| 摘要 |
The invention relates to a device for the protected output of an electronically transmitted and stored document which is provided with or which is subject to electronic copy protection, comprising a storage unit provided on a local computer system, for storing the document and preparing it for output, a local processing and control unit which co-operates with the storage unit and with an external data processing installation by way of a data communication network, the processing and control unit being such that an additional operation and/or additional data can be linked to the document as a reaction to at least one online contact by way of the data communication network, and the linked document can be processed for output, an output unit which is connected to the local processing and control unit and which is adapted for appropriate output of the linked document, and an interrogation and checking unit which co-operates with the storage unit and the processing and control unit and which is adapted to detect a violation and/or override of the document copy protection and as a reaction to such a violation and/or override prevents production of the linked document by the processing and control unit. |
