公开(公告)号：US09263103B2

公开(公告)日：2016-02-16

申请号：US12049928

申请日：2008-03-17

申请人： Thomas J. Giovannini ,  Alok Gupta ,  Ian Shaeffer ,  Steven C. Woo

发明人： Thomas J. Giovannini ,  Alok Gupta ,  Ian Shaeffer ,  Steven C. Woo

IPC分类号： G06F12/00 ,  G11C11/4076 ,  G06F3/06 ,  G06F5/06 ,  G06F1/08 ,  G11C7/10 ,  G06F13/16 ,  G06F12/06 ,  G11C11/409

CPC分类号： G11C11/4076 ,  G06F1/08 ,  G06F3/0629 ,  G06F3/0634 ,  G06F5/06 ,  G06F12/0646 ,  G06F13/1689 ,  G11C7/1078 ,  G11C7/1087 ,  G11C7/1093 ,  G11C11/409 ,  G11C11/4096 ,  G11C2207/2254

摘要： A system that calibrates timing relationships between signals involved in performing write operations is described. This system includes a memory controller which is coupled to a set of memory chips, wherein each memory chip includes a phase detector configured to calibrate a phase relationship between a data-strobe signal and a clock signal received at the memory chip from the memory controller during a write operation. Furthermore, the memory controller is configured to perform one or more write-read-validate operations to calibrate a clock-cycle relationship between the data-strobe signal and the clock signal, wherein the write-read-validate operations involve varying a delay on the data-strobe signal relative to the clock signal by a multiple of a clock period. In a variation of this system, the phase detector on the memory chip is configured to receive signals including a clock signal, a marking signal and a data-strobe signal from the memory controller, wherein the marking signal includes a pulse which marks a specific clock cycle in the clock signal. In this variation, the phase detector is configured to use the marking signal to window the specific clock cycle in the clock signal, and to use the data-strobe signal to capture the windowed clock signal, thereby creating a feedback signal which is returned to the memory controller to facilitate calibration of the timing relationship.

摘要翻译： 描述了校准执行写操作所涉及的信号之间的时序关系的系统。 该系统包括耦合到一组存储器芯片的存储器控​​制器，其中每个存储器芯片包括相位检测器，该相位检测器被配置为在数据选通信号和存储器芯片之间从存储器控制器接收的时钟信号之间校准相位关系 一个写操作。 此外，存储器控制器被配置为执行一个或多个写入读取验证操作以校准数据选通信号和时钟信号之间的时钟周期关系，其中写入 - 读取验证操作涉及改变在 相对于时钟信号的数据选通信号乘以时钟周期的倍数。 在该系统的变型中，存储器芯片上的相位检测器被配置为从存储器控制器接收包括时钟信号，标记信号和数据选通信号的信号，其中标记信号包括标记特定时钟的脉冲 在时钟信号周期。 在该变型中，相位检测器被配置为使用标记信号来在时钟信号中画出特定时钟周期，并且使用数据选通信号来捕获窗口化的时钟信号，从而产生返回到 内存控制器便于校准时序关系。

公开(公告)号：US20150255144A1

公开(公告)日：2015-09-10

申请号：US14698755

申请日：2015-04-28

申请人： Thomas J. Giovannini ,  Alok Gupta ,  Ian Shaeffer ,  Steven C. Woo

发明人： Thomas J. Giovannini ,  Alok Gupta ,  Ian Shaeffer ,  Steven C. Woo

IPC分类号： G11C11/4076 ,  G11C11/409

CPC分类号： G11C11/4076 ,  G06F1/08 ,  G06F3/0629 ,  G06F3/0634 ,  G06F5/06 ,  G06F12/0646 ,  G06F13/1689 ,  G11C7/1078 ,  G11C7/1087 ,  G11C7/1093 ,  G11C11/409 ,  G11C11/4096 ,  G11C2207/2254

摘要： A system that calibrates timing relationships between signals involved in performing write operations is described. This system includes a memory controller which is coupled to a set of memory chips, wherein each memory chip includes a phase detector configured to calibrate a phase relationship between a data-strobe signal and a clock signal received at the memory chip from the memory controller during a write operation. Furthermore, the memory controller is configured to perform one or more write-read-validate operations to calibrate a clock-cycle relationship between the data-strobe signal and the clock signal, wherein the write-read-validate operations involve varying a delay on the data-strobe signal relative to the clock signal by a multiple of a clock period.

