Finisar Corporation

Jds Uniphase Corporation

Henry Poelstra

Geoffrey T Hibbert

Chris Cicchetti

Roumel R Garcia

A data alignment system suitable for use in manipulating the positioning of a designated portion of a data stream transmitted by a high speed communications system, so as to facilitate further processing of the data carried by the data stream. The data alignment system includes a detector and an alignment component in communication with each other. In operation, the detector locates and identifies, in accordance with suitable instructions, the designated portion of the data stream. The alignment component then repositions, in accordance with suitable instructions, the designated portion of the data stream at a predetermined location within the data stream.

Systems and methods for data alignment

A modification subsystem suitable for introducing user-defined errors into a designated data unit substantially in real time, so as to facilitate evaluation of the response of a high speed data communications system to errors as such are exemplified in the modified data unit. The modification subsystem includes a modification logic and state machine that communicates with a command stack memory and one or more jamming mode registers. Upon locating and identifying the designated data unit in a data stream, the modification logic and state machine accesses a jam setting stored in a jam mode register and, if it is determined that the modification that corresponds to the jam setting is valid, modifies the designated data unit in accordance with the jam setting. If the proposed modification is invalid, the modification is aborted.

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Mountain View, CA, United States of America

Henry Poelstra