WO2012013743A1 - Véhicule équipé d'un haut-parleur centre-arrière - Google Patents

Véhicule équipé d'un haut-parleur centre-arrière Download PDF

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Publication number
WO2012013743A1
WO2012013743A1 PCT/EP2011/062989 EP2011062989W WO2012013743A1 WO 2012013743 A1 WO2012013743 A1 WO 2012013743A1 EP 2011062989 W EP2011062989 W EP 2011062989W WO 2012013743 A1 WO2012013743 A1 WO 2012013743A1
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WO
WIPO (PCT)
Prior art keywords
center
speaker
vehicle
audio signal
exciter
Prior art date
Application number
PCT/EP2011/062989
Other languages
English (en)
Inventor
Andreas Silzle
Ulrik Heise
Peter Prokein
Julian Popp
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der Angwandten Forschung E.V.
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 Fraunhofer-Gesellschaft zur Förderung der Angwandten Forschung E.V. filed Critical Fraunhofer-Gesellschaft zur Förderung der Angwandten Forschung E.V.
Publication of WO2012013743A1 publication Critical patent/WO2012013743A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0217—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0217—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for loud-speakers
    • B60R11/0223—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for loud-speakers of flat type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
    • B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
    • B60R2011/0028—Ceiling, e.g. roof rails
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic

