| 摘要 |
PROBLEM TO BE SOLVED: To multiplex data of arbitrary length into a limited part like a header part by storing a memory with arriving parallel data of arbitrary length, and reading them out in predetermined order and outputting them as serial data. SOLUTION: A multiplexing circuit 1 inputs transmitted data A from an input terminal 3 and information data C outputted from a data control circuit 2 and multiplexes the information data C into the header part of each frame. A data control circuit 2 stores a previously allocated memory with arriving parallel data E1, E2Rv of arbitrary length and monitors whether or not the data are stored in the memory. When the data are stored in the memory, the data are read out of the memory in predetermined order (in preferential order), and outputs them as serial data and deletes the data having being sent from the memory. The data of the arbitrary data when stored in the memory are adjusted to specific data length and they are read out sequentially and transmitted as the serial data, so that the data are multiplexed. |
