Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2006-01-09
2008-07-15
Abelson, Ronald (Department: 2619)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C370S538000, C370S540000, C370S543000, C370S544000
Reexamination Certificate
active
07400657
ABSTRACT:
Systems and methods for conveying multiple low-bit-rate data streams over a data transport medium which is configured to transport data in a single, high-bit-rate data stream. In one embodiment, a plurality of low-bit-rate signals are received and a corresponding data rate is determined. Each of the signals is formatted in frames comprising a payload and overhead data. The high-bit-rate signal is also formatted in frames comprising a payload and overhead data, but the frames (including payload and overhead) contain more bits than those of the low-bit-rate frames. The payloads of the low-bit-rate frames are mapped into the payloads of the high-bit-rate frames. The overhead and timing data of the low-bit-rate frames are mapped into the unused portion of the overhead of the high-bit-rate frames. After the high-bit-rate signal is transported, the payload, overhead and timing data of each of the low-bit-rate signals is extracted, and the corresponding signals are reproduced.
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Hari Gopalakrishnan
Somashekhar Hosagrahar
Abelson Ronald
Connolly Bove & Lodge & Hutz LLP
YT Networks Capital, LLC
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