OPTICAL SENSOR MODULE
    121.
    发明申请
    OPTICAL SENSOR MODULE 有权
    光传感器模块

    公开(公告)号:US20160141440A1

    公开(公告)日:2016-05-19

    申请号:US14945255

    申请日:2015-11-18

    CPC classification number: H01L31/12 H01L31/173 H01L31/18 H01L2224/48465

    Abstract: An optical sensor module is disclosed. The optical sensor module can include a housing comprising an air cavity. An optical emitter die can be disposed in the air cavity of the housing. A top surface of the optical emitter die can face a first side of the housing, the optical emitter die configured to emit light towards the first side of the housing. An optical sensor die can be disposed in the air cavity of the housing adjacent the optical emitter die. The optical sensor die can be spaced from the optical emitter die by a lateral distance. A top surface of the optical sensor die can face the first side of the housing. There may be no septum between the optical sensor die and the optical emitter die that optically separates the optical sensor die and the optical emitter die.

    Abstract translation: 公开了一种光学传感器模块。 光学传感器模块可以包括包括空气腔的壳体。 光发射器管芯可以设置在壳体的空气腔中。 光发射器管芯的顶表面可以面向壳体的第一侧,光发射器管芯被配置为朝向壳体的第一侧发光。 可以将光学传感器模具设置在与发光体裸片相邻的壳体的空气腔中。 光学传感器芯片可以与光发射器管芯间隔一个横向距离。 光学传感器模具的顶表面可以面向壳体的第一侧。 在光学传感器管芯和光发射器管芯之间可能没有隔膜,该光学传感器管芯和光发射器管芯光学地分离光学传感器管芯和光发射器管芯。

    Duty cycle balance module for switch mode power converter

    公开(公告)号:US09287763B2

    公开(公告)日:2016-03-15

    申请号:US14738351

    申请日:2015-06-12

    Abstract: A duty cycle balance module (DCBM) for use with a switch mode power converter. One possible half-bridge converter embodiment includes a transformer driven to conduct current in first and second directions by first and second signals during and second half-cycles, respectively. A current limiting mechanism adjusts the duty cycles of the first and second signals when a sensed current exceeds a predetermined limit threshold. The DCBM receives signals representative of the duty cycles which would be used if there were no modification by the current limiting mechanism and signals Dact—1 and Dact—2 representative of the duty cycles that are actually used for the first and second signals, and outputs signals Dbl—1 and Dbl—2 which modify signals Dact—1 and Dact—2 as needed to dynamically balance the duty cycles of the first and second signals and thereby reduce flux imbalance in the transformer that might otherwise arise.

    Load current readback and average estimation
    123.
    发明授权
    Load current readback and average estimation 有权
    负载电流回读和平均估计

    公开(公告)号:US09219414B2

    公开(公告)日:2015-12-22

    申请号:US14064490

    申请日:2013-10-28

    Inventor: Bin Shao

    CPC classification number: H02M3/158 H02M3/157 H02M2001/0009

    Abstract: A switching regulator or other apparatus or techniques can include load current monitoring to provide a digital representation of an estimated load current. Load current monitoring can be performed by a circuit including a counter circuit, a comparator circuit, and a digitally-controlled source coupled to the counter circuit and configured to adjust a bias condition of a sensing device in response to a count provided by the counter circuit in order to establish a proportional relationship between a current conducted by the sensing device and a corresponding current conducted by a power switching device. The counter circuit is configured to increment and decrement the count in response to information provided by the comparator output and the count is generally indicative of the estimated load current, such as an average load current.

    Abstract translation: 开关调节器或其他装置或技术可以包括负载电流监视以提供估计负载电流的数字表示。 负载电流监视可以由包括计数器电路,比较器电路和耦合到计数器电路的数字控制源的电路执行,并且被配置为响应于由计数器电路提供的计数来调整感测装置的偏置条件 以便建立由感测装置传导的电流与由电力开关装置传导的对应电流之间的比例关系。 计数器电路被配置为响应于由比较器输出提供的信息而增加和减少计数,并且计数通常表示估计的负载电流,例如平均负载电流。

    Method and apparatus for detecting a preamble in a received radio signal
    124.
    发明授权
    Method and apparatus for detecting a preamble in a received radio signal 有权
    用于检测接收到的无线电信号中的前导码的方法和装置

    公开(公告)号:US09191189B2

    公开(公告)日:2015-11-17

    申请号:US14085443

    申请日:2013-11-20

    Inventor: Michael Dalton

    Abstract: A method for detecting a preamble in a received radio signal includes demodulating the radio signal based on a carrier derived from a local timing source to provide a digital signal including a sequence of bits oscillating at approximately a modulated data rate. A bit width of each successive bit of the digital signal is determined. If a pair of consecutive bit widths has a combined width within a threshold, the bit pair is indicated as potentially belonging to a preamble. If a threshold number of potential preamble bit pairs in a sequence of bit pairs within a given window is detected, the sequence of bit pairs is indicated as potentially belonging to a preamble. A measure of bit widths of at least some bits within a sequence of preamble bit pairs can be provided and a frequency of the local timing source can be adjusted according to the measure.

