Patent ID: 7233366

Claim:
Apparatus for sending information representing a telop image, comprising: a fill signal input section that is connected to a signal line transmitting fill signals representing color information for each pixel in said telop image and inputs plural pieces of said color information sequentially; a key signal input section that is connected to a signal line transmitting key signals including transparency information indicating a transparency with which each pixel in an image to be synthesized with said telop image is displayed through a corresponding pixel in said telop image and inputs plural pieces of said transparency information sequentially; an association storage section for storing, as a pair for each of a plurality of pixels in said telop image, color information inputted by said fill signal input section and transparency information inputted by said key signal input section; a data compression section for performing data compression on the color information and transparency information for the pixels in said telop image using a pair of color information and transparency information stored in said association storage section as a unit of data; and a sending section for sequentially sending the pairs of color information and transparency information compressed by said data compression section through a common signal line to a receiving apparatus.