Patent ID: 7565614

Claim:
A data processing apparatus for generating image data representative of a visually perceptible pattern drawn inside a two-dimensional visualization area by visualizing means being moved therein so as to designate locations in a designated sequence within the area, said data processing apparatus comprising: inputting means for inputting first image data including a plurality of first location data which denote, with a first precision, the locations designated by said visualizing means in said designated sequence within said visualization area; transforming means for transforming said first location data included in said first image data input by said inputting means, into second location data with a second precision lower than said first precision, therein generating second image data, wherein said second precision based upon resolution of an output device; change detecting means which, given said second location data in said second image data generated by said transforming means, detects those pieces of second location data which are changed in keeping with said designated locations being moved, therein generating third image data, including the detected second location data, in said designated sequence; and transmitting means for transmitting said third image data, generated by said change detecting means, in a camera control data part of a communication format.