公开(公告)号：AT168810T

公开(公告)日：1998-08-15

申请号：AT93308911

申请日：1993-11-08

Applicant: IBM

Inventor： BELSER KARL ARNOLD ,  HURST JERRY ELDEN ,  MADISON MICHAEL RICHARD

IPC: G11B7/00 ,  G11B7/0045 ,  G11B11/105 ,  G11B20/14 ,  G11B7/125 ,  G11B11/10

Abstract: An optical data storage system records pulse width modulated data as a series of contiguous and overlapping circular marks. A minimum number of circular marks are used to record the desired run length. Circular marks which overlap by greater or equal to one half the diameter of the circular mark are recorded using two different laser power levels. The result is that thermal buildup in the medium is kept to a minimum and the edge transitions are accurately positioned.

公开(公告)号：DE69319845T2

公开(公告)日：1999-03-25

申请号：DE69319845

申请日：1993-11-08

Applicant: IBM

Inventor： BELSER KARL ARNOLD ,  HURST JERRY ELDEN ,  MADISON MICHAEL RICHARD

IPC: G11B7/00 ,  G11B7/0045 ,  G11B11/105 ,  G11B20/14 ,  G11B7/125 ,  G11B11/10

Abstract: An optical data storage system records pulse width modulated data as a series of contiguous and overlapping circular marks. A minimum number of circular marks are used to record the desired run length. Circular marks which overlap by greater or equal to one half the diameter of the circular mark are recorded using two different laser power levels. The result is that thermal buildup in the medium is kept to a minimum and the edge transitions are accurately positioned.

公开(公告)号：DE69319845D1

公开(公告)日：1998-08-27

申请号：DE69319845

申请日：1993-11-08

Applicant: IBM

Inventor： BELSER KARL ARNOLD ,  HURST JERRY ELDEN ,  MADISON MICHAEL RICHARD

IPC: G11B7/00 ,  G11B7/0045 ,  G11B11/105 ,  G11B20/14 ,  G11B7/125 ,  G11B11/10

Abstract: An optical data storage system records pulse width modulated data as a series of contiguous and overlapping circular marks. A minimum number of circular marks are used to record the desired run length. Circular marks which overlap by greater or equal to one half the diameter of the circular mark are recorded using two different laser power levels. The result is that thermal buildup in the medium is kept to a minimum and the edge transitions are accurately positioned.