Filter control for varying data rate communication channels

Details Filter control for varying data rate communication channels Filter control for varying data rate communication channels

2007-08-07

2007-08-07

Bocure, Tesfaldet (Department: 2611)

Pulse or digital communications

Equalizers

Automatic

C375S377000

Reexamination Certificate

active

10117467

ABSTRACT:
Processing circuitry includes an analog filter and filter control circuitry and processes an analog signal having a varying data rate. The analog filter filters the analog signal based on a transfer characteristic to transfer a filtered signal. The filter control circuit processes a data clock signal corresponding to the varying data rate and a reference clock signal to generate a filter control signal to adjust the transfer characteristic in proportion to the varying data rate. The analog filter adjusts the transfer characteristic in proportion to the varying data rate in response to the filter control signal. The processing circuitry may be implemented in a tape, magnetic, or optical drive.

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