摘要翻译： 描述了校准执行写操作所涉及的信号之间的时序关系的系统。 该系统包括耦合到一组存储器芯片的存储器控​​制器，其中每个存储器芯片包括相位检测器，该相位检测器被配置为在数据选通信号和存储器芯片之间从存储器控制器接收的时钟信号之间校准相位关系 一个写操作。 此外，存储器控制器被配置为执行一个或多个写入读取验证操作以校准数据选通信号和时钟信号之间的时钟周期关系，其中写入 - 读取验证操作涉及改变在 相对于时钟信号的数据选通信号乘以时钟周期的倍数。

公开(公告)号：US20090207195A1

公开(公告)日：2009-08-20

申请号：US12034598

申请日：2008-02-20

申请人： Vance Chin ,  Brandon Sneed ,  Joe Betts LaCroix ,  Alok Gupta ,  Richard Pocklington

发明人： Vance Chin ,  Brandon Sneed ,  Joe Betts LaCroix ,  Alok Gupta ,  Richard Pocklington

IPC分类号： G09G5/391

CPC分类号： G09G5/391 ,  G09G2340/0407 ,  G09G2340/0464 ,  G09G2340/145

摘要： In one embodiment, a video signal is displayed on a display screen in two or more resolutions. The video signal may be of a first resolution and the display screen may be set to a second resolution. In one embodiment, the video signal resolution is of a size that is greater than the size of the display screen resolution. The method includes displaying a first portion of the video signal in a first resolution in a first region of the display. A second portion of the video signal is then displayed in a second resolution in a second region of the display. The second resolution is a resolution that displays at least a portion of the video signal that would be off screen if the video signal is displayed in the first resolution. Accordingly, more of the signal can be displayed on the screen.

摘要翻译： 在一个实施例中，视频信号以两个或多个分辨率显示在显示屏幕上。 视频信号可以是第一分辨率，并且可以将显示屏设置为第二分辨率。 在一个实施例中，视频信号分辨率的尺寸大于显示屏分辨率的大小。 该方法包括在显示器的第一区域中以第一分辨率显示视频信号的第一部分。 然后，视频信号的第二部分以显示器的第二区域中的第二分辨率显示。 第二分辨率是如果以第一分辨率显示视频信号，则显示视频信号的至少一部分将被截止的屏幕的分辨率。 因此，可以在屏幕上显示更多的信号。

公开(公告)号：US07458936B2

公开(公告)日：2008-12-02

申请号：US10703024

申请日：2003-11-06

申请人： Xiang Sean Zhou ,  Dorin Comaniciu ,  Alok Gupta ,  Visvanathan Ramesh ,  Bhavani Duggirala ,  Diane Paine

发明人： Xiang Sean Zhou ,  Dorin Comaniciu ,  Alok Gupta ,  Visvanathan Ramesh ,  Bhavani Duggirala ,  Diane Paine

IPC分类号： A61B8/00

CPC分类号： G06K9/6276 ,  A61B8/0883 ,  G06F19/00 ,  G06K9/6256 ,  G06K2209/05 ,  G06Q50/22 ,  G16H50/20 ,  Y10S128/92 ,  Y10S128/924

摘要： A system and method for providing decision support to a physician during a medical examination is disclosed. Data is received from a sensor representing a particular medical measurement. The received data includes image data. The received data and context data is analyzed with respect to one or more sets of training models. Probability values for the particular medical measurement and other measurements to be taken are derived based on the analysis and based on identified classes. The received image data is compared with training images. Distance values are determined between the received image data and the training images, and the training images are associated with the identified classes. Absolute value feature sensitivity scores are derived for the particular medical measurement and other measurements to be taken based on the analysis. The probability values, distance values and absolute value feature sensitivity scores are outputted to the user.

