Bibliographic data

Document DE000019907251A1 (Pages: 4)

Bibliographic data Document DE000019907251A1 (Pages: 4)
INID Criterion Field Contents
54 Title TI [DE] Digitales Wasserzeichen für eigenhändig geleistete Unterschriften
[EN] Digital watermark for hand-written signatures or handwriting samples is generated from digital signals of additional, 4D detected writing specimen of same person, third party or other
71/73 Applicant/owner PA Baltus, René, 53125 Bonn, DE
72 Inventor IN Baltus, Rene, 53125 Bonn, DE ; Vielhauer, Claus, 64289 Darmstadt, DE ; Woop, Marc-Bernd, 53123 Bonn, DE
22/96 Application date AD Feb 20, 1999
21 Application number AN 19907251
Country of application AC DE
Publication date PUB Aug 24, 2000
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32		 Priority data PRC
PRN
PRD

51 IPC main class ICM G06K 9/78
51 IPC secondary class ICS G07C 11/00
IPC additional class ICA
IPC index class ICI
Cooperative patent classification CPC G07C 9/35
MCD main class MCM
MCD secondary class MCS G07C 9/00 (2006.01)
MCD additional class MCA
57 Abstract AB [DE] Es wird ein Verfahren beschrieben, daß eine wägetechnisch oder optisch erfaßte und digital gespeicherte Unterschrift mit einem unverwechselbaren, wertabhängig einstellbarem digitalen Wasserzeichen bindet, das u. a. aus einer zusätzlich erfaßten Unterschrift des Unterzeichners selber oder eines Dritten generiert wird.
[EN] The digital watermark is added to a detected and digitized signal produced from the signature and is generated from the digital signals of an additional, four-dimensional detected writing specimen of the same person, a third party or from another source such as a smart card, an encoded PI or passwords, and can be used for later validation of on-line signatures, hand-written passwords or PINs.
56 Cited documents identified in the search CT
56 Cited documents indicated by the applicant CT
56 Cited non-patent literature identified in the search CTNP
56 Cited non-patent literature indicated by the applicant CTNP
Citing documents Determine documents
Sequence listings
Search file IPC ICP G06K 9/78 U
G07C 11/00 J