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    • 31. 发明专利
    • Semiconductor device
    • 半导体器件
    • JP2013207771A
    • 2013-10-07
    • JP2012078007
    • 2012-03-29
    • Semiconductor Energy Lab Co Ltd株式会社半導体エネルギー研究所
    • YONEDA SEIICHI
    • H03K3/354H01L21/822H01L21/8234H01L27/04H01L27/08H01L27/088H01L29/786H03K3/03
    • PROBLEM TO BE SOLVED: To reduce an occupied area of a ring oscillator or an inverter chain which is provided in a semiconductor device while preventing threshold value fall.SOLUTION: In a ring oscillator or an inverter chain which has a capacitative element composed of unipolar transistors, potential of a gate of an inverter is boot-strapped by the capacitative element and lowering of output potential is inhibited. It is preferable that the plurality of unipolar transistors may be stacked and, in some transistors, electrodes which become equal potential are shared among overlapped plurality of transistors. The capacitative element can be used for preventing threshold value fall of potential at predetermined wiring.
    • 要解决的问题:减少设置在半导体器件中的环形振荡器或逆变器链的占用面积,同时防止阈值下降。解决方案:在具有由单极晶体管组成的电容元件的环形振荡器或反相器链中 ,逆变器的栅极的电位被电容元件引导,并且抑制了输出电位的降低。 优选地,多个单极晶体管可以被堆叠,并且在一些晶体管中,成为相等电位的电极在重叠的多个晶体管中共享。 电容元件可以用于防止在预定布线处的电位的阈值下降。
    • 32. 发明专利
    • Low power consumption circuit
    • JP5296125B2
    • 2013-09-25
    • JP2011054498
    • 2011-03-11
    • 東芝マイクロエレクトロニクス株式会社株式会社東芝
    • 裕之 諏訪部
    • G05F3/26H03B5/32H03K3/03H03K3/354
    • PROBLEM TO BE SOLVED: To provide a compact low-power consumption circuit that stably starts while minimizing an increase in current during start operation. SOLUTION: The low-power consumption circuit includes: a first oscillation transistor P31; a second oscillation transistor N31 having a drain terminal connected to a drain terminal of the first oscillation transistor P31; a first capacity C2; a piezoelectric oscillator Q1 having one electrode connected to the first capacity C2 and having the other electrode connected to a connection node between the first oscillation transistor P31 and the second oscillation transistor N31; a feedback resistance circuit Z3 having one electrode connected to the piezoelectric oscillator Q1 and having the other electrode connected to a gate terminal of the first oscillation transistor P31; a first amplitude limiting element P32 having a first terminal connected to a gate terminal VP1 of the first oscillation transistor P31 and having a second terminal connected to the connection node; and a second amplitude limiting element N32 having a second terminal connected to a gate terminal VN1 of the second oscillation transistor N31 and having a first terminal connected to the connection node. COPYRIGHT: (C)2011,JPO&INPIT
    • 35. 发明专利
    • Oscillation circuit
    • 振荡电路
    • JP2013005006A
    • 2013-01-07
    • JP2011130965
    • 2011-06-13
    • New Japan Radio Co Ltd新日本無線株式会社
    • SATO HIROKISAKATA DAISUKE
    • H03B5/32H03B5/36H03K3/03
    • PROBLEM TO BE SOLVED: To provide an oscillation circuit capable of reducing a capacitor that occupies a large area.SOLUTION: An oscillation circuit includes: a crystal oscillator 11; an oscillation amplifier 12 connected in parallel to the crystal oscillator; and a coupling capacitor 15 to perform level shift to a predetermined voltage level, which is included in an oscillation part configured to connect a load capacitor 14 for stabilizing oscillation between an input side of the oscillation amplifier 12 and a ground potential. One end of the coupling capacitor 15 is connected to an output side of the oscillation amplifier 12. The oscillation circuit is configured to output a signal from the other end side of the coupling capacitor 15. The coupling capacitor 15 exhibits both functions of the load capacitor of the oscillation part and the coupling capacitor to perform the level shift to the predetermined voltage level.
