WO2002098171A1 - Vehicle-mounted stereophonic sound field reproducer/silencer - Google Patents
Vehicle-mounted stereophonic sound field reproducer/silencer Download PDFInfo
- Publication number
- WO2002098171A1 WO2002098171A1 PCT/JP2001/004463 JP0104463W WO02098171A1 WO 2002098171 A1 WO2002098171 A1 WO 2002098171A1 JP 0104463 W JP0104463 W JP 0104463W WO 02098171 A1 WO02098171 A1 WO 02098171A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sound field
- dimensional
- listener
- signal
- sound
- Prior art date
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Classifications
-
- 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
- H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/62—Accessories for chairs
- A47C7/72—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/62—Accessories for chairs
- A47C7/72—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
- A47C7/727—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like with speakers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/879—Head-rests with additional features not related to head-rest positioning, e.g. heating or cooling devices or loudspeakers
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
-
- 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
- H04R5/02—Spatial or constructional arrangements of 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
- H04R5/02—Spatial or constructional arrangements of loudspeakers
- H04R5/023—Spatial or constructional arrangements of loudspeakers in a chair, pillow
-
- 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
-
- 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
- B60R2011/0012—Seats or parts thereof
- B60R2011/0017—Head-rests
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/12—Rooms, e.g. ANC inside a room, office, concert hall or automobile cabin
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/128—Vehicles
- G10K2210/1282—Automobiles
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/321—Physical
- G10K2210/3221—Headrests, seats or the like, for personal ANC systems
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/321—Physical
- G10K2210/3225—Radio or other sources used in ANC for transfer function estimation; Means to avoid interference between desired signals, e.g. from a car stereo, and the ANC signal
-
- 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
Definitions
- a speaker is arranged at a position close to the head of a listener in a vehicle cabin, and a sound field near an outer ear of the listener is controlled, so that the listener can perceive a three-dimensional sound field with a sense of presence.
- the present invention relates to an in-vehicle three-dimensional sound field reproduction / mute device that can mute sound for each listener.
- the present invention has been made to solve the above-mentioned problems.
- a desired three-dimensional sound field for each listener can be selected and reproduced with high accuracy near the outer ear.
- the sound around the outer ear can be silenced for each listener
- the objective is to provide a three-dimensional sound field reproduction and silencer for in-vehicle use. Disclosure of the invention
- the in-vehicle stereophonic sound field reproducing apparatus is provided with at least two or more stereoscopic sound field reproducing spaces arranged in a region including the left and right outer ears of the listener for each seat to be seated by the listener.
- the output signal from the sound source It is provided with a three-dimensional signal processing means for converting the signal into a three-dimensional sound field signal and supplying it to the speaker.
- the in-vehicle three-dimensional sound field reproduction device is characterized in that the sound source from the sound source is closed by closing both the sitting switch which is closed by the listener sitting down and the operation switch which is closed by the listener to select the sound source.
- the output signal is supplied to the three-dimensional signal processing means.
- the sound source can be reproduced for each seat.
- the in-vehicle three-dimensional sound field reproducing apparatus includes a sound source selecting means for selecting a desired sound source from a plurality of different sound sources on the input side of the three-dimensional signal processing means.
- the speaker of the in-vehicle three-dimensional sound field reproduction device according to the present invention is provided in a headless.
- the position of the listener's outer ear and the speaker can be brought closer, and an ideal three-dimensional sound field can be realized.
- the speaker of the vehicle-mounted stereophonic sound field reproducing apparatus is provided on the ceiling surface so as to surround the head of the seated listener, corresponding to the left and right outer ears of the listener.
- the listener's outer ear can be positioned closer to the speaker, and an ideal three-dimensional sound field can be realized, and the degree of freedom in speaker placement can be obtained.
- the in-vehicle three-dimensional sound field muffler forms a three-dimensional sound field reproduction space in an area including the left and right outer ears of the listener for each seat to be seated by the listener.
- At least two or more loudspeakers arranged in such a manner, a three-dimensional signal processing means for converting an output signal from a sound source into a three-dimensional sound field signal and supplying it to that of the speaker, and a volume of the three-dimensional sound field reproduction space
- an anti-phase signal generating means for supplying a mute signal for canceling the three-dimensional sound field signal to the three-dimensional signal processing means based on the detected sound volume from the sound volume detecting means. is there.
