The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 1995
Filed:
Jul. 02, 1993
Johannus L Bakx, Eindhoven, NL;
Paulus G Weijenbergh, Eindhoven, NL;
Karl A Belser, San Jose, CA (US);
Glen A Jaquette, Tucson, AZ (US);
John E Kulakowski, Tucson, AZ (US);
Judson A McDowell, Tucson, AZ (US);
Rodney J Means, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
U.S. Philips Corporation, New York, NY (US);
Abstract
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.