发明名称 EINRICHTUNG ZUM AUSLESEN EINES SCHEIBENFOERMIGEN AUFZEICHNUNGSTRAEGERS
摘要 An apparatus for optically reading a record carrier on which information is contained in tangentially extending tracks includes a directing system for making the scanning spot cooperate with the desired track. In order to enable a jump-wise displacement of the scanning spot from a track being followed to an adjacent track, a switching device is provided for supplying a suitable control signal to the directing system. The control signal is automatically adapted to varying track distances, so that a correct jump-wise displacement of the scanning spot is guaranteed.
申请公布号 DE2635689(A1) 申请公布日期 1977.03.03
申请号 DE19762635689 申请日期 1976.08.07
申请人 N.V. PHILIPS' GLOEILAMPENFABRIEKEN 发明人 ANTONIUS KAPPERT,HERMANUS
分类号 H04N5/85;G11B7/00;G11B7/005;G11B7/085;H04N5/76;(IPC1-7):11B7/00;11B21/08;02F1/29;04N5/76 主分类号 H04N5/85
代理机构 代理人
主权项
地址