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    • 3. 发明授权
    • FM tuner
    • FM调谐器
    • US07885628B2
    • 2011-02-08
    • US12222023
    • 2008-07-31
    • Keiji Kobayashi
    • Keiji Kobayashi
    • H04B1/10
    • H04B1/109H04B1/1027H04B1/1081H04B1/1661H04B2001/1045
    • An FM tuner that has a multipath reception detection unit and an adjacent-channel interference detection unit while reducing expansion of the scale of the circuit is available. A control signal for a stereo separation level is generated on the basis of a signal SM-DC corresponding to a reception field strength and of a signal SMP corresponding to a multipath noise component. The SMP is extracted from a fluctuation component signal SM-AC from an S-meter circuit 92 by a multipath noise extraction circuit 104. The multipath noise extraction circuit 104 used for control of the stereo separation level is shared as a portion of the circuitry for detecting the multipath signal reception state. A multipath reception detection unit 108 compares the SMP with a threshold value to detect a multipath reception state.
    • 具有多径接收检测单元和相邻信道干扰检测单元的FM调谐器可以减少电路规模的扩展。 基于对应于接收场强的信号SM-DC和对应于多路径噪声分量的信号SMP产生用于立体声分离电平的控制信号。 通过多路径噪声提取电路104从S计电路92的波动分量信号SM-AC中提取SMP。用于控制立体声分离电平的多路径噪声提取电路104作为电路的一部分共享 检测多径信号接收状态。 多径接收检测单元108将SMP与阈值进行比较,以检测多路径接收状态。
    • 6. 发明授权
    • Slice circuit capable of accurate conversion of an analog signal to a digital signal
    • 切片电路能够将模拟信号精确地转换成数字信号
    • US06686861B1
    • 2004-02-03
    • US10351483
    • 2003-01-27
    • Keiji KobayashiHisayasu Satoh
    • Keiji KobayashiHisayasu Satoh
    • H03M112
    • H03K5/082H03K5/003H04L25/061H04L27/142
    • A slice circuit includes a DC component adjusting circuit, an integrator, a low pass filter, and a comparator. The DC component adjusting circuit adjusts only a DC component in an input signal sent from an input terminal to produce a DC component having a uniform voltage level. The integrator amplifies only a high frequency component of or above a predetermined frequency in the input signal received from the DC component adjusting circuit. The low pass filter detects an average voltage of the input signal received from the DC component adjusting circuit. The comparator compares a voltage of the output signal sent from the integrator with a voltage of an output signal sent from the low pass filter, and provides a digital signal having a logical level corresponding to results of the comparison to an output terminal.
    • 片电路包括直流分量调节电路,积分器,低通滤波器和比较器。 直流分量调整电路仅调整从输入端子发送的输入信号中的直流分量,以产生具有均匀电压电平的直流分量。 积分器只放大从DC分量调节电路接收的输入信号中的预定频率以上的高频分量。 低通滤波器检测从直流分量调整电路接收的输入信号的平均电压。 比较器将从积分器发送的输出信号的电压与从低通滤波器发送的输出信号的电压进行比较,并将具有与输出端比较的逻辑电平对应的逻辑电平提供给数字信号。
    • 8. 发明授权
    • Ultraviolet-curable silicone composition for regulating peel strength
    • 用于调节PEEL强度的超紫外线可固化硅氧烷组合物
    • US5198476A
    • 1993-03-30
    • US722566
    • 1991-06-27
    • Keiji KobayashiKatsuya Kanemaru
    • Keiji KobayashiKatsuya Kanemaru
    • C08G59/18C08F2/50C08G59/00C08G59/20C08G59/30C08G59/68C08L63/00C08L83/06C09D183/06
    • C08L83/06C09D183/06
    • An ultraviolet-curable silicone composition comprising(A) 100 parts by weight of an epoxy-functional polyorganosiloxane which comprises structural units represented by the formula R.sup.1 R.sup.2 SiO, wherein R.sup.1 represents hydrogen atom or a monovalent hydrocarbon group and R.sup.2 represents hydrogen atom, a monovalent hydrocarbon group, or a monovalent epoxy-functional organic group, and in which at least two of all the organic groups are a monovalent epoxy-functional organic group;(B) from 1 to 80 parts by weight of at least one copolymer for regulating peel strength, which is soluble in component (A), selected from the group consisting of (i) a copolymer represented by a unit structure of MQ or M.sup.A Q, (ii) a copolymer represented by a unit structure of M.sup.A T, MT.sup.A or M.sup.A T.sup.A, and (iii) a copolymer represented by a unit structure of M.sup.A DQ, MD.sup.A Q or M.sup.A D.sup.A Q, wherein M represents an R.sup.3.sub.3 SiO.sub.1/2 unit, M.sup.A represents an R.sup.3.sub.2 R.sup.4 SiO.sub.178 unit, D represents an R.sup.3.sub.2 SiO unit, D.sup.A represents an R.sup.3 R.sup.4 SiO unit, T represents an R.sup.3 SiO.sub.3/2 unit, T.sup.A represents an R.sup.4 SiO.sub.3/2 unit, and Q represents an SiO.sub.2 unit, wherein R.sup.3 is a monovalent hydrocarbon group containing no alkenyl group and R.sup.4 is an alkenyl group; and(C) a catalytically effective amount of an onium salt as a photoinitiator.
