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    • 31. 发明授权
    • Post-filter for handling resonance-induced echo components
    • 用于处理共振引起的回波组件的后置滤波器
    • US09596541B2
    • 2017-03-14
    • US14479762
    • 2014-09-08
    • Dialog Semiconductor B.V.
    • Michiel HelslootGeorgios FlamisGavin Radolan
    • H04B3/20H04R3/02H04M9/08H04B15/00H04M1/60
    • H04R3/02H04M1/6041H04M9/085
    • A method and system for improving echo suppression and/or duplexity of handsfree telephone applications is presented. An echo suppression unit for an electronic device comprising a loudspeaker and a microphone is described. The microphone is configured to capture a transmit signal, wherein the transmit signal comprises an echo of a receive signal rendered by the loudspeaker. The echo suppression unit is configured to determine, based on the receive signal, whether the receive signal comprises a first frequency component causing the echo of the receive signal to comprise a distortion component. The distortion component comprises one or more frequencies which are not comprised within the first frequency component. Furthermore, the echo suppression unit is configured to apply a post-filter to the transmit signal, if it is determined that the receive signal comprises the first frequency component. The post-filter is configured to selectively attenuate the distortion component.
    • 提出了一种用于改善免提电话应用的回波抑制和/或双工性的方法和系统。 描述了一种用于包括扬声器和麦克风的电子设备的回声抑制单元。 麦克风被配置为捕获发射信号,其中发射信号包括由扬声器呈现的接收信号的回波。 回波抑制单元被配置为基于接收信号来确定接收信号是否包括使接收信号的回波包括失真分量的第一频率分量。 失真分量包括不包括在第一频率分量内的一个或多个频率。 此外,如果确定接收信号包括第一频率分量,则回波抑制单元被配置为对发射信号应用后置滤波器。 后置滤波器被配置为选择性地衰减失真分量。
    • 34. 发明申请
    • Wrist Phone With Improved Voice Quality
    • 腕表手机具有改善的声音质量
    • US20160344854A1
    • 2016-11-24
    • US15225009
    • 2016-08-01
    • venyard GmbH
    • Edgar Jochheim
    • H04M1/60H04B1/3827H01Q9/04H01Q1/27H01Q1/24H01Q1/52H04M1/02H01Q1/38
    • H04M1/0202H01Q1/243H01Q1/273H01Q1/38H01Q1/526H01Q9/0407H04B1/385H04B2001/3861H04M1/0277H04M1/6041Y10T29/49826
    • A wrist phone with a single button includes a molded-plastic wristband and a wristband cap. A wireless transceiver module is mounted on a printed circuit board and is contained in a component cavity between the wristband and the wristband cap. A foil antenna is attached directly to the printed circuit board and extends between an outer layer and a wrist-facing layer of a flexible strap portion of the wristband. A microphone is located between the layers of the opposite flexible strap portion of the wristband at least two centimeters away from the wireless transceiver module. The single button is formed using the interleaved fingers of a landing pad on a surface beneath the inner surface of the wristband. The inner surface of the wristband is covered by a layer of conductive material that makes an electrical connection between the interleaved fingers when the outer surface of the wristband is pressed.
    • 具有单个按钮的手持电话包括模塑塑料腕带和腕带盖。 无线收发器模块安装在印刷电路板上并且被包含在腕带和腕带盖之间的部件空腔中。 箔片天线直接连接到印刷电路板上,并在腕带的柔性带部分的外层和腕面层之间延伸。 麦克风位于远离无线收发器模块至少两厘米的腕带的相对的柔性带部分的层之间。 使用在腕带内表面下方的表面上的着陆垫的交错的手指形成单个按钮。 腕带的内表面被导电材料层覆盖,当按压腕带的外表面时,该导电材料层在插入的手指之间形成电连接。