Write zero phase start for phase synchronization in bit patterned recording

摘要

A bit patterned recording system includes a servo channel module configured to recover servo fields written with servo information. A field locator module is configured to locate a field printed to data islands of a medium based on a location of one of the servo fields. The servo islands and the data islands have different spacing. A servo clock has a different phase and frequency than a data clock. A phase error calculator module is configured to estimate a phase error of the data clock based on the field and the data clock. The phase error is used to adjust a phase of the data clock.