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Document control apparatus, document control system, document control method and storage medium

  • US 6,948,122 B2
  • Filed: 11/29/2000
  • Issued: 09/20/2005
  • Est. Priority Date: 11/30/1999
  • Status: Expired due to Fees
First Claim
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1. A document control apparatus for storing and controlling electronic documents accessible from an external apparatus, comprising:

  • registering means for registering electronic documents to a storage, the electronic documents being transmitted from an external transmitting apparatus;

    period controlling means for storing information of a document control period of the electronic documents registered by said registering means;

    keeping means for keeping the electronic documents in the storage for a predetermined period even after the document control period of the electronic document has expired;

    access prohibiting means for prohibiting access from the external apparatus to the electronic document whose document control period has expired;

    period updating means for updating the document control period for an extension of the document control period based on a user confirmation;

    temporary access allowing means for allowing temporary access to the electronic document whose document control period has expired based on a predetermined charge; and

    transferring means for transferring the electronic document to the external apparatus based on a user request, wherein the transferred electronic document is a document whose document control period has not expired, a document whose document control period has been extended by said period updating means, or a document to which temporary access has been allowed by said temporary access allowing means.

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