    • 要解决的问题:提供能够减少占用大面积的电容器的振荡电路。 解决方案:振荡电路包括:晶体振荡器11; 与晶体振荡器并联连接的振荡放大器12; 以及耦合电容器15,用于执行电平转换到预定电压电平,该电平包括在被配置为连接用于在振荡放大器12的输入侧和地电位之间稳定振荡的负载电容器14的振荡部分中。 耦合电容器15的一端连接到振荡放大器12的输出侧。振荡电路被配置为输出来自耦合电容器15的另一端的信号。耦合电容器15表现出负载电容器 的振荡部分和耦合电容器进行电平转换到预定的电压电平。 版权所有(C)2013,JPO&INPIT
    • 36. 发明专利
    • Oscillator
    • 振荡器
    • JP2012227888A
    • 2012-11-15
    • JP2011096379
    • 2011-04-22
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • NAKAMURA MITSUOHARADA MITSURUUGAJIN MAMORUMATSUNAGA KENICHIYAMAGISHI AKIHIRO
    • H03K3/03H03B5/02H03K3/354
    • PROBLEM TO BE SOLVED: To provide an oscillator that boots up quickly in a simple configuration and generates a signal of more stable frequency than an existing ring voltage-controlled oscillator.SOLUTION: The oscillator includes: a ring voltage-controlled oscillator 10 whose oscillation frequency varies with a control voltage applied to a control voltage input terminal; a pulse shaping circuit 20 for converting an output signal of the ring voltage-controlled oscillator 10 to output a pulse signal of a constant time width; and an integration circuit 30 for integrating a voltage resulting from subtracting from a reference voltage an average voltage of the variable frequency pulse signal output from the pulse shaping circuit 20 and outputting the integral to the control voltage input terminal of the ring voltage-controlled oscillator 10.
    • 要解决的问题:提供一种以简单配置快速启动的振荡器,并产生比现有的环形压控振荡器更稳定的频率信号。 振荡器包括:环形压控振荡器10,其振荡频率随着施加到控制电压输入端子的控制电压而变化; 用于转换环形压控振荡器10的输出信号以输出恒定时间宽度的脉冲信号的脉冲整形电路20; 以及积分电路30,用于对从脉冲整形电路20输出的可变频率脉冲信号的平均电压从参考电压中减去并将积分输出到环形压控振荡器10的控制电压输入端 。版权所有(C)2013,JPO&INPIT
    • 37. 发明专利
    • Vco circuit
    • VCO电路
    • JP2012191275A
    • 2012-10-04
    • JP2011050906
    • 2011-03-09
    • Toshiba Corp株式会社東芝
    • URAKAWA GO
    • H03K3/354H03K3/03
    • H03L7/0995H03K3/0315H03L7/18
    • PROBLEM TO BE SOLVED: To provide a VCO circuit that suppresses the generation of phase noise and a variation in oscillation frequency.SOLUTION: In an embodiment, the VCO circuit comprises a ring oscillator 1 comprising three inverters IV1-IV3 connected in a ring, and a control current generation section 2 voltage/current-converts an input control voltage Vct to generate a control current Ict, which is supplied to the ring oscillator 1 as a supply current. In the VCO circuit, a constant current generation section 3 generates a constant current Ia, which is supplied to the ring oscillator 1 as a supply current to be superimposed on the control current Ict.
    • 要解决的问题:提供抑制相位噪声的产生和振荡频率的变化的VCO电路。 解决方案:在一个实施例中,VCO电路包括环形振荡器1,其包括以环形连接的三个反相器IV1-Ⅳ3,控制电流产生部分2对输入控制电压Vct进行电压/电流转换,以产生控制电流 Ict作为供电电流供给环形振荡器1。 在VCO电路中,恒流产生部分3产生一个恒定电流Ia,该恒定电流被提供给环形振荡器1作为要叠加在控制电流Ict上的电源电流。 版权所有(C)2013,JPO&INPIT
    • 38. 发明专利
    • Diagnostic circuit and oscillation circuit
    • 诊断电路和振荡电路
    • JP2012147171A
    • 2012-08-02
    • JP2011003013
    • 2011-01-11
    • Seiko Epson Corpセイコーエプソン株式会社
    • NOMIYA TAKASHI
    • H03K5/19G01R29/22H03B1/00H03K3/03H03K5/08
    • PROBLEM TO BE SOLVED: To provide a small circuit scale diagnostic circuit or the like that can diagnose a frequency range of an oscillation signal without requiring a reference clock.SOLUTION: A diagnostic circuit 10 for diagnosing a frequency range of an oscillation signal 166 whose frequency changes in response to a control signal 102 includes a comparator for receiving the control signal 102 and comparing a comparison value that is a value based on the control signal 102 with a predetermined threshold value, and generates a diagnostic output value 100 based on a result of comparison by the comparator. Alternatively, an upper limit value and a lower limit value are determined as predetermined threshold values, an upper limit comparator for comparing the comparison value with the upper limit value and a lower limit comparator for comparing the comparison value with the lower limit value are included, and the diagnostic output value 100 is generated on the basis of results of comparison by the upper limit comparator and the lower limit comparator.
    • 要解决的问题:提供可以在不需要参考时钟的情况下诊断振荡信号的频率范围的小型电路规模诊断电路等。 解决方案:用于诊断响应于控制信号102的频率变化的振荡信号166的频率范围的诊断电路10包括用于接收控制信号102的比较器,并且将比较值作为基于 具有预定阈值的控制信号102,并且基于比较器的比较结果产生诊断输出值100。 或者,将上限值和下限值确定为预定阈值,包括用于比较比较值与上限值的上限比较器和用于将比较值与下限值进行比较的下限比较器, 并且基于上限比较器和下限比较器的比较结果生成诊断输出值100。 版权所有(C)2012,JPO&INPIT