United Microelectronics Corp.

Frank Chu

Alex Tang

An apparatus for generating pictures comprising a memory device, an address generator, a vertical position detector, a register, a horizontal position counter, a processor and a state machine. Pictures shown in the display are formed based on image parameters stored in the memory device. These parameters are read from memory by controlling the address generator. The parameters read from memory are then processed by the processor before being output to the display. The vertical position detector and the horizontal position counter are provided for controlling the parameter processing. Control signals are generated in the state machine to control the apparatus. By splitting pictures into image cells and skillfully arranging corresponding parameters, colorful pictures with various layer levels are effectively shown in the display.

Generating multilayered pictures by image parameters

A cascaded apparatus of graphic processors for cascading a main graphic processor and at least one secondary graphic processor comprising a clock generator for generating the clock signal to control the timing and synchronize the all the actions; a pixel synchronizer for synchronizing the color codes and layer codes; a layer comparator for comparing the level of layer codes; a mode selector for selecting the mode; a cascade controller for comparing the layer and outputting the color codes; and a color code output device which determines the output of color codes.

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Hsinchu Hsien, Taiwan

Frank Chu