公开(公告)号：US08586461B2

公开(公告)日：2013-11-19

申请号：US12632571

申请日：2009-12-07

申请人： Jan-Michael Stevenson

发明人： Jan-Michael Stevenson

IPC分类号： H04N5/14 ,  H04N5/50

CPC分类号： H04B15/04 ,  H03D1/2245 ,  H03D3/008 ,  H03D3/009 ,  H04B1/0082 ,  H04B1/30 ,  H04B1/401 ,  H04B2215/065 ,  H04L25/061 ,  H04L27/364 ,  H04N5/455 ,  H04N5/46 ,  H04N21/42638 ,  H04N21/4382 ,  H04N21/6112

摘要： Systems and methods which provide a multimode tuner architecture implementing direct frequency conversion are shown. Embodiments provide a highly integrated configuration wherein low noise amplifier, tuner, analog and digital channel filter, and analog demodulator functionality are provided in a single integrated circuit. A LNA of embodiments implements a multi-path configuration with seamless switching to provide desired gain control while meeting noise and linearity design parameters. Embodiments of the invention implement in-phase and quadrature (IQ) equalization and a multimode channelization filter architecture to facilitate the use of direct frequency conversion. Embodiments implement spur avoidance techniques for improving tuner system operation and output using a clock signal generation architecture in which a system clock, sampling clock frequencies, local oscillator (LO) reference clock frequencies, and/or the like are dynamically movable.

摘要翻译： 示出了提供实现直接频率转换的多模调谐器架构的系统和方法。 实施例提供高度集成的配置，其中在单个集成电路中提供低噪声放大器，调谐器，模拟和数字信道滤波器以及模拟解调器功能。 实施例的LNA实现具有无缝切换的多路径配置，以在满足噪声和线性设计参数的同时提供期望的增益控制。 本发明的实施例实现了同相和正交（IQ）均衡和多模信道化滤波器架构，以便于直接频率转换的使用。 实施例实现了使用其中系统时钟，采样时钟频率，本地振荡器（LO）参考时钟频率等等是可动态移动的时钟信号生成架构来改进调谐器系统操作和输出的杂散避免技术。

公开(公告)号：US08570396B2

公开(公告)日：2013-10-29

申请号：US13091068

申请日：2011-04-20

申请人： Guy Rapaport

发明人： Guy Rapaport

IPC分类号： H04N5/235 ,  H04N5/238 ,  G06K9/40

CPC分类号： G06F3/1454 ,  G09G5/06 ,  G09G5/14 ,  G09G2320/02 ,  G09G2320/0285 ,  G09G2340/0414 ,  G09G2340/0421 ,  G09G2340/06 ,  G09G2340/10 ,  H04N5/232 ,  H04N5/23248 ,  H04N5/2355

摘要： Techniques for creating a High Dynamic Range (HDR) image within a consumer grade digital camera from a series of images of a scene captured at different exposure levels, and displaying the HDR image on the camera's built-in display are provided. The approach employs mixing images of the series to incorporate both scene shadow and highlight details, and the removing of “ghost” image artifacts appearing in the mixed HDR image resulting from movement in the scene over the time the series images are captured. The low computational resource utilization of the image mixing and ghost removal processing operations, along with the ability to commence image mixing and ghost removal prior to the acquisition of all series images, can significantly reduce the time required to generate and display a tone mapped HDR image.

公开(公告)号：US08554014B2

公开(公告)日：2013-10-08

申请号：US12549254

申请日：2009-08-27

申请人： Noam Levy ,  Meir Tzur

发明人： Noam Levy ,  Meir Tzur

IPC分类号： G06K9/36 ,  G06K9/20 ,  G06K9/00

CPC分类号： H04N5/232 ,  G06T3/4038 ,  H04N1/3876 ,  H04N5/23238

摘要： A camera that provides for a panorama mode of operation that employs internal software and internal acceleration hardware to stitch together two or more captured images to create a single panorama image with a wide format. Captured images are projected from rectilinear coordinates into cylindrical coordinates with the aid of image interpolation acceleration hardware. Matches are quickly determined between each pair of images with a block based search that employs motion estimation acceleration hardware. Transformation are found, utilizing regression and robust statistics techniques, to align the captured images with each other, which are applied to the images using the interpolation acceleration hardware. A determination is made for an optimal seam to stitch images together in the overlap region by finding a path which cuts through relatively non-noticeable regions so that the images can be stitched together into a single image with a wide panoramic effect.

