发明名称 MICROPHONE EXPANSION UNIT FOR TELECONFERENCE PHONE CALLS
摘要 A portable teleconference phone system includes a plurality of portable computers each having a microphone disposed therein, the microphone configured to receive a plurality of analog audio signals from a plurality of users at a first location, the analog audio signals being converted into one of a plurality of digital audio signals at the portable computers; and a portable teleconference unit located at the first location configured to receive the digital audio signals from the portable computers over a wireless link using a Bluetooth communication protocol, the portable teleconference unit configured to multiplex the digital audio signals into a single digital audio signal, convert the single digital audio signal into a single analog audio signal representative of the analog audio signals, and send the single analog audio signal over a communication wire to a remote communication device operated by a plurality of users at a second location forming a teleconference.
申请公布号 US2009052351(A1) 申请公布日期 2009.02.26
申请号 US20070844686 申请日期 2007.08.24
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 JAMES DWAYNE R.;O'FARRELL WILLIAM G.;RYMAN ARTHUR G.
分类号 H04L12/18 主分类号 H04L12/18
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