发明名称 Disc reproducing apparatus and head position calculating method
摘要 A disc reproducing device for detecting the position of a reproducing head along the radius of a disc for transferring the head to a targeted radial position on a disc. Since the radial position on the disc in which the optical pickup is positioned can be known prior to actuation of a variety of spindle servo functions, there is no necessity of reading out an address. As compared to a conventional device in which an optical pickup is transferred based on the address reproduced from the disc, access control can be realized more speedily. There is also no necessity of providing a imit switch for detecting the inner peripheral position.
申请公布号 US5974013(A) 申请公布日期 1999.10.26
申请号 US19970968975 申请日期 1997.11.12
申请人 SONY CORPORATION 发明人 KADONO, TOHRU
分类号 G11B7/085;G11B7/09;G11B11/105;G11B19/247;G11B21/08;(IPC1-7):G11B3/90;G11B5/09 主分类号 G11B7/085
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