Data detection for local probe data storage devices

Details Data detection for local probe data storage devices Data detection for local probe data storage devices

2006-09-19

2006-09-19

Mai, Lam T. (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S139000

Reexamination Certificate

active

07109905

ABSTRACT:
Apparatus for detecting data in a sensor signal generated by a read sensor in a local probe data storage device comprises a differentiation for subtracting a value of the sensor signal from the succeeding value of the sensor signal to generate a ternary difference signal; and a convertor connected to the differentiator for converting the difference signal into a binary output signal indicative of the detected data. A local probe data storage device comprising such apparatus is also described.

REFERENCES:
patent: 3609684 (1971-09-01), Lipp
patent: 4103234 (1978-07-01), Frazier, Jr.
patent: 5241312 (1993-08-01), Long
patent: 5394388 (1995-02-01), Hatanaka et al.
patent: 6611222 (2003-08-01), Murphy

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