Method for searching a digital rights management package
First Claim
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1. A method for preparing a document for review, the method comprising the steps of:
- creating an index of the document;
removing contextual information from the index so that the index does not reveal the context of the document that may be searched;
removing sensitive words from the index;
removing key words from the index;
randomizing the order of words in the index; and
randomizing the frequency information in the index so that the significance of a particular key word may not be determined; and
encrypting the full text of the document.
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Abstract
A method that allows a search engine to find a document and allows a potential buyer to review portions of the document. The invention provides a plain text index to the document that may be searched by internet engines and reviewed by potential buyers of the document. The full text of the document remains encrypted and managed by a Digital Rights Management (DRM) package. The index is synchronized and hides contextual information so that potential buyers may determine whether they want to obtain rights to review the document.
90 Citations
6 Claims
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1. A method for preparing a document for review, the method comprising the steps of:
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creating an index of the document;
removing contextual information from the index so that the index does not reveal the context of the document that may be searched;
removing sensitive words from the index;
removing key words from the index;
randomizing the order of words in the index; and
randomizing the frequency information in the index so that the significance of a particular key word may not be determined; and
encrypting the full text of the document. - View Dependent Claims (2, 3, 4, 5, 6)
allowing potential buyers to review the index so that the buyers may determine whether or not they want to obtain rights to review the document.
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3. The method claimed in claim 1, wherein
search engines are used for electronic searching of the index. -
4. The method claimed in claim 1, wherein
the full text of the document remains encrypted and managed by a Digital Rights Management package. -
5. The method claimed in claim 1, further including the step of:
maintaining synchronization of the document in the index by having the document and the index in the same file.
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6. The method claimed in claim 1, wherein
sensitive regions of the document containing sensitive words are marked prior to the production of the index.
Specification
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Current AssigneePitney Bowes Incorporated (Böwe Systec AG)
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Original AssigneePitney Bowes Incorporated (Böwe Systec AG)
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InventorsRomansky, Brian M., Foth, Thomas J.
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Primary Examiner(s)Kindred, Alford W.
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Application NumberUS09/624,671Time in Patent Office967 DaysField of Search707/200, 707/2-9, 707/1, 707/205, 707/500, 707/515, 707/526, 707/529-538, 713/161-168, 713/182-184, 713/187-191, 380/239US Class Current1/1CPC Class CodesG06F 16/951 Indexing; Web crawling tech...G06F 16/953 Querying, e.g. by the use o...Y10S 707/99932 Access augmentation or opti...
