Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1994-07-21
1997-09-23
Psitos, Aristotelis M.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 7312, G11B 5584, G11B 1552
Patent
active
056711000
ABSTRACT:
A tracking control method and apparatus of an image recorder/reproducer enable high performance tracking control by generating a capstan motor speed control value using a variable capstan speed command onto which a tracking error control is reflected. The method includes the steps of obtaining a tracking control value by performing a predetermined gain control on a tracking error; generating a variable capstan speed command onto which the tracking control value is reflected; determining the speed error of a capstan motor by comparing the capstan speed command and the actual rotating speed of a capstan motor; and obtaining a speed control value of a capstan motor onto which a tracking error is reflected, by performing a predetermined gain control on the speed error. The apparatus includes a tracking controller for outputting a variable capstan speed command onto which a tracking error is reflected; and a capstan speed controller for outputting a capstan speed control signal from the speed error obtained by comparing the actual capstan speed and the capstan speed command. Thus, control adaptability and tracking compatibility are enhanced, and coefficient control and system design can be performed easily.
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Neal Regina Y.
Psitos Aristotelis M.
Samsung Electronics Co,. Ltd.
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