| 摘要 |
PURPOSE:To select and display hands having various shapes arbitrarily, by providing a means, which determines clock display patterns in correspondence with time data, reads characters out of a character generator and converts the data into video signals. CONSTITUTION:When the hands of a clock are displayed, a CPU 1 inputs time data, determines the display patterns of the hands corresponding to the time from a program stored in a program ROM 3 in accordance with said data and reads characters out of a character generator 2 in correspondence with said patterns. The characters are written into a video RAM 5 from a video processor 4. The content, which is written in the RAM 5, is outputted as a video signal. The video signal is added to an RGB encoder, which is connected to a the video signal line of a TV receiver. The video signal is displayed on a CRT instead of an image signal. Or the video signal is mixed with the image signal and displayed on the CRT in a superimposed pattern. In this way, the hands which are arbitrarily selected among many kinds of shapes can be displayed simply. |
