Patent ID: 7907929

Claim:
A communication apparatus having a function of short range wireless communication according to plural instances of communication protocol with a cellular phone being operable on a battery, the communication apparatus for use in a vehicle comprising: a communication unit for communicating information by the short range wireless communication according to at least one of the plural instances of the communication protocol with the cellular phone, wherein the information includes information on remaining battery power of the battery in the cellular phone; a notification unit for notifying a user of the information in a directly recognizable form for the user, wherein the information includes warning information on the remaining battery power of the battery in the cellular phone; and a control unit for controlling notification of the warning information for the user by the notification unit, wherein the notification of the warning information by the notification unit is provided for the user under control of the control unit after a determination that the remaining battery power is equal to or less than a predetermined amount when the communication unit and the cellular phone are having the short range wireless communication established therebetween according to the plural instances of communication protocol; based on the determination that the remaining battery power is equal to or less than the predetermined amount, the control unit automatically controls the notification unit for notifying the user of a query information that queries the user about an intention of disconnection of the short range wireless communication according to one of the plural instances of the established communication protocol with the cellular phone after the notification of the warning information on the remaining battery power when the short range wireless communication between the communication unit and the cellular phone has been established according to the plural instances of the communication protocol, the control unit controls the communication unit to disconnect the short range wireless communication with the cellular phone according to the one of the plural instances of the established communication protocol when the user chooses to disconnect the short range wireless communication according to the one of the plural instances of the established communication protocol in response to the query information for disconnection; and the control unit maintains the short range wireless communication according to the plural instances of the communication protocol without the disconnection of the short range wireless communication by the communication unit when a response of the user to the query information for disconnection does not indicate the disconnection of the short range wireless communication according to any of the plural instances of the communication protocol.