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AssigneeIntel Corporation
InventorsNorman F. Krasner, Allen Ponsford Edwards, William G. Xenakis, Bruce J. Currivan
Estimating the term…
A hybrid fiber/coax digital data transmission system in which data from a plurality of subscribers are transmitted upstream to a headend demodulator in a series of data bursts. The headend demodulator acquires and synchronizes a data burst by detecting a BPSK preamble having a repetitive one and zero pattern (10101010101000). The pattern is detected by integrating clock energy in an envelope of a preamble length transmission and using the last three symbols (0,0,0) as a frame marker after differential decoding. Noise in the system is periodically measured by detecting an empty burst placed periodically in the data stream. A first-in, first-out (FIFO) memory allows closer spacing for the data bursts by permitting asynchronous received and output clocks.
A method in a demodulator for receiving an incoming signal having data bursts on a signal line, comprising steps of:
A burst demodulator for receiving an incoming signal having data bursts on a signal line, comprising:
A method in a demodulator for receiving an incoming signal having data bursts, comprising steps of:
A burst demodulator for receiving an incoming signal having data bursts, comprising:
Dependencies are inferred from the claim text.