| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna switching device having an antenna input for cable broadcast and an antenna for terrestrial or satellite broadcast, receiving an OOB signal at all times, and freely selecting one channel of the cable broadcast and the terrestrial or satellite broadcast. SOLUTION: The antenna switching device inputs the terrestrial broadcast signal to a selection means, inputs the cable broadcast signal that is split by a split means to an OOB tuner and the selection means, and inputs a signal that is selected by the selection means to an A/D shared tuner. Consequently, the antenna switching device can select one of the cable broadcast and the terrestrial or satellite broadcast, while receiving the OOB signal at all times. COPYRIGHT: (C)2007,JPO&INPIT |
