公开(公告)号：US20140217945A1

公开(公告)日：2014-08-07

申请号：US13760622

申请日：2013-02-06

Applicant: Alan Patrick Cahill ,  Gary Casey ,  John A. Cleary ,  Eoin Edward English ,  Christian Jimenez ,  Javier Calpe Maravilla ,  Colin G. Lyden ,  Thomas F. Roche

Inventor： Alan Patrick Cahill ,  Gary Casey ,  John A. Cleary ,  Eoin Edward English ,  Christian Jimenez ,  Javier Calpe Maravilla ,  Colin G. Lyden ,  Thomas F. Roche

IPC: G01H13/00 ,  H02P31/00

CPC classification number: G01H13/00 ,  H02P25/028 ,  H02P25/034

Abstract: A method and apparatus for automatic resonance detection is disclosed for a motor-driven mechanical system such as a voice coil motor (VCM) in which a resonance detector and driver are provided. The automatic resonance detector may be implemented on the same integrated circuit as the driver, and dynamically determines the natural resonant frequency of the VCM driven by the driver. The resonant frequency is determined by measuring the back electromotive force (BEMF) of the VCM, detecting the slope of the BEMF signal, and determining the resonant frequency from the slope of the BEMF signal.

Abstract translation: 公开了一种用于自动共振检测的方法和装置，用于诸如提供谐振检测器和驱动器的音圈电机（VCM）的电动机械系统。 自动共振检测器可以在与驱动器相同的集成电路上实现，并且动态地确定由驱动器驱动的VCM的固有谐振频率。 谐振频率通过测量VCM的反电动势（BEMF），检测BEMF信号的斜率以及从BEMF信号的斜率确定谐振频率来确定。

公开(公告)号：US08712599B1

公开(公告)日：2014-04-29

申请号：US13774152

申请日：2013-02-22

Applicant: Analog Devices Technology

Inventor： Michael Westpfahl

IPC: G06F17/00

CPC classification number: B60R21/0132

Abstract: Integrated crash and vehicle movement sensing by use of distributed new multi-axis satellite sensors combines side and/or front/rear crash sensing with other applications requiring dynamic vehicle movement data like (but not limited to) roll and/or pitch detection as well as active suspension, head light beam leveling, etc. Depending on the required functionality, two or more satellite sensor modules are used, which measure multi-axis high-g and low-g acceleration, without needing any further sensor inputs like gyroscopes while achieving a high level of failsafe and redundancy.

Abstract translation: 通过使用分布式新型多轴卫星传感器的集成碰撞和车辆移动感测将侧面和/或前/后碰撞感测与其他需要动态车辆移动数据的应用相结合，例如（但不限于）滚动和/或俯仰检测以及 主动悬架，头光束调平等。根据所需的功能，使用两个或更多个卫星传感器模块，其测量多轴高g和低g加速度，而不需要任何其他传感器输入，如陀螺仪，同时实现 高水平的故障安全和冗余。

公开(公告)号：US20140115302A1

公开(公告)日：2014-04-24

申请号：US13963793

申请日：2013-08-09

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Andrew J. Higham ,  Boris Lemer ,  Kaushal Sanghai ,  Michael G. Perkins ,  John L. Redford ,  Michael S. Allen

IPC: G06F9/30

CPC classification number: G06F9/30072 ,  G06F9/30101 ,  G06F9/325 ,  G06F9/3887

Abstract: According to an example embodiment, a processor such as a digital signal processor (DSP), is provided with a register acting as a predicate counter. The predicate counter may include more than two useful values, and in addition to acting as a condition for executing an instruction, may also keep track of nesting levels within a loop or conditional branch. In some cases, the predicate counter may be configured to operate in single-instruction, multiple data (SIMD) mode, or SIMD-within-a-register (SWAR) mode.

Abstract translation: 根据示例性实施例，诸如数字信号处理器（DSP）的处理器被提供有用作谓词计数器的寄存器。 谓词计数器可以包括两个有用的值，并且除了用作执行指令的条件之外，还可以跟踪循环或条件分支内的嵌套级别。 在某些情况下，谓词计数器可以被配置为在单指令，多数据（SIMD）模式或SIMD-在寄存器（SWAR）模式下操作。

公开(公告)号：US20160112037A1

公开(公告)日：2016-04-21

申请号：US14517639

申请日：2014-10-17

Applicant: Colin G. LYDEN ,  Donal BOURKE

Inventor： Colin G. LYDEN ,  Donal BOURKE

IPC: H03K5/003 ,  H03H11/24 ,  G01N27/02

CPC classification number: H03K5/003 ,  G01N27/028 ,  G01N27/3273 ,  H03H11/24

Abstract: A control circuit for use with a four terminal sensor, such as a glucose sensor. The Glucose sensor is a volume product and typically its manufacture will want to make it as inexpensively as possible. This may give rise to variable impedances surrounding the active cell of the sensor. Typically the sensor has first and second drive terminals and first and second measurement terminals, so as to help overcome the impedance problem. The control circuit is arranged to drive at least one of the first and second drive terminals with an excitation signal, and control the excitation signal such that a voltage difference between the first and second measurement terminals is within a target range of voltages. To allow the control circuit to work with a variety of measurement cell types the control circuit further comprises voltage level shifters for adjusting a voltage at one or both of the drive terminals, or for adjusting a voltage received from one or both of the measurement terminals.

