Abstract:
PURPOSE: An apparatus and a method for managing product distribution using a security tag are provided to use a security reader by which it is determined whether an RFID tag is copied using as a security key, thereby safely and easily managing products. CONSTITUTION: A reading unit(501) reads a security key of a product from a security tag attached to a product. A receiver(505) receives the first authentication information and the second authentication information which are encoded by the security key from a security server and the security tag. A determining unit(507) determines whether the security tag is copied using the first and second authentication information. The security tag generates the second authentication information by re-encoding the first authentication information decoded by the security key.
Abstract:
A device and a method for detecting wakeup burst in an active RFID(Radio Frequency IDentification) tag are provided to reduce power consumption of the active RFID tag by activating the active RFID tag based on the wakeup burst detected from a signal, which is received from an RFID reader, when the RFID tag starts communication. A trigger signal generator(110) generates trigger signals continuously at predetermined intervals by responding to an input signal received from an RFID reader, and a counter(120) is activated by receiving one of the generated trigger signals and counts sub burst of the input signal while the trigger signal is kept. A comparator(130) detects whether the input signal is wakeup burst depending on matching between a counted value and a predetermined reference value. A wakeup signal generator(140) generates a wakeup signal when all values counted while each trigger signal is kept are matched with the reference value. A reset unit(150) disables the trigger signal generator and the counter when the counted value is different from the reference value.
Abstract:
A device and a method for managing power of a passive tag are provided to use a battery embedded in the passive RFID(Radio Frequency IDentification) tag when an RF power level is insufficient to drive the passive RFID tag by measuring intensity of an RF signal received from an RFID reader. A power supply unit(100) supplies driving power of an RFID tag according to a predetermined control. A power receiver(110) receives an RF signal from an RFID reader. A power manager(120) measures intensity of the received RF signal, and supplies the driving power to the RFID tag by using the power output from the power supply unit or the power induced from the RF signal depending on the control corresponding to a measurement result. The power manager measures a voltage level of the received RF signal, and a controller(130) enables the power manager to supply the power induced from the RF signal when the measured voltage level is higher than a predetermined level capable of driving the RFID tag. The first received command from the RF signal of the RFID tag is used to measure intensity, and the second received command is used to communicate with the reader.
Abstract:
A low-power RFID(Radio Frequency IDentification) tag for lengthening a tag life and a method thereof are provided to lengthen life of a battery by operating only the minimum circuit for waking up the RFID tag, and perform operation with voltage of a continuous wave instead of voltage supplied from the internal battery when the voltage of the continuous wave received from an RFID tag reader is sufficient. A general command decoder(255) detects a general command by decoding a signal received from an RFID tag reader. A wake-up command decoder(245) detects a wake-up command by decoding the signal. A main controller(260) activates the general command decoder, and deactivates the general command decoder when the general command is not received from the general command decoder for a predetermined time in an active mode performing the general command. A wake-up controller(250) switches the main controller into the active mode when a voltage level of a continuous wave included in the signal is higher than a predetermined voltage level or the wake-up command is identical with an activation code while the main controller is kept in a standby mode.
Abstract:
본 발명은, RFID 리더로부터 수신된 전자파의 전압 레벨에 따라 선택적으로 전지(battery) 지원 여부를 결정함으로써, 전파인식거리가 짧아 근거리 통신에 한정되는 '수동형' 태그의 단점과 항시 내부 전지의 전력을 소모하는 '능동형' 태그의 단점을 극복할 수 있게 하는, 웨이크업 기능을 가지는 전지 지원형 RFID 태그 장치 및 그 방법에 관한 것으로, 전력을 공급하기 위한 전원 수단; 전압 승압 수단에서 출력되는 전압을 기준치와 비교하여, 상기 전원 승압 수단의 출력 전압이 기준치 이상이면 상기 전압 승압 수단에서 출력되는 전압이 RFID 태그 장치의 내부 구성 수단으로 인가되도록 스위칭 수단을 제어하고, 상기 전압 승압 수단의 출력 전압이 기준치 미만이면 상기 전원 수단에서 공급하는 전력이 상기 내부 구성 수단으로 제공되도록 상기 스위칭 수단을 제어하기 위한 전압 비교 수단; 및 상기 전압 비교 수단의 제어에 따라, 상기 전압 승압 수단과 상기 전원 수단 중 어느 하나가 상기 내부 구성 수단과 연결되도록 스위칭하기 위한 상기 스위칭 수단을 포함한다. RFID, 전파인식, 태그, 수동형 태그, 웨이크-업 회로, 전지 지원형, 전압 비교기
