Phase correction circuit for a disk reproduction d

专利名称：Phase correction circuit for a disk

reproduction device

发明人：Tsuneo Fujiwara申请号：US10045697申请日：20020114公开号：US06934229B2公开日：20050823

专利附图：

摘要：A phase correction circuit includes a phase control data generation circuit whichjudges whether or not the present sector is a leading sector in an ECC block, which is theminimum recording unit in a magneto-optical disk, and generates phase control data by

referring to a phase difference data of a previous sector when the present sector is notthe leading sector, based on a phase difference detected by a phase difference detectioncircuit; and a phase control circuit for controlling the phase of a channel clock based onthe output of the phase control data generation circuit. With this structure, it becomespossible to provide the phase correction circuit for a disk reproduction device which cangenerate a sampling clock even when there is a flaw, etc. in a fixed pattern area of themagneto-optical disk, by making a correction so as to avoid or reduce influence by theflaw, etc., and to provide the disk reproduction device using the circuit.

申请人：Tsuneo Fujiwara

地址：Nabari JP

国籍：JP

代理机构：Edwards & Angell, LLP

代理人：David G. Conlin,William J. Daley, Jr.

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