Dynamic magnetic information storage or retrieval – General processing of a digital signal
Reexamination Certificate
2006-03-10
2008-09-09
Wellington, Andrea (Department: 2627)
Dynamic magnetic information storage or retrieval
General processing of a digital signal
C360S046000
Reexamination Certificate
active
07423826
ABSTRACT:
A readback system includes a magnetic sensor that receives a sensor current. The magnetic sensor senses magnetic bits at a bit frequency and generates a sensor output. The readback system includes a channel circuit that modulates the sensor current at a modulation frequency higher than the bit frequency. The channel circuit samples the sensor output and combines multiple samples of the sensor output per magnetic bit into a combined sample output.
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Dakroub Housan
Gao Kaizhong
Insik Jin
Jury Jason C.
Li Shaoping
Kapadia Varsha A
Westman Champlin & Kelly P.A.
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