Abstract:
본 발명은 단백질 상호작용 네트워크(Protein-Protein Interaction Network)에서 이종 단백질들 사이의 유사성을 이용하여 단백질 콤플렉스(Protein Complex)를 탐색하는 방법 및 장치에 관한 것이다. 본 발명에 따른 단백질 상호작용 네트워크에서 콤플렉스를 탐색하는 방법은, (a) 이종 단백질들 사이의 호몰로지 정보를 이용하여, 이종의 콤플렉스에 포함된 단백질들을 해당 종의 단백질로 매핑하여 해당 종에 대한 가상의 콤플렉스를 생성하는 단계; 및 (b) 해당 종의 단백질 상호작용 네트워크에서 생성된 가상의 콤플렉스를 탐색하는 단계를 포함하는 것을 특징으로 한다. 이에 따라, 고비용의 생물학적 실험을 통하지 않고서도 기존의 밝혀진 하등생물의 유전정보를 이용하여 특정 고등생물의 콤플렉스를 자동으로 탐색할 수 있다. 단백질, 콤플렉스, 상호작용, 호몰로지
Abstract:
본 발명은 웹 페이지 색 관리 시스템 및 방법에 관한 것으로서, 페이지 구성요소 분리모듈(10)가 웹 페이지 상에서 보여지는 구성요소를 카테고리별로 분리하면 파라미터 생성모듈(20)가 카테고리별로 분리된 구성요소에 적합한 최적의 파라미터를 생성하며, 색역 사상 모듈(30)가 이 파라미터를 이용하여 웹 페이지 구성요소에 적합한 최적의 색역 사상방법을 인터넷 이용자의 디스플레이 장치에 따라서 제공하여 웹 페이지 구성요소에 대한 색역 압축, 확장 및 변환 기능을 수행하면 시각 순응 모델 적용 모듈(40)가 색역 사상이 적용된 웹 페이지 구성요소의 색 분석을 통하여 인간 시각 순응 모델을 생성한 다음 웹 페이지 구성요소에 대한 색 변환을 수행하고, 선호데이터 적용 모듈(50)이 인간의 시각적 선호 데이터를 적용하여 웹 페이지 구성요소의 영� �과 그래픽을 색 변환시키도록 되어 있으며, 이에 따라서, 웹 페이지 구성요소를 인터넷 이용자의 디스플레이 장치에 최적화된 구성요소로 변환하여 제공함은 물론 더욱 사실적이고, 실감 있는 웹 서핑을 가능케 하는 장점이 있다.
Abstract:
PURPOSE: A system and method for extracting an optimum image using human visual characteristic are provided to extract a picture quality factor, convert and process the extracted factor to reproduce optimum picture quality for a display system. CONSTITUTION: A system for extracting an optimum image using human visual characteristic includes a converter(10) for converting RGB video signals into LCh color spaces, an LCh controller(20) for controlling the value converted from the RGB signals into LCh spaces into an image having optimum colors, and a converter(30) for converting the image into RGB video signals. The system further includes a converter(40) for converting RGB video signals into YPbPr signals, an image control and improving part(50) for controlling the YPbPr signals into an image with high picture quality, and a converter(60) for converting the image into RGB video signals. The system also has a factor extractor(70) for extracting a factor corresponding to the RGB video signals converted by the converter for converting LCh into RGB and extracting a factor corresponding to the RGB video signals converted by the converter for converting YPbPr into RGB.
Abstract:
PURPOSE: A chipset for generating color transform coefficient and a method for controlling the same, and an apparatus for improving the quality of a picture of an HDTV system using the same are provided to easily improve color representation characteristics of an HDTV. CONSTITUTION: A TV signal receiving unit(12) receives digital broadcasting image signals transmitted from a broadcasting station. A preprocessing unit(18) adjusts the size of an image to fit for an actual size of a display device, or executes basic image transform. A color transform coefficient generating chipset(20) generates a color transform coefficient for obtaining the optimum quality of the image of a digital TV and an HDTV. A postprocessing unit(22) transforms the image by using the color transform coefficient obtained from the color transform coefficient generating chipset and a color preference data coefficient obtained from a user. An RGB display unit(16) displays the transformed RGB image on a screen.
Abstract:
PURPOSE: A device for improving image illumination characteristics and picture quality of a digital camcorder using a color display model is provided to enable a process of obtaining an image by a digital camcorder to have visual features of human being, and to use a color display model applier for an inputted image of the digital camcorder, thereby storing high-quality images and compensating distorted images. CONSTITUTION: A CCD image input unit(100) obtains an inputted image of a digital camcorder. An operational mode controller(200) performs a color display operational mode for applying a color display model relating to the inputted image, and transmits color temperature. A color display model applier(300) carries out an adaptation process corresponding to various illuminations, adapts the inputted image to the transmitted color temperature, and converts the adapted image into a visualized image. A color region controller(400) controls color regions of image data converted by the applier(300). An image storage(500) stores the image whose color regions are controlled as an output image of the digital camcorder.