Definitions

  • the present invention relates to a vehicle having an audio sound system and more specifically at least one center-rear-speaker or exciter arranged in the ceiling of the vehicle.
  • An audio sound system for a car may employ, for example, a multiple channel surround audio system which comprises a plurality of transducers, like loudspeakers.
  • the loudspeakers may be positioned at different locations in the automobile passenger compartment.
  • a center channel speaker may be situated in the dashboard of the automobile and a second center-rear-speaker may be positioned in a console positioned between two front seats of the automobile.
  • the audio sound system may further comprise left and right channel loudspeakers which may, for example, be positioned on the left side and on the right side of the dashboard, respectively.
  • Low frequencies may be emitted by left and right loudspeakers, which may be positioned in the left front door and right front door, respectively.
  • Left and right channel spectra components above approximately 100 Hz are radiated by the loudspeakers which are positioned in the left rear door and the right rear door, respectively.
  • a bass channel which may include low frequency effects, may be radiated by a further loudspeaker which is positioned behind the two rear seats in the package shelf of the passenger's compartment.
  • the left and right surround channels may be radiated by loudspeakers which are arranged in the headrest of the four seats in the automobile passenger compartment.
  • the loudspeakers for a car audio system are normally positioned in the front and rear car doors, in the dashboard, in the A- or C-pillar or in the triangle for fixing the left and right wing mirror in the passenger's compartment. It can be a problem of known audio car sound systems to emit a center channel audio signal in the rear seating of a vehicle in a high perceptual audio quality.
  • a center-rear-speaker in a console between two front-seats, as described in the aforementioned patent may just result in a moderate perceptual audio quality of the center channel audio signal in the rear seating region of the automobile. Therefore, it is an object of the present invention to increase the audio quality of an audio signal emitted in the rear seating region of a vehicle.
  • a vehicle may comprise a vehicle interior which has a location for at least one front seat, a rear seat region for at least one rear seat and a vehicle interior ceiling and at least one center-rear-speaker, also named center-rear - loudspeaker or center-rear-transducer, arranged at a center-rear-speaker region in the ceiling above the rear seating region and wherein the center-rear-speaker is configured to emit an audio signal into the vehicle interior.
  • center-rear-speaker also named center-rear - loudspeaker or center-rear-transducer
  • the vehicle may comprise a vehicle audio sound system which is capable to emit a plurality of audio channel signals and which comprises at least a center-front-speaker, a left-front- speaker and a right-front-speaker, wherein the center-front-speaker and the at least one center-rear-speaker is configured to emit an audio signal comprising a center channel audio signal.
  • the vehicle audio sound system may be a multiple-channel sound system.
  • a vehicle comprises a vehicle audio sound system having a plurality of audio channels and at least a center-front-speaker, a left- front-speaker, a right- front-speaker and a first and a second center-rear-speaker, wherein the first center-rear- speaker is arranged above a left rear seat and the second rear speaker is arranged above a right rear seat in the vehicle interior seating.
  • the audio signal emitted by the first and second center-rear-speaker may comprise a center channel audio signal, so that the center channel audio signal is stabilized for passengers sitting in a rear sitting region of the vehicle on a left or a right rear seat.
  • the perceptual audio quality may be increased by the center-rear-speakers which are arranged in the vehicle interior ceiling.
  • a vehicle may comprise a sound processor which is configured to delay a run time for an audio signal to be emitted by the center-rear speaker or an exciter at the vehicle ceiling with respect to a run time for an audio signal to be emitted by other loudspeakers in the vehicle, so that a passenger can localize the sound at a desired phantom source position within the vehicle.
  • the at least one center-rear-speaker is arranged in the vehicle ceiling above a knee-position region for a passenger sitting on a rear seat of the vehicle.
  • At least one exciter is located at the vehicle ceiling at a center-rear-speaker region, wherein the exciter is configured to excite a vehicle roof or ceiling so that an audio signal is emitted into the vehicle interior.
  • Fig. 1 shows a schematic top view of a vehicle interior comprising at least one center-rear-speaker arranged in the vehicle ceiling according to embodiments of the invention.
  • Fig. 2 shows a schematic side view of a vehicle and a vehicle interior comprising front and rear seats and a center-rear-speaker arranged in the ceiling of the vehicle according to embodiments of the invention.
  • Fig. 3 shows a schematic top view of a vehicle interior having a vehicle audio sound system comprising a plurality of loudspeakers or an exciter according to embodiments of the invention.
  • Fig. 4a shows in a schematic top view the dimensions of a center-rear-speaker according to some embodiments of the invention.
  • Fig. 4b shows in a schematic side view the dimensions of a center-rear-speaker according to some embodiments of the invention.
  • Embodiments of the invention provide a vehicle which comprises a vehicle interior having a location for at least one front seat, a rear seating region for at least one rear seat, a vehicle interior ceiling and at least one center-rear-speaker region arranged in the ceiling above the rear seating region and wherein the center-rear-speaker region comprises at least one center-rear-speaker or an exciter that is configured to emit an audio signal into the vehicle interior.
