Electronics and Telecommunications Research Institute

Sk Innovation Co., Ltd.

Arizona Board of Regents, a Body Corporate

Cisc Semiconductor Design+consulting Gmbh

Hyunseok Kim

Heyung Sub Lee

Cheol Sig Pyo

Kang Bok Lee

Jong-Suk Chae

Su Na Choi

Sang Yeoun Lee

Hoe-Sung Yang

Dong-Beom Shin

Kwang-Soo Cho

Jin Hwa Ryu

Soocheol Kim

Tae-Gyu Kang

Dae Ho Kim

Jae-Young Jung

Kyu Won Han

You Jin Kim

So Yung Park

Young Sung Son

Jin Chul Choi

Myung Eun Kim

Nak Seon Seong

Donghun Lee

Soonyong Song

Seonghyun Kim

Jongkwon Son

Ingook Jang

Doo Ho Choi

Seong Hee Park

Yong-Je Choi

You Sung Kang

Sang Gi Hong

Jae Heum Lee

Jung Sik Sung

Sun-Hwa Lim

Taewoo Kim

Ji Hun Jeon

Joo Sang Park

Youngjoong Joo

JeongKyun Kim

Jeehoon Jeon

Jaihyun Choi

Woojin Lee

Di Josef Preishuber-Pfluegl

Di Alex Janek

Di David Tschische

The present invention is directed to reducing non-fire alarms by distinguishing between smoke caused by an actual fire and non-fire smoke generated in daily life when an event suspected to be a fire occurs. The present invention provides an apparatus and method for determining whether a fire occurs using a smoke detector, which includes a light emitter for generating multiple wavelengths, a light receiver configured to detect light scattered by particles of smoke, and a fire determiner for checking whether the strength of a signal of the detected scattered light exceeds a threshold and generating an alarm, to use characteristics of multiple wavelengths in a photoelectric fire detection apparatus. The fire determiner calculates normalized values by normalizing measured values for the scattered light, and calculates a singular value from the normalized values as a criterion for determining whether the smoke is caused by a fire or a non-fire.

Fire determination method and apparatus using multiple wavelengths

The disclosure relates to a non-dispersive infrared (NDIR) gas sensor which detects the concentration of gas with a simple structure and method by manufacturing an optical waveguide with a gas-permeable polymer material instead of a conventional cavity or chamber type. An optical signal travels through the optical waveguide of gas-permeable polymer by total internal reflection, and the gas naturally penetrates the optical waveguide without the use of separate inlet and outlet openings, so that the optical signal and gas particles come into contact with each other within the optical waveguide. Since the optical signal detected by a photodetector at the other end of the optical waveguide after traveling while contacting the gas particles has properties changed according to the concentration of the gas which they have contacted in the optical waveguide, it is possible to measure the concentration of a specific gas from the detected optical signal.

Non-dispersive infrared gas sensor using gas-permeable polymer optical waveguide and manufacturing method

A surface plasmon resonance imaging apparatus is provided. The surface plasmon resonance imaging apparatus includes a light irradiation unit configured to irradiate polarized light onto a metal coating film provided on one surface of a prism, a light modulator configured to spatially pattern-encode light reflected by the metal coating film and the prism, a light detector configured to detect a pattern-encoded light signal, obtained through pattern-encoding by the light modulator, as a spectral signal, a signal processor configured to spatially decode the spectral signal and analyze a decoded spectral signal to generate characteristic data of a sample provided on the metal coating film, and an output unit configured to output the characteristic data of the sample as a two-dimensional (2D) image.

Surface plasmon resonance imaging apparatus and method

A method and an apparatus for exclusive reinforcement learning are provided, comprising: collecting information of states of an environment through the communication interface and performing a statistical analysis on the states using the collected information; determining a first state value of a first state among the states in a training phase and a second state value of a second state among the states in an inference phase based on analysis results of the statistical analysis; performing reinforcement learning by using one reinforcement learning unit of a plurality of reinforcement learning unit which performs reinforcement learnings from different perspectives according to the first state value; and selecting one of actions determined by the plurality of reinforcement learning unit based on the second state value and applying selected action to the environment.

