Invention Grant
- Patent Title: Track jumping scan control device and track searching device
- Patent Title (中): 跟踪跳跃扫描控制装置和跟踪搜索装置
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Application No.: US11598822Application Date: 2006-11-14
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Publication No.: US07885150B2Publication Date: 2011-02-08
- Inventor: Shinichi Yamada , Kiyoshi Masaki , Kazuhiko Miyazaki
- Applicant: Shinichi Yamada , Kiyoshi Masaki , Kazuhiko Miyazaki
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2005-328651 20051114
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
In a track jumping scan control device wherein an optical beam is irradiated on an optical disc provided with a header region capable of a mark-recording operation with respect to both of land and groove tracks adjacent in a radial direction of the disc and comprising prepits, and a signal based on a reflected light resulting therefrom is used to make the optical beam jumping-scan with respect to a predetermined track, a full track jumping scan for making the optical beam track-jump between the land tracks or the groove tracks or a half track jumping scan for making the optical beam track-jump from the land track to the groove track or from the groove track to the land track is executed as the track jumping scan. Which of the two track jumping scans is executed is selected in accordance with a cycle at which the header region is set.
Public/Granted literature
- US20070115768A1 Track jumping scan control device and track searching device Public/Granted day:2007-05-24
Information query
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