FACE COATING SYSTEM OF PATTERN

PURPOSE:To process at a high speed, by using a picture data processing circuit to control a pattern data, then giving both initiation address and termination address of a pattern when the face coating is applied to the pattern of a picture memory. CONSTITUTION:A graphic data fed from a host computer is sotred to a data buffer 11. An arithmetic control circuit 12 reads the graphic data out of the buffer 11, sets address data to X and Y address registers 13 and 14 and also calculates both initiation and termination addresses of a face coated pattern from the graphic data. Then, these initiation and termination addresses are set to a picture data processing circuit 16. The outputs of the registers 13 and 14 are applied to a picture memory 17 via an address converting circuit 15 to receive an access. Then the corresponding data is read out of the circuit 16.