摘要翻译： 公开了一种用于在医学检查期间向医师提供决策支持的系统和方法。 从代表特定医疗测量的传感器接收数据。 所接收的数据包括图像数据。 相对于一组或多组训练模型分析接收到的数据和上下文数据。 特定医疗测量和其他测量的概率值基于分析并基于识别的类别导出。 将接收到的图像数据与训练图像进行比较。 在接收的图像数据和训练图像之间确定距离值，并且训练图像与所识别的类别相关联。 基于分析，针对特定医疗测量和其他测量得出绝对值特征灵敏度得分。 将概率值，距离值和绝对值特征灵敏度得分输出给用户。

公开(公告)号：US07391893B2

公开(公告)日：2008-06-24

申请号：US10858270

申请日：2004-06-01

申请人： Jianming Liang ,  Luca Bogoni ,  Alok Gupta

发明人： Jianming Liang ,  Luca Bogoni ,  Alok Gupta

IPC分类号： G06K9/00

CPC分类号： G06K9/48

摘要： A system and method for detecting a shape in an image are provided. The method comprises: constructing a deformable model from an image; deforming the deformable model to remove an undesired shape in a portion of the image; computing properties of the deformed model to enable detection of a desired shape in the portion of the image; and detecting the desired shape based on the computed properties.

摘要翻译： 提供了用于检测图像中的形状的系统和方法。 该方法包括：从图像构建可变形模型; 使可变形模型变形以去除图像的一部分中的不期望的形状; 计算变形模型的属性，以便能够检测图像部分中期望的形状; 并基于所计算的特性来检测所需的形状。

公开(公告)号：US20060101076A1

公开(公告)日：2006-05-11

申请号：US10985363

申请日：2004-11-10

申请人： Parag Patel ,  Alok Gupta

发明人： Parag Patel ,  Alok Gupta

IPC分类号： G06F17/00

CPC分类号： G06F3/0481

摘要： An electronic file system graphic user interface for representation of electronic files. The graphic user interface includes a graphically indicated first main folder, a graphically indicated second main folder, and user defined relationship symbology displayable between the first and second main folders. The electronic files are represented as storable in the first and second main folders.

摘要翻译： 用于表示电子文件的电子文件系统图形用户界面。 图形用户界面包括图形指示的第一主文件夹，图形指示的第二主文件夹以及可在第一和第二主文件夹之间显示的用户定义的关系符号系统。 电子文件被表示为可存储在第一和第二主文件夹中。

公开(公告)号：US20050152326A1

公开(公告)日：2005-07-14

申请号：US10754796

申请日：2004-01-08

申请人： Rajiv Vijayan ,  Alok Gupta ,  Raghuraman Krishnamoorthi

发明人： Rajiv Vijayan ,  Alok Gupta ,  Raghuraman Krishnamoorthi

IPC分类号： H04L27/26 ,  H04J11/00

CPC分类号： H04L27/2656 ,  H04L27/2657 ,  H04L27/2675

摘要： Frequency error estimation and frame synchronization are performed at a receiver in an OFDM system based on a metric that is indicative of detected pilot power. The metric may be defined based on cross-correlation between two received symbols obtained in two OFDM symbol periods. For frequency error estimation, a metric value is computed for each of multiple hypothesized frequency errors. The hypothesized frequency error for the metric value with the largest magnitude is provided as the estimated frequency error. For frame synchronization, a correlation value is obtained for each OFDM symbol period by correlating metric values obtained for NC (e.g., most recent) OFDM symbol periods with NC expected values. The expected values are computed in a manner consistent with the manner in which the metric values are computed. Peak detection is performed on the correlation values obtained for different OFDM symbol periods to determine frame synchronization.

