A mobile communication device can include a cellular radio-frequency transceiver serviceable by a commercial carrier and a short-range wireless transceiver for communicating with a local access point. The mobile communication device can further include a processor configured to control the operation...http://www.google.com.hk/patents/US20050101250?utm_source=gb-gplus-share專利 US20050101250 - Mobile care-giving and intelligent assistance device
