Communication terminal performing power save by inactivating wireless communication functions
US8914036B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2008 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Sep 19, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication terminal includes a first wireless unit for carrying out cellular communication, and a second wireless unit for carrying out WLAN communication. A control unit carries out a power save operation that inactivates the WLAN communication function of these wireless communication functions. Location information for access points accessible by WLAN communication is stored in the storage unit. The control unit calculates distances between access points and the communication terminal and determines whether or not the communication terminal is within communication range of any of the access points by matching location information for the communication terminal obtained by the GPS unit and location information for the access points stored in the storage unit. When the access point is within communication range, the control unit gives notification by outputting the signal strength via a display unit and the like according to the distance to the access point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.