Alternative sensors for tracking and timing in bit patterned...

Details Alternative sensors for tracking and timing in bit patterned... Alternative sensors for tracking and timing in bit patterned...

2007-06-29

2009-10-27

Tzeng, Fred (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

Reexamination Certificate

active

07609469

ABSTRACT:
An apparatus includes a bit patterned magnetic storage media, a write transducer positioned adjacent to the bit patterned magnetic storage media, a write driver coupled to the write transducer to deliver write pulses to the write transducer, an optical sensor for producing a bit pattern signal, and a timing recovery circuit for producing a synchronization signal in response to the bit pattern signal, wherein the timing of the write pulses is adjusted in response to the synchronization signal.

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