摘要翻译： 提供全景操作模式的相机，采用内部软件和内部加速硬件将两个或多个捕获图像拼接在一起，以创建具有宽格式的单张全景图像。 捕获的图像借助于图像插值加速硬件从直线坐标投影到圆柱坐标。 在使用运动估计加速度硬件的基于块的搜索之间，在每对图像之间快速确定匹配。 使用回归和鲁棒的统计技术来发现转换，以便使用插值加速度硬件将所捕获的图像彼此对准，其应用于图像。 通过找到切割相对不显着的区域的路径，使得可以将图像拼接成具有宽全景效果的单个图像，从而确定最佳缝合以在重叠区域中将图像拼接在一起。

公开(公告)号：US08548037B1

公开(公告)日：2013-10-01

申请号：US12895501

申请日：2010-09-30

申请人： Stéphane Laurent-Michel

发明人： Stéphane Laurent-Michel

IPC分类号： H03H7/30

CPC分类号： H03H17/0294 ,  H03H17/0202 ,  H03L7/099 ,  H03L7/183

摘要： Automatic recalculation of tuner filter coefficients are made in order to compensate for changes in signal properties due to processing functionality in the tuner. The architecture compensates for processing changes, such as a large continuous range of clock frequency shifts, while not sacrificing bandwidth response characteristics of the channel filter. Embodiments may calculate coefficients in order to obtain response characteristics while utilizing a completely on-chip architecture, which does not require accessing off-chip software driver programs, and does not require complex look-up tables containing filter coefficients stored in onboard memory.

摘要翻译： 调谐器滤波器系数的自动重新计算是为了补偿由于调谐器中的处理功能引起的信号特性的变化。 该架构补偿处理变化，例如大的连续范围的时钟频率偏移，同时不牺牲信道滤波器的带宽响应特性。 实施例可以计算系数以获得响应特性，同时利用不需要访问片外软件驱动程序的完全片上架构，并且不需要包含存储在板载存储器中的滤波器系数的复杂查找表。

公开(公告)号：US20130232347A1

公开(公告)日：2013-09-05

申请号：US13412501

申请日：2012-03-05

申请人： Victor Pinto ,  Eyal Raz

发明人： Victor Pinto ,  Eyal Raz

IPC分类号： G06F1/26

CPC分类号： H03K19/0016

摘要： An integrated circuit (IC) includes a first power supply node that is arranged to receive a first power supply signal. The IC also includes process detection circuits. Each process detection circuit provides a process detection output signal such that a value associated with the process detection output signal is a function of process variation at a location of the process detection circuit outputting the process detection signal. The IC also includes a processing unit that executes the processor-executable instructions to provide at least one voltage control signal, based, at least in part, on the process detection signals. The voltage control signal(s) include a first voltage control signal is associated with a target voltage for the first power supply signal.

摘要翻译： 集成电路（IC）包括被配置为接收第一电源信号的第一电源节点。 该IC还包括处理检测电路。 每个处理检测电路提供处理检测输出信号，使得与处理检测输出信号相关联的值是输出处理检测信号的处理检测电路的位置处的处理变化的函数。 IC还包括处理单元，其执行处理器可执行指令以至少部分地基于处理检测信号提供至少一个电压控制信号。 电压控制信号包括与第一电源信号的目标电压相关联的第一电压控制信号。

公开(公告)号：US08509685B2

公开(公告)日：2013-08-13

申请号：US12433147

申请日：2009-04-30

申请人： Joakim Landmark

发明人： Joakim Landmark

IPC分类号： H04B7/00 ,  H04B1/38

CPC分类号： H04W52/0251 ,  Y02D70/00 ,  Y02D70/144 ,  Y02D70/164

摘要： Systems and methods for managing power consumption of a transceiver, e.g., Bluetooth, are provided. A representative transceiver includes an antenna that receives analog radio frequency (RF) signals, and a RF analog circuitry that receives and processes the analog RF signals from the antenna. An analog-to-digital converter (ADC) receives and converts the processed analog RF signals to digital RF signals. A digital circuitry includes a RF power detector that receives the digital RF signals and determines a RF power of the analog RF signals from the antenna based on the digital RF signals. A computing device instructs the RF analog circuitry to operate in low current drain RF receiver mode during page scanning and/or inquiry scanning. The computing device is designed to receive the RF power of the received analog RF signals and manages the power consumption of the transceiver based on the RF power.

