公开(公告)号：US20150063708A1

公开(公告)日：2015-03-05

申请号：US14013122

申请日：2013-08-29

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Anil M. Sripadarao ,  Bijesh Poyil

IPC: G06T7/00 ,  G06K9/62

CPC classification number: G06T7/0085 ,  G06K9/00228 ,  G06K9/4614 ,  G06K9/6256 ,  G06K9/6267 ,  G06K9/6282

Abstract: In one aspect, there is disclosed a digital signal processor and method performed by the same for performing object detection, including facial detection, in a reduced number of clock cycles. The method comprises using Sobel edge detection to identify regions with many edges, and classifying those regions as foreground candidates. Foreground candidates are further checked for vertical or horizontal symmetry, and symmetrical windows are classified as face candidates. Viola-Jones type facial detection is then performed only on those windows identified as face candidates.

Abstract translation: 在一个方面，公开了一种数字信号处理器及其方法，该数字信号处理器和方法由减少数量的时钟周期执行，用于执行包括面部检测的对象检测。 该方法包括使用Sobel边缘检测来识别具有许多边缘的区域，并将这些区域分类为前景候选。 进一步检查前景候选者的垂直或水平对称性，对称窗口被分类为面部候选。 然后仅在被识别为面部候选的那些窗口上执行Viola-Jones型面部检测。

公开(公告)号：US20150061908A1

公开(公告)日：2015-03-05

申请号：US14179279

申请日：2014-02-12

Applicant: Sanjay RAJASEKHAR ,  Abhilasha KAWLE ,  Roberto S. MAURINO ,  Srikanth NITTALA

Inventor： Sanjay RAJASEKHAR ,  Abhilasha KAWLE ,  Roberto S. MAURINO ,  Srikanth NITTALA

IPC: H03M1/66

CPC classification number: H03M1/0678 ,  H03M1/0863 ,  H03M3/464 ,  Y10T307/76

Abstract: A digital-to-analog (DAC) element may include a plurality of switches arranged to form two circuit branches between a current source and a first and a second outputs. The first circuit branch may include two switches defining parallel current paths between the current source and the first output terminal. The second circuit branch may include two switches defining parallel current paths between the current source and the second output terminal. A control circuit, responsive to an input signal that selects one of the circuit branches, may provide control signals to close one of switches in the selected circuit branch in a first portion of a clock cycle and to close the other of the switches in the selected circuit branch in a second portion of the clock cycle.

Abstract translation: 数模（DAC）元件可以包括布置成在电流源和第一和第二输出之间形成两个电路分支的多个开关。 第一电路支路可以包括限定电流源和第一输出端之间的并联电流路径的两个开关。 第二电路支路可以包括定义电流源和第二输出端之间的并联电流路径的两个开关。 响应于选择电路分支之一的输入信号的控制电路可以提供控制信号以在时钟周期的第一部分中关闭所选择的电路分支中的一个开关，并且关闭所选择的开关中的另一个 电路在时钟周期的第二部分中分支。

公开(公告)号：US20150035387A1

公开(公告)日：2015-02-05

申请号：US13955866

申请日：2013-07-31

Applicant: Analog Devices Technology

Inventor： John G. Macnamara ,  Padraig L. Fitzgerald ,  Raymond C. Goggin ,  Bernard P. Stenson

IPC: H01H59/00 ,  B81C1/00

CPC classification number: H01H59/0009 ,  B81B7/007 ,  B81B2201/014 ,  B81B2207/092 ,  B81C1/00341 ,  H01H2001/0052 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2224/49109 ,  H01L2924/181 ,  Y10T307/937 ,  H01L2924/00012 ,  H01L2924/00014 ,  H01L2924/00

Abstract: A MEMS switch device including: a substrate layer; an insulating layer formed over the substrate layer; and a MEMS switch module having a plurality of contacts formed on the surface of the insulating layer, wherein the insulating layer includes a number of conductive pathways formed within the insulating layer, the conductive pathways being configured to interconnect selected contacts of the MEMS switch module.

