Source: http://www.google.com/patents/US7881467?dq=7,752,326
Timestamp: 2017-07-23 22:09:33
Document Index: 139819513

Matched Legal Cases: ['art 101', 'art 102', 'art 103', 'art 104', 'art 105', 'art 106', 'art 107', 'art 107', 'art 106', 'art 107', 'art 108', 'art 108', 'art 106']

Patent US7881467 - Image forming apparatus and electronizing method for information mentioned ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsAn image forming apparatus configured to generate image data by reading information in a paper, includes a machine signature generation part configured to generate a first electronic signature for the image data by using a secret key peculiar to the image forming apparatus, and an operator signature...http://www.google.com/patents/US7881467?utm_source=gb-gplus-sharePatent US7881467 - Image forming apparatus and electronizing method for information mentioned in paperAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS7881467 B2Publication typeGrantApplication numberUS 11/184,944Publication dateFeb 1, 2011Filing dateJul 20, 2005Priority dateJul 21, 2004Fee statusPaidAlso published asUS20060020808Publication number11184944, 184944, US 7881467 B2, US 7881467B2, US-B2-7881467, US7881467 B2, US7881467B2InventorsMasuyoshi Yachida, Yoichi KanaiOriginal AssigneeRicoh Company, Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (22), Referenced by (2), Classifications (11), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetImage forming apparatus and electronizing method for information mentioned in paper
US 7881467 B2Abstract
An image forming apparatus configured to generate image data by reading information in a paper, includes a machine signature generation part configured to generate a first electronic signature for the image data by using a secret key peculiar to the image forming apparatus, and an operator signature generation part configured to generate a second electronic signature for the image data by using a secret key peculiar to an operator of the image forming apparatus.
Accordingly, it is a general object of the present invention to provide a novel and useful image forming apparatus and electronizing method for information mentioned in a paper.
Another and more specific object of the present invention is to provide an image forming apparatus and electronizing method for information mentioned in a paper whereby originalities of image data generated based on information mentioned in a paper (hereinafter “paper information”) can be improved.
FIG. 1 is a schematic view showing an example of a functional structure of a scanning apparatus of a first embodiment of the present invention;
A description of the present invention and details of drawbacks of the related art are now given, with reference to FIG. 1 through FIG. 21, including embodiments of the present invention.
FIG. 1 is a schematic view showing an example of a functional structure of a scanning apparatus of a first embodiment of the present invention. As shown in FIG. 1, a scanning apparatus 10 includes a scanning part 101, a user interface part 102, a card input/output part 103, a machine signature part 104, a user signature part 105, a data storage part 106, and a stored data delivery part 107.
The stored data delivery part 107 delivers the image data stored in the data storage part 106 to a designated delivery opponent such as an external apparatus 20. Here, the meaning of “deliver” includes file transferring or electronic mail transferring via a network. The stored data delivery part 107 delivers the machine signature to the image data, the user signature, the machine public key certificate and the user public key certificate together with the image data to the designated delivery opponent. The external apparatus 20 stores, for example, the image data generated by the scanning apparatus 10 based on the paper document 30, the machine signature, the user signature, the machine public key certificate, and the user public key certificate, and others. A file server, for example, for opening the image data and others to the user corresponds to the external apparatus 20.
Meanwhile, it is not always necessary to generate the machine signature and the user signature at the same machine. Because of this, an example where a machine for generating the machine signature and a machine for generating the user signature are separately provided is discussed in the second embodiment of the present invention.
Next, as a third embodiment of the present invention, an example where the user signature is generated based on the user's confirmation about the contents of the image data obtained by scanning the paper document 30 is discussed. FIG. 8 is a schematic view showing an example of a functional structure of a scanning apparatus of a third embodiment of the present invention. In FIG. 8, parts that are the same as the parts shown in FIG. 1 are given the same reference numerals, and explanation thereof is omitted. A data display part 108 is newly added in the example shown in FIG. 8. The data display part 108 displays the image data stored in the data storage part 106.