  • the vehicle may be, for example, a motor or electro vehicle or automobile, for example, a car, a bus, a sport utility vehicle (SUV), a truck etc.
  • SUV sport utility vehicle
  • the ceiling can be, for example, a normal vehicle ceiling, a hard top or a folding top with the corresponding electric connections to the at least one center-rear speaker arranged in the ceiling.
  • the expression vehicle may also include a vehicle which is used in the air, e.g. an aircraft, or which is used on the water, e.g. a ship, or other ground or underground transportation vessels like a train or a subway.
  • the vehicle may comprise an audio sound system which is configured to emit audio signals, for example, music or speech.
  • an audio sound system may be used for entertainment reasons or for giving information to passengers sitting in the vehicle.
  • the audio sound system may be used as a hands-free speaking system for a (car-) navigation system, a warning system or for a cellular phone.
  • the vehicle audio sound system which may comprise the inventive center-rear-speaker or the exciter arranged in the ceiling of the vehicle may be configured to emit audio signals, e.g. music, speech, from different audio sources.
  • Such an audio source may be, for example, a CD, a DVD, a Blu-ray disc, a radio tuner, a TV-tuner, a computer, a laptop, a cellular phone, a navigation system or a storage for audio or video data, like a MP3 -player, flash drive, hard disc and so on.
  • Fig. 1 the schematic top view of a vehicle 100 with a vehicle interior 102 according to an embodiment of the invention is depicted.
  • the vehicle 100 comprises a vehicle interior 102, wherein the vehicle interior has a location for at least one front seat 104, a rear seating region 110 for at least one rear seat 112 and a vehicle interior ceiling 114.
  • the rear seating region 110 may include the space between the backrest of the at least one front seat 104 and the backrest of the at least one rear seat 112. This means, the rear seating region 110 may comprise the at least one rear seat 112 and a knee-position region 118 for passenger sitting on a rear seat 112.
  • the vehicle interior 102 may further comprise at least one center- rear-speaker region 121 arranged in the ceiling 114 above the rear seating region 110 and wherein a center-rear-speaker 120 or exciter 122 which is configured to emit an audio signal into the vehicle interior 102 is arranged at the center-rear-speaker region.
  • the at least one center-rear-speaker 120 or exciter 122 may be arranged in the vehicle ceiling so that a center channel audio signal from a vehicle audio sound system is emitted into the vehicle interior.
  • the at least one center-rear-speaker 120 or exciter 122 may emit an audio signal predominantly into the rear seating region according to an embodiment.
  • the at least one center-rear-speaker or exciter which is arranged in the ceiling 114 of the vehicle may be configured to stabilize a localization of a center channel audio signal for passengers sitting, e. g. on a rear seat in a vehicle.
  • the inventive vehicle may be appropriate to transport passengers in the air, on the water or on the ground.
  • the vehicle may comprise a vehicle interior, i.e. an inner space where the passengers are located during a journey with the respective vehicle.
  • the center-rear speaker or exciter may be arranged in the roof interior of the vehicle ceiling.
  • Fig. 2 a schematic cross-sectional view of a vehicle, for example, a car is depicted.
  • the vehicle interior 102 may comprise at least one front seat 104 as well as a rear seat region 110 wherein at least one rear seat 112 is located in the rear seat region 110.
  • At least one center-rear-speaker 120 or exciter 122 is arranged in the ceiling 114 of the vehicle above the rear seating region 110.
  • the center-rear-speaker 120 or the exciter 122 may be configured to emit an audio signal into the vehicle interior 102.
  • the rear seating region 110 may comprise a knee-position region 118 for a passenger 123 sitting on a rear seat 112.
  • the knee-position region 118 may comprise the space between the backrest of the front seat 104 and the beginning of the seating area of the rear seat 112.
  • the at least one center- rear-speaker 120 may be arranged, as it is schematically shown by the arrow 118a, above a knee-position region 118.
  • the emitted audio signal may have a better audio quality or perceptual audio sound quality then, for example, a center- rear-speaker arranged in a console between two front seats.
  • the at least one center-rear-speaker 120 or exciter 122 may be configured to emit an audio signal comprising a center channel audio signal of a vehicle audio sound system installed in the vehicle.
  • the center-rear speaker or exciter may be configured to emit an audio signal which comprises a center channel audio signal.
  • a vehicle 100 may comprise, in addition to the features described in context to Figs. 1 and 2, a vehicle audio sound system 150 having a plurality of audio channels.
  • the vehicle audio sound system 150 may be configured to emit a plurality of independent audio channels.
  • Each of the plurality of audio channels may be independently stored on a respective storage medium, e.g. a CD, DVD, flash drive and so on and may be independently reproducible.
  • Each of the plurality of audio channels may be configured to reproduce all audible frequencies, for example, between 50 to 15000 Hz.
  • the vehicle audio sound system 150 may, for example, comprise at least a center-front-speaker 130, a left-front-speaker 134 and a right-front-speaker 132. In contrast to the at least one center-rear speaker 120a, 120b those speakers are not arranged in or at the vehicle ceiling.
