专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2007049285A Chopper amplifier circuit and semiconductor device 审中-公开
标题翻译： CHOPPER放大器电路和半导体器件
公开(公告)号：JP2007049285A
公开(公告)日：2007-02-22
申请号：JP2005229501
申请日：2005-08-08
申请人： Chikoji Gakuen , Seiko Instruments Inc , セイコーインスツル株式会社 , 学校法人智香寺学園
发明人： YOSHIZAWA HIROKAZU , ANZAI RYOICHI , UCHIDA TOSHIYUKI , ARIYAMA MINORU , IGARASHI ATSUSHI , TAKEDA AKIRA
IPC分类号： H03F3/217 , H03K5/08
CPC分类号： H03F3/45775
摘要： PROBLEM TO BE SOLVED: To provide a chopper amplifier circuit, the offset voltage of a sensor bridge and the temperature characteristics of the offset voltage of which can be reduced. SOLUTION: The chopper amplifier circuit is constituted of an offset adjustment voltage generating circuit for generating a voltage equal to the offset voltage of the sensor bridge, and an offset temperature characteristics adjustment voltage generating circuit for generating a voltage equal to that denoting the temperature characteristics of the offset voltage, and the chopper amplifier circuit is configured to apply chopper modulation to output voltages from both the circuits and subtracts the chopper-modulated signals from a chopper-modulated output signal from the sensor bridge. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供斩波放大器电路，传感器桥的偏移电压和其偏移电压的温度特性可以减小。解决方案：斩波放大器电路由用于产生等于传感器桥的偏移电压的电压的偏移调整电压产生电路和偏移温度特性调节电压发生电路构成，该偏移温度特性调整电压产生电路用于产生等于表示偏置电压的温度特性，斩波放大器电路被配置为对来自两个电路的输出电压施加斩波调制，并从来自传感器桥的斩波调制输出信号中减去斩波调制信号。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2007214613A Amplifier circuit 审中-公开
标题翻译：放大器电路
公开(公告)号：JP2007214613A
公开(公告)日：2007-08-23
申请号：JP2006029138
申请日：2006-02-07
申请人： Chikoji Gakuen , Seiko Instruments Inc , セイコーインスツル株式会社 , 学校法人智香寺学園
发明人： YOSHIZAWA HIROKAZU , ANZAI RYOICHI , UCHIDA TOSHIYUKI , TAKEDA AKIRA , ARIYAMA MINORU , IGARASHI ATSUSHI
IPC分类号： H03F3/38 , H03F1/32 , H03K5/08
CPC分类号： H03F1/3211 , H03F3/387 , H03F3/45475 , H03F3/45986 , H03F3/45995 , H03F2203/45138 , H03F2203/45212 , H03F2203/45614 , H03F2203/45616 , H03F2203/45681 , H03F2203/45726
摘要： PROBLEM TO BE SOLVED: To provide a chopper amplifier circuit for acquiring an output signal having no harmonics distortion and only an input signal compared to a conventional example, by removing the influence of a slew rate of an amplifier circuit and suppressing the generation of a spike.
