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 |
|