Patent ID: 8078991
Filing Date: 2011-12-13
Classification: H04N

Abstract:
1. An electric appliance comprising: a display unit that allows frame display; a data storage unit for storing frame data for forming frames and pane data for generating pane images to be displayed in the frames; a frame data acquisition unit for acquiring frame data from the data storage unit; a pane data acquisition unit for acquiring, from the data storage unit, pane data specified by specific information of the frame data acquired by the frame data acquisition unit; a pane image generation unit for generating pane images from the pane data acquired by the pane data acquisition unit; a graphical image generation unit for forming frames based on the frame data acquired by the frame data acquisition unit, arranging the pane images generated by the pane image generation unit in the frames, generating a graphical image thereby, and allowing the display unit to display the graphical image; a frame data storage unit for storing the frame data used for the display on the display unit; a pane image storage unit for storing the pane images used for the display on the display unit; and a display control unit that, when the frame data acquisition unit acquires frame data to be used for subsequent display on the display unit, compares the frame data acquired by the frame data acquisition unit with the frame data stored in the frame data storage unit to select one of pane data to be acquired by the pane data acquisition unit and pane images to be acquired by the graphical image generation unit from the pane image storage unit; wherein the display control unit includes: a specific information determination unit for determining whether specific information of the frame data to be used for the subsequent display is equal to the specific information of the frame data stored in the frame data storage unit; a pane data selection unit for allowing the pane data acquisition unit to acquire pane data corresponding to the specific information of the frame data for use in the subsequent display when said specific information is determined to be different from the specific information of the frame data stored in the frame data storage unit by the specific information determination unit; a pane image selection unit for allowing the graphical image generation unit to acquire, from the pane image storage unit, pane images of pane data corresponding to the specific information of the frame data stored in the frame data storage unit when the specific information of the frame data for use in the subsequent display is determined to be equal to the specific information of the frame data stored in the frame data storage unit by the specific information determination unit; a unique identification value calculation unit that calculates a unique identification value of the specific information; wherein the specific information determination unit determines whether the specific information of the frame data to be used for the subsequent display is equal to the specific information of the frame data stored in the frame data storage unit on the basis of a comparison between unique identification values of the two pieces of specific information, the unique identification values being calculated by the unique identification value calculation unit; and the unique identification value calculation unit calculates a hash value as the unique identification value of the specific information.