| 摘要 |
PROBLEM TO BE SOLVED: To continuously supply television broadcast signals to a terminal side even when millimeter waves are temporarily shut off manually or the like in a millimeter wave transmitting/receiving system for wirelessly transmitting the television broadcast signals. SOLUTION: A millimeter wave receiving apparatus determines, based on the signal level of the television broadcast signal, whether a millimeter wave has been stopped or not. When it is determined that the millimeter wave has been stopped (S120-YES), by transmitting a backup transmission request to a transmitting apparatus, the television broadcast signal of a broadcast channel being received by a terminal-side television receiver is backup-transmitted from the transmitting apparatus using a radio wave of 2.4 GHz or 5 GHz (S150). The backup-transmitted television broadcast signal is restored to an original signal format (S160) and transmitted to the terminal side (S170). COPYRIGHT: (C)2010,JPO&INPIT |
