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1. 发明公开

EP3360345A1 ACTIVE ROOM COMPENSATION IN LOUDSPEAKER SYSTEM 有权
公开(公告)号：EP3360345A1
公开(公告)日：2018-08-15
申请号：EP15820457.8
申请日：2015-12-16
申请人： Bang & Olufsen A/S
发明人： DYREBY, Jakob
IPC分类号： H04S7/00 , H04R3/04
摘要： A method for compensating for acoustic influence of a listening room on an acoustic output from an audio system including at least a left and a right loudspeaker, the method comprising determining a left frequency response and a right frequency response, designing a left compensation filter FL, and a right compensation filter FR, and during playback applying the left and right filters to left and right channel inputs. According to the invention, a target response in the listening position is simulated, and the left and right compensation filters are designed to filter transfer functions based on the simulated target function multiplied by an inverse of the left/right frequency responses. By relying on a simulated target instead of relying on an empirical approach, the general impact of a room can be more accurately captured by the target functions.

2. 发明公开

EP2572516A1 CIRCULAR LOUDSPEAKER ARRAY WITH CONTROLLABLE DIRECTIVITY 审中-公开
标题翻译：应税取向圆形的扬声器布置
公开(公告)号：EP2572516A1
公开(公告)日：2013-03-27
申请号：EP11718123.0
申请日：2011-05-10
申请人： BANG & OLUFSEN A/S
发明人： MUNCH, Gert, Kudahl , DYREBY, Jakob , OLSEN, Martin , MØLLER, Martin, Bo
IPC分类号： H04R1/40 , H04R3/12 , G10K11/34
CPC分类号： H04R1/403 , G10K11/32 , G10K11/346 , H04R3/12 , H04R2201/401
摘要： The invention relates to a sound- emitting device with controllable directivity comprising a plurality of sound sources (7) distributed over the surface of a body 5, each of said sound sources (7) being driven by a separate power amplifier (12), the input terminal of which is provided with the output signal from a corresponding filter (10), such that the frequency response of each individual sound source (7) can be controlled, where each filter (10) is provided with an input signal (11) corresponding to a plurality of input channels Ch
1 , Ch
2 ... Ch
N . The body (5) could according to one embodiment of the invention comprise a cylindrical body provided with end pieces (6) at either longitudinal end. The present invention furthermore relates to a method for controlling the individual sound sources of the sound-emitting device in order to obtain a given target directivity.

3. 发明公开

EP4075824A1 LOUDSPEAKER 有权
公开(公告)号：EP4075824A1
公开(公告)日：2022-10-19
申请号：EP21191514.5
申请日：2021-08-16
申请人： BANG & OLUFSEN A/S
发明人： DYREBY, Jakob , RAHBEK, Jens
IPC分类号： H04R1/26
摘要： The present invention describes a loudspeaker comprising a housing and a plurality of sound transducers arranged inside said housing, where the housing has two sides arranged on either side of a x-y plane with a mutual distance between said sides measured along a z-axis orthogonal to the x-y plane, and a front facing side and a rear facing side, and a top and a bottom, wherein
a. A first sound transducer is arranged inside a first cavity inside said loudspeaker housing, where said first cavity has a narrow first slit in the y-direction provided in the rear facing side, where said first slit has a width z1 in the z-direction, and a length y1 in the y-direction where the length y1 in the y-direction is larger than the width z1 in the z-direction;
b. A second sound transducer is arranged inside a second cavity inside said loudspeaker housing, separate from said first cavity, and where said second cavity is provided with a narrow second slit in the y-direction provided in the front facing side, where said second slit has a width z2 in the z-direction, and a length y2 in the y-direction, where the length y2 in the y-direction is larger than the width z2 in the z-direction.

4. 发明公开

EP3360344A1 ACTIVE ROOM COMPENSATION IN LOUDSPEAKER SYSTEM 有权
公开(公告)号：EP3360344A1
公开(公告)日：2018-08-15
申请号：EP15813806.5
申请日：2015-12-16
申请人： Bang & Olufsen A/S
发明人： DYREBY, Jakob
IPC分类号： H04S7/00 , H04R3/04
摘要： A method for compensating for acoustic influence of a listening room on an acoustic output from an audio system including at least a left and a right loudspeaker, the method comprising determining a left frequency response and a right frequency response, designing a left compensation filter FL, and a right compensation filter FR, and during playback applying the left and right filters to left and right channel inputs. According to the invention, a target response in the listening position is simulated, and the left and right compensation filters are designed to filter transfer functions based on the simulated target function multiplied by an inverse of the left/right frequency responses. By relying on a simulated target instead of relying on an empirical approach, the general impact of a room can be more accurately captured by the target functions.

