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2. 发明申请

US20220329932A1 Loudspeaker 有权
公开(公告)号：US20220329932A1
公开(公告)日：2022-10-13
申请号：US17713351
申请日：2022-04-05
申请人： Bang & Olufsen A/S
发明人： Jakob Dyreby , Jens Rahbek
IPC分类号： H04R1/26 , H04R1/28 , H04R1/02 , H04R1/34
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.

3. 发明申请

US20220138571A1 Partial Inference Framework For Sequential DNN Processing On Constrained Devices, And Acoustic Scene Classification Using Said Partial Inference Framework 有权
公开(公告)号：US20220138571A1
公开(公告)日：2022-05-05
申请号：US17514107
申请日：2021-10-29
申请人： BANG & OLUFSEN A/S
发明人： Sven Ewan SHEPSTONE , Pablo MARTÍNEZ NUEVO
IPC分类号： G06N3/08 , G06N3/04 , G10L25/30 , G10L25/51
摘要： The present disclosure relates to a method for performing inference on input data using a neural network and a processing device employing the aforementioned method. The method comprises the steps of obtaining and storing input data, obtaining parameter data indicating the parameters of the first layer and storing the parameter data in a parameter data storage location and processing the input data using the first layer parameter data, to form first layer output data. The method further comprises storing the first layer output data, obtaining parameter data of the second layer and storing the second layer parameter data by replacing the first layer parameter data with the second layer parameter data, processing the first layer output data using the stored second layer parameter data to form second layer output data; and storing the second layer output data.

4. 发明申请

US20220038805A1 Headphone With Magnetic Attachment Means For A Corresponding Ear Cushion 有权
公开(公告)号：US20220038805A1
公开(公告)日：2022-02-03
申请号：US17390401
申请日：2021-07-30
申请人： Bang & Olufsen A/S
发明人： Knud-Erik Lauridsen , Bernardus L. Verbraak
IPC分类号： H04R1/10
摘要： A headphone device comprising a speaker housing and an ear-cushion, the speaker housing comprising a speaker housing side portion and the ear-cushion comprising an ear cushion side portion, where the speaker housing side portion and the ear cushion side portion respectively are configured for releasable connection, wherein said speaker housing side portion comprises a plurality of first permanent magnets provided at respective first locations on or in the speaker housing side portion; said ear cushion side portion comprises a plurality of second permanent magnets provided at respective second locations on or in the ear cushion side portion; where said first locations respectively correspond substantially to one of said second locations; where for each pair of said first and second permanent magnets, the magnetic field of a first permanent magnet, is opposite to the magnetic field of the corresponding second permanent magnet.

6. 发明申请

US20180343533A1 ACTIVE ROOM COMPENSATION IN LOUDSPEAKER SYSTEM 审中-公开
公开(公告)号：US20180343533A1
公开(公告)日：2018-11-29
申请号：US15757939
申请日：2015-12-16
申请人： BANG & OLUFSEN A/S
发明人： Jakob DYREBY
IPC分类号： H04S7/00 , H04R3/04 , H04R5/02 , H04R5/04
CPC分类号： H04S7/301 , H04R3/04 , H04R3/12 , H04R5/02 , H04R5/04 , H04S7/303
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 left and right compensation filters, and during playback applying the left and right filters to left and right input signals. The method further includes determining mono and side responses and designing mono and side compensation filters, and, during playback, applying the mono compensation filter to a mono signal based on the left and right input signals, and applying the side compensation filter to a side signal based on the left and right input signals. The filters are thus combined to provide left and right output signals which have been left/right filtered and mono/side filtered.

7. 发明授权

US09813805B2 Apparatus for redistributing acoustic energy 有权
公开(公告)号：US09813805B2
公开(公告)日：2017-11-07
申请号：US15026078
申请日：2014-10-16
申请人： Bang & Olufsen A/S
发明人： Peter John Chapman , Martin Olsen
IPC分类号： H04R1/20 , H04R1/34 , G10K11/28 , G10K11/20
CPC分类号： H04R1/345 , G10K11/20 , G10K11/28
摘要： An apparatus for re-distributing acoustic energy. The apparatus comprises a first concave surface defined as a surface of revolution of a line or curve. This curve of revolution is rotated beyond 230 degrees and thus defines a rather small opening, which has advantages in the frequency response output. Additionally or alternatively, edges of the concave surface may be rounded to provide advantageous effects in the sound output.

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