Abstract: An image signal processor includes a register and a disparity correction unit. The register stores disparity data obtained from a pattern image data that an image senor generates, and the image sensor includes a plurality of pixels, and each of the pixel includes at least a first photoelectric conversion element and a second photoelectric conversion element. The image sensor generates the pattern image data in response to a pattern image located at a first distance from the image sensor. The disparity correction unit corrects a disparity distortion of an image data based on the disparity data to generate a result image data, and the image senor generates the image data by capturing an object.

Abstract: Disclosed is an authentication method between a mobile node (MN) and a home agent (HA) in a wireless communication system supporting packet communication. The wireless communication system includes the HA, a foreign agent (FA) connected to which the MN assigned a Mobile IP address, and first and second servers provided respectively to the HA and the FA for authentication. Upon receiving a Registration Request message from the MN, the FA generates an Access Request message and transmits the generated Access Request message to the first server through the second server. Upon receiving the Access Request message, the first server generates an authentication shared key with a preset number and transmits the generated authentication shared key to the FA through the second server. The FA authenticates the Registration Request message according to the authentication shared key and transmits the authenticated Registration Request message to the HA.

Abstract: Disclosed is an authentication method between a mobile node (MN) and a home agent (HA) in a wireless communication system supporting packet communication. The wireless communication system includes the HA, a foreign agent (FA) connected to which the MN assigned a Mobile IP address, and first and second servers provided respectively to the HA and the FA for authentication. Upon receiving a Registration Request message from the MN, the FA generates an Access Request message and transmits the generated Access Request message to the first server through the second server. Upon receiving the Access Request message, the first server generates an authentication shared key with a preset number and transmits the generated authentication shared key to the FA through the second server. The FA authenticates the Registration Request message according to the authentication shared key and transmits the authenticated Registration Request message to the HA.