Dynamic magnetic information storage or retrieval – General processing of a digital signal
Reexamination Certificate
2005-12-27
2005-12-27
Hudspeth, David (Department: 2651)
Dynamic magnetic information storage or retrieval
General processing of a digital signal
C360S051000, C360S048000, C360S026000, C360S053000, C360S054000, C360S062000
Reexamination Certificate
active
06980385
ABSTRACT:
In order to generate a sampling clock having a higher accuracy, a synchronous signal generating circuit is provided with a phase error detector, detecting a phase error of a read out signal digitized on the basis of FDTS algorithm, and a VCO, controlling an oscillation frequency on the basis of a phase error detected by the phase error detector, to generate a synchronous signal by the VCO. On the basis of the synchronous signal generated by the synchronous signal generating circuit, an ADC digitizes the read out signal. The digitized read out signal is then converted to binary data by a detection circuit.
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Ide Hiroshi
Kato Takatoshi
Nakai Nobuaki
Nara Takashi
Nishiya Takushi
Antonelli, Terry Stout and Kraus, LLP.
Figueroa Natalia
Hitachi Global Storage Technologies Japan Ltd.
Hitachi Video and Information System Inc.
Hudspeth David
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