| 摘要 |
PURPOSE:To obtain a portable Telop device which is small in size and light in weight and has no effect of mechanical vibrations, by electrically reproducing still picture information accumulated in a magnetic bubble cassette. CONSTITUTION:Video signals, such as character patterns written on Telop cards, etc., are converted into signals of logical levels at a video signal processing circuit 200 and stored in a storage device after character patterns of each line are discriminated by a writing circuit 300. When the signals are outputted, they are read out from a main track reading out circuit 600 and main track outputting circuit 700. The storage device requires two pictures A and B and, in addition, another picture C for the storage capacity of a magnetic bubble cassette 520. The content of the magnetic bubble cassette is stored in the above- mentioned picture C under the control of a microcomputer 510. The content of the picture C is inputted into a monitor reading out circuit 530 and the writing circuit 300, and, thereafter, processed in the same way as video signals. |
