Title:
多層光ディスクにおける層間ジャンプ方法および光ディスク装置
Document Type and Number:
Japanese Patent JP5587247
Kind Code:
B2
Abstract:
An optical disk apparatus according to the present invention includes: a controller 111, 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 146, which adjusts a spherical aberration correction value to the target layer and then gets the layer-to-layer jump attempted; a decision section 146 for determining whether the layer-to-layer jump has been carried out successfully; and a layer determining section 146 for 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 section 146 shifts 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.
Inventors:
Katsuya Watanabe
Yamamoto Shin-ichi
Yamamoto Shin-ichi
Application Number:
JP2011124110A
Publication Date:
September 10, 2014
Filing Date:
June 02, 2011
Export Citation:
Assignee:
Panasonic incorporated company
International Classes:
G11B7/085; G11B7/09; G11B7/126; G11B7/1392
Attorney, Agent or Firm:
Seiji Okuda
Shuichi Kita
Okabe Hidetaka
Akiko Miyake
Yamaguchi Misato
Shuichi Kita
Okabe Hidetaka
Akiko Miyake
Yamaguchi Misato