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    • 4. 发明授权
    • Digital television broadcast signal receiver
    • 数字电视广播信号接收机
    • US07509665B2
    • 2009-03-24
    • US11116382
    • 2005-04-28
    • Toshihiro TakagiMasanori KawaiNaoki Yamamoto
    • Toshihiro TakagiMasanori KawaiNaoki Yamamoto
    • H04N7/20
    • H04N21/4383H04N5/4401H04N5/46H04N21/44209H04N21/6112
    • In a digital TV broadcast signal receiver connected to a multi-directional antenna called smart antenna and receivable not only digital TV broadcast signals but also analogue TV broadcast signals, an optimum signal receiving direction of an analogue TV broadcast signal of an optional channel can be decided with reducing affect of ghost due to reflection of the TV broadcast signal by such as a high-rise building, or the like. An NTSC decoder takes a still image data from an analogue TV broadcast signal in each signal receiving direction of the multi-directional antenna, and performs an A/D conversion processing and a JPEG compression processing to the image data. A controller decides a direction, in which a complexity, such as bit rate of the image data is the smallest, as an optimum signal receiving direction of the channel.
    • 在连接到称为智能天线的多向天线并且不仅可接收数字电视广播信号而且可接收模拟TV广播信号的数字电视广播信号接收机中,可以决定可选频道的模拟TV广播信号的最佳信号接收方向 由于诸如高层建筑物等的电视广播信号的反射而影响鬼影响。 NTSC解码器在多方向天线的每个信号接收方向上从模拟TV广播信号获取静止图像数据,并对图像数据进行A / D转换处理和JPEG压缩处理。 控制器决定诸如图像数据的比特率的复杂度最小的方向作为信道的最佳信号接收方向。
    • 7. 发明申请
    • Digital television broadcast signal receiver
    • 数字电视广播信号接收机
    • US20050246744A1
    • 2005-11-03
    • US11116383
    • 2005-04-28
    • Toshihiro TakagiMasanori KawaiNaoki Yamamoto
    • Toshihiro TakagiMasanori KawaiNaoki Yamamoto
    • H04B1/16H04B7/08H04B7/10H04N5/44H04N9/65
    • H04N5/4401H04B7/0808H04N21/4263H04N21/42638H04N21/4384H04N21/44209
    • In a digital TV broadcast signal receiver connected to a multi-directional antenna called smart antenna, having a first number, for example, sixteen of signal receiving directions defined in a technical standard such as EIA-909, a simplified multi-directional antenna having a second number, for example, four or eight signal receiving directions smaller than the first number is connectable. When a multi-directional antenna is connected, an initial processing is performed for confirming a number of signal receiving directions of the multi-directional antenna. When the multi-directional antenna is simplified one, the digital TV broadcast signal receiver treats the signal receiving directions more than two showing substantially the same signal sensing conditions as the same direction. Therefore, a number of times for switching the effective signal receiving direction of the multi-directional antenna can be reduced without switching indistinctive signal receiving directions in practice.
    • 在连接到称为智能天线的多方向天线的数字电视广播信号接收机中,具有第一数量,例如,诸如EIA-909的技术标准中限定的十六个信号接收方向,简化的多方向天线具有 例如,可以连接四个或八个小于第一数字的信号接收方向。 当连接多方向天线时,执行用于确认多方向天线的信号接收方向的数量的初始处理。 当简化多方向天线时,数字电视广播信号接收机处理信号接收方向两个以上,显示与相同方向基本相同的信号感测条件。 因此,实际上可以减少用于切换多方向天线的有效信号接收方向的次数,而不会改变不明显的信号接收方向。
    • 9. 发明授权
    • Video signal processing apparatus and set top box
    • 视频信号处理装置和机顶盒
    • US08316391B2
    • 2012-11-20
    • US12820493
    • 2010-06-22
    • Masanori Kawai
    • Masanori Kawai
    • H04N7/16H04N7/173
    • H04N21/440263H04N21/4122H04N21/442
    • This video signal processing apparatus includes a first resolution conversion portion, a first analog video output portion, a digital video output portion and a control portion. The control portion is so formed as to make the first resolution conversion portion convert a video signal to a digital video signal of high definition and make the digital video output portion output the digital video signal of the high definition when recognizing that connection between the digital video output portion and a display is in an on-state, also in a case where a broadcast signal includes a signal for restricting output of the video signal of the high definition.
    • 该视频信号处理装置包括第一分辨率转换部分,第一模拟视频输出部分,数字视频输出部分和控制部分。 控制部分被形成为使得第一分辨率转换部分将视频信号转换成高分辨率的数字视频信号,并且当识别数字视频之间的连接时,数字视频输出部分输出高分辨率的数字视频信号 输出部分和显示器处于开启状态,广播信号也包括用于限制高清晰度的视频信号的输出的信号的情况。
    • 10. 发明授权
    • Digital broadcasting receiver
    • 数字广播接收机
    • US07757255B2
    • 2010-07-13
    • US11474969
    • 2006-06-27
    • Toshihiro TakagiMasanori Kawai
    • Toshihiro TakagiMasanori Kawai
    • H04N7/10
    • H04N5/50H04H20/26H04H60/73H04N5/4401H04N21/4345H04N21/4383
    • A digital broadcasting receiver includes an operating section configured to select a channel, and a video/audio data obtaining section configured to obtain video/audio data on a selected channel from television broadcasting signals. The digital broadcasting receiver also includes a channel table and a designated channel table. The digital broadcasting receiver further includes a channel selecting section configured such that when the channel is selected by the operating section, the channel selecting section determines whether or not the selected channel has been replaced with an alternative channel by a broadcasting station by reference to the two tables. If it is determined that the selected channel has been replaced with the alternative channel, the channel selecting section instructs the video/audio data obtaining section to select the alternative channel instead of the selected channel.
    • 数字广播接收机包括被配置为选择频道的操作部分和被配置为从电视广播信号获得所选频道上的视频/音频数据的视频/音频数据获取部分。 数字广播接收机还包括信道表和指定信道表。 数字广播接收机还包括一个频道选择部分,被配置成当由操作部分选择该频道时,频道选择部分通过参考两者来确定所选频道是否被替换频道被广播电台替代 表。 如果确定所选择的频道已被替换频道替换,则频道选择部分指示视频/音频数据获取部分选择替代频道而不是选择的频道。