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    • 44. 发明授权
    • Multicarrier receiver and transmitter with delay correcting function
    • 具有延迟校正功能的多载波接收机和发射机
    • US07561629B2
    • 2009-07-14
    • US11250951
    • 2005-10-14
    • Tetsuhiko MiyataniTakashi Okada
    • Tetsuhiko MiyataniTakashi Okada
    • H04K1/10
    • H04L27/2626H04L5/06H04L27/2637H04L27/266H04L27/2662
    • A multicarrier receiver that receives N carrier frequencies therein comprises N A/D converters each of which analog-digital converts a receive signal at a sample rate fs for each carrier, N quadrature detectors which receive outputs sent from the N A/D converters therein and digitally quadrature-detect the outputs, respectively, 2N LPFs which allow only desire bands of outputs of the N quadrature detectors to pass therethrough, and N delay time correcting means each of which corrects a processing delay time deviation for each carrier inside the multicarrier receiver in a time unit of less than 1/fs using a fractional delay filter. The delay time correcting means has, for example, an M-stage shift register which operates at fs and generates a delay of M/fs, and a fractional delay filter which operates at fs and includes an even number of tap coefficients and which generates a delay different from M/fs by 0.5/fs.
    • 接收N个载波频率的多载波接收机包括NA / D转换器,每个转换器以每个载波的采样率fs模拟数字转换接收信号,接收从其中的NA / D转换器发送的输出的数字正交的N个正交检测器 分别检测输出,2N个LPF,其仅允许N个正交检测器的输出的期望频带通过;以及N个延迟时间校正装置,每个延迟时间校正装置在一个时间内校正多载波接收机内的每个载波的处理延迟时间偏差 使用小数延迟滤波器小于1 / fs的单位。 延迟时间校正装置具有例如以fs操作并产生M / fs的延迟的M级移位寄存器,以及在fs处操作并包括偶数个抽头系数的分数延迟滤波器,并产生 延迟不同于M / fs 0.5 / fs。
    • 46. 发明申请
    • SIPHON JET TOILET
    • SIPHON喷水洗手间
    • US20080271234A1
    • 2008-11-06
    • US12111701
    • 2008-04-29
    • Takashi OkadaShinji ShibataAkira Kawasaki
    • Takashi OkadaShinji ShibataAkira Kawasaki
    • E03D11/18
    • E03D11/08E03D2201/30
    • A siphon jet toilet for supplying flush water in a storage tank by using the head pressure thereof is disclosed. The siphon jet toilet has a toilet main unit furnished with a bowl portion, a rim water spout, a drain trap passage for expelling waste using siphon action, a jet water spout opening formed at a position opposite the inlet of the drain trap passage, a rim water channel for supplying flush water to the rim water spout opening, and a jet water channel for supplying flush water to the jet water channel. The jet water channel includes a plurality of branched water conduits, a merging portion for causing flush water from the plurality of branched water conduits to merge and swirl toward the jet water spout opening and a flow aligner for aligning the flow of flush water merged in the merging portion. The merging portion including an outer wall portion formed in essentially a straight line so that flush waters in the outer region of the swirl collide head-on and an inner wall portion on which a bent portion is formed so that flush water in the inner region of the swirl flows smoothly toward the jet water spout opening.
    • 公开了一种用于通过使用其头部压力在储罐中提供冲洗水的虹吸喷管。 虹吸喷射马桶具有配备有碗部,轮辋水喷口的抽水马桶主单元,利用虹吸作用排出废物的排水通路,形成在与排水槽通道的入口相对的位置的喷射吐水口, 用于向边缘出水口供给冲洗水的边缘水通道,以及用于向冲洗水通道供给冲洗水的喷射水通道。 射流水通道包括多个分支水管道,用于使来自多个分支水管道的冲洗水合并并向喷射出水口开口旋转的汇合部分,以及流动对准器,用于对齐在 合并部分。 合流部分包括形成在基本上直线上的外壁部分,使得涡流的外部区域中的冲洗水面正面与其上形成有弯曲部分的内壁部分形成冲洗水, 涡流平稳流向射流喷水口。