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公开(公告)号：US20170288924A1
公开(公告)日：2017-10-05
申请号：US15513889
申请日：2015-07-31
发明人： Aki KAIZU , Masataka IMAO , Eiji MATSUO
CPC分类号： H04L27/22 , H03L7/08 , H04B1/0007 , H04L7/0066 , H04L7/04 , H04L25/49
摘要： A receiving device includes: a receiver that receives a signal including PPM symbols; a clock generator that generates a clock for sampling; an A/D converter that digital-converts the received signal; a reference position detector that detects a leading position of the PPM symbols based on data from the A/D converter; and a clock error detector that detects a clock error. The clock error detector includes: a pulse position detector that detects a pulse position in the PPM symbols based on data from the reference position detector and A/D converter; a position error calculator that calculates a deviation of the pulse position based on data from the reference position detector, A/D converter, and pulse position detector; and a clock error calculator that calculates the clock error based on data from the position error calculator. The receiving device varies a frequency of the clock based on data from the clock error calculator.
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公开(公告)号：US20150010046A1
公开(公告)日：2015-01-08
申请号：US14323668
申请日：2014-07-03
发明人： Aki KAIZU , Yukihiro KADOTA , Tsutomu ASAHINA , Daisuke SHIMBO
CPC分类号： H04B7/0885 , H04B7/082 , H04B7/0842 , H04L1/04 , H04L1/0631 , H04L1/20 , H04L5/0048 , H04L25/0204 , H04L27/01
摘要： A digital broadcast receiver receives a digital broadcast signal through a plurality of antennas, orthogonally demodulates the received signals, performs channel estimation by detecting a delay profile from a known signal included in each of the orthogonally demodulated signals, and uses the channel estimation results to equalize data signals included in the orthogonally demodulated signals. The delay profiles are also used to estimate the signal quality of each of the equalized data signals by determining the power of the signal component and the power of the noise component in each delay profile and calculating a signal to noise ratio. Diversity combining is performed by weighting the equalized data signals on a basis of their estimated signal quality.
摘要翻译： 数字广播接收机通过多个天线接收数字广播信号，对接收到的信号进行正交解调，通过从包括在每个正交解调信号中的已知信号检测延迟分布来进行信道估计，并使用信道估计结果来均衡 包括在正交解调信号中的数据信号。 延迟分布还用于通过确定每个延迟分布中的信号分量的功率和噪声分量的功率并计算信噪比来估计每个均衡数据信号的信号质量。 通过基于其估计的信号质量对均衡的数据信号进行加权来执行分集组合。
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公开(公告)号：US20170076643A1
公开(公告)日：2017-03-16
申请号：US15123574
申请日：2015-01-19
发明人： Aki KAIZU , Eiji MATSUO , Masashi KAMIYA
CPC分类号： G09F7/22 , B60N3/023 , G06F1/16 , G06F3/147 , G09F9/30 , G09F9/35 , G09F21/04 , G09F23/00 , G09F23/04 , G09F27/005 , G09F2007/005 , G09F2007/186 , G09F2007/1865 , G09G3/001 , G09G3/3406 , G09G5/00 , G09G5/003 , G09G5/14 , G09G2320/068 , G09G2330/022 , G09G2354/00
摘要： A hanging-strap information display device is a device provided in a hanging strap (10) including a hanging band part (11) hung in a movable body in a swingable manner and a hold part (12) provided on the hanging band part, and includes a display unit (14) disposed at a position that squarely faces a passenger that grips the hold part (12), a support shaft part (13) that supports the display unit (14) on the hanging band part (11) in a rotatable manner about a rotation center line, a weight (15) provided on a lower side in a vertical direction than the rotation center line of the display unit (14), and resonance reduction members (16, 17) that is connected between the hanging band part (11) and a position away from the rotation center line of the display unit (14) and reduces resonance of the display unit (14).
摘要翻译： 挂带信息显示装置是设置在悬挂带（10）中的装置，其包括悬挂在可移动体中的悬挂带部分（11）和设置在吊带部分上的保持部分（12），以及 包括设置在正对着抓握保持部件（12）的乘客的位置的显示单元（14），支撑轴部分（13），其将悬挂带部分（11）上的显示单元（14）支撑在支撑部分 围绕旋转中心线旋转的方式，设置在垂直方向上的下侧的重物（15）比显示单元（14）的旋转中心线，以及共振减小构件（16,17），其连接在悬挂 带状部分（11）和远离显示单元（14）的旋转中心线的位置，并减少显示单元（14）的共振。
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