发明名称 |
DISTRIBUTED TELECONFERENCE MULTICHANNEL ARCHITECTURE, SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT |
摘要 |
<p>Provided are multichannel architectures, systems, methods, and computer program products for distributed teleconferencing using one or more master devices and/or a centralized conferencing switch. Multichannels enhance functionality of a master device in distributed teleconferencing and allow for compatibility with 3D capable teleconferencing. Multichannel distributed teleconferencing involves multichannel, monophonic, and/or a fixed number of uplink and downlink channels. A multichannel distributed teleconferencing system may perform active talker detection of near-end participants and communicate an ID signal on an uplink channel identifying the active near-end participants. A multichannel distributed teleconferencing system may also receive an ID signal on a downlink channel identifying the active far-end participants. A multichannel distributed teleconferencing system may perform various uplink and downlink processing. Uplink processing may involve multimixing and spatialization. Multimixing may be used to separate speech signals of near-end participants. Spatialization, also used in downlink processing, introduces spatial separation of active participants.</p> |
申请公布号 |
WO2008081372(A1) |
申请公布日期 |
2008.07.10 |
申请号 |
WO2007IB55093 |
申请日期 |
2007.12.13 |
申请人 |
NOKIA CORPORATION;NOKIA, INC.;VIROLAINEN, JUSSI;LAAKSONEN, LAURA;AHMANIEMI, ALI;VALVE, PAEIVI |
发明人 |
VIROLAINEN, JUSSI;LAAKSONEN, LAURA;AHMANIEMI, ALI;VALVE, PAEIVI |
分类号 |
H04M3/56;H04M1/725 |
主分类号 |
H04M3/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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