Abstract:
A subscriber identity module (SIM) card to be mounted to a terminal device that includes a SIM interface unit, the SIM card including: a first terminal to output a control signal indicating that the SIM card is mounted to the terminal device when the SIM card is mounted to the terminal device; and a second terminal to receive the control signal from the first terminal, and to transmit, to the SIM interface unit, the control signal when the SIM card is mounted to the terminal device.
Abstract:
A system, apparatus and method to control the output of a radio frequency signal in a wireless local area network (LAN) system having an infrastructure. The system includes an access point which periodically transmits a frame including output control information used to control the output of the radio frequency signal, and a wireless terminal apparatus including a wireless transceiver module which receives the frame and a control module which extracts the output control information from the received frame, and controls the output of the radio frequency signal by the wireless transceiver module according to the extracted output control information.
Abstract:
A portable Internet service system includes a plurality of terminals which transmit uplink data for performing wireless communication; and a base station which receives the uplink data from the plurality of terminals, transmits downlink data to the plurality of terminals, and establishes a peer-to-peer function to perform a peer-to-peer transmission between the plurality of terminals.
Abstract:
A wireless communication apparatus including: an antenna; a signal processor which processes and converts a radio frequency (RF) signal received from the antenna into a baseband signal; an antenna connector which interconnects the antenna and the signal processor; a connection check part which checks whether the antenna is connected properly to output a connection check signal; and a system part which receives the connection check signal and executes a predetermined routine according to whether the antenna is connected. Accordingly, an aspect of the present invention provides a wireless communication module capable of accurately detecting connection of an antenna without suffering influence of a test environment.
Abstract:
A device and method to play back contents according to a reception sensitivity, more specifically, a device and method to select a wireless communication system according to the reception sensitivity of wireless signals such as AirTV signals, digital multimedia broadcasting signals and wireless LAN signals, and playing back received multimedia content. The device includes a communication unit receiving multimedia content through a wireless communication device corresponding to a selection instruction message input by a user among one or more wireless communication devices; a reception sensitivity check unit checking the reception sensitivity of the received multimedia content; and an interface unit outputting the received multimedia content according to the reception sensitivity.
Abstract:
A subscriber identity module (SIM) card to be mounted to a terminal device that includes a SIM interface unit, the SIM card including: a first terminal to output a control signal indicating that the SIM card is mounted to the terminal device when the SIM card is mounted to the terminal device; and a second terminal to receive the control signal from the first terminal, and to transmit, to the SIM interface unit, the control signal when the SIM card is mounted to the terminal device.