FR2455839A1 - Procede et dispositif de protection d'un transducteur electromecanique - Google Patents

Procede et dispositif de protection d'un transducteur electromecanique

Info

Publication number
FR2455839A1
FR2455839A1 FR8001790A FR8001790A FR2455839A1 FR 2455839 A1 FR2455839 A1 FR 2455839A1 FR 8001790 A FR8001790 A FR 8001790A FR 8001790 A FR8001790 A FR 8001790A FR 2455839 A1 FR2455839 A1 FR 2455839A1
Authority
FR
France
Prior art keywords
control device
transducer
protecting
electromechanical transducer
electromechanical
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR8001790A
Other languages
English (en)
Other versions
FR2455839B1 (fr
Inventor
Daniel Von Recklinghausen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ELECTRO AUDIO DYNAMICS Inc
Original Assignee
ELECTRO AUDIO DYNAMICS 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 ELECTRO AUDIO DYNAMICS Inc filed Critical ELECTRO AUDIO DYNAMICS Inc
Publication of FR2455839A1 publication Critical patent/FR2455839A1/fr
Application granted granted Critical
Publication of FR2455839B1 publication Critical patent/FR2455839B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/165—Equalizers; Volume or gain control in limited frequency bands
    • 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

Abstract

L'INVENTION CONCERNE LES CIRCUITS D'ATTAQUE DES TRANSDUCTEURS ELECTROMECANIQUES. LE CIRCUIT D'ATTAQUE D'UN TRANSDUCTEUR ELECTROMECANIQUE 1 COMPREND NOTAMMENT UN PREAMPLIFICATEUR 7, UN DISPOSITIF DE COMMANDE 5 ET UN AMPLIFICATEUR 3. UNE LIGNE 4 RENVOIE VERS LE DISPOSITIF DE COMMANDE UN SIGNAL QUI EST CARACTERISTIQUE DES CONDITIONS DE FONCTIONNEMENT DU TRANSDUCTEUR, ET CE DISPOSITIF DE COMMANDE MODIFIE ALORS LE SIGNAL D'ENTREE DE FACON A EVITER TOUTE SURCHARGE DU TRANSDUCTEUR. APPLICATION AUX SYSTEMES DE REPRODUCTION SONORE.
FR8001790A 1979-05-03 1980-01-28 Procede et dispositif de protection d'un transducteur electromecanique Expired FR2455839B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/035,496 US4327250A (en) 1979-05-03 1979-05-03 Dynamic speaker equalizer

Publications (2)

Publication Number Publication Date
FR2455839A1 true FR2455839A1 (fr) 1980-11-28
FR2455839B1 FR2455839B1 (fr) 1986-07-11

Family

ID=21883065

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8001790A Expired FR2455839B1 (fr) 1979-05-03 1980-01-28 Procede et dispositif de protection d'un transducteur electromecanique

Country Status (7)

Country Link
US (1) US4327250A (fr)
JP (1) JPS55156498A (fr)
CA (1) CA1153702A (fr)
DE (1) DE3003466A1 (fr)
FR (1) FR2455839B1 (fr)
GB (1) GB2050754B (fr)
IT (1) IT1126914B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0208474A2 (fr) * 1985-07-05 1987-01-14 Harman International Industries, Incorporated Système sonore pour automobiles
FR2728426A1 (fr) * 1994-12-20 1996-06-21 Carpentier Claude Procede et dispositif d'egalisation dynamique perfectionne
FR3056064A1 (fr) * 2016-09-14 2018-03-16 Jeremy Clouzeau Systeme de correction par pre-analyse pour transducteurs electrodynamiques

