Method for producing indicators and processing apparatus and system utilizing the indicators
US7669774B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2007 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Dec 21, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/482
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a method for producing graphical indicators and interactive systems for utilizing the graphical indicators. On the surface of an object, visually negligible graphical indicators are provided. The graphical indicators and main information, i.e. text or pictures, co-exist on the surface of object. The graphical indicators do not interfere with the main information when the perception of human eyes are concerned. With the graphical indicators, further information other than the main information on the surface of object are carried. In addition to the main information on the surface of object, one is able to obtain additional information through an auxiliary electronic device or trigger an interactive operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.