Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Unwanted signal suppression
Reexamination Certificate
2006-07-11
2006-07-11
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Unwanted signal suppression
C327S552000
Reexamination Certificate
active
07075362
ABSTRACT:
Circuits and methods for coherent noise cancellation are provided. More specifically, circuits and methods are provided for coherent cancellation of noise that is present in a data signal due to noise being present in the source signal (e.g., an optical signal) that is used to produce the data signal. The circuits, which use a subtraction process rather than division, are easy to implement in a chip, and provide for wide bandwidth performance.
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Elantec Semiconductor Inc.
Fliesler & Meyer LLP
Le Dinh T.
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