TRACK SEEK METHOD AND DEVICE FOR USE WITH AN OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS

A position detector (11, 12) detects a relative position of an optical head (2) to a recording medium (1), and on the basis of the thus-detected relative position, a position detection signal (D) is generated in response to movement of a light beam (6) over a predetermined distance. Then, in respons...

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Bibliographische Detailangaben
Hauptverfasser: YAMAZAKI, KOICHI, YOSHIHARA, KENZOU, NODA, KAZUO
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:A position detector (11, 12) detects a relative position of an optical head (2) to a recording medium (1), and on the basis of the thus-detected relative position, a position detection signal (D) is generated in response to movement of a light beam (6) over a predetermined distance. Then, in response to the position detection signal, a comparison is made between the number (Na) of track crossing counted for the predetermined movement distance on the basis of reception of reflection of the light beam (6), and a predetermined reference value (Nb) for the predetermined movement distance. Then, track crossing count compensation data (Nc) is generated which corresponds to a difference between the counted number of track crossing and the reference value, and the counted number of track crossing is corrected by use of such compensation data.