SOLUTION: This chopper amplifier circuit causes a chopper circuit to chop an input signal with a predetermined frequency pulse to generate a modulation signal, and after amplifying the modulation signal, demodulates the modulation signal and outputs it as an output signal. The chopper amplifier circuit has a first chopper circuit for chopping an input signal with first and second pulses having half-period-shifted phases, and changing the connection relation between an input terminal pair and an output terminal pair at the timing of chopping, and outputting it as a modulation signal; an amplifier circuit for amplifying the modulation signal and outputting it as an amplification signal; a first sample and hold circuit for holding the amplification signal with the first pulse, and outputting the amplification signal with the second pulse; and a second sample and hold circuit for holding the amplification signal with the second pulse, and outputting the amplification signal with the first pulse.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种斩波放大器电路，用于获取没有谐波失真的输出信号，并且仅与常规示例相比，获取输入信号，通过消除放大器电路的转换速率的影响并抑制发电的尖峰。解决方案：该斩波放大器电路使得斩波电路以预定的频率脉冲斩波输入信号以产生调制信号，并且在放大调制信号之后，解调调制信号并将其输出作为输出信号。斩波放大器电路具有第一斩波电路，用于以具有半周期相位的第一和第二脉冲斩波输入信号，并且在斩波定时改变输入端子对和输出端子对之间的连接关系，并输出它作为调制信号; 用于放大调制信号并将其作为放大信号输出的放大器电路; 第一采样保持电路，用于保持具有第一脉冲的放大信号，并输出具有第二脉冲的放大信号; 以及第二采样保持电路，用于保持具有第二脉冲的放大信号，并且输出具有第一脉冲的放大信号。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2008178079A Comparator circuit 有权
标题翻译：比较器电路
公开(公告)号：JP2008178079A
公开(公告)日：2008-07-31
申请号：JP2007291686
申请日：2007-11-09
申请人： Seiko Instruments Inc , セイコーインスツル株式会社
发明人： UCHIDA TOSHIYUKI
IPC分类号： H03K5/08 , H03F3/34
CPC分类号： H03K5/249 , H03F3/45475 , H03F3/45977 , H03F2203/45212
摘要： PROBLEM TO BE SOLVED: To provide a comparator circuit which is capable of operating at high speed and highly accurately canceling an offset voltage. SOLUTION: A second amplifier circuit is provided which amplifies the output of an amplifier circuit and feeds it back to the input of the amplifier circuit and when a comparator circuit samples an input voltage, the second amplifier circuit feeds it back and improves an amplification factor, thereby canceling offset. Furthermore, the amplification factor of the amplifier circuit is made lower than that of the second amplifier circuit and when the comparator circuit compares the input voltage, it is separated from the feedback of the second amplifier circuit, thereby performing the comparing operation fast. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够高速运行并高精度地抵消偏移电压的比较器电路。解决方案：提供第二放大器电路，其放大放大器电路的输出并将其馈送回放大器电路的输入端，并且当比较器电路对输入电压进行采样时，第二放大器电路将其反馈并改善放大因子，从而抵消偏移。此外，放大器电路的放大系数低于第二放大器电路的放大系数，并且当比较器电路比较输入电压时，其与第二放大器电路的反馈分离，从而快速执行比较操作。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2013157619A Optical detector, and image display device 审中-公开
标题翻译：光学检测器和图像显示装置
公开(公告)号：JP2013157619A
公开(公告)日：2013-08-15
申请号：JP2013050429
申请日：2013-03-13
申请人： Seiko Instruments Inc , セイコーインスツル株式会社
发明人： OMI TOSHIHIKO , FUJII ISAMU , MACHIDA SATOSHI , UCHIDA TOSHIYUKI
IPC分类号： H01L31/10 , G02F1/133 , G09F9/00
CPC分类号： H01L27/14645 , G01J1/02 , G01J1/0488 , G01J1/18 , G01J1/4228 , G01J1/44 , H01L27/14621 , H04N5/37457
摘要： PROBLEM TO BE SOLVED: To provide an optical detector having small size and good sensitivity.SOLUTION: An optical detector 10 makes cathode terminals of photo diodes 1 and 2 having difference spectral characteristics become opening ends, and detects the optical intensity of a required wavelength area from the difference of electric charges accumulated in the cathode terminals for a fixed period. The photo diodes 1 and 2 are type for accumulating the electric charges, so that they can obtain an electric charge necessary for detection by accumulating an optical current even if the optical current is small. Therefore, downsizing and improving detection performance of a semiconductor device forming the photo diodes 1 and 2 is enabled. The accumulation period of the electric charges are varied according to the optical intensity to materialize a large dynamic range. Furthermore, an element necessary for difference detection is intermittently driven during the difference detection to suppress power consumption, or output is averaged to reduce the influence of flicker.
