Television special effects generator.

摘要

A television special effects generator operating on digitally encoded video signals comprises a frame store (1) input addressing means (4) and output addressing means (5). The input addressing means (4) is controlled to Write picture information into the frame store (1) in a desired manner while the output addressing means (5) includes a up/down counter (8) whose count direction can be reversed when a given count is reached. By reversing the up/down counter (8) count direction part by way through a line or field scan on the displayed picture appears in two parts one being the mirror image of the other.