Apparatus for optically recording and reproducing information

Details Apparatus for optically recording and reproducing information Apparatus for optically recording and reproducing information

G - Physics

11

B

G11B 7/00 (2006.01) G11B 7/0033 (2006.01) G11B 7/09 (2006.01) G11B 19/02 (2006.01)

Patent

CA 2077950

An apparatus for optically recording and reproducing information with high accuracy is provided which can deal with a change in the operating conditions of the signal processing systems. The apparatus having a light beam generator, an information signal processing system including an amplifier, and a servo control signal processing system including an amplifier, for optically recording and reproducing information to and from an optical information storage medium while reciprocally moving the storage medium back and forth and applying a light beam from the light beam generator to the storage medium, including: a holding circuit provided between the input and output terminals of each of the amplifiers, the holding circuit being connected to and disconnected from each of the amplifiers; a generator for generating a first period signal representative of an initial stationary period of the storage medium during the reciprocal movement and a second period signal representative of a stop period of the storage medium at the turning point of the reciprocal movement; a controller for turning off the light beam generator in response to the first period signal; and a switching unit for connecting the holding circuit between the input and output terminals of each of the amplifiers in response to the second period signal.

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