Sk Telecom Company, Ltd.

Sk Planet Co., Ltd.

Samsung Electronics Co., Ltd.

Lg Information & Communications, Ltd.

Sunshin An

Sungjun Kim

Youngil Kim

Youngshin Yoon

Joosik Lee

Jaesic Jeon

Sangwoo Rhie

Sangmok Sohn

Soonjae Jeong

Youngmin Ji

Woo-shik Kang

Ji-Hun Koo

Jin-Young Yang

Soo Hyun Park

Youngeun Park

Young-hwan Jung

Shinhyuk Kang

Dongjin Han

Wenzhe Cui

The present invention relates to a method for measuring a location of a radio frequency identification (RFID) reader by using beacons, and an RFID system for measuring a location of a moving RFID reader in an RFID system comprising: a plurality of beacon devices for emitting beacons; an RFID tag for transmitting pre-stored information by using radio frequency identification; and an RFID reader for calculating a current location using a plurality of at least three beacons wherein the RFID reader receives the plurality of beacons from the plurality of beacon devices while moving, and receiving the information from the RFID tag by using the radio frequency identification. According to the present invention, it is possible to increase the accuracy of the location measurement of a moving RFID reader in an RFID system because the location of the RFID reader is measured in consideration of propagation environments.

Method for measuring location of radio frequency identification reader by using beacon

An anti-collision method is provided for a radio frequency identification (RFID) system including a reader, and two or more tags each having an ID. The anti-collision method includes transmitting an ID request value from the reader to the respective tags, the ID request value containing one or more of the codes forming the ID, receiving the ID from at least one of the tags which contain the ID request value, when a plurality of IDs collide, requesting the tags for a value representing a position of collision, and receiving the value representing the position of collision from the tags and identifying the IDs of the tags. Because collision pattern of the bits of respective IDs is recognized, and a plurality of IDs are recognized, the number of transmissions between the reader and the tags can be reduced.

Identification anti-collision method and radio frequency identification system using the same

A network management system and method is disclosed that can add or modify, for example, a managed object, without recompiling or stopping operations of an executing network management system. Thus, preferred embodiments of the present invention allow a dynamic management of managed objects in a network management system.

Network management system and method

Growing community of inventors

Seoul, South Korea

Sunshin An