| 摘要 |
PURPOSE:To easily add a new service classification by increasing an input buffer memory and a sending awaiting buffer memory as one unit for a service classification. CONSTITUTION:Input buffer memories 24 and 24 are provided for a service classification and three types of an input buffer memory 24', sending buffer memories 22'1-22'n and sending awaiting buffer memories 23'1-23'n are constructed to be able to be increased (part surrounded with a broken line in the figure) as a unit. In short, out of an (n) number of groups, when a certain group is changed from a tone only service to a figure displaying service, or the service-in is executed for the group unused until then, these memories are increased. By such a construction, another service different in signal speed can be easily added. |
