BR112017015384A2 - método de adaptação do ganho de volume aplicado em um amplificador e amplificador - Google Patents

método de adaptação do ganho de volume aplicado em um amplificador e amplificador

Info

Publication number
BR112017015384A2
BR112017015384A2 BR112017015384A BR112017015384A BR112017015384A2 BR 112017015384 A2 BR112017015384 A2 BR 112017015384A2 BR 112017015384 A BR112017015384 A BR 112017015384A BR 112017015384 A BR112017015384 A BR 112017015384A BR 112017015384 A2 BR112017015384 A2 BR 112017015384A2
Authority
BR
Brazil
Prior art keywords
volume gain
amplifier
maximum
desired volume
speaker
Prior art date
Application number
BR112017015384A
Other languages
English (en)
Other versions
BR112017015384B1 (pt
Inventor
Mendes Eduardo
Calmel Pierre-Emmanuel
Original Assignee
Devialet
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 Devialet filed Critical Devialet
Publication of BR112017015384A2 publication Critical patent/BR112017015384A2/pt
Publication of BR112017015384B1 publication Critical patent/BR112017015384B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H03G3/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H03G3/12—Manually-operated control in untuned amplifiers having semiconductor devices incorporating negative feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
    • H03G7/08—Volume compression or expansion in amplifiers having semiconductor devices incorporating negative feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/007—Protection circuits for transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

a presente invenção se refere a um método de adaptação do ganho de volume aplicado em um amplificador que controla pelo menos um alto-falante de um compartimento em função do ganho de volume desejado selecionado por um usuário em uma escala aumentada por um ganho de volume desejado máximo, que inclui as etapas de: determinação (204) da intensidade eficaz aplicada a pelo menos um alto-falante, cálculo (206 e 208) de um ganho de volume máximo a partir: do ganho de volume desejado, da intensidade eficaz aplicada ao alto-falante, das características térmicas do alto-falante, do ganho de volume desejado máximo, cálculo (210) de uma função monótona crescente que fornece um ganho de volume aplicado variável em função do ganho de volume desejado, de modo que a imagem do ganho de volume desejado máximo pela função monótona seja igual ao ganho de volume máximo, aplicação (212) ao amplificador, como ganho de volume aplicado, do mínimo do ganho de volume máximo e do ganho de volume aplicado variável para o ganho de volume desejado.
BR112017015384-0A 2015-01-19 2016-01-19 Método de adaptação do ganho de volume aplicado em um amplificador e amplificador BR112017015384B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1550408 2015-01-19
FR1550408A FR3031853B1 (fr) 2015-01-19 2015-01-19 Procede d'adaptation du gain de volume pour la limitation de puissance d'un amplificateur et amplificateur
PCT/EP2016/051014 WO2016116444A1 (fr) 2015-01-19 2016-01-19 Procédé d'adaptation du gain de volume pour la limitation de puissance d'un amplificateur et amplificateur

Publications (2)

Publication Number Publication Date
BR112017015384A2 true BR112017015384A2 (pt) 2018-01-16
BR112017015384B1 BR112017015384B1 (pt) 2023-02-14

Family

ID=53200078

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017015384-0A BR112017015384B1 (pt) 2015-01-19 2016-01-19 Método de adaptação do ganho de volume aplicado em um amplificador e amplificador

Country Status (9)

Country Link
US (1) US10374567B2 (pt)
EP (1) EP3248284B1 (pt)
JP (1) JP6746588B2 (pt)
KR (1) KR102474658B1 (pt)
CN (1) CN107408929B (pt)
BR (1) BR112017015384B1 (pt)
CA (1) CA2974163C (pt)
FR (1) FR3031853B1 (pt)
WO (1) WO2016116444A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI641269B (zh) * 2017-06-07 2018-11-11 瑞昱半導體股份有限公司 音訊播放裝置及其音訊控制電路
CN110868672B (zh) * 2018-08-28 2021-11-02 武汉市聚芯微电子有限责任公司 一种扬声器信号保护装置及方法
CN110868653B (zh) * 2018-08-28 2020-12-25 武汉市聚芯微电子有限责任公司 一种扬声器保护装置及方法
CN110868671B (zh) * 2018-08-28 2021-01-15 武汉市聚芯微电子有限责任公司 一种扬声器保护装置及方法
FR3091078A1 (fr) 2018-12-21 2020-06-26 Cabasse Systeme d’adaptation de la reponse spectrale d’une enceinte acoustique et de commande de la dynamique d’une chaine haute fidelite
CN115038015A (zh) * 2022-06-02 2022-09-09 深圳市长丰影像器材有限公司 一种混音调节方法、系统和存储介质

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2409389B (en) * 2003-12-09 2005-10-05 Wolfson Ltd Signal processors and associated methods
JPWO2005091671A1 (ja) * 2004-03-19 2008-05-08 パイオニア株式会社 音量調整方法、音量調整装置、音量調整プログラム、電子機器
TWI297851B (en) * 2005-08-12 2008-06-11 Compal Electronics Inc Method for preventing an output device from being damaged
US7332969B2 (en) * 2005-10-31 2008-02-19 Matsushita Electric Industrial Co., Ltd. Output offset protection for power amplifier
JP4756401B2 (ja) * 2009-12-11 2011-08-24 オンキヨー株式会社 音量調整装置およびそのプログラム
EP2453669A1 (en) * 2010-11-16 2012-05-16 Nxp B.V. Control of a loudspeaker output
EP2538555B1 (en) * 2011-06-22 2019-09-11 Nxp B.V. Control of a loudspeaker output
US8983080B2 (en) 2011-07-22 2015-03-17 Texas Instruments Incorporated Method and system for temperature protection of a speaker
US9614489B2 (en) * 2012-03-27 2017-04-04 Htc Corporation Sound producing system and audio amplifying method thereof
TW201415913A (zh) * 2012-10-08 2014-04-16 Chi Mei Comm Systems Inc 揚聲器系統及其檢測方法
US9173027B2 (en) 2013-03-08 2015-10-27 Cirrus Logic, Inc. Systems and methods for protecting a speaker

Also Published As

Publication number Publication date
EP3248284B1 (fr) 2022-02-16
FR3031853B1 (fr) 2017-02-17
EP3248284A1 (fr) 2017-11-29
WO2016116444A1 (fr) 2016-07-28
JP2018502523A (ja) 2018-01-25
CN107408929B (zh) 2021-08-13
KR102474658B1 (ko) 2022-12-05
BR112017015384B1 (pt) 2023-02-14
CN107408929A (zh) 2017-11-28
CA2974163A1 (fr) 2016-07-28
JP6746588B2 (ja) 2020-08-26
US10374567B2 (en) 2019-08-06
US20170373657A1 (en) 2017-12-28
FR3031853A1 (fr) 2016-07-22
KR20170139500A (ko) 2017-12-19
CA2974163C (fr) 2023-08-01

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Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 19/01/2016, OBSERVADAS AS CONDICOES LEGAIS