- FIG. 1 is a schematic view of a car equipped with a conventional sound field reproducing device.
- Fig. 2 is a schematic diagram showing the arrangement of speakers that reproduce a three-dimensional sound field.
- Fig. 3 is a block diagram of a reproduction circuit that supplies a reproduction signal to a speaker using an output signal from a sound source as a three-dimensional sound field signal. .
- FIG. 4 is a block diagram showing a state in which a speaker forming a three-dimensional sound field reproduction space is attached to a headrest in a region including the left and right outer ears of the listener for each seat to be seated by the listener.
- Fig. 5 is an enlarged view of the headless part.
- FIG. 6 is a front view thereof.
- FIG. 7 is a plan view showing a three-dimensional sound field reproduction space formed for each seat.
- FIG. 8 shows a speaker that forms a three-dimensional sound field reproduction space in a region including the left and right outer ears of the listener for each seat to be seated by the listener, and the speaker is mounted on the ceiling so as to surround the head of the listener.
- FIG. 3 is a plan view showing a state provided corresponding to the left and right outer ears.
- FIG. 9 is a front view thereof.
- FIG. 10 is a perspective view in which a partition plate is arranged between left and right speakers.
- FIG. 11 is a block diagram showing the configuration of the three-dimensional sound field muffler of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 2 is a schematic diagram showing a speaker arrangement in the three-dimensional sound field reproduction / silencer, and three speakers 3 L 1, 3 L 2, 3 near the two ears 2 L, 2 R of the listener 1.
- L3, 31, 3R2, 3R3 are arranged to control the sound field 0 near the outer ear.
- FIG. 3 shows a reproduction circuit for supplying a reproduction signal to the above speakers 3 L 1, 3 L 2, 3 L 3 3 R 1, 3 R 2, 3 R 3.
- Reference numeral 5 denotes sound source selection means for switching the output of the sound source 16
- reference numeral 17 denotes a three-dimensional signal processing means
- reference numeral 18 denotes a 6-channel (channel) amplifier for outputting a reproduction signal with six speeds.
- Sound source 16 is 2ch CD, 5.lch DVD, AM, FM sound source,
- the three-dimensional signal processing means 17 comprises a digital input section, analog input section, A / D conversion section, digital signal processing section, DZA conversion section, etc. (not shown), and converts the output signal from the sound source selection means 15 into a three-dimensional sound field signal. It performs signal processing for conversion.
- the illustrated example shows a case where three speakers 3 L 1, 3 L 2, 3 L 3, 3 R 1, 3 R 2, and 3 R 3 are arranged on the left and right outer ears, respectively. I will explain why.
- the control points points in the space that reproduces the state of the target sound wave
- the control points are three points near the outer ear.
- the shorter the time length of this transfer function the smaller the size of the hardware that performs signal processing, so the speaker arrangement should be selected so that the time length can be as short as possible. It can be said that the shorter the distance between the loudspeaker and the control point is, the shorter the time length of the transfer function is in a general room or cabin.
- the reason for this is that the farther away from the control point the speed is, the greater the proportion of the reflected sound reaching the control point from all directions in the room or cabin compared to the direct sound coming directly from the speaker to the control point. It is. Conversely, when the distance between the loudspeaker and the control point is short, the ratio of the direct sound that reaches the control point directly from the speed becomes larger than the reflected sound in the room. Most of the amplitude of the transfer function is occupied by direct sound, and the amplitude component of reflected sound is much smaller than that of direct sound. Therefore, the time length of the transfer function can be regarded as the time when the sound directly converges.
- the listener's head enters between the speakers arranged on the left and right, it is possible to bring the power closer to the outer ear and reduce the rate of crosstalk between both ears.
- the closer the right speaker is to the right ear the greater the ratio of the sound that enters the right ear directly from the right speed and the sound that leaks to the left ear on the opposite side, and consequently reduces crosstalk.
