OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE AND OPTICAL INFORMATION RECORDING/REPRODUCING METHOD
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United States of America Patent
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Issued Date -
Dec 8, 2016
app pub date -
May 27, 2016
filing date -
May 27, 2016
priority date (Note) -
Abandoned
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Abstract
An optical information recording/reproducing device that uses a signal beam and a reference beam to record digital information on an optical information storage medium by angle multiplexing using holography includes a light source unit generating a reference beam and a signal beam, and a recording angle control unit controlling an angle of the reference beam irradiated on the optical information storage medium in an angle direction in which the angle multiplexing recording is performed. The reference beam is irradiated on an unrecorded portion of the optical information storage medium when an incident angle of the reference beam is being changed by the recording angle control unit, and thereafter, the signal beam and the reference beam are irradiated on the optical information storage medium to record the digital information.
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