Abstract: A display apparatus includes an input/output interface connected to an external device and an input device, a memory, a first processor connected to the memory, and a second processor configured to be recognized as a universal serial bus (USB) device by the external device. The first processor generates a first image related to a function of the display apparatus, and a second image based on image data obtained from the external device, and controls the display to display the first image and the second image together. The first processor obtains an input signal from the input device, and based on a cursor corresponding to the input signal being located on the second image, provides the input signal to the second processor, and the second processor provides the input signal to the external device.

Abstract: A method of providing a routing protocol in a sensor network includes the steps of: initializing a routing table and searching a network device of a node to initialize a host; opening a socket when there is a request for forwarding of an IP (Internet Protocol) packet from an upper layer or when there is a request through the network device; determining whether there is the IP packet forwarding request of the upper layer node or whether the packet is received from the network device; if there is the IP packet forwarding request of the upper layer, searching the routing table, and determining whether or not there is a destination node which intends to transmit the packet, and returning to a main loop if there is the destination node; and if the packet is received through the network device, determining types of the received packets and performing RREQ (route request) process, IDLE process, RREP (route reply) process, RERR (route error) process, and RREP_ACK (route reply acknowledgement) process.

Abstract: The present invention relates to a method of providing a routing protocol in a sensor network. The routing protocol is a new model which is made considering a battery efficiency so that an AODV protocol, which is widely used because of its simplified and reliable algorithm, can be matched to a sensor condition. An energy information of a node is contained in the RREQ message of the AODV, thereby allowing the neighboring nodes and the nodes on the path to know their energy states.