Patent ID: 11863297
Assignee: CABLE TELEVISION LABORATORIES, INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A method for structuring data of a burst-mode digital data stream of a polarization multiplexed signal, the method performed by at least one processor in communication with a memory device, the method comprising the steps of:
receiving the burst-mode digital data stream at a processor input;
restructuring the received burst-mode digital data stream into (i) a data payload portion, and (ii) a preamble portion disposed prior to the data payload portion in time;
configuring the data payload portion to include (i) a first payload data sequence corresponding to a first polarization of the polarization multiplexed signal, and (ii) a second payload data sequence corresponding to a second polarization of the polarization multiplexed signal, wherein the first polarization is different from second polarization;
outputting a restructured data stream according to the data payload portion and the preamble portion,
wherein the preamble portion includes a first preamble component preceding the first payload data sequence and a second preamble component preceding the second payload data sequence,
wherein the first preamble component aligns with the second preamble component in time,
wherein the first preamble component has a length of N symbols, N being a number greater than zero, and
wherein the second preamble component includes entirely null bits within a total duration of the first preamble component.