System and method for using printed documents
US6898334B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 2002 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | Nov 1, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2200/1637
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for using specially printed paper and a handheld device to supplement, or replace, large displays and user interfaces commonly required for efficient use of computing devices. The paper is encoded with location information and a message. The message is distributed redundantly across the page, may be arbitrarily large, and may contain security information. In one embodiment, the device uses a single sensor to read the encoded message and location information, and to measure the relative motion of the device. After scanning the specially printed paper, a user may then raise the device, place it on any convenient flat surface, and continue to slide, exploring areas outside of the printed copy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.