The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 2006
Filed:
Jul. 13, 2005
Harukazu Miyamoto, Kodaira, JP;
Yoshio Suzuki, Fujisawa, JP;
Motoyuki Suzuki, Yokohama, JP;
Hisataka Sugiyama, Kodaira, JP;
Hiroyuki Minemura, Yokohama, JP;
Tetsuya Fushimi, Chigasaki, JP;
Nobuhiro Tokushuku, Yokohama, JP;
Harukazu Miyamoto, Kodaira, JP;
Yoshio Suzuki, Fujisawa, JP;
Motoyuki Suzuki, Yokohama, JP;
Hisataka Sugiyama, Kodaira, JP;
Hiroyuki Minemura, Yokohama, JP;
Tetsuya Fushimi, Chigasaki, JP;
Nobuhiro Tokushuku, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A reproducing apparatus for reproducing information recorded on an optical recording medium including a disk-like substrate, a spiral or concentric-shaped groove structure along a track formed on the substrate, and the groove structure being wobbled in a radial direction of the medium. The track is divided into a plurality of recording units in the track direction by at least one radial boundary line formed by a dropout portion, wherein identification information is disposed in the track at a head of each recording unit at the dropout portion. The apparatus includes an irradiation source for irradiating a light spot on the optical recording medium, an optical detector for detecting a reflected light from the medium, and a reproducer for reproducing information by using a signal from the detector.