| 摘要 |
<p>PURPOSE: To provide the time division multiplex voice storage transmission device in which storage and transmission of a digital voice signal are attained by having only to set a data address to a 2-port memory. CONSTITUTION: Data received from a time division multiplex line are converted into parallel data and stored in a memory 12, and the stored data are read and converted into serial data, which are sent to the time division multiplex line. The operating timing of the circuit is generated by a counter 24, and a read/write address of the memory 12 is generated by combining data read from a 2-port memory 15 with an output of the counter 4 for each time slot of the time division multiplex line. A controller 16 sets high-order bits of the memory address periodically to the 2-port memory by a controller 16 to allow received data to be stored in an optional address of the memory commanded by the controller and the data stored in the memory are sequentially sent.</p> |
