| 摘要 |
<p>The memory circuit for editing two screens by using a memory to arrange the scenes by a user comprises first and second screen selection switches (SW1,SW2), a number of mode selection switches (SW3-SWn), a microcomputer (11) for receiving horizontal and vertical sync. signals to generate horizontal and vertical address control signals (S1,S2) and reading a second horizontal address from an internal memory to output it, a comparator (9) for comparing the second address with a first horizontal address from a memory controller (8) to generate a coincidence signal (S1), and a memory enable controller (17) for logic-operating the coincidence signal and first and second image memory control signals to generate an image memory (3) enable signal (S4).</p> |