- the signal processing of the left and right sound fields can be independently performed when controlling the sound field 0 near the outer ear. The greatest advantage is that the operation scale is reduced by half.
- the signal processing performed by this three-dimensional sound field reproduction device is proportional to the product of the number of speed forces and the number of control points.
- the number of speakers is N on the left and right and the control points are N on the left and right. If the left and right signal processing can be performed independently with little crosstalk, the computation amount is N X N per ear and 2 X (N X N) for the left and right. On the other hand, if the crosstalk is large, it is necessary to process the left and right parts together, so that 2 N x 2 N, that is, 4 x (N X N). If there is no crosstalk, the amount of calculation will be 1/2. .
- the three-dimensional sound field reproducing apparatus for vehicle does not need to have three left and right speakers. Since the number of control points increases according to the number of speakers, theoretically, the more the number of beakers, the more accurately the original sound field can be simulated. However, since the amount of signal processing is proportional to the square of the number of loudspeakers, a large number of loudspeakers is not practical considering the number of channels and the processing capacity of general audio equipment.
- the method of arranging the left and right one at a time has no difference from the conventional headphone method, so there is at least two per ear.
- the sound field can be reproduced only on the line connecting the two control points, and the accuracy is insufficient.
- the sound field can be reproduced within a triangular area connecting the three control points.
- the sound pressure at the control point it is possible to reproduce up to the traveling direction of the sound wave in the region.
- Reproducing the traveling direction of sound waves is extremely important for perceiving a three-dimensional (3D) sound field It is. Considering the direction of sound wave propagation, accurate sound field reproduction can be obtained, and the number of speed forces that will not be large-scale practically is six on the left and right, for a total of six.
- FIG. 4 is a schematic diagram in which the in-vehicle stereophonic sound field reproducing apparatus of the present invention based on the above principle is arranged at the headrest 20 of each seat in the vehicle cabin.
- a seating switch arranged under the seats 12, 13 is an operating switch that is provided for each seat, and the listener himself operates 0 NZOFF, and 14 is an operating switch operated as the seating switch 11.
- An AND circuit for obtaining the logical product of switches 13, 15 is a sound source selection means for selecting a sound source 16 for AM broadcast, FM broadcast, CD, MD, DVD, etc. 17 is a signal corresponding to the sound source 16
- the three-dimensional signal processing means outputs the analog signals (example of 6 channels in Fig. 4) as many as the number of speakers, and 18 is a 6-channel amplifier which amplifies the output of the three-dimensional signal processing means 17 .
- FIG. 5 shows the side with the pressure 3 L 1, 3 L 2, 3 L 3, 3 R 1, 3 R 2, and 3 R 3 on the dress 20.
- FIG. 6 and FIG. 6 are front views thereof.
- the signal output from the sound source 16 is selected by the sound source selection means 15 and subjected to signal processing by the three-dimensional signal processing means 1 ⁇ into a three-dimensional signal corresponding to the sound source 16.
- the signal output from the three-dimensional signal processing means 17 is amplified by a 6-channel amplifier 18 to a level necessary for listening, and the six speakers 3 L 1 and 3 L 2 incorporated in the head address 20 are used. , 3 L 3, 3 R 1, 3 R 2, and 3 R 3.
- the speakers 3 L 1, 3 L 2, 3 L 3, 3 R 1, 3 R 2, 33 are respectively arranged on the left and right sides of the head of the listener 1, and the speakers 3 L 1, 3 L 2, 3 L 3 is the sound field near the left ear of listener 1
- the peak forces 3R1, 3R2, 3R3 create a sound field near the right ear.
- the seating switch 11 turns to 0 N, and in this state, when the listener 1 turns on the operation switch 13 for selecting a sound source, the AND circuit 14 forms a logical product to generate the sound source.
- the selection means 15 is activated.
- the sound source 16 selected by the sound source selection means 15 is converted into an analog signal corresponding to the number of beakers by the three-dimensional signal processing means 17, and its size is adjusted by the 6-channel amplifier 18. It is supplied to each speaker. As a result, the sound emitted from each speaker forms a three-dimensional sound field reproduction space 21 near the outer ear of the listener 1.
