Patent ID: 7685624

Claim:
A receiver unit used in a community receiving system which redelivers broadcast signals from a plurality of networks, comprising: a redelivering frequency table for holding a redelivering frequency of broadcast signals that are redelivered; means for successively selecting the broadcast signals of said redelivering frequency held by said redelivering frequency table for each of said networks; means for obtaining channel data of a channel included in the network that provides successfully selected broadcast signals among said plurality of networks; means for rearranging the channel data for each of said networks according to a predetermined order; and means for rendering said rearranged channel data to be corresponded to the redelivering frequency of the successfully selected broadcast signals, a frequency conversion table is created for an object network by obtaining network information for the object network, obtaining from the network information a frequency of a system that generates the broadcast signals, and obtaining from the network information a service identifier for each channel associated with the object network, the frequency conversion table is updated when the receiver unit receives an indication that the network information has changed and there is an increase in the number of broadcast signals that are to be redelivered, such that the frequency conversion table is not updated when the receiver unit receives an indication that the network information has changed but there is not an increase in the number of broadcast signals that are to be redelivered.