发明授权
US06687067B2 Perpendicular signal equalization and timing recovery using Hilbert transform
失效
使用希尔伯特变换的垂直信号均衡和定时恢复
- 专利标题： Perpendicular signal equalization and timing recovery using Hilbert transform
- 专利标题（中）： 使用希尔伯特变换的垂直信号均衡和定时恢复
-
申请号： US09802636申请日： 2001-03-09
-
公开(公告)号： US06687067B2公开(公告)日： 2004-02-03
- 发明人: Francesco Brianti , Bertrand Gabillard , Martin Aureliano Hassner , Manfred Ernst Schabes , Yoshiaki Sonobe , Barry Marshall Trager
- 申请人： Francesco Brianti , Bertrand Gabillard , Martin Aureliano Hassner , Manfred Ernst Schabes , Yoshiaki Sonobe , Barry Marshall Trager
- 主分类号： G11B509
- IPC分类号： G11B509
摘要：
A Hilbert transform is used to process perpendicular magnetic recording signals from both single layer and dual layer disks to produce a complex analytic signal. This complex analytic signal is used to derive angles of magnetization, which depend on the distance between recorded magnetic transitions and consequently which can be used in error estimation. Moreover, the Hilbert transform in cooperation with an equalizer FIR optimizes transformation of the signal such that conventional longitudinal recording processing methods can subsequently be used to process the signal that is read back from the magnetic recording medium.
公开/授权文献
信息查询
