| 摘要 |
PURPOSE:To obtain unit information even in a boundary portion by storing in parallel patterns from a recording medium with the prescribed time difference in two sets of double frame memories, and obtaining the information by the logic sum of the frame memories of the sets. CONSTITUTION:Video signals converted to a set of frame memories of A, C and a set of frame memories of B, D are sequentially stored as shown in Figs B and C. When the logic sum of the memories A, B is taken, reference information is displayed as a complete pattern even in the boundary as shown in Fig. D. Similarly, the logic sum can be taken as shown in Fig. E for the memories C, D. |
