Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiroyuki Minemura0
Hisataka Sugiyama0
Harukazu Miyamoto0
Date of Patent
December 19, 2006
Patent Application Number
11176367
Date Filed
July 8, 2005
Patent Primary Examiner
Patent abstract
An optical reproducing apparatus for reproducing information on a medium includes a light source, an optical system for irradiating a light beam generated by the light source on the medium, a detector for detecting a reflected light from the medium; and a reproducer means for reproducing information on the medium by using a signal from the detector. The medium is a substrate having grooves and lands alternately formed thereon in a radial direction, which serve as recording tracks and have prepits.
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