公开(公告)号：US09819805B2

公开(公告)日：2017-11-14

申请号：US14323577

申请日：2014-07-03

Applicant: Sennheiser Communications A/S

Inventor： Svend Feldt ,  Adam Dyrby ,  Stig Petri

IPC: H04M9/08 ,  H04B3/21

CPC classification number: H04M9/082 ,  H04B3/21 ,  H04M9/087

Abstract: The application relates to a communication device, e.g. a speakerphone, comprising a microphone signal path, MSP, and a loudspeaker signal path, SSP, the microphone signal path comprising a microphone unit, an MSP-filter, and a transmitter unit operationally connected to each other and configured to transmit a processed signal originating from an input sound picked up by the microphone, the loudspeaker signal path comprising a receiver unit, an SSP-filter, and a loudspeaker unit operationally connected to each other and configured to provide an acoustic sound signal originating from a signal received by the receiver unit. The communication device comprises a control unit for dynamically controlling the filtering characteristics of the MSP and SSP-filters based on one or more control input signals. This has the advantage of providing a simple and flexible scheme for decreasing echo in a communication device, while ensuring an acceptable sound quality in the transmitted signal.

公开(公告)号：US09325285B2

公开(公告)日：2016-04-26

申请号：US14174562

申请日：2014-02-06

Applicant: Oticon A/S ,  Sennheiser Communications A/S

Inventor： Svend Feldt ,  Thomas Kaulberg ,  Torben Christiansen ,  Claus Benjaminsen

IPC: H03G5/00 ,  H03G3/00 ,  H03F1/32 ,  H04R3/04 ,  H03G7/00 ,  H04R27/00 ,  H04R3/00

CPC classification number: H03G3/00 ,  H03F1/327 ,  H03G7/002 ,  H04R3/005 ,  H04R3/04 ,  H04R27/00 ,  H04R2410/07

Abstract: An audio processing device comprises a multitude of electric input signals, each electric input signal being provided in a digitized form, and a control unit receiving said digitized electric input signals and providing a resulting enhanced signal. The control unit is configured to determine the resulting enhanced signal from said digitized electric input signals, or signals derived therefrom, according to a predefined scheme.

Abstract translation: 音频处理装置包括多个电输入信号，每个电输入信号以数字形式提供，以及控制单元接收所述数字化电输入信号并提供所产生的增强信号。 控制单元被配置为根据预定义的方案从所述数字化电输入信号或从其导出的信号确定所得到的增强信号。

公开(公告)号：US10368152B2

公开(公告)日：2019-07-30

申请号：US15712512

申请日：2017-09-22

Applicant: Sennheiser Communications A/S

Inventor： Torben Christiansen ,  Svend Feldt ,  Kim Larsen

IPC: H04R1/08 ,  H04R1/10 ,  H04R1/40 ,  H04R3/00

Abstract: The disclosure relates to a microphone arrangement comprising at least three groups of microphones that are mounted on a head-wearable support structure. The at least three groups of microphones comprising a first group of microphones with one or more microphones, a second group of microphones with one or more microphones, and a third group of microphones with one or more microphones, wherein the first group is mounted to a casing that accommodates signal transmission circuitry, the second group is mounted to slide with respect to the casing and the first group is mounted in a direction of a first axis. Furthermore, the third group comprises either at least one microphone that is arranged on the support structure so as to exhibit less sensitivity for sound coming from a user's mouth than for sound coming from a user's environment when the microphone arrangement is head-worn; or at least two microphones that are arranged symmetrically with respect to a user's head when the microphone arrangement is head-worn and that provide for a directionality that is orientated to the direction of a user's vision; or both.

公开(公告)号：US09100737B2

公开(公告)日：2015-08-04

申请号：US14103368

申请日：2013-12-11

Applicant: SENNHEISER COMMUNICATIONS A/S

Inventor： Esge Brandt Andersen ,  Claus Benjaminsen ,  Svend Feldt ,  Christian Wang ,  Torben Christiansen ,  Brian Brorsbøl

IPC: H04R25/00 ,  H04R1/02 ,  H04R1/08 ,  H04R1/10 ,  H04R1/40

CPC classification number: H04R1/02 ,  H04R1/08 ,  H04R1/083 ,  H04R1/1041 ,  H04R1/406

Abstract: A microphone boom is provided with extendable microphone arrays, and a headset having such a microphone boom. The headset comprise a casing accommodating the signal transmission circuitry and further comprises a speaker adapted to serve a sound signal at the proximity of a users ear and the speaker is protruding from the casing at a speaker-end of the casing and one microphone array is fixated relative to the casing distally with respect to the speaker-end.

