Abstract: A method of avoiding screen off during an Automatic Response System (ARS) service is provided. The method includes enabling a proximity sensor in a call connection, detecting one of a first gesture and a second gesture during a call, and upon detecting the first gesture, disabling the proximity sensor.

Abstract: A method of avoiding screen off during an Automatic Response System (ARS) service is provided. The method includes enabling a proximity sensor in a call connection, detecting one of a first gesture and a second gesture during a call, and upon detecting the first gesture, disabling the proximity sensor.

Abstract: A method of avoiding screen off during an Automatic Response System (ARS) service is provided. The method includes enabling a proximity sensor in a call connection, detecting one of a first gesture and a second gesture during a call, and upon detecting the first gesture, disabling the proximity sensor.

Abstract: A method of avoiding screen off during an Automatic Response System (ARS) service is provided. The method includes enabling a proximity sensor in a call connection, detecting one of a first gesture and a second gesture during a call, and upon detecting the first gesture, disabling the proximity sensor.

Abstract: A method of avoiding screen off during an Automatic Response System (ARS) service is provided. The method includes enabling a proximity sensor in a call connection, detecting one of a first gesture and a second gesture during a call, and upon detecting the first gesture, disabling the proximity sensor.

Abstract: A method of avoiding screen off during an Automatic Response System (ARS) service is provided. The method includes enabling a proximity sensor in a call connection, detecting one of a first gesture and a second gesture during a call, and upon detecting the first gesture, disabling the proximity sensor.

Abstract: A method of avoiding screen off during an Automatic Response System (ARS) service is provided. The method includes enabling a proximity sensor in a call connection, detecting one of a first gesture and a second gesture during a call, and upon detecting the first gesture, disabling the proximity sensor.

Abstract: A method of avoiding screen off during an Automatic Response System (ARS) service is provided. The method includes enabling a proximity sensor in a call connection, detecting one of a first gesture and a second gesture during a call, and upon detecting the first gesture, disabling the proximity sensor.

Abstract: A Radio Frequency Identification (RFID) system and method are provided that includes a reader and a tag which share a predetermined secret key. The reader transmits an authentication request random number to the tag. The reader and the tag generate a Pseudorandom Noise (PN) sequence formed of a series of binary codes from an exclusive disjunction of the authentication request random number and the predetermined secret key. The tag produces an authentication response random number by performing a predetermined conversion operation for the PN sequence and transmits the authentication response random number to the reader. The reader authenticates the tag by analyzing the PN sequence and the authentication response random number.

Abstract: A Radio Frequency Identification (RFID) system and method are provided that includes a reader and a tag which share a predetermined secret key. The reader transmits an authentication request random number to the tag. The reader and the tag generate a Pseudorandom Noise (PN) sequence formed of a series of binary codes from an exclusive disjunction of the authentication request random number and the predetermined secret key. The tag produces an authentication response random number by performing a predetermined conversion operation for the PN sequence and transmits the authentication response random number to the reader. The reader authenticates the tag by analyzing the PN sequence and the authentication response random number.

Abstract: A method and an apparatus are provided for displaying a local time of a recipient area in a communication terminal. The communication terminal stores country names corresponding to country codes and a global time table constructed having time differences for the countries in order to display the local time of the recipient area. If the confirmation of the local time is requested, a country and a time difference corresponding to an input country code are confirmed through the global time table, the local time is calculated, and the calculated local time is displayed.