Device for detecting traveling speed of pickup

Details Device for detecting traveling speed of pickup Device for detecting traveling speed of pickup

G - Physics

11

B

G11B 21/00 (2006.01) G11B 7/085 (2006.01) G11B 21/08 (2006.01)

Patent

CA 2052100

Abstract of the Disclosure In a disk reproducing device of this invention for reading out data from a disk by means of a pickup ele- ment, a speed signal proportional to the speed of rela- tive movement between the disk and the pickup element is created in a case where the pickup element is moved in the radial direction of the disk according to a high frequency signal (RF) read out from the disk and a tracking error signal (TE) derived from the high fre- quency signal (RF).

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