Optical information recording and/or reproducing apparatus and m

Details Optical information recording and/or reproducing apparatus and m Optical information recording and/or reproducing apparatus and m

1998-06-29

1999-11-23

Ramirez, Nestor

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

318116, H01L 4104, H02N 706

Patent

active

059905964

ABSTRACT:
An information recording and/or reproducing apparatus, for performing recording and/or reproduction of information on a recording medium with a light beam emitted from an optical head, includes a vibration wave driving device for relatively moving the optical head to the medium, and a device for detecting information corresponding to a relation between a control signal for driving the vibration wave driving device and a relative movement velocity in the relative movement. The vibration wave driving device is controlled based on the information detected.

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patent: 5272688 (1993-12-01), Horiguchi
patent: 5384507 (1995-01-01), Takada et al.
patent: 5461273 (1995-10-01), Kawasaki et al.
patent: 5557156 (1996-09-01), Elings
patent: 5568003 (1996-10-01), Deck
patent: 5714831 (1998-02-01), Walker et al.
patent: 5805540 (1998-09-01), Kitai et al.
European Search Report dated Mar. 14, 1996.

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