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

Claim 0:
1. A data structure apparatus for structuring a burst-mode digital data stream of a polarization multiplexed signal transmitted over a network communication system, comprising:
a processor configured to receive the burst-mode digital data stream; and
a memory having computer-executable instructions encoded therein, which, when executed by the processor, cause the processor to structure the received burst-mode digital data stream into:
a first data payload portion including a first payload data sequence corresponding to a first polarization of the polarization multiplexed signal, and a second payload data sequence corresponding to a second polarization of the polarization multiplexed signal, wherein the first polarization is different from second polarization; and
a first preamble portion disposed prior to the first data payload portion in time, the first preamble portion including 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,
wherein N is a number greater than zero,
wherein each symbol of the N symbols includes two or more digital bits, and
wherein the second preamble component comprises entirely null bits within a complete duration of the first preamble component.