Patent ID: 7356331
Filing Date: 2008-04-08
Classification: H04M

Abstract:
1. A method of automatically deleting a call log and message log in order to maintain security in a mobile phone, the method comprising the steps of: registering a telephone number requiring security maintenance in a log deleting management menu of the mobile phone; when a telephone number of a call or message received by the mobile phone corresponds to a telephone number registered in the log deleting management, recording the telephone number of the received call in a secret received number list or recording the telephone number of the received message in a secret received message list; when a telephone number of an outgoing call or outgoing message sent from the mobile phone corresponds to a telephone number registered in the log deleting management, performing a sending function for the outgoing call while concealing information about a sender, or performing a sending function for the outgoing message after recording the outgoing message in a secret sent message list; when a telephone number of a call or message received by the mobile phone corresponds to a telephone number registered in the log deleting management, automatically deleting the received telephone number from a communication list/recent received number list or from a received message list, or displaying content indicating that there is no information; when a telephone number of an outgoing call or outgoing message sent from the mobile phone corresponds to a telephone number registered in the log deleting management, automatically deleting the telephone number of the outgoing call or outgoing message from a communication list/recent sent number list or from a sent message list, or displaying content indicating that there is no information; and when the display indicating that there is no information is selected through a predetermined key, performing a control operation such that a corresponding function of the key is not performed.