Abstract translation: 麦克风臂具有可伸缩的麦克风阵列，以及具有这种麦克风的头戴式耳机。 耳机包括容纳信号传输电路的壳体，并且还包括适于在用户耳朵附近服务声音信号的扬声器，并且扬声器在壳体的扬声器端处从壳体突出并且一个麦克风阵列被固定 相对于外壳相对于扬声器端向远侧。

公开(公告)号：US10291784B2

公开(公告)日：2019-05-14

申请号：US15655295

申请日：2017-07-20

Applicant: Sennheiser Communications A/S

Inventor： Stig Petri ,  Svend Feldt

IPC: H04M9/08 ,  G06F17/14 ,  H03H21/00 ,  H04B3/23 ,  H04R3/02 ,  G10L21/0208 ,  G10L21/0232

Abstract: The invention relates to an adaptive filter unit, in particular for being used as an echo canceller, comprising a first filter input, configured to receive a first electric audio signal, indicative of a first audio signal A(t), a second filter input, configured to receive a second electric audio signal, indicative of a second audio signal B(t), a processor and a filter output. The processor is configured to calculate and provide audio estimation data X(fn, A(t1, . . . , tM(fn))) in the frequency domain; to calculate a transformed second audio signal Y(fn, B(t)), formed by a transformation of the second audio signal B(t) into the frequency domain; and to calculate a filtered audio signal by subtracting delayed audio estimation data from the transformed second audio signal, wherein the delayed audio estimation data is provided by a memory unit of the adaptive filter unit, which is arranged to provide a data exchange with the processor, and wherein the delayed audio estimation data comprises a frequency dependent time delay compared to the transformed second audio signal.

公开(公告)号：US09894445B2

公开(公告)日：2018-02-13

申请号：US14179324

申请日：2014-02-12

Applicant: Sennheiser Communications A/S

Inventor： Svend Feldt

IPC: H04R25/00 ,  H04J3/06

CPC classification number: H04R25/305 ,  H04R25/30

Abstract: A hearing device comprises a receiver, an input buffer and a sample processor, the receiver being adapted to receive samples of a digital audio signal and feed received samples as a digital input signal to the input buffer, the sample processor being adapted to process the buffered samples to provide samples of a digital output signal such that the digital output signal is a sample-rate converted representation of the digital input signal with a predetermined target sample rate. The hearing device further comprises a latency controller adapted to estimate the quality of reception of the digital audio signal and to control the processing of the buffered samples in dependence on the estimated quality of reception.

公开(公告)号：US09288562B2

公开(公告)日：2016-03-15

申请号：US14788308

申请日：2015-06-30

Applicant: SENNHEISER COMMUNICATIONS A/S

Inventor： Esge Brandt Andersen ,  Claus Benjaminsen ,  Svend Feldt ,  Christian Wang ,  Torben Christiansen ,  Brian Brorsbøl

IPC: H04R1/02 ,  H04R1/08

CPC classification number: H04R1/02 ,  H04R1/08 ,  H04R1/083 ,  H04R1/1041 ,  H04R1/406

Abstract: A microphone boom is provided with an extendable microphone assembly, and a headset having such a microphone boom. The headset includes a casing accommodating the signal transmission circuitry and further includes a speaker adapted to serve a sound signal at the proximity of a user's ear and the speaker is protruding from the casing at a speaker-end of the casing and a microphone assembly is fixated relative to the casing distally with respect to the speaker-end.

Abstract translation: 麦克风吊杆设置有可延伸的麦克风组件和具有这种麦克风吊杆的耳机。 耳机包括容纳信号传输电路的壳体，并且还包括适于在用户耳朵附近服务声音信号的扬声器，并且扬声器在壳体的扬声器端处从壳体突出并且固定麦克风组件 相对于外壳相对于扬声器端向远侧。