Optical track follower device with sampling

Details Optical track follower device with sampling Optical track follower device with sampling

G - Physics

11

B

352/32.2

G11B 7/08 (2006.01) G06K 7/14 (2006.01) G11B 7/09 (2006.01)

Patent

CA 1200601

OPTICAL TRACK FOLLOWER DEVICE WITH SAMPLING ABSTRACT OF THE DISCLOSURE The invention relates to devices for optically transcribing in a track carried by a support medium data to be written in or read out. The invention provides a pre-engraved track follower device for a transcription device in which a loop for radial control of the reading spot scanning the track is provided with sampling means taking samples during scanning of nonpost-engraved parts of a pre-engraved track, said scanning corresponding to a data write or read phase. The invention applies more particularly to digital data transcription devices using a single spot for locating a pre-engraved track and for optically writing data therein.

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