Abstract: An encoding apparatus of a video security system in which a stream to be stored in a storage medium and a stream to be transmitted through a network may be simultaneously or separately generated using one encoding chip. The encoding apparatus includes an image encoding unit which encodes an input image, received from a surveillance camera, selectively under at least one of an advanced video coding (AVC) scheme complying with an H.264/AVC standard to generate and store an AVC-encoded image in a storage medium, and a scalable video coding (SVC) scheme complying with the H.264/AVC standard to generate and transmit an SVC-encoded image to a network.

Abstract: Provided are a server, a system, and a method of distributing a load caused by health checks in a dynamic domain name server (DDNS) by separating a health check unit which causes the most load on the dynamic domain name server and a unit for processing a client query and registering equipment. The dynamic domain name server (DDNS) includes a main dynamic domain name server (DDNS that registers an identifier and a dynamic IP address for a piece of the equipment and responds to a client query request with the dynamic IP address of the piece of equipment; and at least one sub-DDNS for updating a status of the piece of equipment in response to a status notifying message sent from the piece of equipment.

Abstract: An encoding apparatus of a video security system in which a stream to be stored in a storage medium and a stream to be transmitted through a network may be simultaneously or separately generated using one encoding chip. The encoding apparatus includes an image encoding unit which encodes an input image, received from a surveillance camera, selectively under at least one of an advanced video coding (AVC) scheme complying with an H.264/AVC standard to generate and store an AVC-encoded image in a storage medium, and a scalable video coding (SVC) scheme complying with the H.264/AVC standard to generate and transmit an SVC-encoded image to a network.

Abstract: Provided are a server, a system, and a method of distributing a load caused by health checks in a dynamic domain name server (DDNS) by separating a health check unit which causes the most load on the dynamic domain name server and a unit for processing a client query and registering equipment. The dynamic domain name server (DDNS) includes a main dynamic domain name server (DDNS that registers an identifier and a dynamic IP address for a piece of the equipment and responds to a client query request with the dynamic IP address of the piece of equipment; and at least one sub-DDNS for updating a status of the piece of equipment in response to a status notifying message sent from the piece of equipment.