| 摘要 |
PROBLEM TO BE SOLVED: To provide a retransmitter capable of reducing bandwidth when a digital broadcast signal is retransmitted. SOLUTION: An apparatus 10 which receives digital broadcast signals comprised of a plurality of segments from a plurality of broadcasting stations and transmits an ISDB-T signal on the basis of the received signals, is provided with a plurality of receiving parts 200 for receiving digital broadcast signals by channels; a carrier selection circuit 203 for selecting at least one of segments in the received digital broadcast signals, by channels, on the basis of a preset segment number; a segment delay control circuit 301 for carrying out synchronization of selected signals; a carrier symbol composition circuit 303 for converting phases of carriers constituting a synchronized segment by channels and connecting a plurality of phase-converted carriers; and a transmission conversion circuit 305 for transmitting a connected signal from a predetermined channel that is different from the channel. COPYRIGHT: (C)2006,JPO&NCIPI |
