Multiplex communications – Special services – Conferencing
Reexamination Certificate
2005-09-06
2005-09-06
Patel, Ajit (Department: 2664)
Multiplex communications
Special services
Conferencing
C379S202010, C455S416000, C370S521000
Reexamination Certificate
active
06940826
ABSTRACT:
Packet-based central conference bridges, packet-based network interfaces and packet-based terminals are used for voice communications over a packet-based network. Modifications to these apparatuses can reduce the latency and the signal processing requirements while increasing the signal quality within a voice conference as well as point-to-point communications. For instance, by selecting the talkers prior to the decompression of the voice signals, decreases in the latency and increases in signal quality within the voice conference can result due to a possible removal of the decompression and subsequent compression operations in a conference bridge unnecessary in some circumstances. Further, the removal of the jitter buffers within the conference bridges and the moving of the mixing operation to the individual terminals and/or network interfaces are modifications that can cause lower latency and transcoding within the voice conference.
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Burns Nina K.
Edholm Philip K.
Simard Frederic F.
Borden Ladner Gervais LLP
Measures Jeffrey M.
Nortel Networks Limited
Patel Ajit
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