| 摘要 |
PROBLEM TO BE SOLVED: To provide a receiving control device of a television set for vehicles which can select the highest one of receiving sensitivity out of a plurality of antennas, and output the antenna signal to a plurality of television receiving sets. SOLUTION: The receiving control device 1 of the television set for vehicles comprises an antenna switching part 3 which selects and switches a desired antenna out of antennas 2; a variable gain amplifier 4 which amplifies an antenna signal of the selected antenna according to a number of television receiving sets in a receiving condition; a distribution part 5 which distributes the amplified antenna signal to television receiving sets in the receiving condition; and a diversity control part 7 which establishes a set out of television receiving sets in the receiving condition as a television receiving set for detection of receiving sensitivity, and controls to transmit an antenna switching signal based on a video signal from the television receiving set for detection of receiving sensitivity to the antenna switching part 3. COPYRIGHT: (C)2006,JPO&NCIPI
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