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:
Sep. 03, 2013
Filed:
Jun. 10, 2010
Goro Fujita, Kanagawa, JP;
Daisuke Ueda, Kanagawa, JP;
Mitsuaki Oyamada, Kanagawa, JP;
Takashi Iwamura, Kanagawa, JP;
Kimihiro Saito, Kanagawa, JP;
Jingcheng Yuan, Kanagawa, JP;
Goro Fujita, Kanagawa, JP;
Daisuke Ueda, Kanagawa, JP;
Mitsuaki Oyamada, Kanagawa, JP;
Takashi Iwamura, Kanagawa, JP;
Kimihiro Saito, Kanagawa, JP;
Jingcheng Yuan, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An optical information reproducing apparatus includes: an irradiation section irradiating a light beam onto an optical information recording medium, in which holes are formed along a virtual track on a recording medium, along the virtual track; a light receiving section receiving a reflected light beam when the light beam is reflected by the optical information recording medium and sequentially generating a light receiving signal corresponding to the light intensity; a detection section detecting a variation pattern appearing when a signal level of the light receiving signal changes according to the hole; and a code string generating section, when generating a code string corresponding to the signal level, generating a code corresponding to the one hole from the variation pattern if the variation pattern falls within a range and generating a code string, which includes a plurality of codes, from the variation pattern if the variation pattern exceeds the range.