  • the center-front-speaker 130 may be arranged, for example, in a car dashboard, the left- front-speaker 134 and the right-front-speaker 132 may be, for example, integrated in a corresponding left and right vehicle door.
  • the at least one center-rear speaker 120a, 120b is arranged at a center-rear speaker region 121 in the vehicle ceiling 114.
  • the center-front- speaker 130 and the at least one center-rear-speaker 120a, 120b at the center-rear -region 121 may be configured to emit an audio signal which complies a center channel audio signal.
  • the vehicle audio sound system may comprise tweeters, sub-woofers and mid- range loudspeakers.
  • a vehicle may comprise two center-rear- speaker 120a, 120b arranged in the ceiling 1 14 above the rear seating region 110.
  • the two center-rear speaker 120a, 120b may have a stabilizing effect on the center-channel audio signal perception for a passenger sitting on a back seat.
  • the center-front-speaker 130 and the left- and right-front-speaker 134, 132 which are arranged in an horizontal plane with respect to a passenger, emit a center channel audio signal a passenger on the back seat may have, together with the center channel audio signal emitted by the two center-rear speaker 120a, 120b from the vehicle ceiling, the impression, that the center channel audio signal is emitted by a single center-loudspeaker arranged in the middle of the vehicle compartment between the two front seats.
  • a virtual loudspeaker which is based on the sound perception of a passenger is sometimes named phantom sound source.
  • the vehicle audio sound system 150 can also comprise loudspeakers 141 which are arranged in or at the headrest of a vehicle seat.
  • the vehicle may further comprise a sound processor 127 which is configured to delay an audio sound signal, for example, the center channel audio signal for the different loudspeakers - e.g. the center-front-speaker 130, the left-front-speaker 134, the right-front- speaker 132 and the two center-rear speaker 120a, 120b or the exciters 122a, 122b - among the different loudspeakers, so that a time delay of an audio signal can be compensated and a passenger can localize a single phantom sound source at a predetermined position in the vehicle.
  • the predetermined position of the phantom sound source in the vehicle may depend on the different run times of the sound waves from the speaker, the position of the speaker and the delay of the audio signals.
  • the sound processor 127 is electrically coupled at least to the speaker, e.g. the center-rear speaker 120a, 120b or to the exciters 122a, 122b.
  • the sound processor may be configured to use the so called Haas effect, precedence effect or law of the first wave front effect for a passenger in the vehicle. According to the Haas effect a passenger localize sound sources in the direction of the first arriving sound wave in spite of the presence of a sound wave from a different direction.
  • the sound processor may be configured to compensate a run time difference of the different speakers and exciters, so that a desired phantom sound source for a passenger in the vehicle can be achieved.
  • the sound processor may be configured to delay, e.g. electronically an audio signal, e.g. the center channel audio signal for the center-rear speakers, but also for the rest of the speakers, so that a run time difference of the different sound signals emitted by the different loudspeakers can be compensated.
  • the sound processor is configured to delay a center channel audio signal for the center-rear speakers 120a, 120b or the exciters 122a, 122b at the vehicle ceiling with respect to at least a center front speaker 130.
  • the center front speaker 130 can be integrated or arranged at a dashboard of the vehicle.
  • the delay may be performed, so that a passenger in the vehicle can percept a phantom sound source for center channel audio signal at a predetermined position in the vehicle, for example, between two front seats above a middle console 129, e.g. at about a height of the headrests 133 of the front seats.
  • the vehicle audio sound system may be a multi-channel audio sound system encircling the passengers in a vehicle interior with surround channels, for example, a left surround channel, a right surround channel, a back surround channel as well as a center channel, a front left and a front right channel.
  • the vehicle audio sound system may therefore comprise at least, for example, a center- front-speaker 130, a left- front-speaker 134 and a right-front-speaker 132. In other embodiments the number of loudspeakers and channels may be different.
  • the vehicle audio sound system may comprise a back surround channel 142.
  • the vehicle audio sound system may be, for example, a stereophonic, a 5.1 or a 7.1 sound system.
  • a special arrangement of the loudspeakers, respectively transducers, for a vehicle audio sound system is disclosed.
  • the at least one center-rear- speaker may be mounted on the ceiling 1 14 of the vehicle.
  • the at least one center-rear- speaker may be mounted in the roof interior of the vehicle ceiling.
  • a center channel audio signal can be stabilized in the rear sitting region 1 10 of a vehicle for a passenger sitting on a rear seat.
  • the center-rear-speaker 120 may be directly mounted above a knee position region 118 in the vehicle ceiling 114.
  • a vehicle audio sound system may further comprise a left rear speaker 136 and a right rear speaker 138.
  • back rear speakers 142 may be included in the vehicle audio sound system.
  • the number and the arrangement of the loudspeakers or transducers of the vehicle audio sound system may vary in different embodiments.
  • the center-rear loudspeakers 120a, 120b may be arranged in the ceiling 1 14 above a rear seating region 1 10 in the different embodiments.
  • the location of the loudspeakers 130, 132, 134, 136, 138, and 142 may be different to the location schematically shown in Fig. 3.
