Method and apparatus for supplying auxiliary power to a bus coupled peripheral
    31.
    发明授权
    Method and apparatus for supplying auxiliary power to a bus coupled peripheral 有权
    向总线耦合外围设备提供辅助电源的方法和装置

    公开(公告)号:US07024569B1

    公开(公告)日:2006-04-04

    申请号:US10254433

    申请日:2002-09-24

    CPC classification number: G06F1/266

    Abstract: A method and apparatus for supplying auxiliary power to a peripheral is disclosed. The method includes supplying power from a first USB port of a host device to an input USB port of a USB hub device, supplying power through a downstream USB port of the USB hub device for use by a downstream USB device, supplying auxiliary power through a power output port of the USB hub device for use by a peripheral device that is coupled to an upstream port and supplying power from a second USB port of the host device to the peripheral device. The power received by the peripheral device is sufficient for its operation.

    Abstract translation: 公开了一种用于向外围设备提供辅助电力的方法和装置。 该方法包括从主机设备的第一USB端口向USB集线器设备的输入USB端口供电,通过USB集线器设备的下游USB端口供电,供下游USB设备使用,通过下列USB设备提供辅助电源 USB集线器设备的电源输出端口,用于耦合到上游端口的外围设备并且从主机设备的第二USB端口向外围设备供电。 外围设备接收的功率足以使其运行。

    Method and circuit for reading a potentiometer
    34.
    发明授权
    Method and circuit for reading a potentiometer 失效
    读取电位器的方法和电路

    公开(公告)号:US06737877B1

    公开(公告)日:2004-05-18

    申请号:US10232920

    申请日:2002-08-30

    CPC classification number: H03M1/50

    Abstract: Embodiments of the invention describe a method and apparatus used to determine the position of a wiper on a potentiometer without the need for an external ADC. Two capacitors are each connected to an end of a potentiometer, and then are charged or discharged simultaneously by a current source or current sink attached to the wiper of the potentiometer. The time required for each of the capacitors to charge or discharge to a threshold voltage level is measured and subsequently used to determine the position of the wiper on the potentiometer.

    Abstract translation: 本发明的实施例描述了一种用于确定电位器上的擦拭器的位置而不需要外部ADC的方法和装置。 两个电容器各自连接到电位计的末端,然后通过连接到电位计的擦拭器的电流源或电流源同时充电或放电。 测量每个电容器充电或放电到阈值电压电平所需的时间,随后用于确定电位器上擦拭器的位置。

    Intelligent voltage regulator
    35.
    发明授权
    Intelligent voltage regulator 有权
    智能稳压器

    公开(公告)号:US08786357B1

    公开(公告)日:2014-07-22

    申请号:US13466004

    申请日:2012-05-07

    Inventor: David G. Wright

    Abstract: An intelligent voltage regulator circuit in accordance with one embodiment of the invention can include a variable voltage generator that is coupled to receive an input voltage. Additionally, the intelligent voltage regulator circuit can include a processing element that is coupled to the variable voltage generator. The processing element can be coupled to receive programming for controlling a characteristic of the intelligent voltage regulator circuit. The processing element can be for dynamically changing the characteristic during operation of the intelligent voltage regulator circuit.

    Abstract translation: 根据本发明的一个实施例的智能稳压器电路可以包括耦合以接收输入电压的可变电压发生器。 另外,智能稳压电路可以包括耦合到可变电压发生器的处理元件。 处理元件可以被耦合以接收用于控制智能稳压器电路的特性的编程。 处理元件可以用于在智能稳压器电路的操作期间动态地改变特性。

    Programmable power supervisor
    37.
    发明授权
    Programmable power supervisor 有权
    可编程电源主管

    公开(公告)号:US08680902B1

    公开(公告)日:2014-03-25

    申请号:US13610623

    申请日:2012-09-11

    Inventor: David G. Wright

    Abstract: A programmable power-on reset circuit in accordance with one embodiment of the invention can include a programmable voltage divider. The programmable power-on reset circuit can also include a comparator that is coupled to the programmable voltage divider and that is coupled to receive a reference voltage. Additionally, the programmable power-on reset circuit can include a non-volatile memory that is coupled to the programmable voltage divider, wherein the non-volatile memory can be coupled to receive programming for controlling an output of the programmable voltage divider.

