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    COMMUNICATION SYSTEM INCLUDING EAVESDROPPING
    12.
    发明申请
    COMMUNICATION SYSTEM INCLUDING EAVESDROPPING 审中-公开

    公开(公告)号：US20180255119A1

    公开(公告)日：2018-09-06

    申请号：US15908332

    申请日：2018-02-28

    Applicant: Sennheiser Communications A/S

    Inventor： Torben CHRISTIANSEN ,  Svend FELDT ,  Bjarne KLEMMENSEN

    IPC: H04L29/06 ,  H04N21/439

    CPC classification number: H04L65/608 ,  H04L12/66 ,  H04L47/2416 ,  H04L63/0428 ,  H04L63/0442 ,  H04L63/064 ,  H04L65/403 ,  H04N21/439 ,  H04W12/003 ,  H04W84/20 ,  H04W88/16

    Abstract: The disclosure presents a method and a communication system comprising; an audio gateway including; a first wireless interface configured to transmit and receive an audio signal via a first communication link, a processing unit configured to transfer the audio signal into an audio streaming signal, a second wireless interface configured to transmit the audio streaming signal via a second communication link, a plurality of communication units comprising a master communication unit and at least a first slave communication unit, wherein each of the communication unit comprises: a first wireless interface configured to receive the audio streaming signal via the second communication link and to communicate with a communication unit, a speaker configured to sound the audio streaming signal received from the audio gateway, a memory unit, and wherein the master communication unit is configured to transmit a pairing request via the second communication link to the audio gateway, and the audio gateway transmits then an encryption key to the master communication unit, and the first slave communication unit is configured to request the encryption key by transmitting an encryption request including an identification of the first slave communication unit to the master communication unit via a first internal communication link, and the master communication unit transmits then the encryption key relating to the second communication link to the first slave communication unit based on an access criteria, and the first slave communication unit is then configured to eavesdrop the audio streaming signal being communicated via the second communication link between the audio gateway and the master communication unit.

    MICROPHONE BOOM
    15.
    发明申请
    MICROPHONE BOOM 审中-公开
    麦克风加热

    公开(公告)号：US20150304749A1

    公开(公告)日：2015-10-22

    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。

    COMMUNICATION DEVICE WITH ECHO SUPPRESSION
    16.
    发明申请
    COMMUNICATION DEVICE WITH ECHO SUPPRESSION 有权
    具有ECHO抑制功能的通信设备

    公开(公告)号：US20150011266A1

    公开(公告)日：2015-01-08

    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

    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.

    Abstract translation: 该应用涉及通信设备，例如， 扬声器电话，包括麦克风信号路径MSP和扬声器信号路径SSP，所述麦克风信号路径包括麦克风单元，MSP滤波器和发射机单元，所述麦克风单元，MSP滤波器和发射机单元可操作地彼此连接并且被配置为发送经处理的信号 从麦克风拾取的输入声音，扬声器信号路径包括接收器单元，SSP滤波器和扬声器单元，其可操作地彼此连接并且被配置为提供源自由接收器单元接收的信号的声音信号 。 通信设备包括用于基于一个或多个控制输入信号动态地控制MSP和SSP滤波器的滤波特性的控制单元。 这具有提供用于减少通信设备中的回波的简单且灵活的方案，同时确保发送信号中可接受的声音质量。

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