Patents by Inventor Paulus G. P. Weijenbergh

Paulus G. P. Weijenbergh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Zoned record carrier
    Patent number: 5418773
    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.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: May 23, 1995
    Assignees: International Business Machines Corporation, U.S. Philips Corporation
    Inventors: Johannus L. Bakx, Paulus G. P. Weijenbergh, Karl A. Belser, Glen A. Jaquette, John E. Kulakowski, Judson A. McDowell, Rodney J. Means