (es)
AR (1) AR014317A1 (es)
AU (1) AU1950699A (es)
CO (1) CO4830500A1 (es)
WO (1) WO1999037123A1 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001093628A2 (en) * 2000-05-31 2001-12-06 New Transducers Limited Loudspeaker of the bending wave type and exciter therefor
GB0027510D0 (en) 2000-11-10 2000-12-27 Secr Defence Surface with varying electrical or magnetic properties
US7089069B2 (en) * 2001-08-17 2006-08-08 Carnegie Mellon University Method and apparatus for reconstruction of soundwaves from digital signals
WO2007135928A1 (ja) * 2006-05-21 2007-11-29 Trigence Semiconductor, Inc. デジタルアナログ変換装置
JP5552620B2 (ja) 2008-06-16 2014-07-16 株式会社 Ｔｒｉｇｅｎｃｅ Ｓｅｍｉｃｏｎｄｕｃｔｏｒ デジタルスピーカー駆動装置と集中制御装置とを搭載した自動車
JP5568752B2 (ja) 2009-12-09 2014-08-13 株式会社 Ｔｒｉｇｅｎｃｅ Ｓｅｍｉｃｏｎｄｕｃｔｏｒ 選択装置
JP6216885B2 (ja) * 2014-06-30 2017-10-18 富士フイルム株式会社 電気音響変換フィルムおよびデジタルスピーカ
US10638234B2 (en) * 2016-04-15 2020-04-28 Dai-Ichi Seiko Co., Ltd. Speaker system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153229A (en) * 1963-05-13 1964-10-13 Charles E Roberts Digital actuator and direct digital transducer employing same
CH539845A (de) 1972-06-30 1973-07-31 Ibm Elektroakustischer Wandler
US3947708A (en) 1974-11-27 1976-03-30 Gte Laboratories Incorporated Apparatus for and method of converting from a digital signal to an acoustic wave using a piezoelectric beam
JPS58200698A (ja) 1982-05-18 1983-11-22 Matsushita Electric Ind Co Ltd スピ−カ
US4515997A (en) * 1982-09-23 1985-05-07 Stinger Jr Walter E Direct digital loudspeaker
JPS59128900A (ja) 1983-01-12 1984-07-25 Onkyo Corp 圧電型電気音響変換器
JPS59188295A (ja) 1983-04-08 1984-10-25 Onkyo Corp 圧電型電気音響変換器の駆動方式
DE3731196A1 (de) * 1987-09-17 1989-03-30 Messerschmitt Boelkow Blohm Frequenzselektiver schallwandler
US5821666A (en) * 1995-09-22 1998-10-13 Nippondenso Co., Ltd. United control system comprising a plurality of control units independently controllable

Also Published As

Publication number Publication date
AU1950699A (en) 1999-08-02
US6492761B1 (en) 2002-12-10
CO4830500A1 (es) 1999-08-30
WO1999037123A1 (en) 1999-07-22

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