首页>
外国专利>
Pairing devices in Conference using ultrasonic beacon and subsequent control thereof
Pairing devices in Conference using ultrasonic beacon and subsequent control thereof
展开▼
机译:会议中使用超声信标配对设备及其后续控制
展开▼
页面导航
摘要
著录项
相似文献
摘要
A videoconferencing system has a videoconferencing unit that use portable devices as peripherals for the system. The portable devices obtain near-end audio and send the audio to the videoconferencing unit via a wireless connection. In turn, the videoconferencing unit sends the near-end audio from the loudest portable device along with near-end video to the far-end. The portable devices can control the videoconferencing unit and can initially establish the videoconference by connecting with the far-end and then transferring operations to the videoconferencing unit. To deal with acoustic coupling between the unit's loudspeaker and the portable device's microphone, the unit uses an echo canceller that is compensated for differences in the clocks used in the A/D and D/A converters of the loudspeaker and microphone.
展开▼