DOCKING STATION FOR CELLULAR PHONE

摘要

PURPOSE: A docking station for a cellular phone is provided to perform a hot synchronization between a PC and the cellular phone using a simple hot synchronous button by composing the hot synchronous button in the outside of a desk top charger. CONSTITUTION: A desk top charger(20) has a hot synchronous button circuit for controlling a hot synchronization of a cellular phone(30) and performs a data exchange between a PC(30) and the cellular phone(30). The cellular phone(30) has a switching circuit operated by a signal of the desk top charger(20) and generates a hot synchronous interrupt signal. A serial interface(40) connects the desk top charger(20) with the PC(30). The hot synchronous button circuit of the desk top charger(20) has a toggle switch operated by an external hot synchronous button for controlling a battery voltage and a diode for preventing an inverse voltage in which a battery signal supplied by an operation of the toggle switch is provided to the PC(30). The switch circuit has a switching element for generating the hot synchronous interrupt signal by a high signal of a battery.