Patent ID: 7836471

Claim:
A satellite DMB receiving apparatus comprising: a selecting unit configured to select a first broadcast channel in a channel list, the channel list comprising a plurality of broadcast channels including the selected first broadcast channel, two second broadcast channels and a plurality of additional broadcast channels, at least one first Walsh code being allocated to the selected first broadcast channel, at least one second Walsh code being allocated to the two second broadcast channels and at least one third Walsh code being allocated to at least some of the plurality of additional broadcast channels, the two second broadcast channels being channels nearest the selected first broadcast channel among the plurality of broadcast channels, and the at least one second Walsh code differing from the at least one first Walsh code; a plurality of demodulators configured to demodulate Walsh encoded data of the selected first broadcast channel and the two second broadcast channels; a plurality of bit de-interleavers configured to de-interleave broadcasting data of the selected first broadcast channel and broadcasting data of the two second broadcast channels; and a broadcasting data channel decoding unit configured to decode broadcasting data of the selected first broadcast channel and broadcasting data of the two second broadcast channels, wherein the selecting unit is positioned between the plurality of bit de-interleavers and the broadcasting data channel decoding unit, wherein at least one of the plurality of additional broadcast channels is allocated to the at least one first Walsh code or to the at least one second Walsh code, wherein the two second broadcast channels comprise an upper broadcasting channel adjacent to the selected first broadcasting channel and a lower broadcasting channel adjacent to the selected first broadcasting channel, and wherein the plurality of bit de-interleavers are further configured to simultaneously bit de-interleave the broadcasting data of the selected first broadcast channel and the broadcasting data of the two second broadcast channels.