A record carrier having essentially circular tracks concentrically located around a point of rotation. The record carrier is divided into circular zones each having m tracks, where m is an integer. Each track within a zone is subdivided into n sectors, where n is an integer which is constant per zone and which increases as the zone is more remote from the point of rotation. Each sector including a header portion and a data portion. The header portions in the radial direction in each zone are in line. In each zone the condition of m*n=j*k is satisfied, where is j an integer greater than or equal to 2 and is constant for each zone, and k is an integer.
申请公布号
US5418773(A)
申请公布日期
1995.05.23
申请号
US19930086960
申请日期
1993.07.02
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION;U.S. PHILIPS CORPORATION
发明人
BAKX, JOHANNUS L.;WEIJENBERGH, PAULUS G. P.;BELSER, KARL A.;JAQUETTE, GLEN A.;KULAKOWSKI, JOHN E.;MCDOWELL, JUDSON A.;MEANS, RODNEY J.