Patent ID: 7533280

Claim:
An emergency call apparatus for a smart phone including a telephone unit and a personal data assistant unit, the emergency call apparatus comprising: the telephone unit including an emergency call performing unit; the personal data assistant unit including an emergency call number storage unit for storing at least one emergency call number and a telephone power control unit for comparing a phone number inputted by a user with stored emergency call numbers when the telephone unit is powered off, and generating a telephone power-on signal for activating the telephone unit if the inputted phone number is identical to one of the stored emergency call numbers, the personal data assistant unit sending a call set-up command to the telephone unit; a power supply for supplying power to the telephone unit and the personal data assistant unit; a first power path connected to the power supply, for sending power to the personal data assistant unit; and a second power path connected to the power supply, for sending power to the telephone unit in response to the telephone power-on signal, wherein power to the telephone unit is independently turned off while power to the personal data assistant unit continues to be supplied, and wherein the telephone power-on signal turns the telephone unit from an off-mode to an on-mode in order to transmit an emergency call.