Electronics and Telecommunications Research Institute

Intellectual Discovery Co., Ltd.

Eun-Hee Kim

Jin-Ho Ko

Cheol Sig Pyo

Yong Sun Kim

Cheol-Sig Pyo

Tae Joon Park

Chang Sub Shin

Wun-Cheol Jeong

Hoyong Kang

Juderk Park

Ho-Yong Kang

Ju-Derk Park

Keun Hyung Lee

There is provided a control method for radiation beam direction of wireless transmission device in a method for controlling radiation beam for a mobile station considerably moving around in the wireless transmission device comprising: updating and storing movement data of moving position and moving direction of the mobile station every time it moves by receiving sensor data in the mobile station; calculating a moving point to move by using the stored movement data of the mobile station by the wireless transmission device; determining a sector zone of radiation beam emission for the moving point to move; and controlling radiation beam of the mobile station by using the sector zone for the determined radiation beam emission in the wireless transmission device.

Control method for radiation beam direction of wireless transmission device

A wireless communication method using a control channel between wireless communication devices including: exchanging profile information between a node and intermediate relay nodes therearound so as to allow the node to transmit/receive data to/from a destination node; determining, by the node, a first intermediate relay node using the profile information and determining a wireless communication mode with the first intermediate relay node; and transmitting/receiving data between the node and the first intermediate relay node by the determined wireless communication mode is provided.

Wireless communication device using common control channel and wireless communication method using the same

A power detector having a differential input unit and a differential output unit. In one aspect, the invention may be a power detector including a differential input unit including a differential input terminal to which an AC signal is input and a DC voltage generator which generates and outputs a DC voltage; and a differential output unit including a differential output terminal which full wave rectifies the AC signal input from the differential input unit and outputs a differential signal, wherein a negative output terminal of the differential output terminal is connected to the output terminal of the DC voltage generator.

Power detector

Disclosed is a self-correlation receiver of a transceiver in which a transmitter shares an antenna with a receiver. The self-correlation receiver includes: a clamper which receives a received signal, limits the magnitude of the received signal within a predetermined range and outputs a clamping signal; and a mixer which receives the received signal and the clamping signal and outputs a signal having a difference frequency between the received signal and the clamping signal.

Self-correlation receiver and transceiver including the same

Growing community of inventors

Daejeon, South Korea

Eun-Hee Kim