  • the center-rear-speaker 120a can be arranged above the rear sitting region 1 10 of a left rear seat 1 12a and a further or second center-rear-speaker 120b can be arranged above the rear sitting region 1 10 of a right rear seat 112b.
  • a center channel audio signal can be stabilized for passengers sitting on the left and right rear seat.
  • the center-rear-speaker 120a is arranged above the rear sitting region 1 10 of a left rear seat 112a.
  • the center-rear-speaker 120b is arranged above a rear sitting region 110 of a right rear seat 112b.
  • the center-rear- speaker 120, 120a, 120b will be configured to emit an audio signal comprising the center channel audio signal.
  • the at least one center-rear-speaker 120, 120a, 120b may be configured to stabilize a center channel audio signal emitted by a center-front-speaker so that the emitted audio sound quality is higher than an audio sound quality for a person sitting in the rear seating region 110 without having a center-rear-speaker or which just comprises a center-rear-speaker arranged in the console between two front seats.
  • the vehicle may comprise at least one exciter 122 arranged at the least one center-rear-speaker region 121.
  • the at least one exciter may be configured to excite the roof or the ceiling 114 of a vehicle 100 upon an audio signal received from an vehicle audio system 150 or from a sound processor so that a sound wave is emitted into the vehicle interior.
  • an exciter 122 can be used to emit an audio signal into the vehicle interior.
  • the exciter 122 may be configured to excite the roof or the ceiling of a vehicle, for example, mechanically, magnetically, electrically or electro- magnetically.
  • no conventional loudspeaker with a membrane is needed at the center-rear-speaker- region 121 to stabilize a center-channel-audio signal as described herein.
  • the vehicle ceiling 114 itself or the vehicle roof may serve as a membrane or at least as a kind of membrane.
  • the exciter 122 may comprise means for exciting the roof or the ceiling 114 of the vehicle 100. Such means for exciting may be configured to excite the roof or ceiling, for example, mechanically, magnetically, electrically or electro-magnetically. Upon an excitation the roof or ceiling of the vehicle may vibrate so that an audio signal is emitted into the vehicle interior. The excitation may be controlled by a sound processor or vehicle audio sound system.
  • the exciter 122 may be part of a vehicle audio system 150, as described herein in context to the center-rear speaker 120.
  • the exciter may excite the roof or the ceiling in such a way that the roof or the ceiling starts to vibrate and thus, a certain sound wave is emitted into the vehicle interior.
  • two exciters 122a, 122b are arranged at the center-rear-speaker regions 121.
  • the exciters 122a, 122b may be used as described herein in context to the center rear-speakers 120, 120a, 120b. This means, among others they may be used to stabilize a center-channel audio signal in the back, a phantom sound source may be generated by means of the exciter and an audio signal delay for the exciters may be controlled by a sound processor.
  • Fig. 4a the schematic top view of a center-rear-speaker 120, 120a, 120b which is arranged in the ceiling 1 14 of the vehicle 100 is depicted.
  • the center-rear-speaker may be, for example, a simple and cheap loudspeaker.
  • the center-rear-speaker 120, 120, 120b may comprise a diameter D between 20 mm to 70 mm, or between 30 mm to 50 mm.
  • the center-rear-speaker 120, 120a, 120b may comprise a loudspeaker 140 and a typical loudspeaker membrane 145, which may be mechanically supported (not shown in Fig. 4a).
  • Fig. 4a the schematic top view of a center-rear-speaker 120, 120a, 120b which is arranged in the ceiling 1 14 of the vehicle 100 is depicted.
  • the center-rear-speaker may be, for example, a simple and cheap loudspeaker.
  • the center-rear-speaker 120 may comprise a loudspeaker 140 with a height HI lower or equal than 5 cm, 3 cm or 1 cm.
  • the overall height H2 of the center-rear-speaker 120, 120a, 120b may be lower or equal than 70 mm, 50 mm, 30 mm or 10mm.
  • the vehicle may comprise, for example, two center-rear-speakers with a minimum diameter of the loudspeaker of 50 mm.
  • the center rear loudspeaker may comprise a minimum sitting depth of 15 mm.
  • the center-rear-speaker may comprise a minimum housing volume of 0.1 liter.
  • the at least one center-rear-speaker may be a back center channel loudspeaker in a vehicle audio sound system.
  • the arrangement of the center-rear-speaker in the vehicle ceiling may cause an improved audio sound localization.
  • the audio signals emitted by the center-rear speaker 120 may form a diffuse audio sound cloud.
  • the vehicle audio sound system may be a single or monophonic, a stereophonic, a multichannel 5.1 system or a sound system which comprises even more independent audio sound channels.
  • a loudspeaker may be an electro-acoustic transducer that produces sound in response to an electrical audio signal input.
  • the vehicle audio sound system may comprise different individual drivers to reproduce different frequency ranges.
  • the transducers may comprise sub-woofers for very low frequencies (e.g. 15 - 100 Hz), woofers for low frequencies (e.g.
  • the center-rear-speaker may be an inexpensive, linch speaker, which can be typically found in small radios, etc.
  • a ceiling loudspeaker arrangement to stabilize a center channel signal on the rear seats of a car or vehicle is disclosed. Above the knees of passengers sitting in the rear in each case a loudspeaker (back center) may be arranged in the ceiling of the vehicle. These loudspeakers may stabilize the rearward center position for each listener on the rear seats.
  • This loudspeaker may be very small. It may comprise , for example, a 30 mm loudspeaker.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Stereophonic System (AREA)

