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Method of controlling information on data links and apparatus for controlling information on data links

  • US 5,717,917 A
  • Filed: 02/07/1995
  • Issued: 02/10/1998
  • Est. Priority Date: 03/04/1994
  • Status: Expired due to Fees
First Claim
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1. A method of controlling information on data links, comprising the steps of:

  • creating a data layer composed of a plurality of data blocks;

    creating a link layer which holds link information about link relationships among said plurality of data blocks in said data layer; and

    read locking a data block when a user refers to a data block in said data layer so that other users can read the data block and cannot modify the data block, and other users can read and modify the link information in said link layer which corresponds to the data block being referred to.

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