Abstract:
The present invention relates to a method for certifying and subsequently authenticating original physical or digital documents. The concept of the evidence lies in the dual nature of a physical information item and a digital information item, one being the reference for the other that cannot lie amended at the risk of the evidence being lost. For a physical original document (8) associated with a bubble seal (7) there is a corresponding time-and-date-stamped, proprietary paperless reference counterpart. For a time-and-date-stamped, proprietary digital original document (15) there is a corresponding reference counterpart in the form of a bubble seal (7).
Abstract:
An image processing device of the present invention includes a management section for storing an authentication level set in accordance with the volume of image processing which is predicted in accordance with at least one of day and time. When a request for image processing to image data is made, an authentication section changes the authentication level for user authentication in accordance with at least one of day and time. Then, in accordance with this authentication result, requested image processing is performed.
Abstract:
A visible digital watermark is applied to output images from a computer program. Various attributes of the watermark are modified from image to image, making the watermark difficult to remove. For example, a watermark indicating “not for commercial use” can be applied to all output images from the program. Such watermarking permits full functioning demonstration versions of the computer program to be freely distributed to users while commercial use is inhibited. This is accomplished by a minimal level of intrusiveness to file sharing capabilities between a commercial version of the software and a non-commercial version of the software.
Abstract:
A system for watermarking and distributing material includes a data processing apparatus, which operates as a watermark encoder. The data processing apparatus is operable to process an original material item to form a reduced-bandwidth-version of the material item, marked with a code word from a predetermined set of code words. The data processing apparatus is operable to form an impaired version of the material item from which a marked representation of the original material item can be formed. The impaired version is formed by subtracting the reduced-bandwidth-version of the material item from a copy of the original material item. As such, the impaired version can be mass distributed, but a representation of the original material item cannot be formed without the reduced-bandwidth-version of the material item. By watermarking the reduced-bandwidth-versions, a representation of the material item, formed by combining one of the marked reduced-bandwidth-versions with the impaired material item, can be uniquely identified. However, only a low bandwidth part of the material item need be watermark encoded, which is more easily distributable to individual recipients than watermarked copies of the original material item.
Abstract:
A print device includes a print data acquisition unit that acquires print data having a plurality of signature attachment areas defined thereon, each signature attachment area having electronic signature data produced therefor and attached thereto, a range data acquisition unit that acquires data indicative of a range of a print target area defined on the print data, and a verification unit that verifies, before completion of acquisition of the print data by the print data acquisition unit, the electronic signature data attached to the signature attachment area containing at least a part of the print target area.
Abstract:
A computer is provided with an application and a printer driver. A user of the computer generates image data using the application. When the image data is for a plurality of pages, the user selects a desired watermark for each of the plurality of pages. The printer driver converts the image data into print data, and combines selected watermarks with the print data for corresponding pages, thereby generating updated print data. The updated print data is output as a single print job to the printer. The printer executes printing operations based on the print job so as to print an image on a plurality of pages, each formed with a corresponding watermark.
Abstract:
A visible digital watermark is applied to output images from a computer program. Various attributes of the watermark are modified from image to image, making the watermark difficult to remove. For example, a watermark indicating “not for commercial use” can be applied to all output images from the program. Such watermarking permits full functioning demonstration versions of the computer program to be freely distributed to users while commercial use is inhibited. This is accomplished by a minimal level of intrusiveness to file sharing capabilities between a commercial version of the software and a non-commercial version of the software.
Abstract:
A digitized signal is published with a blank watermark, i.e., a watermark which contains no specific watermark data, and a server computer system encodes specific watermark data into the watermark signal for each delivery of the digitized signal. A basis signal which is used to watermark a digitized signal is predetermined to enable embedding of transaction-specific watermark data to be embedded in the subject signal with minimal processing resources. Since the basis signal generally accounts for the majority of the processing resources required to watermark the subject signal, only a relatively small portion of the requisite processing resources are used to embed transaction-specific watermark into the subject signal.
Abstract:
A document management method is disclosed. The method includes generating and merging a unique watermark for and with each page of a print job to be produced. For each watermark, data identifying the watermark is associated with data identifying a document page corresponding to the print job page with which that watermark is merged.
Abstract:
A visible digital watermark is applied to output images from a computer program. Various attributes of the watermark are modified from image to image, making the watermark difficult to remove. For example, a watermark indicating “not for commercial use” can be applied to all output images from the program. Such watermarking permits full functioning demonstration versions of the computer program to be freely distributed to users while commercial use is inhibited. This is accomplished by a minimal level of intrusiveness to file sharing capabilities between a commercial version of the software and a non-commercial version of the software.