Abstract translation: 一种MEMS开关装置，包括：基板层; 形成在所述基板层上的绝缘层; 以及MEMS开关模块，其具有形成在所述绝缘层的表面上的多个触点，其中所述绝缘层包括形成在所述绝缘层内的多个导电路径，所述导电路径被配置为互连所述MEMS开关模块的选定触点。

公开(公告)号：US20150028823A1

公开(公告)日：2015-01-29

申请号：US13949776

申请日：2013-07-24

Applicant: Dan LI ,  Jinhua NI

Inventor： Dan LI ,  Jinhua NI

IPC: G05F1/66

CPC classification number: G05F1/66 ,  H02M3/156 ,  H02M2001/0025

Abstract: A circuit may include a detector, a modulator, a switch, and a stabilizer. The detector may detect current supplied to an output of the circuit to generate an overcurrent signal. The modulator may modulate a pulse signal based upon the output of the circuit. The switch may control a power stage to generate the output of the circuit based upon the overcurrent signal and the pulse signal. The stabilizer may send an offset signal to the modulator. The stabilizer may generate the offset signal with a magnitude adjusted based upon the overcurrent signal, and the modulator may adjust the pulse signal based upon the offset signal.

Abstract translation: 电路可以包括检测器，调制器，开关和稳定器。 检测器可以检测提供给电路的输出的电流以产生过电流信号。 调制器可以基于电路的输出来调制脉冲信号。 开关可以基于过电流信号和脉冲信号来控制功率级以产生电路的输出。 稳定器可以向调制器发送偏移信号。 稳定器可以产生基于过电流信号调整幅度的偏移信号，并且调制器可以基于偏移信号调整脉冲信号。

公开(公告)号：US20140362949A1

公开(公告)日：2014-12-11

申请号：US13914970

申请日：2013-06-11

Applicant: Patrick Pratt

Inventor： Patrick Pratt

IPC: H03F1/32 ,  H04B1/04

CPC classification number: H03F1/3241 ,  H03F1/3247 ,  H03F3/189 ,  H03F3/245 ,  H04B1/0475 ,  H04B2001/0425

Abstract: A predetermined nonlinearity may be introduced between a digital predistorter and a power amplifier of a RF transmitter. The nonlinearity may be applied to an output of a digital predistorter. The application of the nonlinearity to the predistorter output may expand a bandwidth of the predistorter output from a first lower bandwidth to a higher second bandwidth of the power amplifier that may be needed to support a predetermined data transfer rate at the RF transmitter. Introducing this nonlinearity between the predistorter and the power amplifier may reduce the sampling rate and power requirements of components included as part of a predistortion device. As a result less noise may be generated and less power may be consumed, resulting in smaller, more efficient, and more accurate predistortion and/or RF transmission systems.

Abstract translation: 可以在RF发射机的数字预失真器和功率放大器之间引入预定的非线性。 非线性可以应用于数字预失真器的输出。 将非线性应用于预失真器输出可以将预失真器输出的带宽从第一较低带宽扩展到功率放大器的较高的第二带宽，以支持RF发射器处的预定数据传输速率。 引入预失真器和功率放大器之间的这种非线性可以降低作为预失真器件的一部分所包含的元件的采样率和功率要求。 因此，可能产生较少的噪声并且可能消耗更少的功率，导致更小，更有效和更准确的预失真和/或RF传输系统。

公开(公告)号：US08884802B2

公开(公告)日：2014-11-11

申请号：US13920083

申请日：2013-06-18

Applicant: Analog Devices Technology

Inventor： Zhao Li ,  Shipra Bhal ,  Kevin Glenn Gard ,  David Alldred ,  Christopher Mayer ,  Trevor Clifford Caldwell ,  David J. McLaurin ,  Victor Kozlov

IPC: H03M1/34 ,  H03M1/10 ,  H03M1/00 ,  H03M1/12

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。

公开(公告)号：US20140269985A1

公开(公告)日：2014-09-18

申请号：US13828989

申请日：2013-03-14

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Haim Primo ,  Manish J. Manglani ,  Yosef Stein

IPC: H04B1/04

CPC classification number: H04B1/0475 ,  H03D7/165 ,  H03D2200/0043 ,  H04L25/061 ,  H04L27/364 ,  H04L27/366

Abstract: Apparatus and methods for estimating a direct current offset in an upconverter are disclosed. Samples of a first signal are received. Values of a compensation signal are retrieved. For example, the compensation signal can be a component in a modified baseband signal, wherein the modified baseband signal is upconverted, downconverted, and filtered to generate the first signal. An estimate of a first DC offset induced by an upconverter is generated based at least partly on at least two selected samples of the first signal and corresponding values of the compensation signal.

