Invention Grant
US07990808B2 Performing error-free access operation on multi-layered disc 有权
在多层光盘上执行无错误的访问操作

  • Patent Title: Performing error-free access operation on multi-layered disc
  • Patent Title (中): 在多层光盘上执行无错误的访问操作
  • Application No.: US11663509
    Application Date: 2005-10-14
  • Publication No.: US07990808B2
    Publication Date: 2011-08-02
  • Inventor: Yoshiyuki Sasaki
  • Applicant: Yoshiyuki Sasaki
  • Applicant Address: JP Tokyo
  • Assignee: Ricoh Company, Ltd.
  • Current Assignee: Ricoh Company, Ltd.
  • Current Assignee Address: JP Tokyo
  • Agency: Dickstein Shapiro LLP
  • Priority: JP2004-302568 20041018
  • International Application: PCT/JP2005/019350 WO 20051014
  • International Announcement: WO2006/043648 WO 20060427
  • Main IPC: G11B5/09
  • IPC: G11B5/09
Performing error-free access operation on multi-layered disc
Abstract:
A method of reproducing information recorded on an optical disc having a plurality of recording layers inclusive of a first recording layer and a second recording layer includes the steps of referring to an order of recording of the first recording layer and the second recording layer according to which information is recorded in a prerecorded area of the optical disc, and selecting a scan path in response to the order of recording, from a first scan path including no seek operation preceding a focus jump and a second scan path including a seek operation preceding a focus jump, to scan an optical spot from a first address in the first recording layer to a second address in the second recording layer through scanning along the prerecorded area in at least one of the first recording layer and the second recording layer.
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