Invention Grant
US5493553A Method and apparatus for preventing cross-talk during reproduction of
data recorded on a high density recording medium
失效
用于在再现记录在高密度记录介质上的数据时防止串扰的方法和装置
- Patent Title: Method and apparatus for preventing cross-talk during reproduction of data recorded on a high density recording medium
- Patent Title (中): 用于在再现记录在高密度记录介质上的数据时防止串扰的方法和装置
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Application No.: US284653Application Date: 1994-08-17
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Publication No.: US5493553APublication Date: 1996-02-20
- Inventor: Francois Maurice , Michel Sonrier , Charaf Hanna , Joseph Colineau
- Applicant: Francois Maurice , Michel Sonrier , Charaf Hanna , Joseph Colineau
- Applicant Address: FRX Paris FRX Courbevoie
- Assignee: Thomson CSF,Thomson Consumer Electronics
- Current Assignee: Thomson CSF,Thomson Consumer Electronics
- Current Assignee Address: FRX Paris FRX Courbevoie
- Priority: FRX9215474 19921222
- Main IPC: G11B5/027
- IPC: G11B5/027 ; G11B5/49 ; G11B11/105 ; G11B15/12 ; G11B20/10 ; G11B21/10 ; G11B7/00
Abstract:
A method and system for preventing cross-talk during reproduction of data recorded on a high density recording medium. The method includes the steps of receiving signals from at least three consecutively parallel information tracks on a recording medium, determining first and second cross-talk coefficients representing a degree of cross-talk between the three parallel information tracks, filtering the first and second cross-talk coefficients, correcting the cross-talk between the first, second, and third information tracks in accordance with the first and second cross-talk coefficients, forming a difference between the first and second cross-talk coefficients and integrating this difference to generate a track following correction signal, and repeating the above steps for each of the information tracks on the recording medium.
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