Wireless accessory unit for notification of incoming calls and method of alerting a user to an incoming call

摘要

A system, accessory unit and corresponding method for notifying a user of a wireless communication device (316) of an incoming call where the accessory unit (100) is coupled to a wristwatch (310) such that a display (102) covers the face (315) of the wristwatch (310). The accessory unit (100) includes a transparent liquid crystal display (102), which permits the time to be read from the face (315) of the wristwatch (310) when the accessory device (100) is coupled to the wristwatch (310). Low-power, short-range communication is employed to establish a communication link between the accessory unit (100) and the wireless communication device (316). When an incoming call is received, the wireless communication device (316) sends caller ID information to the accessory unit (100), and the caller ID information is displayed by the accessory unit (100).