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6 条记录 (耗时 0.043 秒)

    Method and circuit for providing a system level reset function for an electronic device
    2.
    发明授权
    Method and circuit for providing a system level reset function for an electronic device 有权
    为电子设备提供系统电平复位功能的方法和电路

    公开(公告)号：US07089133B1

    公开(公告)日：2006-08-08

    申请号：US10942523

    申请日：2004-09-15

    申请人： Timothy Williams ,  Harold Kutz ,  Eric Blom ,  Warren Snyder

    发明人： Timothy Williams ,  Harold Kutz ,  Eric Blom ,  Warren Snyder

    IPC分类号： G06F19/00 ,  G06F1/24

    CPC分类号： G06F1/24

    摘要： A method and circuit provide a system level reset function for an electronic device. An initial reset function is provided under a low voltage condition of supply voltage, such as occur upon first energizing the electronic device. A tunable reset function is also provided, which can first be asserted at a voltage level setting less precise than that setting becomes upon tuning. Further, a boot-up reset function is provided, which provides its reset function at a voltage level setting that is set according to a calibration. Calibration can be based on data stored in a non-volatile memory, and can involve a checksum operation. The electronic device, a microcontroller for instance, is held in a reset state with any of the initial, tunable, and boot-up reset functions.

    摘要翻译： 方法和电路为电子设备提供系统级复位功能。 在电源电压的低电压条件下提供初始复位功能，例如在电子设备首次通电时发生。 还提供了可调谐复位功能，其可以首先在比调谐时设置的精度低的电压电平设置下被断言。 此外，提供启动复位功能，其提供其按照校准设置的电压电平设置的复位功能。 校准可以基于存储在非易失性存储器中的数据，并且可以涉及校验和操作。 例如，电子设备（例如微控制器）被保持在具有任何初始，可调谐和启动复位功能的复位状态。

    Variable reference voltage circuit for non-volatile memory
    3.
    发明申请
    Variable reference voltage circuit for non-volatile memory 有权
    用于非易失性存储器的可变参考电压电路

    公开(公告)号：US20070217271A1

    公开(公告)日：2007-09-20

    申请号：US11385235

    申请日：2006-03-20

    申请人： Harold Kutz ,  Mark Rouse ,  Eric Blom

    发明人： Harold Kutz ,  Mark Rouse ,  Eric Blom

    IPC分类号： G11C5/14

    CPC分类号： G11C5/147 ,  G11C16/30

    摘要： A variable reference voltage circuit for performing memory operation on non-volatile memory includes a multi-level voltage source and a selector circuit. The multi-level voltage source generates multiple voltages. The selector circuit includes a selector input and a selector output. The selector input is coupled to the multi-level voltage source to selectively couple any of the multiple voltages to the selector output. The selector output of the selector circuit is coupled to a non-volatile memory array to provide the NV memory array with a selectable program voltage for programming the NV memory array and a selectable erase voltage for erasing the NV memory array.

    摘要翻译： 用于在非易失性存储器上执行存储器操作的可变参考电压电路包括多电平电压源和选择器电路。 多电平电压源产生多个电压。 选择器电路包括选择器输入和选择器输出。 选择器输入耦合到多电平电压源以选择性地将多个电压中的任一个耦合到选择器输出。 选择器电路的选择器输出耦合到非易失性存储器阵列，以向NV存储器阵列提供用于编程NV存储器阵列的可选择的编程电压和用于擦除NV存储器阵列的可选擦除电压。

    Frequency ratio digitizing temperature sensor with linearity correction
    4.
    发明申请
    Frequency ratio digitizing temperature sensor with linearity correction 有权
    频率比数字化温度传感器具有线性校正

    公开(公告)号：US20070195856A1

    公开(公告)日：2007-08-23

    申请号：US11361912

    申请日：2006-02-23

    申请人： Eric Blom ,  Jun Wan ,  Stuart Urie

    发明人： Eric Blom ,  Jun Wan ,  Stuart Urie

    IPC分类号： G01K11/22

    CPC分类号： G01K7/01

    摘要： A frequency ratio digitizing temperature sensor for generating a linearity-corrected temperature output signal includes an input generation circuit receiving a PTAT current and a CTAT current and a frequency ratio ADC including data and reference oscillators. The input generation circuit generates a first current from the weighted sum of the PTAT current and the CTAT current and also generates a first corrected current being the sum of the first current and a first portion of the PTAT current. The input generation circuit provides a first output current indicative of the PTAT current and a first output voltage generated by applying the first corrected current to a first resistor for use with the data oscillator and provides a second output current being the first corrected current and a second output voltage generated by applying the first current to a second resistor for use with the reference oscillator of the ADC.

