Patterned magnetic media synchronization systems,申请号US20100888744-传众专利搜索

Patterned magnetic media synchronization systems

申请公布号：US8331050(B1)

申请号：US20100888744

申请日期：2010.09.23

申请公布日期：2012.12.11

申请人：

ZOU QIYUE;YANG XUESHI;BURD GREGORY;MARVELL INTERNATIONAL LTD.

发明人：ZOU QIYUE;YANG XUESHI;BURD GREGORY

分类号：G11B5/09

主分类号：G11B5/09

摘要：A write clock synchronization system includes a channel module that reads a servo section of a bit-patterned magnetic medium to determine a preamble signal based on the servo section. An initial phase estimating system estimates an initial phase of the preamble signal based on servo clock samples of the preamble signal and estimates an initial phase of the preamble signal based on write clock samples of the preamble signal. A phase determination module estimates a phase of the write clock signal based on the initial phase of the preamble signal estimated using the servo clock samples and the initial phase of the preamble signal estimated using the write clock samples. A phase error module estimates a phase error based on the phase of the write clock signal. The channel module writes data to discontinuous bit islands of the bit-patterned magnetic medium based on the phase error.