Technique of providing information to mobile devices
US6968181B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2002 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Dec 16, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The access point of the present invention saves power consumption and attains size reduction of a mobile device that receives information. A radio base station 10a provides a connecting point for connecting a plurality of clients with the Internet 60, and stores announcement information, which is recognizable by a user terminal 20a. The user terminal 20a transmits information to and from an outlet terminal 25 by radio wave. The radio base station 10a detects the position of the user terminal 20a and the position of the outlet terminal 25, based on the receiving status of the radio wave from the user terminal 20a and the outlet terminal 25. The radio base station 10a provides the user terminal 20a with the stored announcement information when the user terminal 20a comes close to the outlet terminal 25 to be within a preset distance from the outlet terminal 25.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.