5. 发明公开

EP4138299A1 A METHOD FOR INCREASING PERCEIVED LOUDNESS OF AN AUDIO DATA SIGNAL 审中-实审
公开(公告)号：EP4138299A1
公开(公告)日：2023-02-22
申请号：EP22190244.8
申请日：2022-08-12
申请人： BANG & OLUFSEN A/S
发明人： JEANNEROT, Alix , de KOEIJER, Niels , MARTÍNEZ-NUEVO, Pablo , MØLLER, Martin Bo , DYREBY, Jakob
IPC分类号： H03G7/00 , H03G9/02 , H04R3/00 , H03F1/52
摘要： Disclosed is a method for increasing a perceived loudness of an audio data signal comprising the steps of obtaining a first digital audio data signal; determining at least one temporal amplitude peak in the first digital audio data signal; generating a second digital audio data signal by reducing the at least one temporal amplitude peak in the first digital audio data signal based on a predicted perceptual difference model representing a predicted perceptual difference between the first digital audio data signal and a peak reduced version of the first digital audio data signal; and generating a third digital audio data signal by amplifying the second digital audio data signal so that a peak of the second digital audio data signal has a predetermined signal value, wherein a perceived loudness of the third digital audio data signal is larger than a perceived loudness of the first digital audio data signal. Further disclosed is a digital signal processing device, a loudspeaker device, a computer program product, and a digital audio data signal.

6. 发明授权

EP3360345B1 ACTIVE ROOM COMPENSATION IN LOUDSPEAKER SYSTEM 有权
公开(公告)号：EP3360345B1
公开(公告)日：2020-07-08
申请号：EP15820457.8
申请日：2015-12-16
申请人： Bang & Olufsen A/S
发明人： DYREBY, Jakob
IPC分类号： H04S7/00 , H04R3/04

7. 发明授权

EP3360344B1 ACTIVE ROOM COMPENSATION IN LOUDSPEAKER SYSTEM 有权
公开(公告)号：EP3360344B1
公开(公告)日：2020-06-03
申请号：EP15813806.5
申请日：2015-12-16
申请人： Bang & Olufsen A/S
发明人： DYREBY, Jakob
IPC分类号： H04S7/00 , H04R3/04

8. 发明公开

EP4329327A1 LOUDSPEAKER TRANSDUCER ARRANGEMENT 审中-实审
公开(公告)号：EP4329327A1
公开(公告)日：2024-02-28
申请号：EP22192283.4
申请日：2022-08-26
申请人： BANG & OLUFSEN A/S
发明人： DYREBY, Jakob
IPC分类号： H04R1/32 , H04R1/40
摘要： The present invention provides a loudspeaker transducer arrangement comprising at least three loudspeaker transducer units emitting sound in different directions, where said loudspeaker transducer units are arranged in separate walls, where said walls are arranged in separate planes, wherein first, second and third planes are arranged relative to a three-dimensional cartesian coordinate system comprising x,y and z-axes, such that
- a first wall arranged in said first plane is defined by a normal L1 perpendicular to said first plane and which normal L1 is parallel with the x-axis and the first loudspeaker transducer unit mainly emits sound along the normal L1 where
- a second wall arranged in said second plane is defined by a normal L2 perpendicular to said second plane and which normal L2 results from rotating an axis parallel with the y-axis by an angle θ between 0 and 40 degrees around the z-axis (in the x-y plane) in the direction of the positive x-axis, and the second loudspeaker transducer unit emits sound mainly along the normal L2, and where
- a third wall arranged in said third plane is defined by a normal L3 perpendicular to said third plane and which normal L3 results from rotating an axis parallel with the z-axis by an angle ϕ between 0 and 20 degrees around the y-axis (in the x-z plane) in the direction of the positive x-axis and subsequently rotating said axis by an angle ρ between -20 and 20 degrees around the x-axis in the direction of the negative y-axis, and the third loudspeaker transducer unit emits sound mainly along the normal L3.
The invention is also directed to a soundbar where the loudspeaker transducer arrangement discussed above is integrated in both sides of the soundbar. Therefore, the invention is also directed to a soundbar for emitting a three dimensional sound image to a listener in a room.

9. 发明公开

EP3469578A1 ADJUSTABLE ACOUSTIC LENS AND LOUDSPEAKER ASSEMBLY 有权转让
公开(公告)号：EP3469578A1
公开(公告)日：2019-04-17
申请号：EP17728768.7
申请日：2017-05-23
申请人： Bang & Olufsen A/S
发明人： DYREBY, Jakob , OLSEN, Martin
IPC分类号： G10K11/30 , H04R1/34 , G10K11/35

10. 发明公开

EP3103267A1 LOUDSPEAKER TRANSDUCER ARRANGEMENT FOR DIRECTIVITY CONTROL 审中-公开
标题翻译：音箱变压器布置，对于控制拾音模式
公开(公告)号：EP3103267A1
公开(公告)日：2016-12-14
申请号：EP15704452.0
申请日：2015-02-06
申请人： Bang & Olufsen A/S
发明人： MUNCH, Gert Kudahl , DYREBY, Jakob
IPC分类号： H04R1/40 , H04R3/12
CPC分类号： H04R3/14 , G06F3/165 , H04R1/26 , H04R1/288 , H04R1/403 , H04R3/12 , H04R2203/12 , H04R2430/01 , H04S7/303
摘要： The invention relates to a loudspeaker system as well as a loudspeaker with controllable directivity as well as a method for controlling the individual sound transducer units in order to obtain a given target directivity. The loudspeaker comprises a plurality of sound transducer units distributed over two or more surfaces of a body. Each of the sound transducer units are utilized for frequency dependent a) level/gain adjustment and b) delay/phase adjustment of each individual sound transducer unit. The sound emitting transducer units are organized in two or more transducer arrays where the physical placement of transducer units included in the at least two or more transducer unit arrays are symmetrical organized and mirrored around a common axis.

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