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4809338A (en) * 1985-07-05 1989-02-28 Harman International Industries, Incorporated Automotive sound system
US4868870A (en) * 1985-10-01 1989-09-19 Schrader Daniel J Servo-controlled amplifier and method for compensating for transducer nonlinearities
GB2187607B (en) * 1986-03-05 1990-03-21 Malcolm John Hawksford Apparatus and methods for driving loupspeaker systems
WO1988000410A1 (fr) * 1986-07-02 1988-01-14 Gt Electronics Haut-parleur emule pour guitare
US4953218A (en) * 1987-07-16 1990-08-28 Hughes Jr Robert K Foreground music system using current amplification
US4864624A (en) * 1988-03-30 1989-09-05 Tichy Thomas H Piezoelectric loudspeaker with thermal protection
US4887298A (en) * 1988-06-15 1989-12-12 Renkus-Heinz Electronic circuit for sensing disconnect or failure of a power output sense line in an audio power system
KR910006052B1 (ko) * 1989-03-21 1991-08-12 삼성전자 주식회사 전화기에 있어서 과도음압 방지회로
DK168681B1 (da) * 1992-03-02 1994-05-16 Bang & Olufsen As Højttaler med midler til frekvensafhængig amplituderegulering
CH685657A5 (de) * 1992-03-24 1995-08-31 Maximilian Hobelsberger Vorrichtung zur aktiven Simulation einer akustischen Impedanz.
US5430802A (en) * 1992-06-24 1995-07-04 Page; Steven L. Audio speaker system
DE4336609A1 (de) * 1993-10-27 1995-05-04 Klippel Wolfgang Prädikative Schutzschaltung für elektroakustische Schallsender
US5471527A (en) 1993-12-02 1995-11-28 Dsc Communications Corporation Voice enhancement system and method
US5548650A (en) * 1994-10-18 1996-08-20 Prince Corporation Speaker excursion control system
US5541998A (en) * 1994-10-20 1996-07-30 Lar Electronics Corp. Health club audio system
US5523715A (en) * 1995-03-10 1996-06-04 Schrader; Daniel J. Amplifier arrangement and method and voltage controlled amplifier and method
US6125188A (en) * 1997-10-18 2000-09-26 Matthew C Hennessy Compact personal monitor system
US7298852B2 (en) 2001-07-11 2007-11-20 American Technology Corporation Dynamic power sharing in a multi-channel sound system
US7092536B1 (en) * 2002-05-09 2006-08-15 Harman International Industries, Incorporated System for transducer compensation based on ambient conditions
US7274793B2 (en) * 2002-08-05 2007-09-25 Multi Service Corporation Excursion limiter
US6940981B2 (en) * 2003-03-12 2005-09-06 Qsc Audio Products, Inc. Apparatus and method of limiting power applied to a loudspeaker
US7171010B2 (en) * 2003-09-11 2007-01-30 Boston Acoustics, Inc. Dynamic bass boost apparatus and method
US7372966B2 (en) * 2004-03-19 2008-05-13 Nokia Corporation System for limiting loudspeaker displacement
US8019088B2 (en) * 2007-01-23 2011-09-13 Audyssey Laboratories, Inc. Low-frequency range extension and protection system for loudspeakers
CN101472217A (zh) * 2007-12-27 2009-07-01 深圳富泰宏精密工业有限公司 受话器频率响应曲线调节方法
US8712065B2 (en) * 2008-04-29 2014-04-29 Bang & Olufsen Icepower A/S Transducer displacement protection
US8411877B2 (en) * 2009-10-13 2013-04-02 Conexant Systems, Inc. Tuning and DAC selection of high-pass filters for audio codecs
US8750525B2 (en) * 2010-01-28 2014-06-10 Harris Corporation Method to maximize loudspeaker sound pressure level with a high peak to average power ratio audio source
EP2541970B1 (fr) 2011-06-29 2014-01-01 ST-Ericsson SA Préfiltrage pour la protection de haut-parleurs
FR2980070B1 (fr) 2011-09-13 2013-11-15 Parrot Procede de renforcement des frequences graves dans un signal audio numerique.
US9247342B2 (en) 2013-05-14 2016-01-26 James J. Croft, III Loudspeaker enclosure system with signal processor for enhanced perception of low frequency output
US9706302B2 (en) 2014-02-05 2017-07-11 Sennheiser Communications A/S Loudspeaker system comprising equalization dependent on volume control
WO2016137616A1 (fr) * 2015-02-23 2016-09-01 Revx Technologies Procédé de réduction de la fatigue auditive
EP3453186B1 (fr) 2016-05-02 2020-10-14 Purifi ApS Procédé de contrôle d'excursion de diaphragme de haut-parleur
DE102018213834B3 (de) 2018-07-02 2020-01-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und verfahren zur modifizierung eines lautsprechersignals zur vermeidung einer membranüberauslenkung
DE102019216504A1 (de) 2019-10-25 2021-04-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Konzept zur Modifizierung eines Lautsprechersignals zur Vermeidung einer Membranüberauslenkung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085919B (de) * 1959-04-23 1960-07-28 Philips Nv Wiedergabevorrichtung mit selbsttaetiger Verstaerkungsregelung
US3334184A (en) * 1963-06-21 1967-08-01 Philips Corp Loudspeaker with feedback signal generator
DE2448506A1 (de) * 1974-10-11 1976-04-22 Backes & Mueller Schaltungsanordnung zum schutz dynamischer lautsprecher vor ueberlastung
DE2742919A1 (de) * 1976-09-27 1978-03-30 Hitachi Ltd Schutzschaltung fuer elektroakustischen wandler
GB1520156A (en) * 1977-03-02 1978-08-02 British Broadcasting Corp Loudspeakers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449518A (en) * 1965-09-15 1969-06-10 Louis W Erath Sound reproduction compensation system
DE1299328B (de) * 1966-08-02 1969-07-17 Deutsche Post Rundfunk Verfahren und Anordnung zum Schutz vor UEberlastung von elektrisch angetriebenen mechanischen Schwingungssystemen, vorzugsweise Lautsprechern bzw. Lautsprecheranordnungen
US3937887A (en) * 1969-05-15 1976-02-10 Ben O. Key Acoustic power system
US3821473A (en) * 1969-06-20 1974-06-28 J Mullins Sound reproduction system with driven and undriven speakers and motional feedback
NL7312429A (fr) * 1972-09-11 1974-03-13
DE2415816C3 (de) * 1974-04-01 1981-10-29 Arndt 7500 Karlsruhe Klingenberg Verfahren zur Begrenzung der maximalen Belastung von elektroakustischen Wandlersystemen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085919B (de) * 1959-04-23 1960-07-28 Philips Nv Wiedergabevorrichtung mit selbsttaetiger Verstaerkungsregelung
US3334184A (en) * 1963-06-21 1967-08-01 Philips Corp Loudspeaker with feedback signal generator
DE2448506A1 (de) * 1974-10-11 1976-04-22 Backes & Mueller Schaltungsanordnung zum schutz dynamischer lautsprecher vor ueberlastung
DE2742919A1 (de) * 1976-09-27 1978-03-30 Hitachi Ltd Schutzschaltung fuer elektroakustischen wandler
GB1520156A (en) * 1977-03-02 1978-08-02 British Broadcasting Corp Loudspeakers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0208474A2 (fr) * 1985-07-05 1987-01-14 Harman International Industries, Incorporated Système sonore pour automobiles
EP0208474A3 (fr) * 1985-07-05 1988-08-31 Harman International Industries, Incorporated Système sonore pour automobiles
FR2728426A1 (fr) * 1994-12-20 1996-06-21 Carpentier Claude Procede et dispositif d'egalisation dynamique perfectionne
FR3056064A1 (fr) * 2016-09-14 2018-03-16 Jeremy Clouzeau Systeme de correction par pre-analyse pour transducteurs electrodynamiques

