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US 6,275,328 B1Granted
Amplifier control
AssigneeNortel Networks Limited
InventorsSimon Parry, Alan Robinson, Jonathan King
Life of this patent
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AssigneeNortel Networks Limited
InventorsSimon Parry, Alan Robinson, Jonathan King
Estimating the term…
A method and apparatus for determining control signals of a filter for optimization of the gain profile of an amplifier, particularly though not exclusively for use in optical communications systems, and a system incorporating the same. The method is for calculating at least one control signal for at least one periodic filter arranged to alter the output gain profile of an amplifier, in which at least one of the phase and amplitude of the filter response are tuneable. The method includes the steps of: determining an error profile from the amplifier output gain profile and a predetermined target output gain profile; determining the dot product of the error profile and a first function of similar period and form to the response of the filter; determining the dot product of the error profile and a second function of similar period and form to the response of the filter, said second function being substantially orthogonal to said first; and determining at least one control signal for tuning of said filter from the calculated dot products.
A method of generating at least one control signal for at least one periodic filter arranged to alter the output gain profile of an amplifier, at least one of the phase and amplitude of the filter response being tuneable, the method comprising the steps of:
A method of generating at least one control signal for at least one periodic filter arranged to alter the output gain profile of an amplifier, at least one of the phase and amplitude of the filter response being tuneable, the method comprising the steps of:
An apparatus for generating at least one control signal for at least one periodic filter arranged to alter the output gain profile of an amplifier, at least one of the phase and amplitude of the filter response being tuneable, the apparatus comprising:
An apparatus for generating at least one control signal for at least one periodic filter arranged to alter the output gain profile of an amplifier, at least one of the phase and amplitude of the filter response being tuneable, the apparatus comprising:
Dependencies are inferred from the claim text.