Abstract: A display apparatus, a control method thereof and a control method of an external device are provided. The display apparatus includes a contents processing unit which reproduces contents, a communication unit which communicates with an external device which reproduces contents, and a control unit which receives reproduction information of the contents reproduced in the external device from the external device through the communication unit, and controls the contents processing unit to reproduce contents corresponding to the contents reproduced in the external device, based on the received reproduction information.

Abstract: A signal processing apparatus is provided. The signal processing apparatus includes: a memory unit in which a plurality of channels and Internet addresses corresponding to the channels are stored; a network connecting unit which is connectable to the Internet; and a control unit which controls the network connecting unit to connect to an Internet address corresponding to a channel selected by a user and to receive content provided from the connected Internet address.

Abstract: A wireless network device and a method for reassociation between wireless networks using the wireless network device designed to simplify a reassociation process of the device moving between the wireless networks are provided. The wireless network device includes a first frame transceiver receiving a reassociation request frame from a predetermined device, a device identifier (ID) extractor extracting a device ID from the reassociation request frame, and a first controller determining a reassociation process of the device that has sent the reassociation request frame according to the extracted device ID.

Abstract: A broadcast signal receiving apparatus including a broadcast receiving unit that receives a broadcast signal; a communicating unit that performs communication with a mobile apparatus; a signal converting unit that converts the received broadcast signal; and a controller that controls the signal converting unit to convert the broadcast signal into a format corresponding to the mobile apparatus, and controls the communicating unit to transmit the converted broadcast signal to the mobile apparatus

Abstract: A method for managing a wireless network and a wireless device employing the same are provided. The method for managing a wireless network disassociates a wireless device determined to be disassociatable from the wireless network. Accordingly, since an existing wireless device is forcedly disassociated, the configuration of the wireless network can be artificially changed.

Abstract: An address management method and a device thereof are provided. The address management method includes checking by a device whether logical addresses are currently being used by external devices; and setting by the device a non-use logical address as a logical address of the device regardless of the type of the device, if the device determines that the non-use logical address exists. Therefore, a device may use all logical addresses regardless of its device type, and may also have a logical address even though all logical addresses corresponding to its device type are currently being used.

Abstract: A method of and an apparatus to improve stability and efficiency during data transmission performed over a wireless network includes transmitting a first data frame containing a plurality of data units to a receiving device, receiving from the receiving device a receipt of confirmation for each data unit received by the receiving device, and transmitting a second data frame containing at least one of the plurality of data units that have not been transmitted or received, according to the receipt of confirmation for each data unit received by the receiving device.

Abstract: An apparatus and method for dynamically managing sub-channels are provided. The apparatus includes a sub-channel control module, a sub-channel monitoring module, and a scheduling module. The sub-channel control module provides first channel status information on the status of a previous sub-channel for streaming data transmission and requests second channel status information on the status of a current sub-channel. The sub-channel monitoring module provides the second channel status information to the sub-channel control module at the request of the sub-channel control module. The scheduling module receives the first channel status information and the second channel status information from the sub-channel control module and re-assigns sub-channels for streaming data transmission.

Abstract: A wireless network device and a method for reassociation between wireless networks using the wireless network device designed to simplify a reassociation process of the device moving between the wireless networks are provided. The wireless network device includes a first frame transceiver receiving a reassociation request frame from a predetermined device, a device identifier (ID) extractor extracting a device ID from the reassociation request frame, and a first controller determining a reassociation process of the device that has sent the reassociation request frame according to the extracted device ID.

Abstract: A method for conducting link adaptation without collision in wireless network, includes setting, by a first device constituting a first wireless network, information regarding the power level required for transmitting data from the first wireless network, a priority level, and a notice of link adaptation in a first frame, sending the set first frame wirelessly, receiving a second frame including a response to the sent first frame from a second device constituting a second wireless network having received the first frame, and sending data at the power level that is detailed in the second frame when transmission of data with the power level is permitted.

Abstract: Provided is a wireless local area network (LAN) communication method in the Distributed Coordination Function mode. The method includes (a) setting a predetermined back-off according to the characteristic of data transmitted, and (b) transmitting data if a channel is available at the end of the back-off, and updating the back-off using residual back-off when a channel is used during the back-off. The data transmission throughput can be increased by reducing the back-off according to the characteristic of data to be transmitted. An increase in the data transmission throughput is particularly effective in transmitting real-time data.

Abstract: A method of providing priority-based discriminated services in a wireless LAN environment. More particularly, providing discriminated services while maintaining compatibility with existing 802.11 MAC through a priority index map configured to enable discriminated services. A method of providing priority-based discriminated services in a wireless LAN environment consistent with the present invention includes determining priority ranks for terminals in the wireless LAN environment; and determining backoff times based on the determined priority ranks, and attempting to occupy a channel by sending frames according to the determined backoff times if predetermined channel occupation latency elapses after the transmission of a last frame is completed.