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专利名称：Apparatus for reading a record carrier in
which information, for example video and/oraudio information, is recorded in at least onetrack
发明人：Gijsbertus Bouwhuis申请号：US05/568708申请日：19750416公开号：US04010317A公开日：19770301
摘要：An apparatus for reading a record carrier in which information, for examplevideo and/or audio information, is recorded in at least one track is described. By means ofa detection system which comprises two radiation-sensitive detection elements which,viewed in the direction of length of the track, are arranged one behind the other so thatthey intercept two different parts of a radiation beam which has been modulated by theinformation of the track, positional errors of the plane of the track relative to a signaldetection system can be detected.
申请人：U.S. PHILIPS CORPORATION
代理人：Frank R. Trifari,Simon L. Cohen
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