首页>
外国专利>
FORMAT FOR DATA-STORING DISK MEDIA WHEREIN ADDRESSABLE TRACK ANGULAR LENGTH IS INDEPENDENT FO DISK REVOLUTIONS
FORMAT FOR DATA-STORING DISK MEDIA WHEREIN ADDRESSABLE TRACK ANGULAR LENGTH IS INDEPENDENT FO DISK REVOLUTIONS
展开▼
机译:可存储轨迹角长度独立于磁盘革命的数据存储磁盘媒体的格式
展开▼
页面导航
摘要
著录项
相似文献
摘要
DATA-STORING DISKS (30), PREFERABLY EACH DISK HAVING A SINGLE SPIRAL TRACK, HAVE ADDRESSABLE TRACKS (124) THAT ARE INDEPENDENT OF THE LENGTH OF DISK OR SPIRAL TRACK REVOLUTIONS (121). EACH REVOLUTION MAY CONTAIN A NON-INTEGRAL NUMBER OF ADRESSABLE TRACKS AND SECTORS (144). AN OPTICAL DISK IS USED TO DESCRIBE THE INVENTION. THE CIRCUMFERENTIAL LOCATION OF THE TRACKS AND SECTORS PRECESS CIRCUMFERENTIALLY. A PLURALITY OF RADIALLY DISPOSED REVOLUTION BANDS (101-106) EACH CONTAIN A FIXED NUMBER OF THE REVOLUTIONS AN INCREASING NUMBER OF THE ADDRESSABLE TRACKS IN THE RADIALLY OUTER MORE ONES OF THE BANDS. IT IS PREFERRED THAT THE NUMBER OF BANDS BE 2N, WHERE N IS AN INTEGER. EACH BAND IS DIVIDED INTO A PLURALITY OF REVOLUTION GROUPS (110-114), EACH GROUP HAVING A FIXED NUMBER OF REVOLUTIONS. EACH GROUP IN A BAND HAS A LIKE NUMBER OF THE ADDRESSABLE TRACKS. A SO-CALLED ANCHOR SECTOR (115) HAS ONE END ANCHORED TO A REFERENCE CIRCUMFERENTIAL POSITION (100) ON THE DISK. EACH REVOLUTION GROUP BEGINS WITH AN ANCHOR SECTOR, ALL OTHER SECTORS IN THE GROUP ARE POSITIONED CIRCUMFERENTIALLY WITH RESPECT TO THE ANCHOR SECTOR. ADDRESSABLE TRACK SEEKING, ALTERNATE EMBODIMENTS AND FABRICATION OF A DISK ARE DESCRIBED. (FIG.3)
展开▼