    Abstract translation: 根据本发明的一个实施例的可编程上电复位电路可以包括可编程分压器。 可编程上电复位电路还可以包括耦合到可编程分压器并且被耦合以接收参考电压的比较器。 此外,可编程上电复位电路可以包括耦合到可编程分压器的非易失性存储器,其中非易失性存储器可以被耦合以接收用于控制可编程分压器的输出的编程。

    Method and apparatus for tuning a radio receiver with a radio transmitter
    38.
    发明授权
    Method and apparatus for tuning a radio receiver with a radio transmitter 有权
    用无线电发射机调谐无线电接收机的方法和装置

    公开(公告)号:US08521097B1

    公开(公告)日:2013-08-27

    申请号:US13149672

    申请日:2011-05-31

    Inventor: David G. Wright

    CPC classification number: H03J7/04

    Abstract: An example wireless device includes a radio receiver to measure a signal quality of a data signal independent of a direct frequency measurement, the signal quality correlated to an offset between a transmitter reference frequency and a receiver reference frequency but not indicative of a direction of the offset. The example wireless device further includes a reference frequency generator to determine from the measured signal quality that a previous adjustment to the receiver reference frequency in a first direction has worsened the signal quality, and responsive to that determination adjust the receiver reference frequency in a second direction that is opposite to the first direction.

    Abstract translation: 示例性无线设备包括无线电接收器,用于独立于直接频率测量来测量数据信号的信号质量,信号质量与发射机参考频率与接收机参考频率之间的偏移相关,但不指示偏移的方向 。 示例性无线设备还包括参考频率发生器,用于根据测量的信号质量确定在第一方向上对接收机参考频率的先前调整已经恶化了信号质量,并且响应于该确定在第二方向上调整接收机参考频率 这与第一个方向相反。

    Circuit for reading buttons and controlling light emitting diodes
    39.
    发明授权
    Circuit for reading buttons and controlling light emitting diodes 有权
    读取按钮和控制发光二极管的电路

    公开(公告)号:US08462121B1

    公开(公告)日:2013-06-11

    申请号:US13032640

    申请日:2011-02-22

    Inventor: David G. Wright

    CPC classification number: H03M11/20 H01H2239/012

    Abstract: A circuit including a first pin connection, a second pin connection, a first diode-switch arrangement and a second diode-switch arrangement. The first diode-switch arrangement is connected in series and configured to allow a current to pass from the second pin connection to the first pin connection. The second diode-switch arrangement is connected in series and configured to allow a current to pass from the first pin connection to the second pin connection. An energized state of the first and second diode-switch arrangements is determined according to a voltage detected on the first or second pin connection.

    Abstract translation: 一种包括第一引脚连接,第二引脚连接,第一二极管开关装置和第二二极管开关装置的电路。 第一二极管开关装置串联连接并且被配置为允许电流从第二引脚连接传递到第一引脚连接。 第二二极管开关装置串联连接并且被配置为允许电流从第一引脚连接传递到第二引脚连接。 根据在第一或第二引脚连接上检测到的电压来确定第一和第二二极管开关装置的通电状态。

    Method and apparatus for binding peripheral devices to a computer

    公开(公告)号:US08384670B1

    公开(公告)日:2013-02-26

    申请号:US12607282

    申请日:2009-10-28

    Inventor: David G. Wright

    CPC classification number: G06F9/453

    Abstract: A non-keyboard computer peripheral device represents itself to a host computer as having a keyboard function in addition to representing its actual function. Keyboard status signals are generated by the host computer in response to a user pressing different keys on an actual keyboard. The peripheral device uses the keyboard status signals to identify different peripheral device operations selected by the user. In one example, a radio receiving device represents itself to the host computer as including the keyboard function. Pressing a button on the receiving device causes the receiving device to send a sequence of keystroke commands to the host computer that cause the host computer to initiate software applications and to display operating instructions to a user. A series of further binding operations are then executed in accordance with the displayed operating instructions.

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