BRPI0500605A - transdutor eletroacústico e uso de pelo menos duas fontes sonoras - Google Patents

transdutor eletroacústico e uso de pelo menos duas fontes sonoras

Info

Publication number
BRPI0500605A
BRPI0500605A BRPI0500605A BRPI0500605A BR PI0500605 A BRPI0500605 A BR PI0500605A BR PI0500605 A BRPI0500605 A BR PI0500605A BR PI0500605 A BRPI0500605 A BR PI0500605A
Authority
BR
Brazil
Prior art keywords
sym
sound sources
arrangement
electro
acoustic transducer
Prior art date
Application number
Other languages
English (en)
Inventor
Antonio Katsushi Fujimoto
Original Assignee
Gradiente Eletronica S A
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 Gradiente Eletronica S A filed Critical Gradiente Eletronica S A
Priority to BRPI0500605 priority Critical patent/BRPI0500605A/pt
Priority to PCT/BR2005/000145 priority patent/WO2006089382A1/en
Publication of BRPI0500605A publication Critical patent/BRPI0500605A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

"TRANSDUTOR ELETROACúSTICO E USO DE PELO MENOS DUAS FONTES SONORAS". A presente invenção se refere a um transdutor eletroacústico (10) que compreende um arranjo de pelo menos duas fontes sonoras de pequena espessura, baixa potência e alta impedância (20 a 29) dispostas em um painel (30), em que tal arranjo deve corresponder à relação Pt = <sym>Pi e lt = li/<sym>N, em que Pt é a potência total do transdutor eletroacústico de acordo com a presente invenção, e <sym>Pi é a somatória das potências individuais de cada fonte sonora (20, 29) empregada no arranjo, e lt = li/<sym>N, em que lt é a impedância total do transdutor eletroacústico de acordo com a presente invenção, li é a impedância individual de cada fonte sonora (20 a 29), e <sym>N é a somatória do número de fontes sonoras empregadas no arranjo.
BRPI0500605 2005-02-23 2005-02-23 transdutor eletroacústico e uso de pelo menos duas fontes sonoras BRPI0500605A (pt)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BRPI0500605 BRPI0500605A (pt) 2005-02-23 2005-02-23 transdutor eletroacústico e uso de pelo menos duas fontes sonoras
PCT/BR2005/000145 WO2006089382A1 (en) 2005-02-23 2005-07-29 Electro-acoustic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0500605 BRPI0500605A (pt) 2005-02-23 2005-02-23 transdutor eletroacústico e uso de pelo menos duas fontes sonoras

Publications (1)

Publication Number Publication Date
BRPI0500605A true BRPI0500605A (pt) 2006-10-10

Family

ID=36926977

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0500605 BRPI0500605A (pt) 2005-02-23 2005-02-23 transdutor eletroacústico e uso de pelo menos duas fontes sonoras

Country Status (2)

Country Link
BR (1) BRPI0500605A (pt)
WO (1) WO2006089382A1 (pt)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919499A (en) * 1974-01-11 1975-11-11 Magnepan Inc Planar speaker
US4385210A (en) * 1980-09-19 1983-05-24 Electro-Magnetic Corporation Electro-acoustic planar transducer
US4899390A (en) * 1986-09-19 1990-02-06 Matsushita Electric Industrial Co., Ltd. Thin speaker having an enclosure within an open portion and a closed portion
WO1991004643A1 (en) * 1989-09-22 1991-04-04 Anthony Leonard Trufitt Planar speakers
US5425107A (en) * 1992-04-09 1995-06-13 Bertagni Electronic Sound Transducers, International Corporation Planar-type loudspeaker with dual density diaphragm
KR20030079956A (ko) * 2001-01-22 2003-10-10 어메리컨 테크놀로지 코포레이션 개선된 단일단부 평면 자기 스피커
KR100436724B1 (ko) * 2002-03-29 2004-06-22 삼성전기주식회사 초박형 평면 스피커 및 그 제조방법

Also Published As

Publication number Publication date
WO2006089382A1 (en) 2006-08-31

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Legal Events

Date Code Title Description
B07A Technical examination (opinion): publication of technical examination (opinion)
B08F Application fees: dismissal - article 86 of industrial property law

Free format text: REFERENTE A 12A ANUIDADE.

B08K Lapse as no evidence of payment of the annual fee has been furnished to inpi (acc. art. 87)