Invention Application
US20030012303A1 Method and apparatus for optimizing a PRML data-receiving channel for data-storage systems
审中-公开
用于优化数据存储系统的PRML数据接收通道的方法和装置
- Patent Title: Method and apparatus for optimizing a PRML data-receiving channel for data-storage systems
- Patent Title (中): 用于优化数据存储系统的PRML数据接收通道的方法和装置
-
Application No.: US10159773Application Date: 2002-05-31
-
Publication No.: US20030012303A1Publication Date: 2003-01-16
- Inventor: Angelo Dati , Cecilia Tonci , Paolo Gaducci
- Applicant: STMicroelectronics S.r.I.
- Applicant Address: null
- Assignee: STMicroelectronics S.r.I.
- Current Assignee: STMicroelectronics S.r.I.
- Current Assignee Address: null
- Priority: EP01830358.6 20010531
- Main IPC: H04L027/22
- IPC: H04L027/22 ; H04L027/14 ; H04L027/06

Abstract:
A method is provided for optimizing a PRML (Partial Response Maximum Likelihood) receiving channel for mass memory data receiving systems comprising an input receiving channel, a receiver placed downstream of the channel, a detector connected in cascade to the receiver, and a summing node being input both the receiver output through a delay line, and the output from the detector through an impulsive filter. The method includes performing an indirect estimate of the noise strength by filtering out the error sequence, i.e. the output signal from the summing node, through a filter, and selecting either the output from the summing node or the output from the filter to obtain an optimization parameter for feedback to the receiving system.
Information query