Abstract: A method and system for avoiding tag conflict by identifying a RFID using a K-nary tree search. The tag conflict avoidance system includes a plurality of tags receiving a first signal, converting identification codes of the tags into predetermined codes according to the first signal, and outputting the converted codes as second signals. The tag conflict avoidance system also includes a reader outputting the first signal, receiving the second signals, and identifying the tags using the codes included in the second signals.

Abstract: A location tracking system and method are provided. The location tracking system includes a plurality of tags which receive a read signal and which output tag signals, a reader which transmits the read signal to the tags, receives the tag signals, and identifies tag IDs from the tag signals, and a data processing system which stores location information of the tags and determines the location of the reader by using the tag IDs received from the reader based on the location information.

Abstract: A system and method for providing geographical information to a driver of a vehicle using radio frequency identification (RFID). Also provided is a traffic information supply system using RFID. The geographical information supply system includes a reader provided near a road which outputs a first signal and receives a second signal generated in response to the first signal; a tag that senses the first signal, converts information on a destination into the second signal in response to the first signal, and outputs the second signal. Also included is a first control unit which extracts and outputs the destination information from the second signal, receives geographical information to the destination, and supplies the geographical information to a driver. A server generates the geographical information corresponding to the destination information and outputs the generated geographical information to the first control unit.

Abstract: A location tracking system and method are provided. The location tracking system includes a plurality of tags which receive a read signal and which output tag signals, a reader which transmits the read signal to the tags, receives the tag signals, and identifies tag IDs from the tag signals, and a data processing system which stores location information of the tags and determines the location of the reader by using the tag IDs received from the reader based on the location information.

Abstract: A tag conflict avoidance method and system are provided. The tag conflict avoidance system includes a plurality of tags receiving a first signal, converting identification codes of the tags into predetermined codes according to the first signal, and outputting the converted codes as second signals; and a reader outputting the first signal, receiving the second signals, and identifying the tags using the codes included in the second signals.

Abstract: A method and apparatus for controlling a power of an RFID module of a handheld terminal are provided. The apparatus includes a power supply part that supplies power to the RFID module, an inertial sensor part that detects motion of the handheld terminal and outputs a motion detection signal, and a user intention estimating part that recognizes a motion pattern of the handheld terminal using the motion detection signal, and outputs an RFID operation intention estimating signal if it is estimated that a user intends to use the RFID module part. A control part is used to activate the power supply part when the RFID operation intention estimating signal is input into the control part.

Abstract: A system and method for providing geographical information to a driver of a vehicle using radio frequency identification (RFID). Also provided is a traffic information supply system using RFID. The geographical information supply system includes a reader provided near a road which outputs a first signal and receives a second signal generated in response to the first signal; a tag that senses the first signal, converts information on a destination into the second signal in response to the first signal, and outputs the second signal. Also included is a first control unit which extracts and outputs the destination information from the second signal, receives geographical information to the destination, and supplies the geographical information to a driver. A server generates the geographical information corresponding to the destination information and outputs the generated geographical information to the first control unit.