摘要翻译： 提供了用于管理诸如蓝牙的收发器的功率消耗的系统和方法。 代表收发器包括接收模拟射频（RF）信号的天线和从该天线接收和处理模拟RF信号的RF模拟电路。 模数转换器（ADC）接收并转换处理后的模拟RF信号到数字RF信号。 数字电路包括RF功率检测器，其接收数字RF信号，并且基于数字RF信号确定来自天线的模拟RF信号的RF功率。 计算设备指示RF模拟电路在页扫描和/或查询扫描期间以低电流消耗RF接收器模式工作。 计算设备被设计为接收所接收的模拟RF信号的RF功率，并且基于RF功率管理收发器的功耗。

公开(公告)号：US08508605B2

公开(公告)日：2013-08-13

申请号：US12755958

申请日：2010-04-07

申请人： Yuri Dolgin ,  Anatoly Gurevich ,  Eran Pinhasov ,  Victor Pinto

发明人： Yuri Dolgin ,  Anatoly Gurevich ,  Eran Pinhasov ,  Victor Pinto

IPC分类号： H04N5/228

CPC分类号： H04N5/23248 ,  H04N5/23254 ,  H04N5/23264 ,  H04N5/374

摘要： A method and device are provided for method for stabilization of image data by an imaging device. In one embodiment, a method includes detecting image data for a first frame and a second frame, performing motion estimation to determine one or more motion vectors associated with global frame motion for image data of the first frame, performing an outlier rejection function to select at least one of the one or more motion vectors, and determining a global transformation for image data of the first frame based, at least in part, on motion vectors selected by the outlier rejection function. The method may further include determining a stabilization transformation for image data of the first frame by refining the global transformation to correct for unintentional motion and applying the stabilization transformation to image data of the first frame to stabilize the image data of the first frame.

摘要翻译： 提供了一种用于通过成像装置稳定图像数据的方法和装置。 在一个实施例中，一种方法包括检测第一帧和第二帧的图像数据，执行运动估计以确定与第一帧的图像数据的全局帧运动相关联的一个或多个运动矢量，执行异常值拒绝功能以在 至少部分地基于由异常值抑制功能选择的运动矢量来确定第一帧的图像数据的全局变换。 该方法可以进一步包括通过细化全局变换来校正无意运动并将稳定变换应用于第一帧的图像数据来稳定第一帧的图像数据来确定第一帧的图像数据的稳定变换。

公开(公告)号：US20130151146A1

公开(公告)日：2013-06-13

申请号：US13315202

申请日：2011-12-08

申请人： Qutub Salman Syed ,  Jaime B. Colley ,  Stefan Witanis ,  Terence Douglas Macaulay

发明人： Qutub Salman Syed ,  Jaime B. Colley ,  Stefan Witanis ,  Terence Douglas Macaulay

IPC分类号： G01C21/30

CPC分类号： G01S19/40 ,  G01C21/30 ,  G01C21/32 ,  G01S19/49

摘要： The present invention uses a map database which is created with the view of optimization in terms of size and complexity, so that it can be easily embedded into a navigation chip. The optimized map database is referred to as a “mini-map” database. The mini-map database easily integrates with the position calculation routine. The algorithm for position calculation includes a map-matching component, which is referred to as the “mini-map-matching” (MMM) algorithm, which is implemented on the navigation chip. Application of the present invention includes any navigation system for vehicles and/or pedestrians. The navigation system may include an inertial sensor, such as a dead-reckoning (DR) sensor, for further improvement in calculated positional accuracy when satellite signals are degraded due to environmental factors.

