Electronics and Telecommunications Research Institute

Cisc Semiconductor Design+consulting Gmbh

Dong-Beom Shin

Heyung Sub Lee

Jong-Suk Chae

Sang Yeoun Lee

Cheol Sig Pyo

Hyunseok Kim

Jae-Young Jung

Kang Bok Lee

Hoe-Sung Yang

Young Sun Kim

Seung-Il Myong

Chan-Won Park

Gil Young Choi

Su Na Choi

Seung Il Myong

Doo Ho Choi

Sang Hyun Mo

You Sung Kang

Kyu Won Han

Yong-Je Choi

Hong Soon Nam

Hyochan Bang

Jae Heum Lee

Heyung-Sub Lee

Nak Seon Seong

Kang-Bok Lee

Joo Sang Park

Jongsub Cha

Sang-Hyun Mo

Jae-Heum Lee

Jae Hoon Yu

Di Alex Janek

Di David Tschische

Di Josef Preishuber-Pfluegl

Disclosed are an apparatus and a method for transmitting a tag. The apparatus for transmitting a tag converts 2 bits of a plurality of bit data into one symbol using phase information and orthogonal information. The apparatus for transmitting a tag generates a sub-carrier signal by multiplying the symbol by a square wave having a faster period by a predetermined number of times than a period of the symbol, and transmits the sub-carrier signal to a reader

Apparatus and method for transmitting tag

In a radio frequency identification (RFID) security reader, by integrating an encryption module that encrypts transmission data and a decryption module that decrypts reception data from an RFID security tag to restore the reception data to original data to a modem, an input/output time period of a processor module that processes a communication protocol in an RFID security system is minimized.

RFID security reader

Provided are an RFID reader and a method for controlling a gain thereof. The RFID reader includes an amplifier and an AGC circuit. The amplifier controls the gain of an RX signal, received from an RFID tag, in response to an AGC signal. The AGC circuit measures a signal level in an ante-preamble period of the RX signal and generates an AGC signal to control the gain of the RX signal, on the basis of the measured signal level.

RFID reader and method for controlling gain thereof

Provided are a Radio Frequency Identification (RFID) tag and apparatus and method for locating a RFID tag without comparing arrival times of blink signals transmitted from the RFID tag in order to quickly trace a location of the RFID tag. The RFID tag includes a tag ID generator configured to generate a tag ID of the RFID tag, a blink generator configured to generate a plurality of sub-blink signals that form the blink signal, a sub-blink ID generator configured to generate sub-blink IDs for the generated sub-blink signals, a sub-blink ID inserter configured to insert the generated sub-blink IDs into the sub-blink signals, and a transmitter configured to transmit the blink signal having the tag ID and the sub-blink IDs.

Apparatus and method for locating RFID tag

Disclosed are a radio frequency identification (RFID) security apparatus and a method thereof. According to the RFID security method, a secure tag reader performs determining an AES key using security information received from a secure tag and generating an output key using the determined AES key, decrypting AES data received from the secure tag using the output key, and encrypting data to be transmitted to the secure tag using the output key and transmitting the data, and a secure tag performs generating an output key using an AES key and security information, and transmitting the security information to a secure tag reader, encrypting data to be transmitted to the secure tag reader using the output key, and transmitting the encrypted data to the secure tag reader, and decrypting data received from the secure tag reader using the output key.

Radio frequency identification (RFID) security apparatus having security function and method thereof

A multistage channel estimation method and apparatus is provided. The multistage channel estimation method includes: receiving a data frame to compensate for a distortion of the data frame based on a first channel estimation value associated with a corresponding section of the data frame; a first step of changing the corresponding section to calculate a second channel estimation value associated with the changed section; a second step of updating the first channel estimation value based on the calculated second channel estimation value; a third step of compensating for the distortion of the data frame based on the updated first channel estimation value to count a number of compensations; and repeating the first step through the third step, when the counted number of compensations does not match a predetermined numerical value.

Multistage channel estimation method and apparatus

Provided is a method and apparatus for managing a product distribution. The product distribution management method may include: reading a security key of a product from a security tag attached to the product; transferring the read security key to a security server; receiving, from the security server, first authentication information that is encrypted using the security key; receiving, from the security tag, second authentication information that is encrypted using the security key; and determining whether the security tag is duplicated, based on the first authentication information and the second authentication information.

Apparatus and method for managing product distribution using security tag

Provided is an apparatus for implementing an electro-optical cable distribution network in which a coaxial cable is replaced with an optical cable in order to provide a service integrating broadcast data and communication data by solving a frequency constraint problem in a cable television (CATV) network employing a conventional hybrid-fiber coaxial (HFC) network architecture. The apparatus includes an optical network unit (ONU) which converts a downstream signal received from a system operator (SO) into an optical signal and transmits the optical signal to an optical cable; and an optical cable modem which receives the optical downstream signal from the ONU and converts the received signal into an electrical signal. In addition, the ONU and the optical cable modem control signal quality of an optical path.

Apparatus for implementing electro-optical CATV network and signal processing method used by the apparatus

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Daejeon, South Korea

Dong-Beom Shin