Importance

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Abstract

A line buffer system can display a large number of objects and a background in connection with the play of a video-type game. The system may be used with a microprocessor. Game data is transmitted from the microprocessor during a brief 'handshake' operation which may occur at any time. The game data specifies the objects and background to be presented and the screen location of each. The objects and background, respectively, are stored as rectangular blocks in two memories. At least two buffers are provided, each buffer capable of storing data to represent one line of the picture. The system operates upon the game data to load the buffers in real time during picture drawing and just prior to picture drawing. One buffer then outputs a data stream to provide real time control of the drawing of one line of a picture. A flip feature provides for inverting any object or an entire picture about a vertical or horizontal axis, or both.

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First Claim