摘要翻译：要解决的问题：提供具有小尺寸和良好灵敏度的光学检测器。解决方案：光学检测器10使具有差分光谱特性的光电二极管1,2的阴极端子成为开口端，并且检测所需波长区域的光强度从阴极端子中蓄积的固定电压的差异。光电二极管1和2是用于累积电荷的类型，使得即使光电流小，也可以通过累积光电流来获得检测所需的电荷。因此，能够实现形成光电二极管1,2的半导体装置的小型化和提高检测性能。电荷的累积期间根据光强度而变化以实现大的动态范围。此外，在差异检测期间间歇地驱动差分检测所需的元件以抑制功耗，或者输出平均以减少闪烁的影响。

5. 发明专利

JP2013024706A Photo-detection device 有权
标题翻译：光电检测装置
公开(公告)号：JP2013024706A
公开(公告)日：2013-02-04
申请号：JP2011159189
申请日：2011-07-20
申请人： Seiko Instruments Inc , セイコーインスツル株式会社
发明人： MACHIDA SATOSHI , UCHIDA TOSHIYUKI , WAKABAYASHI HISAHITO
IPC分类号： G01J1/42
CPC分类号： G01J1/44
摘要： PROBLEM TO BE SOLVED: To provide a photo-detection device capable of outputting a measurement value further close to an actual light quantity even when light including much infrared light or extremely strong light is incident thereon.SOLUTION: The photo-detection device includes: a first photo detector for generating electric charge by incident light; a second photo detector that has light-shielding means for shielding the incident light and generates electric charge to become a criterion; a difference circuit for detecting that a difference of the charges thereof becomes a predetermined value; and detects the light intensity on the basis of a detection signal of the difference circuit. The photo-detection device further includes an accumulation detecting circuit for detecting that the output voltage of the first photo detector or the second detector reaches a predetermined potential and is adapted to output a detection signal when the difference does not reach the predetermined value despite of sufficient incident light.
摘要翻译：要解决的问题：即使当入射了包含很多红外线或极强光的光时，也能够提供能够输出进一步接近实际光量的测量值的光检测装置。光检测装置包括：第一光检测器，用于通过入射光产生电荷; 第二光检测器，具有用于屏蔽入射光并产生电荷成为标准的遮光装置; 用于检测其电荷的差异成为预定值的差分电路; 并且基于差分电路的检测信号来检测光强度。光检测装置还包括累积检测电路，用于检测第一光电检测器或第二检测器的输出电压达到预定电位，并且当差值达不到预定值时适合输出检测信号，尽管足够入射光。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2011188143A Switched capacitor amplifier 有权
标题翻译：开关电容放大器
公开(公告)号：JP2011188143A
公开(公告)日：2011-09-22
申请号：JP2010049873
申请日：2010-03-05
申请人： Seiko Instruments Inc , セイコーインスツル株式会社
发明人： UCHIDA TOSHIYUKI
IPC分类号： H03F3/343
CPC分类号： H03F11/00
摘要： PROBLEM TO BE SOLVED: To provide a switched capacitor amplifier which can output a stable output voltage.
