Information providing system
US6748424B1 · kind B1 · utility
13Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 2000 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Apr 24, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A field player 2 transmits to a field generator 1 an image of an ultra magic key (UMK) sticker 7 on which an image pattern instructing transmission of predetermined data to the field player 2 is printed. The field generator 1 transmits information corresponding to the image pattern of the UMK sticker 7 to the field player 2. The field player 2 reproduces information such as an image or a sound transmitted from the field generator 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.