摘要翻译： 本发明使用在尺寸和复杂性方面优化的观点创建的地图数据库，从而可以容易地嵌入到导航芯片中。 优化的地图数据库被称为“迷你地图”数据库。 迷你地图数据库容易与位置计算程序集成。 用于位置计算的算法包括映射匹配组件，其被称为在导航芯片上实现的“迷你映射匹配”（MMM）算法。 本发明的应用包括用于车辆和/或行人的任何导航系统。 导航系统可以包括惯性传感器，例如推算（DR）传感器，用于当卫星信号由于环境因素而劣化时进一步改善计算的位置精度。

公开(公告)号：US20130144544A1

公开(公告)日：2013-06-06

申请号：US13309336

申请日：2011-12-01

申请人： Ayaskant Shrivastava

发明人： Ayaskant Shrivastava

IPC分类号： G06F19/00

CPC分类号： G01R31/318516 ,  G01R19/0084

摘要： Systems and methods in which circuitry programmability is tested through observing a change in voltage on a circuit node that is affected by the programmability under test. For example, one or more particular circuit node may be identified at which some measurable change in voltage occurs upon a change in state of a programmable circuit under test (PCUT). Thus, by detecting a change in voltage at such a circuit node in association with a programmable state change, embodiments may determine that respective circuit programmability is functional. Test circuitry of embodiments provides for circuitry programmability testing, through observing a change in voltage on a circuit node that is affected by the programmability under test, suitable for testing digital programmability which is deeply embedded in analog circuitry.

摘要翻译： 通过观察受到可测可编程性影响的电路节点上的电压变化来测试电路可编程性的系统和方法。 例如，可以识别一个或多个特定电路节点，在被测可编程电路（PCUT）的状态改变时，电压发生一些可测量的变化。 因此，通过检测与可编程状态变化相关联的这种电路节点处的电压变化，实施例可以确定相应的电路可编程性是有效的。 实施例的测试电路通过观察被受测程序可编程性影响的电路节点上的电压变化，提供电路可编程性测试，适用于测试深度嵌入在模拟电路中的数字可编程性。

公开(公告)号：US08457876B2

公开(公告)日：2013-06-04

申请号：US10600190

申请日：2003-06-20

申请人： Keith J. Brodie

发明人： Keith J. Brodie

IPC分类号： G01C21/00 ,  G01S7/78

CPC分类号： G01S5/0036 ,  G01C21/005 ,  G01S11/02 ,  G01S13/758 ,  G01S19/05 ,  G01S19/09 ,  G01S19/235 ,  G01S19/254 ,  G01S19/256 ,  G01S19/30 ,  G01S19/34 ,  G01S19/43 ,  G01S19/52

摘要： A system for determining the location of an object includes an interrogator remote from the object and a transponder located at the object. The interrogator receives GPS signals and transmits pre-positioning data and a tracking signal to the transponder. The pre-positioning data includes pseudorandom noise (PRN) code number, Doppler frequency offset and code phase offset while the tracking signal includes reference time and frequency information. The transponder collects RF samples of at least one of the GPS signals associated with one of the PRN code numbers and correlates the RF samples of the GPS signal against code replicas of the GPS signal based on the Doppler frequency offset, code phase offset and reference time and frequency information for that GPS signal to produce the correlation snapshot. The transponder transmits the correlation snapshot to the interrogator and the interrogator determines the pseudorange associated with the GPS signal using the correlation snapshot.

摘要翻译： 用于确定对象的位置的系统包括远离对象的询问器和位于该对象处的应答器。 询问器接收GPS信号并将预定位数据和跟踪信号发送到应答器。 预定位数据包括伪随机噪声（PRN）码数，多普勒频率偏移和码相位偏移，而跟踪信号包括参考时间和频率信息。 应答器收集与一个PRN码号相关联的至少一个GPS信号的RF样本，并且基于多普勒频率偏移，码相位偏移和参考时间将GPS信号的RF样本与GPS信号的代码副本相关联 以及该GPS信号的频率信息以产生相关快照。 应答器将相关快照发送到询问器，并且询问器使用相关快照来确定与GPS信号相关联的伪距。