Invention Grant
US08855353B2 Headset loop antenna for audio devices 有权
用于音频设备的耳机环形天线

  • Patent Title: Headset loop antenna for audio devices
  • Patent Title (中): 用于音频设备的耳机环形天线
  • Application No.: US12809929
    Application Date: 2008-10-28
  • Publication No.: US08855353B2
    Publication Date: 2014-10-07
  • Inventor: Cor Meesters
  • Applicant: Cor Meesters
  • Applicant Address: NL Eindhoven
  • Assignee: NXP, B.V.
  • Current Assignee: NXP, B.V.
  • Current Assignee Address: NL Eindhoven
  • Priority: EP07123802 20071220
  • International Application: PCT/IB2008/054438 WO 20081028
  • International Announcement: WO2009/083812 WO 20090709
  • Main IPC: H04R25/00
  • IPC: H04R25/00 H01Q9/30 H01Q7/00 H01Q1/27
Headset loop antenna for audio devices
Abstract:
The present invention relates to a headset device, an audio device and methods of receiving a radio signal via the headset device, wherein the headset device comprises at least one first conductor for supplying an audio signal to a respective ear-piece, a second conductor arranged in a loop configuration for providing a magnetic antenna, and a connector (50) having at least one respective first connecting portion (3, 4) for providing a connection to the at least one first conductor (140), a second connecting portion (1) for providing a connection to a first end of the second conductor (70), and a third connecting portion (2) for providing a connection to a second end of the second conductor (70), wherein an output of the magnetic antenna is provided between the second and third connecting portions (1, 2). At the audio device, an impedance transformer (10) is coupled to the second and third connecting portions at its primary side and to an amplifier (20) at its secondary side.
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