Patent ID: 7742254
Filing Date: 2010-06-22
Classification: G11B

Abstract:
1. A synchronous servo channel for a data tape drive, comprising: a servo reader configured to read servo bursts from a data tape; an anti-aliasing filter operable to output a bandlimited signal and coupled to receive a servo channel signal comprising servo bursts from the servo reader; an analog-to-digital converter (ADC) operable to output signal samples and coupled to receive the bandlimited signal from the anti-aliasing filter; an interpolation and control unit operable to output interpolated signal samples and control signals, having a first input coupled to receive the signal samples from the ADC, and having a second input coupled to receive the correlation signal samples from the dibit correlator; and a dibit correlator operable to output correlation signal samples and coupled to receive the interpolated signal samples and control signals from the interpolation and control unit.