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    • 3. 发明授权
    • Receiver and receiving method of the receiver
    • 接收机的接收和接收方法
    • US08301208B2
    • 2012-10-30
    • US12472741
    • 2009-05-27
    • Yusaku KatsubeMasaaki YamadaJunichi Takahashi
    • Yusaku KatsubeMasaaki YamadaJunichi Takahashi
    • H04M1/00H04B1/38
    • H04L27/3854H04L7/041H04L27/0014
    • The receiver includes a low noise amplifier, a local signal generator, a first mixer, a second mixer, a first amplifier, a second amplifier, a first A/D converter, a second A/D converter, and a signal level detection unit. A detection signal from at least one terminal of the first A/D converter is supplied to an input terminal of the signal level detection unit, thereby generating a reception start signal from the output terminal. Before an RF reception signal is received, a first signal processing unit containing the first mixer, the first amplifier, and the first A/D converter is controlled to an active state, and a second signal processing unit containing the second mixer, the second amplifier, and the second A/D converter is controlled to a low power consumption state. After the RF reception signal is received, the second signal processing unit is controlled to the active state.
    • 接收机包括低噪声放大器,本地信号发生器,第一混频器,第二混频器,第一放大器,第二放大器,第一A / D转换器,第二A / D转换器和信号电平检测单元。 来自第一A / D转换器的至少一个端子的检测信号被提供给信号电平检测单元的输入端,从而从输出端产生接收开始信号。 在接收到RF接收信号之前,将包含第一混频器,第一放大器和第一A / D转换器的第一信号处理单元控制为有效状态,以及包含第二混频器的第二信号处理单元,第二放大器 并且第二A / D转换器被控制到低功耗状态。 在RF接收信号被接收之后,第二信号处理单元被控制到活动状态。
    • 7. 发明申请
    • POLYMER CLAD OPTICAL FIBER
    • 聚合物光纤
    • US20090196560A1
    • 2009-08-06
    • US12439376
    • 2008-03-14
    • Kenji OkadaJunichi Takahashi
    • Kenji OkadaJunichi Takahashi
    • G02B6/036
    • G02B6/02033G02B6/03605G02B6/03627G02B6/03633
    • A polymer clad optical fiber is provided in which, if the diameter of an inner core is taken as a1, and the diameter of an outer core is taken as a2, and if a ratio X (which=a22/a12) between a cross-sectional area of the inner core and a cross-sectional area of the outer core is within a range of 1.8≦X≦2.2, and if a relative refractive index difference between the inner core and the outer core is taken as Δ1, and if a relative refractive index difference between the outer core and a cladding is taken as Δ2, then for a parameter Y which is defined as Y=Δ1/Δ2, when a high temperature is taken as Ymax and a low temperature is taken as Ymin, a relationship is established in which, when X is within a range of 1.8≦X≦2.0, then 0.25≦Ymin≦0.84X−0.68, and Ymax is 0.25≦Ymax≦0.84X−0.68, and, when X is within a range of 2.0≦X≦2.2, Ymin is 0.48X−0.71≦Ymin≦−2/9X+13/9, and Ymax is 0.48X−0.71≦Ymax≦−2/9X+13/9.
    • 提供一种聚合物包覆光纤,其中如果将内芯的直径取为a1,将外芯的直径作为a2,并且如果将内芯的直径作为a的比例X(= a22 / a12) 内芯的截面面积和外芯的横截面面积在1.8 <= X <= 2.2的范围内,并且如果将内芯和外芯之间的相对折射率差作为Delta1,并且 如果将外芯和包层之间的相对折射率差作为Δ2,则对于定义为Y = Delta1 / Delta2的参数Y,当将高温作为Ymax,将低温作为Ymin时, 建立了当X在1.8 <= X <= 2.0的范围内时,0.25 <= Ymin <= 0.84X-0.68,Ymax为0.25 <= Ymax <= 0.84×-0.68的关系, 当X在2.0 <= X <= 2.2的范围内时,Ymin为0.48X-0.71 <= Ymin <= - 2 / 9X + 13/9,Ymax为0.48X-0.71 <= Ymax <= -2 / 9X + 13/9。
    • 9. 发明申请
    • ARC TUBE AND METHOD OF PHOSPHOR COATING
    • 弧管和磷光涂层的方法
    • US20090134771A1
    • 2009-05-28
    • US12064291
    • 2006-11-01
    • Kenji ItayaToyokazu AmanoJunichi Takahashi
    • Kenji ItayaToyokazu AmanoJunichi Takahashi
    • H01J1/62B05D5/06
    • H01J61/327H01J9/223
    • A method of uniformly applying a phosphor onto the internal surface of a glass tube of spiral configuration having opening at its both ends. After an injection process is performed while glass tube (11) is held with openings (24,25) facing upward, the glass tube is turned upside down and held such that the openings are positioned in the inferior region. While rotating the glass tube around pivot axis (A), the phosphor suspension is caused to flow out. The glass tube is turned upside down once more and held to cause the openings to position in the superior region for a given period of time with the result that the phosphor suspension is caused to flow to uniformize the thickness thereof. Further once more the glass tube is turned upside down to cause the openings to position in the inferior region. In that state, a preliminary drying process is performed.
    • 将荧光体均匀地施加到在其两端具有开口的螺旋构造的玻璃管的内表面上的方法。 在玻璃管(11)保持开口(24,25)朝上的同时进行注射处理之后,将玻璃管上下颠倒并保持使得开口位于下部区域。 在围绕枢转轴线(A)旋转玻璃管时,使荧光体悬浮液流出。 将玻璃管再次翻转并保持使开口在上部位置定位一段时间,结果使荧光体悬浮液流动以使其厚度均匀。 此外,再次将玻璃管倒置以使开口位于下部区域中。 在该状态下,进行预干燥处理。