×

Multiple independently positionable recording-reading head disk system

  • US 4,972,396 A
  • Filed: 10/24/1988
  • Issued: 11/20/1990
  • Est. Priority Date: 10/24/1988
  • Status: Expired due to Fees
First Claim
Patent Images

1. A multiple independently positionable recording-reading head optical disk system comprising:

  • a rotatable optical disk having an arrangement of data elements on a data reading and recording surface of the disk;

    a plurality of recording-reading head means for reading and writing data onto the recording surface of the optical disk, each of the head means having a means for focusing; and

    a plurality of transporting means, one associated with each one of the recording-reading head-means for moving its associated head means over one side of the optical disk to selectively position the associated 3 head means relative to said recording surface, each of the transporting means being movable independently of the other transporting means to enable each of the recording-reading head means to be selectively positioned for performing data operations including reading data recorded on the recording surface and writing data onto the recording surface of the optical disk, independently of the other recording-reading head means, and further to enable the recording-reading head means to perform data operations simultaneously.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×