EP0659029B1 - Dispositif de sélection d'un haut-parleur - Google Patents

Dispositif de sélection d'un haut-parleur Download PDF

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Publication number
EP0659029B1
EP0659029B1 EP94119808A EP94119808A EP0659029B1 EP 0659029 B1 EP0659029 B1 EP 0659029B1 EP 94119808 A EP94119808 A EP 94119808A EP 94119808 A EP94119808 A EP 94119808A EP 0659029 B1 EP0659029 B1 EP 0659029B1
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
radio
appliance
motor vehicle
switch
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.)
Expired - Lifetime
Application number
EP94119808A
Other languages
German (de)
English (en)
Other versions
EP0659029A3 (fr
EP0659029A2 (fr
Inventor
Eberhard Grundig E.M.V. Schwarz
Heinrich Grundig E.M.V. Fischelmayer
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.)
Grundig AG
Original Assignee
Grundig AG
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 Grundig AG filed Critical Grundig AG
Publication of EP0659029A2 publication Critical patent/EP0659029A2/fr
Publication of EP0659029A3 publication Critical patent/EP0659029A3/fr
Application granted granted Critical
Publication of EP0659029B1 publication Critical patent/EP0659029B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/01—Input selection or mixing for amplifiers or loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments

Definitions

  • the invention relates to a device for switching a Loudspeaker according to the preamble of claim 1 and starts from EP-A-0 483 956.
  • the switching of an installed in a motor vehicle Speaker from the speaker output of an audio device to the Speaker output of a radio.
  • An audio device in this case, a car radio or a cassette player or a CD player and other devices, as well as combinations thereof.
  • Under a Radio equipment in turn is understood to be a car phone device Company radio, a speaking on-board computer or the like.
  • Radio equipment installed in a motor vehicle is state of the art.
  • the tendency the installation of such devices is increasing, be it that you already have these devices can be installed at the factory, or retrofitted using a retrofit kit.
  • eye contact with the listener is often required, which affects the driver’s attention to road traffic.
  • a solution to this problem is the subject of the utility model DE-U-93 08 197.9 discloses.
  • the speakerphone includes a microphone and an earphone.
  • the earphone is detachable by removing the earphone cord from one in the body of the device stored cable drum is unwound. After using the earphone the cable is either by hand or by motor from the cable drum wound up. By listening through the earphones there is an acoustic feedback locked out.
  • the recording and storage of the earphones requires from the user a certain amount of attention to him from driving the motor vehicle distracts again.
  • WO-A-90/09706 discloses a circuit which is the speaker switches from a radio to a radio telephone and vice versa.
  • EP-A1-0 368 291 Another hands-free device is described in EP-A1-0 368 291 also represents an elegant solution. While the microphone is on a suitable Is attached to the front of the motor vehicle, is located Speakers at the top of the driver's backrest, so very close the driver's ear. This loudspeaker arrangement is designed to avoid feedback certainly cheap. To realize this, however, an elaborate Wiring can be done. Especially for retrofitting in a This version is not well suited for motor vehicles.
  • double coil speakers built-in be both from the built-in audio device in the vehicle, as can also be controlled by the radio.
  • double coil speakers For example, instead of an existing speaker for the Built-in audio device. This solves the space problem, but it is Playback quality and efficiency are not particularly high when on the one coil an audio signal and on the other coil a radio signal is played.
  • the installation of a double coil speaker more expensive than the existing single-coil loudspeaker.
  • the object of the invention is to provide a hands-free device for a motor vehicle create that with the least possible material and labor, without manual Activity of the motor vehicle driver, a perfect reproduction of the output signal of a radio guaranteed.
  • One is also in the motor vehicle audio device may not play the radio to disturb.
  • the device should in particular also be retrofitted in a motor vehicle may be suitable.
  • a radio (3) is also integrated in the circuit.
  • the audio device (2) it can be, for example, a car radio or a cassette player or trade a CD player and more.
  • a radio (3) can be used here Car phone or a company radio or a speaking on-board computer or the like can be understood. Strictly speaking, a speaking on-board computer falls not in the "radio" category, but in this case be its assignment allowed under the collective term "radio".
  • Loudspeaker (4) is expediently the driver-side installed in the motor vehicle Front speakers used. Of course, anyone else can existing speakers can be used.
  • Loudspeaker (4) is expediently the driver-side installed in the motor vehicle Front speakers used. Of course, anyone else can existing speakers can be used.
  • the Speaker output is on the switch module (1) (5.3) of the audio device (2) and the speaker output (6) of the Radio (3) connected.
  • This line (9) continues to the mute input (16) of the audio device.
  • the audio device (2) and the Switch module (1) are through the ground line (18) and the power supply line (17) for the switching module (1).
  • One labeled (19) The line leads from the switch module (1) to the common loudspeaker (4).
  • the switch module (1) connects the loudspeaker output (6) of the radio to the loudspeaker (4). If the audio device (2) is now put into operation, the switch module (1) switches the speaker output (5.3) to the speaker (4), the speaker output (6) is separated from it. If the radio (3) becomes active, for example when there is an incoming call, a line switch (9) activates a mute function in the audio device that is not to be dealt with here because it is known. All speakers connected to the audio device are muted. The speaker output (6) of the radio (3) is switched to the speaker (4) by the switch module (1), the speaker output (5.3) of the audio device (2) is separated from it.
  • the hands-free system is now ready for operation, the user can, for example, make calls without having to carry out any manual activity.
  • Said mute input (16) is present in the audio device of the exemplary embodiment listed.
  • the set-up also works with audio devices without automatic muting. In this case, however, the user must turn the volume control of the audio device to zero when there is an incoming call. However, this is usually an activity that does not require too much attention and hardly distracts the driver.
  • Switching the loudspeaker (4) from the audio device (2) to the radio (3) using the switch module (1) works in exactly the same way as with an audio device with mute.
  • the switch module (1) is constructed in such a way that the hands-free system functions perfectly even when there is no audio device (for example in the disassembled state for repair and the like).
  • the switch module (1) consists essentially of an electronic one Circuit (7) and an electromechanical switch (8).
  • an electromechanical Switch (8) a relay is preferably used.
  • the Relay ensures a potential-free switching process, a safe galvanic Separation, no retroactive effect and low contact resistance.
  • the position of the shift finger (21) in Relay so that the radio (3) is always connected to the loudspeaker (4) (Break contacts).
  • the electronic Circuit (7) in the switching module (1) is constructed so that it is high-frequency interference signals are not impaired in their function.
  • the resistances (20) have the function that with capacitive speaker outputs of Audio or radio devices no charging of the capacitors when switching must take place, which would result in a crack. Instead, the Capacitors are constantly in charge according to their normal state held, so there is no change in potential and therefore no cracking.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Set Structure (AREA)
  • Burglar Alarm Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Claims (6)

