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:
Oct. 09, 2012
Filed:
Jun. 03, 2011
Katsuya Watanabe, Nara, JP;
Shinichi Yamamoto, Osaka, JP;
Katsuya Watanabe, Nara, JP;
Shinichi Yamamoto, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An optical disk apparatus according to the present invention includes: a controller, which receives an instruction that a layer-to-layer jump be performed from a current layer to a target layer; a layer-to-layer jump control section, which adjusts a spherical aberration correction value to the target layer and then gets the layer-to-layer jump attempted; a decision sectionfor determining whether the layer-to-layer jump has been carried out successfully; and a layer determining sectionfor determining, if the focus position has been set on a non-target storage layer as a result of the layer-to-layer jump, where the non-target storage layer is located in the optical disk. The layer-to-layer jump control sectionshifts the focus position of the light beam from that non-target storage layer to the target layer by reference to information indicating which of the multiple storage layers the non-target storage layer is.