Apparatus for reading information from a record carrier
作者： Rosmalen Gerard E. Van , Alfen Maarten R.H. Van , Petrus L.A. Rouws , Johannes H.H. Janssen
DOI:
关键词: Electronic speed control 、 Tracking (particle physics) 、 Angular acceleration 、 Transducer 、 Servo control 、 Vibration 、 Acoustics 、 Compact disc 、 Physics 、 Reading (computer)
摘要: ABSTRACT: Apparatus for reading information from a record carrier. In addition to the customary servo control de-vices (15, 18 and 21) radial tracking, focussing speed respectively an apparatus reading, example, Compact Disc (3) comprises three feed-forward loops (30, 40 50) which each comprise acce-leration transducer (31, 41 51) in case of shocks vibrations give optical read unit (5) same angular acceleration, linear acceleration motor (2) as (1) itself, so that is less sensitive vibrations. Fig. 1.
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