Multilevel pulse position modulation for efficient encoding...

Details Multilevel pulse position modulation for efficient encoding... Multilevel pulse position modulation for efficient encoding...

2011-06-14

2011-06-14

Tzeng, Fred (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

07961424

ABSTRACT:
A storage medium on which servo patterns are encoded to provide lateral and longitudinal position (LPOS) information is provided. Each of the servo patterns includes a servo frame, including first through fourth bursts, which are each independently modulated with multi-level pulse position modulation (PPM) to encode at least one independent bit per burst.

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