Abstract translation: 公开了用于估计上变频器中的直流偏移的装置和方法。 接收第一信号的样本。 检索补偿信号的值。 例如，补偿信号可以是修改的基带信号中的分量，其中修改的基带信号被上变频，下变频和滤波以产生第一信号。 至少部分地基于第一信号的至少两个选定样本和补偿信号的对应值来生成由上变频器引起的第一DC偏移的估计。

公开(公告)号：US20140269858A1

公开(公告)日：2014-09-18

申请号：US14168881

申请日：2014-01-30

Applicant: Dzianis LUKASHEVICH ,  Patrick PRATT

Inventor： Dzianis LUKASHEVICH ,  Patrick PRATT

IPC: H04L25/08

CPC classification number: H04L25/08 ,  H04B1/525

Abstract: In a multi transmitter-receiver system, transmitter noise cancellation may be applied selectively for certain transmitters by exploiting asymmetries of the system. Hence, observation receiver(s) numbering less than the number of transmitters may be provided saving space and cost. Each observation receiver may selectively couple to a transmitter path and estimate the leakage noise from that transmitter. Based on the estimated leakage noise, noise cancellation may be applied to corresponding receiver path(s). Selection of the transmitters for leakage estimation may be based on system conditions at that time, which may be known to the system or may be estimated dynamically.

Abstract translation: 在多发射机 - 接收机系统中，通过利用系统的不对称性，可以选择性地对某些发射机应用发射机噪声消除。 因此，可以提供小于发射机数量的观测接收机节省空间和成本。 每个观测接收机可以选择性地耦合到发射机路径并估计来自该发射机的泄漏噪声。 基于估计的泄漏噪声，噪声消除可以应用于相应的接收机路径。 用于泄漏估计的发射机的选择可以基于当时的系统条件，其可以是系统可知的或者可以动态地估计。

公开(公告)号：US20140268917A1

公开(公告)日：2014-09-18

申请号：US13803833

申请日：2013-03-14

Applicant: Shaoyu MA ,  Tianting ZHAO ,  Baoxing CHEN

Inventor： Shaoyu MA ,  Tianting ZHAO ,  Baoxing CHEN

IPC: H02M3/335 ,  H03F1/02

CPC classification number: H02M3/33523 ,  H02M3/33515 ,  Y02B70/1483

Abstract: A power converter may include an amplifier that generates an error signal, a modulator that generates a modulated error signal, an isolator that generates an isolated modulated error signal, and a demodulator that generates an isolated error signal, which may be substantially proportional to the difference between the output signal and the reference signal, and a controller that controls a power stage to generate the output signal of the power converter.

Abstract translation: 功率转换器可以包括产生误差信号的放大器，产生调制误差信号的调制器，产生隔离调制误差信号的隔离器，以及产生隔离误差信号的解调器，该解调器可以与差异基本成比例 在输出信号和参考信号之间，以及控制功率级以产生功率转换器的输出信号的控制器。

公开(公告)号：US20140254431A1

公开(公告)日：2014-09-11

申请号：US13790071

申请日：2013-03-08

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Dongqin Yan ,  Yang Pan ,  Olafur M. Josefsson

IPC: H04L12/24

CPC classification number: H04Q11/04 ,  H04Q2213/13292 ,  H04Q2213/13322 ,  H04Q2213/1336

Abstract: Advanced TDM daisy-chain configurations utilize data transmission over a frame sync signal path with feedback to allow for communication between the master device and slave devices and/or between individual slave devices while maintaining a simple TDM communication interface. In certain daisy-chain configurations, the feedback path returns to the frame sync signal path between the master device and the first slave device, which allows for transmission of data from the last slave device to the master device and/or to the first slave device. In other daisy-chain configurations, the feedback path returns to the frame sync signal path between the first slave device and the second slave device, which allows for transmission of data from the last slave device to the first slave device (which may transfer data to the master device, e.g., over separate command and/or data lines) and/or to the first slave device.

Abstract translation: 高级TDM菊花链配置利用具有反馈的帧同步信号路径上的数据传输，以允许主设备和从设备之间和/或各个从设备之间的通信，同时保持简单的TDM通信接口。 在某些菊花链配置中，反馈路径返回到主设备和第一从设备之间的帧同步信号路径，其允许从最后从设备向主设备和/或第一从设备传输数据 。 在其他菊花链配置中，反馈路径返回到第一从设备和第二从设备之间的帧同步信号路径，其允许从最后从设备向第一从设备传输数据（其可以将数据传送到 主设备，例如通过单独的命令和/或数据线）和/或到第一从设备。