Patent ID: 7171186
Filing Date: 2007-01-30
Classification: G01R,H04M,H04W,Y02D

Abstract:
1. A cellular mobile phone which is driven by a battery, the phone comprising: a control unit for measuring the terminal voltage and current of the battery; a transmit/receive unit for providing an external device with notification of the measured terminal voltage and current, and receiving notification of available time for the cellular mobile phone, wherein the external device has calculated the available time while updating, when necessary, data which indicates remaining capacity of the battery in terms of the terminal voltage of the battery; a display unit for displaying thereon the notified available time; and a temperature detection unit for detecting temperature near the battery, wherein the transmit/receive unit also functions to notify the external device of the detected temperature so that the data that indicates the remaining capacity is corrected by the external device in accordance with the detected temperature.