Predictive methods and systems for sampling data read from a...

Details Predictive methods and systems for sampling data read from a... Predictive methods and systems for sampling data read from a...

2011-08-23

2011-08-23

Negrón, Daniell L (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

Reexamination Certificate

active

08004784

ABSTRACT:
A frequency adjustment system comprises an offset estimation module and a frequency adjustment module. The offset estimation module estimates a distance between data written to a rotating storage medium and a first center location about which the rotating storage medium rotates, the data having been previously written to the rotating storage medium relative to a second center location that is different than the first center location. The frequency adjustment module adjusts a sampling frequency at which the data is read from the rotating storage medium based on the distance between the data and the first center location.

REFERENCES:
patent: 4918677 (1990-04-01), Ashinuma et al.
patent: 5905705 (1999-05-01), Takeda et al.

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