Temperature-gradient cancelation technique and device
    11.
    发明授权
    Temperature-gradient cancelation technique and device 有权
    温度梯度消除技术和装置

    公开(公告)号:US07862229B2

    公开(公告)日:2011-01-04

    申请号:US12229525

    申请日:2008-08-22

    IPC分类号: G01K3/00

    CPC分类号: G01K3/14 G01P15/008

    摘要: A system, device, and method for minimizing x-axis and/or y-axis offset shift due to internally produced as well as externally produced on chip temperature imbalances. At least one temperature gradient canceling device is disposed on a substrate including a temperature gradient sensitive device having at least one pair of sensors. Voltage signals generated by the temperature gradient canceling devices can be combined with voltage signals generated by each of the pair of sensors to account for the offset.

    摘要翻译: 用于最小化由于内部产生的x轴和/或y轴偏移偏移以及外部产生的片上温度失衡的系统,装置和方法。 至少一个温度梯度消除装置设置在包括具有至少一对传感器的温度梯度敏感装置的基板上。 由温度梯度消除装置产生的电压信号可与由该对传感器中的每一个生成的电压信号组合以考虑偏移。

    Temperature-gradient cancelation technique and device
    12.
    发明申请
    Temperature-gradient cancelation technique and device 有权
    温度梯度消除技术和装置

    公开(公告)号:US20100045362A1

    公开(公告)日:2010-02-25

    申请号:US12229525

    申请日:2008-08-22

    IPC分类号: H01L35/00

    CPC分类号: G01K3/14 G01P15/008

    摘要: A system, device, and method for minimizing x-axis and/or y-axis offset shift due to internally produced as well as externally produced on chip temperature imbalances. At least one temperature gradient canceling device is disposed on a substrate including a temperature gradient sensitive device having at least one pair of sensors. Voltage signals generated by the temperature gradient canceling devices can be combined with voltage signals generated by each of the pair of sensors to account for the offset.

    摘要翻译: 用于最小化由于内部产生的x轴和/或y轴偏移偏移以及外部产生的片上温度失衡的系统,装置和方法。 至少一个温度梯度消除装置设置在包括具有至少一对传感器的温度梯度敏感装置的基板上。 由温度梯度消除装置产生的电压信号可以与由一对传感器中的每一个生成的电压信号相组合以考虑偏移。

    Power-on-reset circuit having zero static power consumption
    13.
    发明申请
    Power-on-reset circuit having zero static power consumption 有权
    上电复位电路具有零静态功耗

    公开(公告)号:US20090174444A1

    公开(公告)日:2009-07-09

    申请号:US12006467

    申请日:2008-01-03

    IPC分类号: H03L7/00

    CPC分类号: H03K17/22 H03K2217/0036

    摘要: A power-on-reset (POR) circuit having a zero or substantially zero current state while the supply voltage is in a predetermined, valid range is disclosed. The POR circuit includes a state machine, an oscillator, and output circuitry that are electrically coupled to one another and to a supply voltage. Output from the output circuitry is also provided to the integrated circuit to which the POR circuit is coupled. The state machine includes a plurality of sequential circuits such as latches, flip-flops, and the like that are electrically coupled in a cascade, to provide a ripple counter. The output circuitry is structured and arranged to reset or initialize all of the logic elements on the chip by generating a POR output logic HI (1) signal by Boolean operation of the logic circuitry signal of the state machine for all Boolean states except one. The oscillator is disabled when the POR output logic signal is LO (0), which causes the POR circuit to enter a zero or substantially zero current state.

    摘要翻译: 公开了一种在电源电压处于预定的有效范围内具有零或基本零电流状态的上电复位(POR)电路。 POR电路包括电耦合到电源电压的状态机,振荡器和输出电路。 输出电路的输出也提供给POR电路耦合到的集成电路。 状态机包括串联电耦合的多个时序电路,例如锁存器,触发器等,以提供纹波计数器。 输出电路被构造和布置成通过对除了一个之外的所有布尔状态的状态机的逻辑电路信号的布尔运算产生POR输出逻辑HI(1)信号来复位或初始化芯片上的所有逻辑元件。 当POR输出逻辑信号为LO(0)时,振荡器被禁止,这导致POR电路进入零或基本零电流状态。

    Method and circuitry for thermal accelerometer signal conditioning
    14.
    发明授权
    Method and circuitry for thermal accelerometer signal conditioning 有权
    用于热加速度计信号调理的方法和电路

    公开(公告)号:US07305881B2

    公开(公告)日:2007-12-11

    申请号:US11146993

    申请日:2005-06-07

    IPC分类号: G01P15/00 G01P15/08

    CPC分类号: G01P15/008

    摘要: A thermal accelerometer device that provides a compensation for sensitivity variations over temperature. The thermal accelerometer includes signal conditioning circuitry operative to receive analog signals representing a differential temperature is indicative of a sensed acceleration. The signal conditioning circuitry includes serially connected A-to-D and D-to-A converters, which implement a temperature dependent function and process the received signals to provide a compensation for sensitivity variations over a range of ambient temperature. To provide a ratiometric compensation for variations in power supply voltage, a buffered voltage proportional to the supply voltage is provided as a reference voltage to the D-to-A converter. The thermal accelerometer includes a self-test circuit for verifying the integrity of a heater, temperature sensors, and circuitry included within the device.

    摘要翻译: 一种热敏加速度计装置,可提供对温度敏感度变化的补偿。 热加速度计包括信号调节电路,其操作以接收表示差分温度的模拟信号,其指示感测到的加速度。 信号调理电路包括串行连接的A到D和D到A转换器,其实现温度依赖功能并处理接收到的信号以提供在环境温度范围内的灵敏度变化的补偿。 为了提供电源电压变化的比例补偿,将与电源电压成比例的缓冲电压作为参考电压提供给D转换器。 热加速度计包括用于验证加热器,温度传感器和包括在装置内的电路的完整性的自检电路。

    Circuit for minimizing turn-on time of temperature compensated crystal
oscillator
    15.
    发明授权
    Circuit for minimizing turn-on time of temperature compensated crystal oscillator 失效
    用于最小化温度补偿晶体振荡器的导通时间的电路

    公开(公告)号:US5977840A

    公开(公告)日:1999-11-02

    申请号:US69581

    申请日:1998-04-29

    IPC分类号: H03B5/32 H03L1/02 H03L3/00

    CPC分类号: H03L3/00

    摘要: A temperature compensated crystal oscillator with an improved phase noise characteristic and a fast start up time includes a large time constant low-pass filter coupled to a temperature compensation circuit. At start up the low pass filter is effectively bypassed to enable the temperature compensation voltage and oscillator output frequency to settle quickly. A capacitance in the low-pass filter is precharged by a precharge circuit to match the temperature compensation voltage without disturbing the temperature compensation circuit and the concurrent settling of the oscillator. When the capacitance is fully charged, the low-pass filter is enabled without unsettling the oscillator output frequency.

    摘要翻译: 具有改善的相位噪声特性和快速启动时间的温度补偿晶体振荡器包括耦合到温度补偿电路的大时间常数低通滤波器。 启动时,低通滤波器被有效地旁路,使得温度补偿电压和振荡器输出频率快速稳定。 低通滤波器中的电容由预充电电路预充电,以匹配温度补偿电压,而不会干扰温度补偿电路和振荡器的同时稳定。 当电容完全充电时,使能低通滤波器,而不会使振荡器输出频率不稳定。