| 摘要 |
PURPOSE:To fit an optional picture into the optional position of a video screen without requiring an external address signal by providing a storing element array for storing a picture signal at least for one screen and a line buffer memory for processing the picture signal of one line at high speed. CONSTITUTION:The first line DIN of the picture desired to be inserted is inputted serially and it is written in a read line buffer. At this time, an RCR' signal drops once to L, resets a line address counter to make the address 1. Thereby, a signal phi goes to H and the information of the read line buffer is stored in a field memory. Then, data of the next line is serially inputted again from the DIN and written in the read line buffer. Such a procedure is repeated and all required data is stored in a field memory array. A signal RE' is made L, and a signal SRC' is delayed at least by one pulse from a signal SWC' and inputted, and then, the stored information can be fitted into the picture of a VTR, for instance. |
