Information medium recognition device
US5528699A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1994 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Sep 23, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An information medium recognition device for recognizing an information medium such as a handwritten signature inputted by performing an online input operation. The information medium recognition device is provided with an input portion for inputting the information medium (e.g., a signature) online and outputting an information signal representing the inputted information medium, a detection portion for detecting spectral intensity of the signature by performing a P-type Fourier transform processing on the information signal received from the input portion, an input fuzzy portion for converting the spectral intensity into a compressed fuzzy cardinality or density by performing a fuzzy inference process on the spectral intensity, which is detected by the detection portion, a conversion portion that converts the spectral intensities into fuzzy sets by performing a fuzzy inference process and a fuzzy net portion and an output fuzzy portion for judging from the fuzzy density obtained from the output of the fuzzy net portion whether or not the information medium is genuine. Thereby, the genuineness of an information medium (e.g., a handwritten signature) can be accurately recognized an…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.