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    • 14. 发明授权
    • Crystal-oscillator circuit
    • 晶振电路
    • US08228131B2
    • 2012-07-24
    • US13005176
    • 2011-01-12
    • Kei NagatomoHisato TakeuchiShuuji Shibuya
    • Kei NagatomoHisato TakeuchiShuuji Shibuya
    • H03B5/32
    • H03L3/00H03L1/022
    • In a crystal-oscillator circuit having a quartz crystal unit, further stabilization of output frequency change at a time of startup of the power supply is achieved. A crystal-oscillator circuit having a quartz crystal unit includes a first variable-capacitance element, which forms an oscillation loop with the quartz crystal unit, and a temperature compensation circuit which provides a first control signal for the first variable-capacitance element to compensate for a temperature characteristic of the quartz crystal unit. In addition, the crystal-oscillator circuit includes a second variable-capacitance element group, and a time constant circuit which provides a time constant signal, which changes with a predetermined time constant, for the second variable-capacitance element group as a second control signal.
    • 在具有石英晶体单元的晶体振荡器电路中,实现了在电源启动时输出频率变化的进一步稳定。 具有石英晶体单元的晶体振荡器电路包括与石英晶体单元形成振荡环路的第一可变电容元件和温度补偿电路,该电路为第一可变电容元件提供第一控制信号以补偿 石英晶体单元的温度特性。 此外,晶体振荡器电路包括第二可变电容元件组和时间常数电路,其将作为第二控制信号的第二可变电容元件组提供以预定时间常数变化的时间常数信号 。
    • 16. 发明授权
    • Oscillation control apparatus and oscillator
    • 振荡控制装置和振荡器
    • US07847645B2
    • 2010-12-07
    • US12261544
    • 2008-10-30
    • Hisato Takeuchi
    • Hisato Takeuchi
    • H03L7/099
    • H03L1/02H03L5/00
    • An oscillation control apparatus is provided with: an oscillating unit for oscillating an oscillating element; an output amplifying circuit having two pieces of same types of transistors series-connected to each other, for outputting a signal from a junction point between the two transistors in response to an oscillation signal outputted from the oscillating unit; a bias unit for generating two DC bias voltages having different levels from each other, which are applied to either respective gates or respective bases of the two transistors; a constant voltage power supply unit for applying a constant voltage to the oscillating unit; and an inverter unit provided between the oscillating unit and any one of either the gates or the bases of the two transistors, for inverting a phase of the oscillation signal outputted from the oscillating unit. Both the oscillation signal outputted from the oscillating unit and one of the two bias voltages are applied to either the gate or the base of one of the two transistors; and both an oscillation signal outputted from the oscillating unit and whose phase has been inverted by the inverting unit and the other bias voltage of the two bias voltages are applied to either the gate or the base of the other transistor of the two transistors.
    • 振荡控制装置具有:振荡单元,用于振荡振荡元件; 一个输出放大电路,具有两个串联连接的相同类型的晶体管,用于响应于从振荡单元输出的振荡信号,从两个晶体管之间的连接点输出信号; 用于产生彼此具有不同电平的两个DC偏置电压的偏置单元,其被施加到两个晶体管的相应栅极或相应的基极; 用于向振荡单元施加恒定电压的恒压电源单元; 以及逆变器单元,设置在振荡单元与两个晶体管的栅极或基极中的任一个之间,用于反转从振荡单元输出的振荡信号的相位。 从振荡单元输出的振荡信号和两个偏置电压之一都施加到两个晶体管之一的栅极或基极上; 并且从振荡单元输出的相位已被反相单元反相的振荡信号和两个偏置电压的另一个偏置电压都施加到两个晶体管的另一晶体管的栅极或基极。
    • 17. 发明申请
    • OSCILLATION CONTROL APPARATUS AND OSCILLATOR
    • 振荡控制装置和振荡器
    • US20090108950A1
    • 2009-04-30
    • US12261544
    • 2008-10-30
    • Hisato Takeuchi
    • Hisato Takeuchi
    • H03L7/099
    • H03L1/02H03L5/00
    • An oscillation control apparatus is provided with: an oscillating unit for oscillating an oscillating element; an output amplifying circuit having two pieces of same types of transistors series-connected to each other, for outputting a signal from a junction point between the two transistors in response to an oscillation signal outputted from the oscillating unit; a bias unit for generating two DC bias voltages having different levels from each other, which are applied to either respective gates or respective bases of the two transistors; a constant voltage power supply unit for applying a constant voltage to the oscillating unit; and an inverter unit provided between the oscillating unit and any one of either the gates or the bases of the two transistors, for inverting a phase of the oscillation signal outputted from the oscillating unit. Both the oscillation signal outputted from the oscillating unit and one of the two bias voltages are applied to either the gate or the base of one of the two transistors; and both an oscillation signal outputted from the oscillating unit and whose phase has been inverted by the inverting unit and the other bias voltage of the two bias voltages are applied to either the gate or the base of the other transistor of the two transistors.
