摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A computer system including that restricts access of an unauthorized. The computer system preferably includes: a system unit; an identification information storage unit storing user identification information about a user of the computer system; a communication unit communicating with a service server storing user authentication information about the user of the computer system; and a controller receiving the user authentication information corresponding to the user identification information through the communication unit and controlling the system unit to perform a selective operation on the basis of the user authentication information.
摘要:
A computer system includes a first communication unit which communicates with an authentication module storing preset first authentication information, a second communication unit which is connected with a server through a network, the server storing preset second authentication information, a main board unit which implements a preset first operation of a computer, and a controller which receives the first authentication information from the authentication module through the first communication unit, receives the second authentication information corresponding to the first authentication information from the server through the second communication unit, and controls the main board unit to block implementation of the first operation when at least one of the first authentication information and the second authentication information is not received.
摘要:
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.
摘要:
A computer system includes a first communication unit which communicates with an authentication module storing preset first authentication information, a second communication unit which is connected with a server through a network, the server storing preset second authentication information, a main board unit which implements a preset first operation of a computer, and a controller which receives the first authentication information from the authentication module through the first communication unit, receives the second authentication information corresponding to the first authentication information from the server through the second communication unit, and controls the main board unit to block implementation of the first operation when at least one of the first authentication information and the second authentication information is not received.
摘要:
A computer system including that restricts access of an unauthorized. The computer system preferably includes: a system unit; an identification information storage unit storing user identification information about a user of the computer system; a communication unit communicating with a service server storing user authentication information about the user of the computer system; and a controller receiving the user authentication information corresponding to the user identification information through the communication unit and controlling the system unit to perform a selective operation on the basis of the user authentication information.
摘要:
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.
摘要:
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