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1. 发明公开

EP0341852A2 High efficiency disk format and synchronization system 失效
标题翻译：平台式计算机系统zur同步。
公开(公告)号：EP0341852A2
公开(公告)日：1989-11-15
申请号：EP89304048.5
申请日：1989-04-24
申请人： QUANTUM CORPORATION
发明人： Leis, Michael D. , Leshay, Bruce , Muchnik, Michael , Rege, Satish , Riggle, Charles Michael , Weng, Lih-Jyh
IPC分类号： G11B5/596 , G11B27/30 , G11B20/12
CPC分类号： G11B27/3027 , G11B5/59633 , G11B20/1217 , G11B2020/1282 , G11B2220/20
摘要： A disk drive system provides all required synchronization, positioning, validation, and data functions within each disk sector. All of these functions are provided within two zones, a header section and a data section. The header section includes a preamble, a synchronization character and an address field, as well as servo information for track following. The data section of each sector includes a data preamble, a data synchronization character, a bad sector bit map, the data and data redundancy information. The header section of at least one sector in a track includes a short DC-erase field, a transitionless segment which is used in synchronization. To synchronize a read/write head to the disk, the system first detects the DC-erase field. The system next searches for the header preamble and synchronization character. If it finds them within predetermined times, it then looks for a valid sector address to complete the synchronization. If the system does not detect the preamble and synchronization character within the predetermined times, it looks for another DC-erase field and continues the synchronization process. After the preamble and synchronization character are found, the desired sector is located by reading the addresses of the succeeding sectors.
摘要翻译：磁盘驱动器系统在每个磁盘扇区内提供所有必需的同步，定位，验证和数据功能。所有这些功能都在两个区域内提供，即标题部分和数据部分。报头部分包括前导码，同步字符和地址字段，以及跟踪跟踪的伺服信息。每个扇区的数据部分包括数据前导码，数据同步字符，坏扇区位图，数据和数据冗余信息。轨道中的至少一个扇区的报头部分包括短的直流擦除字段，同步使用的无转换段。要将读/写头同步到磁盘，系统首先检测直流擦除字段。系统接下来搜索标题前同步码和同步字符。如果它在预定时间内找到它们，则它会查找有效的扇区地址来完成同步。如果系统在预定时间内没有检测到前导码和同步字符，则寻找另一个直流擦除字段并继续进行同步处理。在找到前导码和同步字符之后，通过读取后续扇区的地址来定位所需的扇区。

2. 发明授权

EP0341852B1 High efficiency disk format and synchronization system 失效
标题翻译：具有高效率和系统同步磁盘格式
公开(公告)号：EP0341852B1
公开(公告)日：1998-01-07
申请号：EP89304048.5
申请日：1989-04-24
申请人： QUANTUM CORPORATION
发明人： Leis, Michael D. , Leshay, Bruce , Muchnik, Michael , Rege, Satish , Riggle, Charles Michael , Weng, Lih-Jyh
IPC分类号： G11B5/596 , G11B27/30 , G11B20/12
CPC分类号： G11B27/3027 , G11B5/59633 , G11B20/1217 , G11B2020/1282 , G11B2220/20

3. 发明公开

EP0341852A3 High efficiency disk format and synchronization system 失效
标题翻译：高效率磁盘格式化和同步系统
公开(公告)号：EP0341852A3
公开(公告)日：1991-12-27
申请号：EP89304048.5
申请日：1989-04-24
申请人： QUANTUM CORPORATION
发明人： Leis, Michael D. , Leshay, Bruce , Muchnik, Michael , Rege, Satish , Riggle, Charles Michael , Weng, Lih-Jyh
IPC分类号： G11B5/596 , G11B27/30 , G11B20/12
CPC分类号： G11B27/3027 , G11B5/59633 , G11B20/1217 , G11B2020/1282 , G11B2220/20
摘要： A disk drive system provides all required synchronization, positioning, validation, and data functions within each disk sector. All of these functions are provided within two zones, a header section and a data section. The header section includes a preamble, a synchronization character and an address field, as well as servo information for track following. The data section of each sector includes a data preamble, a data synchronization character, a bad sector bit map, the data and data redundancy information. The header section of at least one sector in a track includes a short DC-erase field, a transitionless segment which is used in synchronization. To synchronize a read/write head to the disk, the system first detects the DC-erase field. The system next searches for the header preamble and synchronization character. If it finds them within predetermined times, it then looks for a valid sector address to complete the synchronization. If the system does not detect the preamble and synchronization character within the predetermined times, it looks for another DC-erase field and continues the synchronization process. After the preamble and synchronization character are found, the desired sector is located by reading the addresses of the succeeding sectors.

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