Electronics and Telecommunications Research Institute

Seok-jin Lee

Jin Young Kim

Moon-Sik Lee

Kyu-Hyung Kim

Hyun-Woo Kang

Joung-Sik Kim

Gwang-Su Kim

A method and apparatus for near field communication (NFC) are provided. A reader searches for communication with another party according to a first communication method of transmitting a communication request signal or a reader searches for communication with another party according to a second communication method of performing wireless power transmission. When the reader receives a response signal from communication with another party, the reader performs communication with the other party.

Method and apparatus for near field communication

A visible light communication (VLC) transmitting apparatus modulates source data to an orthogonal frequency division multiplexing (OFDM) symbol according to an OFDM modulation method, inserts a diffusion code that is allocated to the VLC transmitting apparatus into a frequency axis of the OFDM symbol, converts the OFDM symbol in which the diffusion code is inserted to a visible light modulation signal, and transmits the converted visible light modulation signal. Thereby, a signal of the VLC transmitting apparatus in which a VLC receiving apparatus wants can be easily detected.

Apparatus and method for transmitting and receiving visible light communication

A wireless inducement system and an auto driving apparatus for driving a vehicle and a method of driving the same are provided. The wireless inducement system includes an implanted road positioning signaler, an auto driving apparatus, and smart roadside equipment. The implanted road positioning signaler is installed in a lane and transmits a reference location wireless signal including information about location coordinates and an electric wave sending time. The auto driving apparatus grasps a location using the received reference location wireless signal and performs auto driving, and the smart roadside equipment transmits situation information about an adjacent region of the vehicle to the auto driving apparatus.

Wireless inducememt system and auto driving apparatus for driving vehicle and method of driving the same

Provided is a routing method for a guard lamp using a short distance wireless communication, the method including: performing, by a neighbor setup guard lamp, a neighbor setup operation; transferring, by the neighbor setup guard lamp, an initialization request message (Init_Request Message) to a neighbor guard lamp and receiving an initialization response message (Init-Rep Message) from the neighbor guard lamp to form a guard lamp network; receiving, by the neighbor setup guard lamp, a data message from the neighbor guard lamp; and repairing a path of the neighbor guard lamp having an error caused by a link loss at the receiving of the data message.

Routing method for guard lamp using short distance wireless communication

Provided are a signal information transmitting device and a signal information transmitting method. The method includes detecting sections for which current flows through signal lines of a target device and generating detect signals according to the current flow detection result; detecting sections for which switches are turned on and generating switch signals according to the switch detection result; mapping the detect signals with the switch signals according to overlapping sections between active sections of the detect signals and active sections of the switch signals; and transmitting information on the detect signals according to the mapping result.

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Daegu, South Korea

Seok-jin Lee