SOLUTION: A switched capacitor amplifier is capable of operating so as to eliminate a charge/discharge time difference between an input capacitor 18 and an output capacitor 19. Accordingly, in a shift from a hold state to a sample state, for example, even if one terminal voltage V2 of the output capacitor 19 abruptly increases to an output voltage VOUT, another terminal voltage Vs of the output capacitor 19 does not increase abruptly. In other words, an input voltage to an internal amplifier 11 does not increase abruptly. Hence, an output voltage of the internal amplifier 11 becomes stable, and therefore, the output voltage VOUT also becomes stable.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供可输出稳定输出电压的开关电容放大器。解决方案：开关电容放大器能够操作以消除输入电容器18和输出电容器19之间的充电/放电时间差。因此，在从保持状态向样品状态的转变中，例如即使输出电容器19的一个端子电压V2突然增加到输出电压VOUT，输出电容器19的另一个端子电压Vs也不会突然增加。换句话说，到内部放大器11的输入电压不会突然增加。因此，内部放大器11的输出电压变得稳定，因此输出电压VOUT也变得稳定。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2010004468A Comparator 有权
标题翻译：比较器
公开(公告)号：JP2010004468A
公开(公告)日：2010-01-07
申请号：JP2008163493
申请日：2008-06-23
申请人： Seiko Instruments Inc , セイコーインスツル株式会社
发明人： UCHIDA TOSHIYUKI
IPC分类号： H03K5/08
摘要： PROBLEM TO BE SOLVED: To provide a comparator that operates fast. SOLUTION: The comparator includes a differential amplifier circuit 11, first inverting amplifier circuits 12 and 14 which are connected to output terminals of the differential amplifier circuit, and invert and amplify the output of the differential amplifier circuit, second inverting amplifier circuits 13 and 15 which invert and amplify outputs of the first inverting amplifying circuits, and a latch circuit 16 which latches outputs of the second inverting amplifier circuits. The first and second inverting amplifier circuits which have a low amplification factor and low output impedance are connected to the outputs of the differential amplifier circuit, and the voltage potential difference between two signals input to the trailing-stage latch circuit is amplified fast, so that a comparator circuit operates fast. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供快速操作的比较器。
解决方案：比较器包括差分放大器电路11，连接到差分放大器电路的输出端的第一反相放大器电路12和14，并且反相和放大差分放大器电路的输出，第二反相放大器电路13 15，其反转和放大第一反相放大电路的输出;锁存电路16锁存第二反相放大器电路的输出。具有低放大系数和低输出阻抗的第一和第二反相放大器电路连接到差分放大器电路的输出，并且输入到后级锁存电路的两个信号之间的电压电位差被快速放大，使得比较器电路运行快。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2008047997A Switched capacitor circuit 审中-公开
标题翻译：开关电容器电路
公开(公告)号：JP2008047997A
公开(公告)日：2008-02-28
申请号：JP2006219196
申请日：2006-08-11
申请人： Seiko Instruments Inc , セイコーインスツル株式会社
发明人： UCHIDA TOSHIYUKI
IPC分类号： H03H19/00 , G11C27/02
摘要： PROBLEM TO BE SOLVED: To cancel a DC offset voltage that is contained in the input voltage at an input terminal.
SOLUTION: A reference voltage Voff1 and a reference voltage Voff2 are provided in a switched capacitor circuit, and voltage values thereof are controlled, to cancel the DC offset voltage included in the input voltage Vin at the input terminal. Consequently, unwanted variations in the output voltage Vout can be prevented.
COPYRIGHT: (C)2008,JPO&INPIT

9. 发明专利

JP2011188146A Variable capacitance circuit and oscillation circuit with the same 审中-公开
标题翻译：可变电容电路和振荡电路
公开(公告)号：JP2011188146A
公开(公告)日：2011-09-22
申请号：JP2010049882
申请日：2010-03-05
申请人： Seiko Instruments Inc , セイコーインスツル株式会社
发明人： HIRAOKA NAOHIRO , MACHIDA SATOSHI , UCHIDA TOSHIYUKI
IPC分类号： H03K19/094 , H03B5/32 , H03K3/354
摘要： PROBLEM TO BE SOLVED: To provide a variable capacitance circuit capable of reducing a leakage current, and to provide an oscillation circuit with the variable capacitance circuit.
SOLUTION: In a turned-off NMOS transistor 12, a source voltage becomes a power supply voltage VDD by a PMOS transistor 11, thereby a threshold voltage of the NMOS transistor 12 is increased by substrate bias effects. Therefore, a leakage current of the turned-off NMOS transistor 12 hardly flows and a leakage current of a variable capacitance circuit 30 is reduced. An NMOS transistor 22 is also similar.
COPYRIGHT: (C)2011,JPO&INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式