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    • 2. 发明专利
    • Broadcast receiver
    • 广播接收器
    • JP2014138230A
    • 2014-07-28
    • JP2013005081
    • 2013-01-16
    • Funai Electric Co Ltd船井電機株式会社
    • HIGASHIDE ATSUSHI
    • H04B1/16H04N5/44H04N5/455
    • PROBLEM TO BE SOLVED: To provide a broadcast receiver in which generation of block noise due to decrease in transmission efficiency of data can be suppressed, even when the signal level of a broadcast signal decreases.SOLUTION: A BD recorder (broadcast receiver) 10 includes a tuner 12 for receiving a broadcast signal containing broadcast data and error correction information, a demodulation circuit 13 for demodulating a broadcast signal received by the tuner 12, and a control unit 16 for, in accordance with the signal level of the broadcast signal received by the tuner 12, adjusting the ratio of broadcast data in the broadcast signal outputted from the tuner 12 to the demodulation circuit 13, and adjusting the width of guard interval being added to the broadcast signal in order to suppress interference of the broadcast signal.
    • 要解决的问题:即使当广播信号的信号电平降低时,也可以提供能够抑制由于数据传输效率降低而产生块噪声的广播接收机。解决方案:BD记录器(广播接收机)10包括 用于接收包含广播数据和纠错信息的广播信号的调谐器12,用于解调由调谐器12接收的广播信号的解调电路13以及控制单元16,用于根据由调谐器12接收的广播信号的信号电平 调谐器12,调整从调谐器12输出到解调电路13的广播信号中的广播数据的比例,并调整加到广播信号上的保护间隔的宽度,以便抑制广播信号的干扰。