发明名称 AN OPTICAL DISC DRIVE
摘要 An optical disc drive that employs a velocity feedback loop for detecting the moving velocity (SV20) of an optical pickup, thereby to enable the optical pickup to seek a target recording track of an optical disc. The number of tracks (DT) to the target recording track is calculated on the basis of a signal derived from the optical pickup and a target velocity signal is supplied to the velocity feedback loop in accordance with the calculated result, whereby the moving velocity of the optical pickup can be controlled to become [0] at a timing (time point) at which the optical pickup reaches the target recording track.
申请公布号 EP0304299(A3) 申请公布日期 1990.09.05
申请号 EP19880307646 申请日期 1988.08.18
申请人 SONY CORPORATION 发明人 WACHI, SHIGEAKI
分类号 G11B7/085;G11B21/08;(IPC1-7):G11B7/08 主分类号 G11B7/085
代理机构 代理人
主权项
地址