  1. Dispositif pour commuter un haut-parleur (4) dans un espace intérieur de véhicule automobile entre un appareil audio (2) et un appareil radio (3), les sorties (5) du haut-parleur pour l'appareil audio (2) étant assourdies par voie électronique lorsqu'un signal d'entrée ou de sortie est présent dans l'appareil radio (3),
    caractérisé en ce
    qu'il est prévu un module de commutation (1), qui, dans le cas où un signal d'entrée ou de sortie est présent au niveau de l'appareil audio (3), commute le haut-parleur (4) sur la sortie (3) du haut-parleur de l'appareil radio (3) et simultanément le déconnecte de la sortie (5) du haut-parleur de l'appareil audio (2), et qu'une résistance (5.3, 6) respective (20) est disposée entre les sorties (5.3, 6) du haut-parleur de l'appareil audio (2) ou de l'appareil radio (3) et le module de commutation (1) de telle sorte que lors du processus de commutation, il n'apparaít aucun bruit de claquement.
  2. Dispositif selon la revendication 1,
    caractérisé en ce
    que le module de commutation (1) est constitué par un circuit électronique (7) et par un commutateur électromécanique (8).
  3. Dispositif selon les revendications 1 et 2,
    caractérisé en ce
    que le commutateur électromécanique (8) est un relais.
  4. Dispositif selon les revendications 1 à 3,
    caractérisé en ce
    que le commutateur électromécanique (8) commute toujours la liaison entre le haut-parleur (4) et l'appareil audio (3), lorsque l'appareil radio (2) n'est pas en service.
  5. Dispositif selon une ou plusieurs des revendications 1 à 4, caractérisé en ce
    que le commutateur électromécanique (8) relie la sortie (6) du haut-parleur de l'appareil audio (2) au haut-parleur (4) lorsque l'appareil audio (2) fonctionne et que l'appareil radio (3) n'est pas actif.
  6. Dispositif selon la revendication 1,
    caractérisé en ce
    qu'en ce qui concerne le haut-parleur (4), il s'agit du haut-parleur avant situé du côté du conducteur d'un véhicule automobile.
EP94119808A 1993-12-16 1994-12-15 Dispositif de sélection d'un haut-parleur Expired - Lifetime EP0659029B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4342917 1993-12-16
DE4342917A DE4342917A1 (de) 1993-12-16 1993-12-16 Einrichtung zum Umschalten eines Lautsprechers