Abstract translation: 一种与四端传感器（例如葡萄糖传感器）一起使用的控制电路。 葡萄糖传感器是一种体积产品，通常其制造商希望尽可能地廉价。 这可能导致围绕传感器的有源电池的可变阻抗。 通常，传感器具有第一和第二驱动端子以及第一和第二测量端子，以便有助于克服阻抗问题。 控制电路被配置为用激励信号驱动第一和第二驱动端子中的至少一个，并且控制激励信号，使得第一和第二测量端子之间的电压差在目标电压范围内。 为了允许控制电路使用各种测量单元类型，控制电路还包括用于调节一个或两个驱动端子处的电压或用于调节从一个或两个测量端子接收的电压的电压电平移位器。

公开(公告)号：US20150326136A1

公开(公告)日：2015-11-12

申请号：US14274587

申请日：2014-05-09

Applicant: Bernhard STRZALKOWSKI

Inventor： Bernhard STRZALKOWSKI

IPC: H02M5/12 ,  H02M5/20 ,  H02M5/293

CPC classification number: H02M5/12 ,  H02J17/00 ,  H02J50/00 ,  H02J50/40 ,  H02M5/20 ,  H02M5/293 ,  H02M7/219 ,  H02M2007/2195 ,  Y02B70/1408

Abstract: A magnetic field energy harvesting device may include an inductor and a controller. The inductor may include two inductor windings connected to each other in series, configured in winding directions and orientations to generate two voltages relative to the middle tap of inductor and out of phase with each other. The controller may switch the two voltages and may generate an approximately constant DC output voltage by alternating switching on and off switches.

Abstract translation: 磁场能量收集装置可以包括电感器和控制器。 电感器可以包括彼此串联连接的两个电感器绕组，其被配置成绕组方向和取向，以相对于电感器的中间抽头产生两个电压并且彼此异相。 控制器可以切换两个电压，并且可以通过交替接通和断开开关来产生近似恒定的直流输出电压。

公开(公告)号：US20150256192A1

公开(公告)日：2015-09-10

申请号：US14202906

申请日：2014-03-10

Applicant: Avinash GUTTA ,  Sharad VIJAYKUMAR

Inventor： Avinash GUTTA ,  Sharad VIJAYKUMAR

IPC: H03M1/06 ,  H03M1/66

CPC classification number: H03M1/0617 ,  H03M1/0678 ,  H03M1/66 ,  H03M1/742

Abstract: An embodiment of a digital-to-analog converter circuit includes a resistor network connected to an output node, a switch network having a first plurality of switches connecting the resistor network to a first circuit node and a second plurality of switches connecting the resistor network to a second circuit node, a voltage reference to supply a reference voltage to the first circuit node, and a current generator connected to the first circuit node and the second circuit node, to generate a compensation current, draw the compensation current from the first circuit node, and supply the compensation current to the second circuit node. The current generator can generate the compensation current as a function of a current or a voltage of a component of the voltage reference or as a function of an analog output voltage produced at the output node.

Abstract translation: 数模转换器电路的实施例包括连接到输出节点的电阻器网络，具有将电阻器网络连接到第一电路节点的第一多个开关的开关网络和将电阻器网络连接到第二多个开关 第二电路节点，用于向第一电路节点提供参考电压的电压参考以及连接到第一电路节点和第二电路节点的电流发生器，以产生补偿电流，从第一电路节点抽取补偿电流 并向第二电路节点提供补偿电流。 电流发生器可以产生作为电压基准的分量的电流或电压的函数的补偿电流，或者作为在输出节点处产生的模拟输出电压的函数。

公开(公告)号：US20150242334A1

公开(公告)日：2015-08-27

申请号：US14187058

申请日：2014-02-21

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Andrew J. Higham ,  Gregory M. Yukna

IPC: G06F12/14 ,  G06F3/06

CPC classification number: G06F3/0673 ,  G06F3/061 ,  G06F3/0637 ,  G06F13/1668 ,  Y02D10/14

Abstract: In one example, there is disclosed herein a processor configured for interruptible atomic exclusive memory operations. For example, a load exclusive (LDEX) may be followed by a store exclusive (STREX), with the two together forming an atom. To facilitate timely handling of interrupts, the STREX operation is split into two parts. The STREX_INIT is not interruptible but has a determinate execution time because it takes a fixed number of clock cycles. The STREX_INIT sends the value out to the memory bus. It is followed by a STREX_SYNC operation that polls a flag for whether a return value is available. STREX_SYNC is interruptible, and methods are disclosed for determining whether, upon return from an interrupt, atomicity of the operation has been broken. If atomicity is broken, the instruction fails, while if atomicity is preserved, the instruction completes.

