×

INFORMATION STORAGE AND RETRIEVAL SYSTEM

  • US 3,729,712 A
  • Filed: 02/26/1971
  • Issued: 04/24/1973
  • Est. Priority Date: 02/26/1971
  • Status: Expired due to Term
First Claim
Patent Images

1. In an information storage and retrieval system comprising means for recording data bits on and reading data bits from a storage medium having a plurality of continuous recording tracks, each of said tracks having an area void of data bits preceding the position at which recording and reading of said data bits commence and being of sufficient length for recording a plurality of records in non-overlapping relation, each record including a number of data blocks comprising a plurality of said data bits serially arranged between respective data gaps;

  • a device for locating a track on which the data blocks of at least one of said records can be recorded, said device comprising;

    means for moving said recording and reading means and said storage medium relative to one another;

    means operatively associated with said recording and reading means for sequentially searching said tracks and for generating a control signal when the first one of said tracks is located on which the last data block of a record has been recorded; and

    means responsive to said control signal for rendering said recording and reading means operative for recording the data bits comprising said data blocks in said first one of said tracks immediately following the data gap associated with said last data block as said recording and reading means and storage medium continue to move relative to each other.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×