- the reproduction space 21 of this three-dimensional sound field is formed only around the head of the listener 1 seated in each seat, so that the three-dimensional sound field of the listener 1 in another seat It has no effect on the playback device. Therefore, each listener sitting on each seat can listen to desired reproduction sound such as AM broadcast, FM broadcast, CD reproduction sound, DVD reproduction sound without being affected by other reproduction sounds.
- Embodiment 1 a sound source desired by a listener can be selected for each seat, and a three-dimensional sound field with a sense of presence can be reproduced.
- the speakers 3 L 1, 3 L 2, 3 L 3, 3 R 1, 3 R 2, and 3 R 3 forming the stereophonic sound field reproduction space 21 are provided in the headless dress 20.
- the position of the outer ear of the listener 1 and the speakers 3 L 1, 3 L 2, 3 L 3, 3 R 1, 3 R 2, and 3 R 3 can be brought closer, and an ideal three-dimensional sound field can be realized.
- the speakers 3L1, 3L2, 3L3, 3R1, 32, and 3R3 are attached to the headrest 20.
- the speakers 3 L 1, 3 L 2, 3 L 3, 3 R 1, 3 R 2, 3 R 3 are arranged on the ceiling surface 2 2 of the car so as to surround the head of the listener 1.
- FIG. 8 is a plan view and FIG. 9 is a front view thereof.
- the speakers 3 L 1, 3 L 2, 3 L 3, 3 R 1, 3 R 1, 3 L 3, 3 L 3, 3 R 1, 3 R 1, 3 By arranging R 2 and 3 R 3, the distance between the speaker and the listener's head is short, and more freedom can be obtained in the position where the speed is set as compared with the headless 20.
- Embodiment 3 the distance between the speaker and the listener's head is short, and more freedom can be obtained in the position where the speed is set as compared with the headless 20.
- the speakers 3 L 1, 3 L 2 3 3 L 3, 3 R 1, 3 R 2, and 3 R 3 are arranged on the ceiling surface 11 of the car.
- the crosstalk level of 2, 3L3, 3R1, 3R2, and 3R3 may increase.
- a partition plate 30 is provided between 3L3, 3R1, 3R2, and 3R3.
- the partition plate 30 can reduce crosstalk between the left and right speeds. Embodiment 4.
- FIG. 11 is a block diagram showing the configuration of the vehicle-mounted three-dimensional sound field silencer of the present invention, and 26 is the volume of a microphone or the like provided to detect the volume of the region including the left and right outer ears of the listener 1.
- a detection unit, 27 is a switch, 28 is an anti-phase signal generation unit (ANC: active noise canceller), and the other configuration is the same as that of the first embodiment shown in FIG. Is the same Portions are given the same reference numerals, and redundant description is omitted.
- ANC anti-phase signal generation unit
- a detection signal based on the input signal is input to the anti-phase signal generator 28, converted into an anti-phase signal, and output.
- This anti-phase signal cancels out vehicle noise (road noise, engine sound, etc.) detected by the volume detector 26 in the three-dimensional signal processing means 17 and reduces or reduces the vehicle noise sound pressure near the listener to zero. And make it smaller.
- the silence operation can be selectively performed in all seats without adversely affecting the other listeners 1.
