发明名称 VIDEO SIGNAL REPRODUCTION DEVICE
摘要 PROBLEM TO BE SOLVED: To provide an excellent video reproduction device that can prevent adverse effect on a human body in advance on the occurrence of a flickered video image. SOLUTION: The video signal reproduction device is provided with an output amplifier 13 that amplifies a received video signal and outputs the amplified signal, a video encoder section 12 that extracts a luminance component of the video signal, an APL detection section 14 that averages the luminance component in prescribed timing to generate an APL signal, and a control section 15 that compares the level of the APL signal with a prescribed upper limit level and with a prescribed lower limit level, counts the number of times when the level of the APL signal is deviated from a range between the upper limit level and the lower limit level in a prescribed time and controls the gain of an output amplifier 13 decreasingly when the count result exceeds a prescribed value.
申请公布号 JP2001136463(A) 申请公布日期 2001.05.18
申请号 JP19990318973 申请日期 1999.11.10
申请人 TOSHIBA CORP 发明人 MARUYAMA KOJI
分类号 G09G5/00;G09G5/377;H04N5/445;H04N5/57;(IPC1-7):H04N5/57 主分类号 G09G5/00
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