    • 振荡控制装置具有:振荡单元,用于振荡振荡元件; 一个输出放大电路,具有两个串联连接的相同类型的晶体管,用于响应于从振荡单元输出的振荡信号,从两个晶体管之间的连接点输出信号; 用于产生彼此具有不同电平的两个DC偏置电压的偏置单元,其被施加到两个晶体管的相应栅极或相应的基极; 用于向振荡单元施加恒定电压的恒压电源单元; 以及逆变器单元,设置在振荡单元与两个晶体管的栅极或基极中的任一个之间,用于反转从振荡单元输出的振荡信号的相位。 从振荡单元输出的振荡信号和两个偏置电压之一都施加到两个晶体管之一的栅极或基极上; 并且从振荡单元输出的相位已被反相单元反相的振荡信号和两个偏置电压的另一个偏置电压都施加到两个晶体管的另一晶体管的栅极或基极。
    • 18. 发明授权
    • Acrylic copolymer
    • 丙烯酸共聚物
    • US07230062B2
    • 2007-06-12
    • US11054410
    • 2005-02-10
    • Makoto MouriHisato Takeuchi
    • Makoto MouriHisato Takeuchi
    • C08F220/10
    • C08F220/26
    • An acrylic copolymer consisting of a first acrylic monomer represented by the following general formula (1): [where each of R1 and R2 represents an aliphatic hydrocarbon group whose main chain is composed of 3 or less carbon atoms, and each of R3 and R4 represents a hydrocarbon atom], and a second acrylic monomer represented by the following general formula (2): [where at least one of R5 and R6 represents an aliphatic hydrocarbon group whose main chain is composed of 4 to 60 carbon atoms, in the case where one of the R5 and R6 does not represent the aliphatic hydrocarbon group, it represents an aliphatic hydrocarbon group whose main chain is composed of 3 or less carbon atoms, and each of R7 and R8 represents a hydrogen atom], wherein the first acrylic monomer makes up 50 to 99 % of total monomer units in the copolymer.
    • 由以下通式(1)表示的第一丙烯酸单体组成的丙烯酸共聚物:[其中R 1和R 2各自表示脂族烃基,其主链 由3个以下的碳原子构成,R 3和R 4中的每一个表示烃原子]和由以下通式(2)表示的第二丙烯酸类单体 ):[其中R 5和R 6中的至少一个表示主链由4至60个碳原子组成的脂族烃基,在以下情况之一的情况下: R 5和R 6不表示脂族烃基,它代表主链由3个或更少碳原子构成的脂族烃基,R < 7>和< 8< 8>表示氢原子],其中第一丙烯酸类单体占共聚物中总单体单元的50〜99%。
    • 20. 发明申请
    • CRYSTAL-OSCILLATOR CIRCUIT
    • 水晶振荡器电路
    • US20110227655A1
    • 2011-09-22
    • US13005176
    • 2011-01-12
    • Kei NAGATOMOHisato TakeuchiShuuji Shibuya
    • Kei NAGATOMOHisato TakeuchiShuuji Shibuya
    • H03L7/00
    • H03L3/00H03L1/022
    • In a crystal-oscillator circuit having a quartz crystal unit, further stabilization of output frequency change at a time of startup of the power supply is achieved. A crystal-oscillator circuit having a quartz crystal unit includes a first variable-capacitance element, which forms an oscillation loop with the quartz crystal unit, and a temperature compensation circuit which provides a first control signal for the first variable-capacitance element to compensate for a temperature characteristic of the quartz crystal unit. In addition, the crystal-oscillator circuit includes a second variable-capacitance element group, and a time constant circuit which provides a time constant signal, which changes with a predetermined time constant, for the second variable-capacitance element group as a second control signal.
    • 在具有石英晶体单元的晶体振荡器电路中,实现了在电源启动时输出频率变化的进一步稳定。 具有石英晶体单元的晶体振荡器电路包括与石英晶体单元形成振荡环路的第一可变电容元件和温度补偿电路,该电路为第一可变电容元件提供第一控制信号以补偿 石英晶体单元的温度特性。 此外,晶体振荡器电路包括第二可变电容元件组和时间常数电路,其将作为第二控制信号的第二可变电容元件组提供以预定时间常数变化的时间常数信号 。