- the in-vehicle three-dimensional sound field reproducing / muffling device reproduces a three-dimensional sound field with a sense of realism for each seat, and mutes each seat without affecting the others. Are suitable.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Fluid Mechanics (AREA)
- Multimedia (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Stereophonic System (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/312,853 US7440578B2 (en) | 2001-05-28 | 2001-05-28 | Vehicle-mounted three dimensional sound field reproducing silencing unit |
EP01934375A EP1397021B1 (en) | 2001-05-28 | 2001-05-28 | Vehicle-mounted three dimensional sound field reproducing/silencing unit |
PCT/JP2001/004463 WO2002098171A1 (en) | 2001-05-28 | 2001-05-28 | Vehicle-mounted stereophonic sound field reproducer/silencer |
JP2003501231A JP4189918B2 (ja) | 2001-05-28 | 2001-05-28 | 車載用立体音場再生・消音装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2001/004463 WO2002098171A1 (en) | 2001-05-28 | 2001-05-28 | Vehicle-mounted stereophonic sound field reproducer/silencer |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002098171A1 true WO2002098171A1 (en) | 2002-12-05 |
Family
ID=11737361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/004463 WO2002098171A1 (en) | 2001-05-28 | 2001-05-28 | Vehicle-mounted stereophonic sound field reproducer/silencer |
Country Status (4)
Country | Link |
---|---|
US (1) | US7440578B2 (ja) |
EP (1) | EP1397021B1 (ja) |
JP (1) | JP4189918B2 (ja) |
WO (1) | WO2002098171A1 (ja) |
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US9049534B2 (en) | 2007-05-04 | 2015-06-02 | Bose Corporation | Directionally radiating sound in a vehicle |
US9100749B2 (en) | 2007-05-04 | 2015-08-04 | Bose Corporation | System and method for directionally radiating sound |
US9560448B2 (en) | 2007-05-04 | 2017-01-31 | Bose Corporation | System and method for directionally radiating sound |
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US7466832B2 (en) * | 2002-07-31 | 2008-12-16 | Harman International Industries, Incorporated | Seatback audio controller |
US8139797B2 (en) * | 2002-12-03 | 2012-03-20 | Bose Corporation | Directional electroacoustical transducing |
GB0315342D0 (en) * | 2003-07-01 | 2003-08-06 | Univ Southampton | Sound reproduction systems for use by adjacent users |
US20050032500A1 (en) * | 2003-08-08 | 2005-02-10 | Visteon Global Technologies, Inc. | Wireless/IR headphones with integrated rear seat audio control for automotive entertainment system |
JP4154602B2 (ja) * | 2003-11-27 | 2008-09-24 | ソニー株式会社 | 車両用オーディオ装置 |
WO2006109389A1 (ja) * | 2005-03-30 | 2006-10-19 | Pioneer Corporation | スピーカ内蔵シートおよびパーソナル音場システム |
JP4935091B2 (ja) * | 2005-05-13 | 2012-05-23 | ソニー株式会社 | 音響再生方法および音響再生システム |
US8126159B2 (en) * | 2005-05-17 | 2012-02-28 | Continental Automotive Gmbh | System and method for creating personalized sound zones |
DE102005030867A1 (de) * | 2005-07-01 | 2007-01-11 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Audioanlage in einem Kraftfahrzeug und Audioanlage |
US7688992B2 (en) * | 2005-09-12 | 2010-03-30 | Richard Aylward | Seat electroacoustical transducing |
JP4359779B2 (ja) * | 2006-01-23 | 2009-11-04 | ソニー株式会社 | 音響再生装置および音響再生方法 |
JP4946305B2 (ja) * | 2006-09-22 | 2012-06-06 | ソニー株式会社 | 音響再生システム、音響再生装置および音響再生方法 |
JP4841495B2 (ja) * | 2007-04-16 | 2011-12-21 | ソニー株式会社 | 音響再生システムおよびスピーカ装置 |
US20080273724A1 (en) * | 2007-05-04 | 2008-11-06 | Klaus Hartung | System and method for directionally radiating sound |
US8483413B2 (en) * | 2007-05-04 | 2013-07-09 | Bose Corporation | System and method for directionally radiating sound |
US20080273722A1 (en) * | 2007-05-04 | 2008-11-06 | Aylward J Richard | Directionally radiating sound in a vehicle |
US8724827B2 (en) * | 2007-05-04 | 2014-05-13 | Bose Corporation | System and method for directionally radiating sound |
US8135140B2 (en) | 2008-11-20 | 2012-03-13 | Harman International Industries, Incorporated | System for active noise control with audio signal compensation |
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Also Published As
Publication number | Publication date |
---|---|
EP1397021B1 (en) | 2013-01-09 |
EP1397021A1 (en) | 2004-03-10 |
JP4189918B2 (ja) | 2008-12-03 |
US7440578B2 (en) | 2008-10-21 |
EP1397021A4 (en) | 2008-10-15 |
US20030103636A1 (en) | 2003-06-05 |
JPWO2002098171A1 (ja) | 2004-09-16 |
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