Abstract translation: 在一个示例中，本文公开了配置用于可中断原子排他存储器操作的处理器。 例如，负载独占（LDEX）可以后跟存储排他（STREX），两者一起形成一个原子。 为了方便及时处理中断，STREX操作分为两部分。 STREX_INIT不可中断，但具有确定的执行时间，因为它需要固定数量的时钟周期。 STREX_INIT将值发送到内存总线。 之后是一个STREX_SYNC操作，轮询一个标志是否返回值可用。 STREX_SYNC是可中断的，并且公开了用于确定在从中断返回时是否已经破坏操作的原子性的方法。 如果原子性被破坏，则指令失败，而如果保留原子性，则指令完成。

公开(公告)号：US20150229353A1

公开(公告)日：2015-08-13

申请号：US14175480

申请日：2014-02-07

Applicant: Kim Spetzler BERTHELSEN ,  Robert ADAMS ,  Kasper STRANGE

Inventor： Kim Spetzler BERTHELSEN ,  Robert ADAMS ,  Kasper STRANGE

IPC: H04B3/23

CPC classification number: H04B3/23 ,  H04M9/082

Abstract: A feedback cancellation assembly for an electroacoustic communication apparatus may include a signal transmission path for generation and emission of an outgoing sound signal to an external environment through an electrodynamic loudspeaker and a signal reception path comprising a microphone for generation of a microphone input signal corresponding to sound received from the external environment. The signal reception path may generate a digital microphone signal. The outgoing sound signal may be acoustically coupled to the microphone. An electronic feedback cancellation path may be coupled between a tapping node and a summing node to produce a feedback cancellation signal to the summing node.

Abstract translation: 用于电声通信设备的反馈消除组件可以包括用于通过电动扬声器产生和发射到外部环境的输出声音信号的信号传输路径，以及包括用于产生对应于声音的麦克风输入信号的麦克风的信号接收路径 从外部环境收到。 信号接收路径可以产生数字麦克风信号。 输出声音信号可以声学耦合到麦克风。 电子反馈消除路径可以耦合在轻敲节点和求和节点之间以产生到求和节点的反馈消除信号。

公开(公告)号：US20150207403A1

公开(公告)日：2015-07-23

申请号：US14160225

申请日：2014-01-21

Applicant: Barry P. KINSELLA

Inventor： Barry P. KINSELLA

IPC: H02M3/07

CPC classification number: H02M3/07 ,  H02M3/073

Abstract: A charge pump cell, comprising: an input node; an output node; Q channels, where Q is an integer greater than one, and where at least two of the channels comprise: a capacitor; a unidirectional current flow device; an output diode; and a channel drive signal node; and wherein a first current flow node of the unidirectional current flow device is connected to a first node of the capacitor at a channel node, a second node of the capacitor is connected to the channel drive signal node, a second current flow node of the unidirectional current flow device is connected to the input node, and the output diode is connected between the channel node and the output node

Abstract translation: 一种电荷泵单元，包括：输入节点; 输出节点; Q通道，其中Q是大于1的整数，并且其中至少两个通道包括：电容器; 单向电流装置; 输出二极管; 和信道驱动信号节点; 并且其中所述单向电流流动装置的第一电流流动节点在通道节点处连接到所述电容器的第一节点，所述电容器的第二节点连接到所述通道驱动信号节点，所述单向电流流动装置的第二电流流节点 电流流动装置连接到输入节点，输出二极管连接在通道节点和输出节点之间

公开(公告)号：US20150177771A1

公开(公告)日：2015-06-25

申请号：US14136774

申请日：2013-12-20

Applicant: Stefan MARINCA

Inventor： Stefan MARINCA

IPC: G05F3/18

CPC classification number: G05F3/185

Abstract: Circuits and method for providing voltage reference circuits that include low drift over time and lower operating voltages are provided. Generally, it is desirable that a reference circuit provide an accurate and precise reference over time. The voltage reference circuits described can provide for good long term stability, operation at lower voltages than prior designs, consistent output voltage with reduced variability due to process changes and mismatches, low noise in the reference voltage, and other advantages.

Abstract translation: 提供用于提供包括随时间的低漂移和较低工作电压的电压参考电路的电路和方法。 通常，期望参考电路随时间提供精确和精确的参考。 所描述的电压参考电路可以提供良好的长期稳定性，在比以前的设计更低的电压下操作，一致的输出电压由于过程变化和不匹配而降低的可变性，参考电压中的低噪声以及其它优点。