| 摘要 |
<p>PURPOSE:To make it unnecessary to generate newly display information when ever display information to be displayed is changed, by constituting the titled unit so that a second storage means stores display information of every display screen of a display means generated by a display information generating means, and a control means displays the display information stored in the second stor age means on the display means in accordance with a key input. CONSTITUTION:When a screen storage key is inputted, a CPU 1 copies the storage contents of a memory 3, namely, the display contents of a CRT 5, in a memory 7. Also, when a picture recalling key is inputted, OR of the storage contents of the memory 7 and the memory 3 is taken, and it becomes the storage contents of the memory 3. Accordingly, the CRT 5 superposes the storage contents of the memory 7 to the storage contents of the memory 3 and displays it. When a picture switching key is inputted, which auxiliary switching key corresponding to pictures #1-#n is further inputted is decided, and a picture corresponding to the auxiliary switching key to which the key has been inputted is displayed.</p> |