    Abstract translation: 一种在接收的无线电信号中检测前置码的方法包括:基于从本地定时源导出的载波来解调无线电信号,以提供包括以大约调制数据速率振荡的比特序列的数字信号。 确定数字信号的每个连续位的位宽度。 如果一对连续比特宽度具有阈值内的组合宽度,则该比特对被指示为潜在地属于前导码。 如果检测给定窗口内的位对序列中的潜在前导码比特对的阈值数目,则将该比特对的序列表示为可能属于前导码。 可以提供在前导码比特对序列内的至少一些比特的比特宽度的度量,并且可以根据该度量来调整本地定时源的频率。

    System, method and recording medium for analog to digital converter calibration
    125.
    发明授权
    System, method and recording medium for analog to digital converter calibration 有权
    用于模数转换器校准的系统,方法和记录介质

    公开(公告)号:US09124292B2

    公开(公告)日:2015-09-01

    申请号:US14537532

    申请日:2014-11-10

    CPC classification number: H03M3/384 H03M1/00 H03M1/1009 H03M1/12 H03M3/458

    Abstract: A calibration system for an analog-to-digital converter (ADC) an internal ADC that receives an analog input and converts the analog input to digital multi-bit data. The calibration system also includes a reference shuffling circuit that shuffles reference values of comparators of the internal ADC. Further, the calibration system includes a calibration circuit that calibrates the comparators of the internal ADC. The calibration system includes a digital block that measures an amplitude based on the digital multi-bit data. Additionally, the calibration system includes calibration logic that controls the calibration circuit based on an output of the digital block.

    Abstract translation: 用于模数转换器(ADC)的校准系统,内部ADC接收模拟输入并将模拟输入转换为数字多位数据。 该校准系统还包括一个参考混洗电路,它洗牌内部ADC的比较器参考值。 此外,校准系统包括校准电路,校准内部ADC的比较器。 校准系统包括基于数字多位数据测量幅度的数字块。 此外,校准系统包括基于数字块的输出来控制校准电路的校准逻辑。

    APPARATUS AND METHODS FOR IMPROVING COMMON MODE REJECTION RATIO
    126.
    发明申请
    APPARATUS AND METHODS FOR IMPROVING COMMON MODE REJECTION RATIO 有权
    改进共模抑制比的装置和方法

    公开(公告)号:US20150236662A1

    公开(公告)日:2015-08-20

    申请号:US14184555

    申请日:2014-02-19

    Inventor: Jinhua Ni Dan Li

    Abstract: In certain applications, differential amplifiers with infinite common mode rejection ratios are desirable. However, resistance mismatches due to imperfections in the manufacturing create finite common mode rejection ratio in differential amplifiers degrading their performance. Disclosed are apparatus and method for improving the common mode rejection ratio of practical differential amplifiers.

    Abstract translation: 在某些应用中,具有无限共模抑制比的差分放大器是理想的。 然而,由于制造过程中的缺陷导致的电阻不匹配会导致差分放大器中的有限共模抑制比降低其性能。 公开了用于提高实际差分放大器的共模抑制比的装置和方法。

    AMPLIFIER WITH OFFSET COMPENSATION
    127.
    发明申请
    AMPLIFIER WITH OFFSET COMPENSATION 有权
    放大器与偏移补偿

    公开(公告)号:US20150236648A1

    公开(公告)日:2015-08-20

    申请号:US14321426

    申请日:2014-07-01

    Abstract: Aspects of this disclosure relate to compensating for a relatively large offset in a signal generated by a sensor, such as a pressure sensor and/or a resistive bridge based sensor. Such offset compensation can include applying an offset correction signal generated by a configurable voltage reference, such as a voltage mode digital-to-analog converter (DAC), to an input of an amplifier included in an instrumentation amplifier to compensate for the offset of the signal generated by the sensor.

    Abstract translation: 本公开的方面涉及补偿由传感器(例如压力传感器和/或基于电阻桥的传感器)产生的信号中的相对大的偏移。 这样的偏移补偿可以包括将由诸如电压模式数模转换器(DAC)的可配置电压基准产生的偏移校正信号应用于包括在仪表放大器中的放大器的输入,以补偿 由传感器产生的信号。

    System And Method For Measuring Respiration With Accelerometers
    128.
    发明申请
    System And Method For Measuring Respiration With Accelerometers 审中-公开
    用加速度计测量呼吸的系统和方法

    公开(公告)号:US20150164380A1

    公开(公告)日:2015-06-18

    申请号:US14574667

    申请日:2014-12-18

    Abstract: The respiration rate of a patient may be measured by sensing respiration motion using two MEMS devices, and by processing a respiration signal produced by processing the outputs of the two MEMS devices. Some embodiments dispose two accelerometers around a patient's abdomen and determine respiratory motion from the difference between the outputs of the two accelerometers. Other embodiments dispose two non-identical accelerometers at substantially the same location on the patient's body, such that each of the accelerometers is exposed to the same respiratory motion, and determine respiratory motion from the difference between the outputs of the two accelerometers.

    Abstract translation: 可以通过使用两个MEMS装置感测呼吸运动并且通过处理通过处理两个MEMS装置的输出而产生的呼吸信号来测量患者的呼吸速率。 一些实施例在患者腹部周围设置两个加速度计,并根据两个加速度计的输出之间的差来确定呼吸运动。 其他实施例在患者身体的基本上相同的位置处设置两个不相同的加速度计,使得每个加速度计暴露于相同的呼吸运动,并且根据两个加速度计的输出之间的差来确定呼吸运动。

    Measurement system
    130.
    发明授权

    公开(公告)号:US11193803B2

    公开(公告)日:2021-12-07

    申请号:US16262579

    申请日:2019-01-30

    Abstract: Various examples are directed to systems and methods for managing a sensor. A measurement system may receive, from a host device, a first register map describing a first configuration of a measurement system. The first configuration may be associated with a first sensor. The measurement system may compare the first register map to an error rule set indicating inconsistent register map arrangements. After comparing the first register map to the error rule set, the measurement system may configure a switch matrix of the measurement system to sample the first sensor according to the first configuration of the measurement system. The measurement system may receive a plurality of samples from a first sensor and generate first digital measurement data based at least in part on the plurality of samples.

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