Linking of computers based on optical sensing of digital data
US6311214A · kind A · utility
931Cited by
47References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1999 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Jun 29, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A printed object, such as an item of postal mail, a book, printed advertising, a business card, product packaging, etc., is steganographically encoded with plural-bit data. When such an object is presented to an optical sensor, the plural-bit data is decoded and used to establish a link to an internet address corresponding to that object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.