Abstract

Des modes de réalisation de l'invention comprennent un véhicule (100) comportant un volume intérieur de véhicule (102) qui possède un emplacement pour au moins un siège avant (104), une région d'assise arrière (110) pour au moins un siège arrière (112), un plafond intérieur de véhicule (114) et au moins un haut-parleur (120) ou excitateur (122) centre-arrière disposé dans une région de haut-parleur centre-arrière (121) du plafond, au-dessus de la région d'assise arrière, le haut-parleur ou excitateur centre-arrière étant conçu pour émettre un signal audible dans le volume intérieur du véhicule.
PCT/EP2011/062989 2010-07-30 2011-07-28 Véhicule équipé d'un haut-parleur centre-arrière WO2012013743A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36927110P 2010-07-30 2010-07-30
US61/369,271 2010-07-30

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WO2012013743A1 true WO2012013743A1 (fr) 2012-02-02

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US9088842B2 (en) 2013-03-13 2015-07-21 Bose Corporation Grille for electroacoustic transducer
US9327628B2 (en) 2013-05-31 2016-05-03 Bose Corporation Automobile headrest
US9699537B2 (en) 2014-01-14 2017-07-04 Bose Corporation Vehicle headrest with speakers

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EP1596627A2 (fr) * 2004-05-04 2005-11-16 Bose Corporation Dispositif pour la reproduction d'information d'un canal central dans un système audio à canaux multiples pour véhicules
US7424127B1 (en) 2000-03-21 2008-09-09 Bose Corporation Headrest surround channel electroacoustical transducing

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US4703502A (en) * 1985-01-28 1987-10-27 Nissan Motor Company, Limited Stereo signal reproducing system
US5754664A (en) * 1993-09-09 1998-05-19 Prince Corporation Vehicle audio system
US7424127B1 (en) 2000-03-21 2008-09-09 Bose Corporation Headrest surround channel electroacoustical transducing
EP1596627A2 (fr) * 2004-05-04 2005-11-16 Bose Corporation Dispositif pour la reproduction d'information d'un canal central dans un système audio à canaux multiples pour véhicules

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9088842B2 (en) 2013-03-13 2015-07-21 Bose Corporation Grille for electroacoustic transducer
US9327628B2 (en) 2013-05-31 2016-05-03 Bose Corporation Automobile headrest
US9699537B2 (en) 2014-01-14 2017-07-04 Bose Corporation Vehicle headrest with speakers

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