Abstract: The present invention relates to a heteroaryl derivative compound and a use thereof. Since the heteroaryl derivative of the present invention exhibits excellent inhibitory activity against EGFR, the heteroaryl derivative can be usefully used as a therapeutic agent for EGFR-associated diseases.

Abstract: A method and apparatus are provided for enabling a user to effectively use a wireless network using a contention free channel access service. The wireless communication method includes receiving a contention free channel access request frame from at least one device in a wireless network in a superframe, and broadcasting a traffic information message including contention free channel access information in the superframe after the contention free channel access request frame is received.

Abstract: A method and apparatus are provided for enabling a user to effectively use a wireless network using a contention free channel access service. The wireless communication method includes receiving a contention free channel access request frame from at least one device in a wireless network in a superframe, and broadcasting a traffic information message including contention free channel access information in the superframe after the contention free channel access request frame is received.

Abstract: A method and apparatus are provided for enabling a user to effectively use a wireless network using a contention free channel access service. The wireless communication method includes receiving a contention free channel access request frame from at least one device in a wireless network in a superframe, and broadcasting a traffic information message including contention free channel access information in the superframe after the contention free channel access request frame is received.

Abstract: A text-input device and method is provided. The device includes a display unit that displays a user interface, which is divided into a plurality of areas each including a plurality of cells where predetermined text is displayed, an input unit that includes a plurality of text-input units to provide a focusing signal that focuses on a predetermined cell in the displayed user interface and a selecting signal that selects the focused cell, a user interface providing unit that generates a control signal corresponding to the selected cell with reference to a mapping table according to whether the selecting signal is available, and a control unit that performs a control command based on the control signal, wherein the plurality of text-input units correspond to the areas.

Abstract: A method and apparatus are provided for enabling a user to effectively use a wireless network using a contention free channel access service. The wireless communication method includes receiving a contention free channel access request frame from at least one device in a wireless network in a superframe, and broadcasting a traffic information message including contention free channel access information in the superframe after the contention free channel access request frame is received.

Abstract: A text-input device and method is provided.

Abstract: A computer system having a wireless input device and a coordinate processing method, where a computer system having a wireless input device inputs coordinate information into a computer or a terminal, the computer system having a wireless input device includes: a signal reflecting device, associated with the wireless input device, to receive and reflect a first signal and one or more second signals, the signals reflected from the signal reflecting device to determine position coordinates of the wireless input device; and a signal processing device to generate and transmit the first signal and the one or more second signals to the signal reflecting device and to determine the position coordinates of the wireless input device associated with the signal reflecting device, based on the returned first and second signals reflected by the signal reflecting device.

Abstract: A computer system includes a computer body and a main board installed in the computer body, the main board having a digital controller configured to support an audio standard interface. The computer system further includes a card unit separated from the computer body, the card unit including a card for conducting at least one of audio and communication functions supporting the audio standard interface, a connection jack electrically connected to the card and adapted to transmit a signal from the card to the digital controller, and a connection port provided on the main board, the connection port being connectable to the connection jack so as to transmit the signal from the connection jack to the digital controller. By this configuration, the computer system can have and retain compatibility with different cards supporting the audio standard interface when one of those cards mounted on the main board is replaced by another one of the cards without any replacement of the main board.

Abstract: The present invention relates to a security system comprising a message sending server to send a message to a user terminal having an identifier (a phone number or an e-mail address); at least one sensor to sense whether an emergency arises; and a controller that previously registers location information of each sensor therein, accesses the message sending server through Internet, and sends the identifier of the user terminal, the location information of the sensor, and emergency information to the message sending server to transmit the location information and the emergency information as the message to the user terminal when the sensor senses that the emergency arises. Thus the present invention provides a security system letting a user to know not only whether an emergency arises but also where the emergency arises.

Abstract: A portable computer having a main body provided with a modem signal processing part and a wireless network communication module includes an external antenna transmitting a radio signal for a wireless data communication with the wireless network communication module, an external modem connector transmitting a modem signal for a modem communication with the modern signal processing part, and a common connector coupling the external modem-connector to the modem signal processing part and the external antenna to the wireless network communication module. With this configuration, the portable computer has a good efficiency of a radio signal transmission and provides an installation space for another hardware components.

Abstract: A computer system is secured by providing a SIM card storing user identification information and a communication module accessing a network with the user identification information stored in the SIM card. A password storage stores the user identification information from the SIM card and a controller allows a user to access the computer system when the computer system is booted if the user identification information stored in the SIM card is identical to the user identification information stored in the password storage, thereby allowing user identification information stored in the SIM card, which is used to access the network, to also be employed as a password for the computer system.

Abstract: A portable computer having a main body provided with a modem signal processing part and a wireless network communication module includes an external antenna transmitting a radio signal for a wireless data communication with the wireless network communication module, an external modem connector transmitting a modem signal for a modem communication with the modem signal processing part, and a common connector coupling the external modem-connector to the modem signal processing part and the external antenna to the wireless network communication module. With this configuration, the portable computer has a good efficiency of a radio signal transmission and provides an installation space for another hardware components.

Abstract: Disclosed is a computer system including a computer body, and a main board installed in the computer body, the main board having a digital controller configured to support an audio standard interface. The computer system further includes a card unit separated from the computer body, the card unit including a card for conducting at least one of audio and communication functions supporting the audio standard interface, and a connection jack electrically connected to the card and adapted to transmit a signal from the card to the digital controller, and a connection port provided at the main board, the connection means being connectable with the connection jack to transmit the signal from the connection jack to the digital controller. By this configuration, the computer system can keep a compatibility of different cards supporting the audio standard interface when one of those cards mounted to the main board is replaced by another one of the cards, without any replacement of the main board.

Abstract: A video conference system used in home automation for performing audio and video conferencing between a personal computer and a video phone as well as remote conference system. The personal computer stores audio/video information of the visitor supplied from the video phone and automatically connects with the remote conference system in response to a bell signal input of the visitor. A subsystem is installed in the video phone for supplying audio/video data of the visitor to a main control system for receiving audio/video information transmitted from the remote conference system over a communication network.

Abstract: A video overlay image converter to perform various functions of shifting, inverting, rotating, and mirroring a picture image as displayed on a personal computer without increasing the load of the CPU, in real time, and with ease, by adding an image converter between the video controller and the image memory of the personal computer. The converter includes a video RAM for storing luminance and chrominance of the picture image; a video controller for storing data on the image memory or controlling the image memory to display data stored in the image memory after reading and outputting it; a converter which can change an image memory space with an address index data of the image memory between the video controller and the image memory; and a first bus transmitter for luminance data and chrominance data, which transmits synchronized image data, and is connected between the video controller and the image memory.