×

Tracking marked documents

  • US 9,002,909 B2
  • Filed: 04/27/2006
  • Issued: 04/07/2015
  • Est. Priority Date: 04/27/2005
  • Status: Active Grant
First Claim
Patent Images

1. A method of controlling data processing, the method comprising:

  • transmitting a message from an originating user to a recipient;

    receiving one or more originator preferences relating to data transmitted in the message, wherein the originator preferences have been input by the originating user and the originator preferences are configured to restrict one or more requesting users'"'"' processing of the data;

    forming a data digest of the data, wherein the data digest comprises storage requirements that are less than or equal to the data;

    storing, separate from the data, the originator preferences and the data digest;

    in response to receiving a request from a requesting user to process a file that includes file data;

    forming a file digest of the file data, wherein the file digest comprises storage requirements that are less than or equal to the file data;

    comparing the file digest to the data digest to identify whether the file data satisfies a test for similarity with the data; and

    in response to determining that the file data satisfies the test;

    determining an identity of the requesting user;

    determining from the originator preferences whether the requesting user has been restricted from processing the data by the originator preferences; and

    permitting the requesting user to process the file data only if the requesting user'"'"'s requested processing is permitted by the originator preferences.

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