Digitized bank checks validated by digital signatures
US7720313B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2005 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Nov 18, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/3274
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for handling files containing digitized images, such as digitized bank checks. Four digitized image-files are obtained for each check: front and back at the beginning of a process, and front and back at the end of the process. Four digital signatures are generated, one for each image-file. The four image-files are to be consolidated into a single composite file. However, for technical reasons, the content of the image-files must be altered somewhat. Thus, if the image-files are later extracted from the composite file, the extracted files will not correspond to the original image-files, and will produce different digital signatures. The invention allows the original image-files to be accurately extracted from the composite file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.