公开(公告)号：US20160343394A1

公开(公告)日：2016-11-24

申请号：US15153101

申请日：2016-05-12

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshihisa TAKAHASHI ,  Hisae KATO ,  Motoshi ITO

IPC: G11B7/007

CPC classification number: G11B7/0079 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00736 ,  G11B7/00745 ,  G11B20/1217 ,  G11B27/329 ,  G11B2007/00709 ,  G11B2007/00754 ,  G11B2020/10861 ,  G11B2020/1227 ,  G11B2020/1873 ,  G11B2220/218 ,  G11B2220/235

Abstract: A write-once type information recording medium according to one aspect of the present disclosure includes at least one recording layer. In the information recording medium, the at least one recording layer has a spiral shape in which a land track and a groove track are alternately arranged as a recording track, the recording track is divided into blocks each of which being minimum unit in which recording is performed, and the information recording medium includes a management information area where management information is recorded and a user data area where user data is recorded. Each of the management information areas of both the land track and the groove track on each recording layer of the at least one recording layer is disposed at a same distance from the center of the information recording medium.

Abstract translation: 根据本公开的一个方面的一次写入型信息记录介质包括至少一个记录层。 在信息记录介质中，至少一个记录层具有螺旋形状，其中槽脊轨道和槽轨道交替地布置为记录轨道，记录轨道被划分为块，其中每个记录是记录的最小单位 并且信息记录介质包括记录管理信息的管理信息区域和记录用户数据的用户数据区域。 至少一个记录层的每个记录层上的陆地轨迹和凹槽轨迹的每个管理信息区域设置在与信息记录介质的中心相同的距离处。

公开(公告)号：US20170278541A1

公开(公告)日：2017-09-28

申请号：US15356847

申请日：2016-11-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hisae KATO ,  Yoshikazu YAMAMOTO ,  Motoshi ITO

IPC: G11B20/18 ,  G11B20/12

CPC classification number: G11B20/1889 ,  G11B20/1217 ,  G11B2020/1241

Abstract: An information recording method of recording information is provided in an information recording medium having a plurality of recording layers including a first recording layer and a second recording layer located to be closer to a surface than the first recording layer, each of the plurality of recording layers includes a user data area for recording user data, a spare area for alternatively recording data of failed recording into the user data area, and a management information area for recording management information. The first recording layer is used as a recording object layer at start of recording. When any one of the user data area, the spare area, and the management information area of the first recording layer runs short of a free space, then the recording object layer of the user data area, the spare area, and the management information area is switched over to the second recording layer.