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热词
    • 2. 发明授权
    • Data recording and reproducing method
    • 数据记录和再现方法
    • US4677606A
    • 1987-06-30
    • US641176
    • 1984-08-15
    • Mikito OgataMasahito MoriTakashi DoiMichio Miyazaki
    • Mikito OgataMasahito MoriTakashi DoiMichio Miyazaki
    • G11B7/013G11B20/12G11B20/18G11B27/30G11B15/52H04N5/76
    • G11B7/24085G11B20/1252G11B20/1809G11B27/3027G11B2220/20G11B2220/2537
    • A data recording/reproducing method for a non-rewritable recording medium of a rotating type, each of tracks on the recording medium is divided into a plurality of blocks which are allotted with respective addresses. Each block includes a data recording area and a deletion flag area which is divided into a plurality of sub-areas. One of the sub-areas in a given block is associated with other block which is in a predetermined address relation with the given block. When the content in the data recording area of one block on the recording medium is to be rendered invalid, deletion flag information is also recorded in the sub-area of the other block having the predetermined address relation with the one block. Upon reading, the data of the blocks read out from the recording medium exclusive of the data of the block determined to be invalid on the basis of the flag information is transferred to a high-rank system.
    • 用于旋转型不可重写记录介质的数据记录/再现方法,记录介质上的每个磁道被分成多个分配有相应地址的块。 每个块包括被划分成多个子区域的数据记录区域和删除标志区域。 给定块中的一个子区域与与给定块处于预定地址关系的其他块相关联。 当记录介质上的一个块的数据记录区域中的内容将被无效时,删除标志信息也被记录在具有与该块的预定地址关系的另一个块的子区域中。 在读取时,除了基于标志信息确定为无效的块的数据之外,从记录介质读出的块的数据被传送到高等级系统。