| 摘要 |
PURPOSE:To prevent the overlap of output timings between a stored command and a real time command by storing once the real time command into a first-in first-out data buffer, reading and outputting the command again in a timing synchronously with the output timing of the stored command without contention. CONSTITUTION:The unit is provided with a timing generating circuit 4, which generates a timing signal synchronously with the timing specific to its own equipment as a timing signal reading out the content of a data buffer 6 at a time zone not overlapped with the output of the time zone when a stored command is outputted. A real time command sent from a ground station passes through a command reception decoding circuit 5 and written once in the data buffer 6 in the timing received from a satellite. The read of the real tome command from the data buffer 6 is implemented by the command written earlier and the readout timing is controlled by a timing generating circuit 4 relating to the output of the real time command. Thus, the output timing of the stored command and the real time command is outputted without being overlapped. |
