| 摘要 |
The invention relates to a signal processing apparatus and a signal processing method. The channel unit of the apparatus includes a plurality of channel data sending units to transmit a plurality of sets of channel data to a multiplexing unit. Part of the channel data sending units are connected to the timing signal line so that channel data from these channel data sending units are inserted into empty slots of the timing signals and are transmitted to the multiplexing unit through the timing signal line. The multiplexing unit of the apparatus includes a channel data separating unit for separating the channel data from the timing signals, and a channel data multiplexing unit for multiplexing the channel data transmitted through the data signal line and the channel data separated by the channel data separating unit. With this structure, data can be superposed on the timing signals used for data insertion and data extraction, thereby greatly increasing the number of channels included in the channel unit.
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