Meanwhile, for electronization of the paper document, it is required to electronize (put into electronic form) the paper document immediately after the original of the paper document is obtained. Therefore, a time gap between the date and time when the original is obtained and the date and time when the document is scanned may be a problem. For example, it can be assumed that some intentional behavior may have happened if the date and time when the document is scanned is prior to or extremely soon after the date and time mentioned in the paper document. On the other hand, it is difficult to prove that the time shown for the machine scanning the paper document is precise. Hence, in the fourth embodiment of the present invention, a sequential number is added to the image data obtained by scanning, and information (for example a serial number) peculiar to the scanning apparatus 10 and the sequential number are included in the signature information, so that the number of the generation of the image data generated by the scanning apparatus 10 is known.
Meanwhile, in order to improve the date and time when the image data are generated or the signature is given, the time stamp service provided by a third party organization may be used. Accordingly, in the fifth embodiment, the time stamp issued by a time stamp service is added to the image data so that it is possible to prove the time when the image data are generated or the signature is given.
Meanwhile, the precision of time proving the existence of the image data does not always have to be in units of seconds but may be in units of days. On the other hand, the time stamp service is generally accounted whenever the time proof is implemented. Hence, when a massive volume of paper documents are electronized, if the time stamp is obtained for every paper document, it costs a great deal. Because of this, in the sixth embodiment, the same time stamp is added to the machine signature and the user signature generated within a designated time period such as a single day.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5490217 *Mar 5, 1993Feb 6, 1996Metanetics CorporationAutomatic document handling systemUS5530755 *Aug 16, 1994Jun 25, 1996France TelecomSecured apparatus and process for securing the transmission of documents by fax and graphic code for the authentication of an imageUS5598473 *Aug 17, 1994Jan 28, 1997Ibm CorporationDigital signature generator/verifier/recorder (DS-GVR) for analog transmissionsUS5652794 *Aug 11, 1995Jul 29, 1997France TelecomDevice and process for securizing a document and graphic authentification codeUS5671285 *Dec 13, 1995Sep 23, 1997Newman; Bruce D.Secure communication systemUS5926550 *Mar 31, 1997Jul 20, 1999Intel CorporationPeripheral device preventing post-scan modificationUS6862583 *Oct 4, 1999Mar 1, 2005Canon Kabushiki KaishaAuthenticated secure printingUS7181017 *Mar 25, 2002Feb 20, 2007David FelsherSystem and method for secure three-party communicationsUS20020026583 *Jul 30, 2001Feb 28, 2002Harrison Keith AlexanderDocument transmission techniques IVUS20020032862 *Jul 30, 2001Mar 14, 2002Harrison Keith AlexanderDocument Transmission techniques IIUS20020048369 *Sep 10, 2001Apr 25, 2002Intertrust Technologies Corp.Systems and methods for secure transaction management and electronic rights protectionUS20020054334 *Jul 30, 2001May 9, 2002Harrison Keith AlexanderDocument transmission Techniques IUS20030145200 *Jan 31, 2002Jul 31, 2003Guy EdenSystem and method for authenticating data transmissions from a digital scannerUS20070171485 *Jan 19, 2007Jul 26, 2007Masuyoshi YachidaDocument computerizing apparatus, method thereof, and program product for executing the methodJP3616601B2 Title not availableJP2000215379A Title not availableJP2001339543A Title not availableJP2002230202A Title not availableJP2003029629A Title not availableJP2003134108A Title not availableJP2003318885A Title not availableJP2004133821A Title not available* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS8909921 *Nov 12, 2008Dec 9, 2014Fujitsu LimitedSignature management method and signature management deviceUS20090208000 *Nov 12, 2008Aug 20, 2009Fujitsu LimitedSignature management method and signature management device* Cited by examinerClassifications U.S. Classification380/246, 713/185, 713/156International ClassificationH04L29/00, H04N1/44, G06F21/00Cooperative ClassificationH04L2209/60, H04L9/3247, H04L9/3297European ClassificationH04L9/32S, H04L9/32TLegal EventsDateCodeEventDescriptionAug 29, 2005ASAssignmentOwner name: RICOH COMPANY, LTD., JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YACHIDA, MASUYOSHI;KANAI, YOICHI;REEL/FRAME:016919/0247;SIGNING DATES FROM 20050801 TO 20050802Owner name: RICOH COMPANY, LTD., JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YACHIDA, MASUYOSHI;KANAI, YOICHI;SIGNING DATES FROM 20050801 TO 20050802;REEL/FRAME:016919/0247Jul 24, 2014FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services