Publications (3)

Publication Number Publication Date
EP0659029A2 EP0659029A2 (fr) 1995-06-21
EP0659029A3 EP0659029A3 (fr) 1996-02-07
EP0659029B1 true EP0659029B1 (fr) 2000-10-18

Family

ID=6505174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94119808A Expired - Lifetime EP0659029B1 (fr) 1993-12-16 1994-12-15 Dispositif de sélection d'un haut-parleur

Country Status (3)

Country Link
EP (1) EP0659029B1 (fr)
AT (1) ATE197107T1 (fr)
DE (2) DE4342917A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7096047B2 (en) 2001-11-30 2006-08-22 Motorola, Inc. Electronic audio accessory for use with automotive stereo loudspeakers

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19614148C1 (de) * 1996-04-10 1997-09-04 Bosch Gmbh Robert Fernsprechendgerät mit einem Anschluß für einen Telefon-Handapparat
DE19725284C2 (de) * 1997-06-13 1999-08-05 Mechatronik Automobilausruestu Vorrichtung und Verfahren zum Einbau einer Freisprechschaltung für ein Telefon in ein Kraftfahrzeug
DE19742797C1 (de) * 1997-09-27 1999-04-22 Grundig Ag Kraftfahrzeugkommunikationsvorrichtung
JP3042681B2 (ja) * 1998-04-15 2000-05-15 怡利電子工業股▲ひん▼有限公司 自動車音響装置のスピーカと結合した携帯電話握持不要受話器
FI982567A (fi) * 1998-11-27 2000-05-28 Kyrel Oy Sovitelma puhelimen handsfree-toiminnoksi
DE19942858C2 (de) * 1999-09-08 2003-04-03 Am3 Automotive Multimedia Ag Sitzplatzbezogene Beschallungseinrichtung
DE19945620A1 (de) * 1999-09-23 2001-04-12 Siemens Ag Befestigungsvorrichtung für ein Mobiltelefon
EP1341394B1 (fr) * 2002-02-27 2016-12-28 Thomson Licensing Dispositif électronique de traitement d'un signal audio
DE202011003798U1 (de) 2011-03-04 2011-05-26 Hilse, Andreas, 10437 Reisemobiles Soundsystem mit automatischer Quellenumschaltung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52127713U (fr) * 1976-03-26 1977-09-28
US4060766A (en) * 1976-05-07 1977-11-29 Nissan Denshi Company Limited Automatic signal switching apparatus for a combined transceiver and radio or tape recorder set
DE3316818C2 (de) * 1983-05-07 1995-05-11 Ernst Hans Hellmut Sonnenblende mit audiovisuellen Einrichtungen
EP0231290A1 (fr) * 1985-07-19 1987-08-12 Custom Product Development Pty. Ltd. Systeme telephonique mobile
FI885161A (fi) * 1988-11-09 1990-05-10 Nokia Mobira Oy Arrangemang vid dubbelriktad telefonfoerbindelse.
DE3903461A1 (de) * 1989-02-06 1990-08-09 Grundig Emv Kombination eines autoradios mit anderen kommunikationsmitteln
WO1990009706A1 (fr) * 1989-02-14 1990-08-23 In-Car Systems Limited Appareil telephonique pour vehicule
GB2249447B (en) * 1990-10-30 1995-05-24 Technophone Ltd Combined broadcast radio receiver and radio telephone
DE9308197U1 (fr) * 1993-06-01 1993-07-29 E. Lead Electronic Co. Ltd., Changhua, Tw

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7096047B2 (en) 2001-11-30 2006-08-22 Motorola, Inc. Electronic audio accessory for use with automotive stereo loudspeakers

Also Published As

Publication number Publication date
EP0659029A3 (fr) 1996-02-07
DE4342917A1 (de) 1995-06-22
DE59409552D1 (de) 2000-11-23
EP0659029A2 (fr) 1995-06-21
ATE197107T1 (de) 2000-11-15

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