Also Published As

Publication number Publication date
FR2455839B1 (fr) 1986-07-11
IT1126914B (it) 1986-05-21
CA1153702A (fr) 1983-09-13
DE3003466C2 (fr) 1988-12-15
GB2050754A (en) 1981-01-07
IT8047763A0 (it) 1980-01-30
DE3003466A1 (de) 1980-11-13
JPS55156498A (en) 1980-12-05
GB2050754B (en) 1983-11-23
US4327250A (en) 1982-04-27
JPS6120198B2 (fr) 1986-05-21

Similar Documents

Publication Publication Date Title
FR2455839A1 (fr) Procede et dispositif de protection d'un transducteur electromecanique
EP0231721A3 (fr) Commande automatique de gain pour appareil auditif
FI863169A (fi) Fullstaendigt dubbelriktad hoegtalartelefon foer radio- och kabeltelefonsystem.
AU7854794A (en) Device for determining the effect of pulsed magnetic fields on an organism
ATE38753T1 (de) Echokompensatorsysteme.
FR2435079A1 (fr) Circuit de compensation de l'erreur de phase residuelle pour un asservissement numerique
GB1402530A (en) Detecting damage to glass
ES8605638A1 (es) Perfeccionamientos en un dispositivo para detectar cambios en la inclinacion de un cuerpo
DE3940198A1 (de) Infraschall-hydrophon
SE7704047L (sv) Sett och anordning for eliminering av inverkan av brus pa styrsignaler i elektrostatkopieringsmaskiner
JPS5576406A (en) Operation monitor control board
JPS56157642A (en) Sound indication device for car
JPS5752933A (en) Input and output control system
JPS5536846A (en) Sound alarm mechanism of small-size camera
ES475021A1 (es) Un circuito para suprimir ruido de audiofrecuencia en una senal procedente de un disco fonografico.
JPS5514774A (en) Output limit amplifier circuit
ES2043695T3 (es) Dispositivo de conexion para un regulador electronico analogico.
FR2643154B1 (fr) Appareil de detection et de signalisation des chutes des corps dans l'eau
JPS57113647A (en) Signal concealing device
JPS5535590A (en) Automatic sound volume control device
FR2405609A1 (fr) Procede de sonorisation de lieux et locaux publics
BE627974A (fr) Dispositif pour amplifier des signaux acoustiques et un signal modifié déduit de ces signaux.
ES8103421A1 (es) Mejoras introducidas en los sistemas de deteccion y control de senales de alarma
JPS57136858A (en) Facsimile
FR2704112B1 (fr) Dispositif d'amplification de signaux de télévision à classe de fonctionnement variable, prédéterminée pour l'élimination des erreurs de transmission.

Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
TP Transmission of property
ST Notification of lapse