发明名称 Technique for certifying disk recording surface
摘要 Techniques for certifying recording sites (bit sites) on magnetic recording disks wherein test recording patterns are recorded along disk tracks: first in an analog mode, then in a digital mode; concluding in a full digital test that simulates customer operation.
申请公布号 US5047874(A) 申请公布日期 1991.09.10
申请号 US19890332637 申请日期 1989.03.31
申请人 UNISYS CORP. 发明人 YOMTOUBIAN, RUBEN
分类号 G11B20/02;G11B20/18 主分类号 G11B20/02
代理机构 代理人
主权项
地址