Information input method, information input sheet, and information input apparatus
US6188802A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1997 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Nov 17, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/06037
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An information input apparatus, an information input method, and an information input sheet which a user can easily operate without directly having to become aware of hardware are provided. An information input sheet includes a display area having an input information area and an identification area in which an identification code of the input information is provided. The identification code of the input information is provided in the display area as a target pattern having a rotation mode in which a code is defined by a directional orientation of the target pattern. An image pickup unit generates imaging information from imaging the information input sheet. The imaging information includes imaging information of the identification area of the information input sheet. Based on this imaging information of the identification area, the rotation mode of the target pattern, as recognized by an image recognition unit, is determined. The rotation mode specifies the identification code of the information input sheet. Information on the information input sheet is authenticated by authentication processing means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.