    • 9. 发明授权
    • Varistor
    • 压敏电阻
    • US07741949B2
    • 2010-06-22
    • US11387790
    • 2006-03-24
    • Tatsuya InoueHidenori KatsumuraKeiji Kobayashi
    • Tatsuya InoueHidenori KatsumuraKeiji Kobayashi
    • H01C7/10
    • H01C7/102H01C1/148H01C7/12
    • A varistor includes a ceramic insulating substrate, a varistor section having an outer surface, and first and second external electrodes provided on the outer surface of the varistor section. The varistor section includes a varistor layer on the ceramic insulating substrate, first and second internal electrodes, and first and second via-conductors embedded in the varistor layer and exposing from the varistor layer. The second internal electrode has a portion facing the first internal electrode. The first internal electrode and the portion of the second internal electrode sandwiches at least a portion of the varistor layer. The first and second via-conductors are connected to the first and second internal electrodes, respectively. The first and second external electrodes are connected to the first and second via-conductors, respectively. This varistor has a small thickness and a large mechanical strength.
    • 变阻器包括陶瓷绝缘基板,具有外表面的变阻器部分,以及设置在可变电阻部分的外表面上的第一和第二外部电极。 该变阻器部分包括在陶瓷绝缘基片上的可变电阻层,第一和第二内部电极以及埋在可变电阻层中的第一和第二通孔导体,并从可变电阻层露出。 第二内部电极具有面向第一内部电极的部分。 第一内部电极和第二内部电极的部分夹住至少一部分可变阻敏剂层。 第一和第二通孔导体分别连接到第一和第二内部电极。 第一和第二外部电极分别连接到第一和第二通孔导体。 该压敏电阻具有小的厚度和较大的机械强度。
    • 10. 发明申请
    • FM Tuner
    • FM调谐器
    • US20090061801A1
    • 2009-03-05
    • US12230601
    • 2008-09-02
    • Keiji Kobayashi
    • Keiji Kobayashi
    • H04B1/18
    • H04B1/1027H03J1/0058
    • Adjacent interference is reliably detected in an FM tuner. A receiving field strength judgment circuit (102) compares a reception field strength signal SM-DC input from an S-meter circuit (92) and a reference voltage Vref2, and outputs a receiving strength judgment signal SRE. An SD band judgment circuit (104) uses a window comparator to determine, based on an f-V conversion characteristic of a detection output SDET, whether or not a voltage ΔV generated based on SDET is within a voltage range corresponding to a narrow band WN, and whether or not the voltage ΔV is within a voltage range corresponding to a wide band WW; and outputs determination signals SBD-N, SBD-W corresponding respectively to WN, WW. An SD circuit (106) performs a station detection based on SRE and SBD-N, and determines the presence or absence of adjacent interference based on, e.g., SBD-N and SBD-W.
    • 在FM调谐器中可靠地检测到相邻的干扰。 接收场强判断电路(102)比较从S计电路(92)输入的接收场强信号SM-DC与基准电压Vref2,并输出接收强度判定信号SRE。 SD频带判断电路(104)使用窗口比较器,根据检测输出SDET的fV转换特性,判定基于SDET生成的电压DeltaV是否在对应于窄带WN的电压范围内,以及 电压DeltaV是否在对应于宽带WW的电压范围内; 并输出分别对应于WN,WW的判定信号SBD-N,SBD-W。 SD电路(106)基于SRE和SBD-N执行站检测,并且基于例如SBD-N和SBD-W来确定相邻干扰的存在或不存在。