Method and apparatus for reinforcement machine learning

An apparatus and method for abnormal situation detection are disclosed. An abnormal situation detection apparatus can map first sensor data among sensor data transmitted from a plurality of sensors into a vector value, convert it into first situation information in the form of an image pattern, and generate a learning model using the first situation information and an abnormal situation reference range. In addition, the abnormal situation detection apparatus can convert second sensor data among sensor data transmitted from a plurality of sensors into a form that can be input to the learning model, and determine whether an abnormal situation occurs by applying the converted second data to the learning model.

Apparatus and method for abnormal situation detection

A lighting fault diagnosis method includes determining a fault item among a plurality of fault items based on fault symptom data of a test for each fault item, and recommending a repair method suitable for the determined fault item.

Method and system for vision-based automatic fault notification and classification of system lighting

A digital painting device and method. The digital painting device includes a generator to generate a color generation signal corresponding to color data in an electronic palette selected by an electronic brush, and a displayer to transmit the color generation signal to a light-emitting module that touches the electronic brush in a time period in which the color generation signal is maintained such that the color data is displayed on the light-emitting module.

Device and method for digital painting

Provided is an energy storage apparatus capable of freely adjusting an energy storage capacity by including a integrated battery platform including a battery, a power relay assembly, and a battery management system; and a battery tray including a battery and coupled to the battery platform to connect the batteries in series with each other.

Energy storing apparatus

In integrated circuit chips that are used for RFID, a method of calibrating an operation frequency that is generated in an operation frequency generator and a semiconductor wafer including a calibration circuit are provided. The method of calibrating an operation frequency of integrated circuit chips includes: supplying DC power to the integrated circuit chips; selecting an integrated circuit chip to perform calibration of an operation frequency; receiving an operation frequency that is generated in the selected integrated circuit chip; calculating a difference between a phase of the operation frequency and a phase of a calibration target frequency; generating a frequency calibration value of the operation frequency using the phase difference; transmitting a control signal including the frequency calibration value to the integrated circuit chip; and releasing a selection of the integrated circuit chip in which calibration of the operation frequency is complete.

Semiconductor wafer and method for auto-calibrating integrated circuit chips using PLL at wafer level

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

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

Disclosed is a method of generating an activation code of a Radio Frequency Identification (RFID) tag including calculating K satisfying a condition that N is set to exceed 2and to be equal to or less than 2, when classifying N number of objects through a plurality of RFID tags; and classifying the N number of objects by recording a code corresponding to each of the N number of objects in a K-bit region in an activation code of each RFID tag.

Method of generating activation code for radio frequency identification tag

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

Disclosed is a synchronization method between a reader and tag according to an example embodiment, the method including: transmitting, by the reader, a first write command message to the tag at a first time; detecting, by the tag, the first write command message from the reader at a second time and transmitting a first response message to the reader in response to the first write message; transmitting, by the reader, a second write command message including first time information of the first time to the tag; and correcting, by the tag, a clock offset using a difference between the first time and the second time.

Synchronization method between reader and tag

A low-power pulse generator is provided for use in ultra-wideband (UWB) systems. In one embodiment, the UWB pulse generator includes four pulse generators, such as digital triangular pulse generators, that generate Gaussian-like pulses of alternating polarity at different time offsets. The resulting four Gaussian-like pulses are combined to generate a UWB pulse that approximates the fifth derivative of a Gaussian pulse. In other embodiments, different-order derivatives of a Gaussian pulse may be approximated by combining different numbers of Gaussian-like pulses. The UWB pulse generator is preferably implemented with CMOS circuitry to limit power consumption.

Digital low-power CMOS pulse generator for ultra-wideband systems

Growing community of inventors

Daejeon, South Korea

Hyunseok Kim