    摘要翻译： 用于产生线性校正温度输出信号的频率比数字化温度传感器包括接收PTAT电流和CTAT电流的输入产生电路和包括数据和参考振荡器的频率比ADC。 输入产生电路根据PTAT电流和CTAT电流的加权和产生第一电流，并且还产生第一校正电流，该第一校正电流是PTAT电流的第一电流和第一部分之和。 输入产生电路提供指示PTAT电流的第一输出电流和通过将第一校正电流施加到与数据振荡器一起使用的第一电阻器产生的第一输出电压，并提供作为第一校正电流的第二输出电流和第二输出电流 通过将第一电流施加到与ADC的参考振荡器一起使用的第二电阻器产生的输出电压。

    Valved fenestrated tracheotomy tube having outer and inner cannulae
    5.
    发明申请
    Valved fenestrated tracheotomy tube having outer and inner cannulae 有权

    公开(公告)号：US20070144526A1

    公开(公告)日：2007-06-28

    申请号：US11318649

    申请日：2005-12-27

    申请人： Eric Blom ,  Bradley Quinn

    发明人： Eric Blom ,  Bradley Quinn

    IPC分类号： A62B9/06 ,  A61M16/00 ,  A62B9/02

    CPC分类号： A61M16/0468 ,  A61M16/0427 ,  A61M16/0434 ,  A61M16/0479 ,  A61M16/0816 ,  A61M2205/6045

    摘要： A tracheotomy tube apparatus includes an outer cannula having first and second ends, and a fenestration along the length of the outer cannula between the first and second ends. The apparatus further includes a first inner cannula sized for insertion into the outer cannula. The first inner cannula has a raised region substantially to close the fenestration when the first inner cannula is inserted into the outer cannula. The apparatus further comprises a second inner cannula for insertion into the outer cannula when the first inner cannula is removed therefrom. The second inner cannula includes a resilient region which lies adjacent the fenestration when the second inner cannula is properly oriented within the outer cannula, a valve at an end thereof and a region between the resilient region and the end thereof which provides a passageway between the second inner cannula and the outer cannula when the second inner cannula is properly oriented within the outer cannula. A first coupler is provided on an outer end of the outer cannula. Second couplers are provided on outer ends of the first and second inner cannulae. The first and second couplers are provided with means for guiding the first and second inner cannulae into the predetermined orientations with respect to the outer cannula. The outer cannula further comprises an inflatable cuff formed by a sleeve including a first end, a second end, and a third region between the first and second ends. The sleeve is located around the outer cannula with at least one of the first and second ends of the sleeve between the outer cannula and the third region of the sleeve. The outer cannula further comprises a conduit extending from a first end of the outer cannula to the cuff for introducing an inflating fluid into the cuff when it is desired to inflate the cuff and removing inflating fluid from the cuff when it is desired to deflate the cuff. The first inner cannula includes a second conduit to evacuate a region of a trachea of a wearer adjacent the cuff. The second conduit includes an opening which lies adjacent the closest point in the fenestration to the cuff when the first inner cannula is in a use orientation in the outer cannula.

    RFID Temperature Logger Incorporating A Frequency Ratio Digitizing Temperature Sensor
    6.
    发明申请
    RFID Temperature Logger Incorporating A Frequency Ratio Digitizing Temperature Sensor 有权
    RFID温度记录仪结合了一个频率比数字化温度传感器

    公开(公告)号：US20070205916A1

    公开(公告)日：2007-09-06

    申请号：US11425381

    申请日：2006-06-20

    申请人： Eric Blom ,  Jun Wan ,  Stuart Urie

    发明人： Eric Blom ,  Jun Wan ,  Stuart Urie

    IPC分类号： G08C19/12

    CPC分类号： G01K7/01

    摘要： A semi-passive radio frequency identification (RFID) tag being coupled to a battery providing a battery voltage for powering a part of the circuitry of the RFID tag includes an RF communication block receiving and transmitting RF signals, a sensor block including a frequency ratio digitizing temperature sensor for alternately measuring the ambient temperature and the battery voltage, and a control logic block in communication with the RF communication block and the sensor block. The control logic controls the operation of the RF communication block and the sensor block and stores temperature and voltage measurement data generated by the sensor block. In one embodiment, the control logic block of the RFID tag operates based on a system clock and the sensor block provides a reference clock to the control logic block for use in calibrating the system clock of the control logic block.

    摘要翻译： 耦合到提供用于为RFID标签的电路的一部分供电的电池电压的电池的半无源射频识别（RFID）标签包括接收和发送RF信号的RF通信块，包括频率比数字化的传感器块 用于交替测量环境温度和电池电压的温度传感器，以及与RF通信块和传感器块通信的控制逻辑块。 控制逻辑控制RF通信块和传感器块的操作，并存储由传感器块产生的温度和电压测量数据。 在一个实施例中，RFID标签的控制逻辑块基于系统时钟进行操作，并且传感器块向控制逻辑块提供参考时钟以用于校准控制逻辑块的系统时钟。