Communications: electrical – Systems – Selsyn type
Reexamination Certificate
2007-03-20
2007-03-20
Pham, Toan N. (Department: 2612)
Communications: electrical
Systems
Selsyn type
C340S315000, C340S315000, C375S258000
Reexamination Certificate
active
10643316
ABSTRACT:
Data throughput rate in a power line communications (“PLC”) system is controlled by generating PLC carrier signals in accordance with a PLC signal frame structure containing payload symbols where the payload symbol length is selected based on at least one of a PLC system channel quality and node configuration data. The selected payload symbol length determines the processing operations that a source PLC transceiver performs for generating PLC signals or that a destination PLC transceiver performs for extracting information content from received PLC signals. The payload symbol lengths can be selected to maximize the data throughput rate while maintaining compatibility with prior art PLC system protocols and standards that require a PLC signal frame structure and its payload portion to have fixed, predetermined lengths.
REFERENCES:
patent: 4715045 (1987-12-01), Lewis et al.
patent: 5490168 (1996-02-01), Phillips et al.
patent: 6459692 (2002-10-01), Ben-Michael et al.
patent: 6854059 (2005-02-01), Gardner
patent: 2003/0090368 (2003-05-01), Ide et al.
patent: 2003/0133473 (2003-07-01), Manis et al.
Ebert Brion
Lawrence David
Logvinov Oleg
Walvis Dirk
Arkados, Inc.
Mintz Levin Cohn Ferris Glovsky and Popeo PC
Pham Toan N.
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