摘要翻译： 基于指示检测到的导频功率的度量，在OFDM系统中的接收机处执行频率误差估计和帧同步。 可以基于在两个OFDM符号周期中获得的两个接收符号之间的互相关来定义度量。 对于频率误差估计，针对多个假设的频率误差中的每一个计算度量值。 提供具有最大幅度的度量值的假设频率误差作为估计的频率误差。 对于帧同步，通过将针对N N C C（例如，最近的）OFDM符号周期获得的度量值与N C 3期望值相关联，获得每个OFDM符号周期的相关值 。 以与计算度量值的方式一致的方式计算期望值。 对针对不同的OFDM符号周期获得的相关值执行峰值检测以确定帧同步。

公开(公告)号：US06563941B1

公开(公告)日：2003-05-13

申请号：US09460746

申请日：1999-12-14

申请人： Thomas O'Donnell ,  Alok Gupta ,  Schmuel Aharon

发明人： Thomas O'Donnell ,  Alok Gupta ,  Schmuel Aharon

IPC分类号： G06T1740

CPC分类号： G06T3/4061 ,  G06T7/33 ,  G06T7/38 ,  G06T2207/30004

摘要： A method for registration of magnetic resonance (MR) and computed topography (CT) images, in accordance with the present invention includes providing MR images having a region of interest delineated by first contours and providing CT images having the region of interest delineated by second contours. A pre-existing model of the region of interest is also provided. The pre-existing model is fit to the first contours or the second contours to provide a first resultant model. The first resultant model is then copied to provide a copied model. The copied model is fit to the other of the first contours and the second contours to provide a second resultant model. By rotating and translating the first resultant model and the second resultant model, the first resultant model and the second resultant model are registered. The rotation and translation information are stored and applied to the images to provide registration between the MR images and the CT image

摘要翻译： 根据本发明的用于配准磁共振（MR）和计算的地形（CT）图像的方法包括提供具有由第一轮廓描绘的感兴趣区域的MR图像，并且提供具有由第二轮廓描绘的兴趣区域的CT图像 。 还提供了目前所关注区域的一个预先存在的模型。 预先存在的模型适合于第一轮廓或第二轮廓以提供第一结果模型。 然后复制第一个结果模型以提供复制的模型。 复制的模型适合于第一轮廓和第二轮廓中的另一个，以提供第二结果模型。 通过旋转和平移第一结果模型和第二结果模型，记录第一结果模型和第二结果模型。 旋转和平移信息被存储并应用于图像以提供MR图像与CT图像之间的配准

公开(公告)号：US5923770A

公开(公告)日：1999-07-13

申请号：US724698

申请日：1996-09-30

申请人： Thomas O'Donnell ,  Terrance E. Boult ,  Alok Gupta

发明人： Thomas O'Donnell ,  Terrance E. Boult ,  Alok Gupta

IPC分类号： G06K9/64 ,  G06T7/20 ,  G06K9/00 ,  C07C15/00

CPC分类号： G06T7/2046 ,  G06K9/6206 ,  G06T2207/10088 ,  G06T2207/30048

摘要： A system for recovering cardiac motion includes an overall model, a geodesic-like prismoidal tessellation of the model and constant volume constraints. The overall model includes local deformations and a scaleable default model having a global component and parametric offsets. The offsets provide two features. First, they help to form an expected model shape which facilitates appropriate model data correspondences. Second, they scale with the global component to maintain the expected shape even in the presence of large global deformations. The system is applied to the recovery of 3-D cardiac motion from a volunteer dataset of tagged-MR images.

摘要翻译： 用于恢复心脏运动的系统包括整体模型，模型的测地线状的棱柱状镶嵌和恒定的体积约束。 整体模型包括局部变形和具有全局分量和参数偏移的可缩放默认模型。 偏移量提供两个特征。 首先，它们有助于形成预期的模型形状，有助于适当的模型数据对应。 第二，它们与全球组成部分相结合，即使存在大的全局变形也能保持预期的形状。 该系统应用于从标记MR图像的志愿者数据集中恢复3-D心脏运动。

公开(公告)号：US09830958B2

公开(公告)日：2017-11-28

申请号：US13463717

申请日：2012-05-03

申请人： Alok Gupta

发明人： Alok Gupta

IPC分类号： G06F12/02 ,  G11C7/10 ,  G11C7/22 ,  G11C11/4076

CPC分类号： G11C7/1042 ,  G11C7/1072 ,  G11C7/1075 ,  G11C7/22 ,  G11C11/4076

摘要： One embodiment sets forth a technique for time-multiplexed communication for transmitting command and address information between a controller and a multi-port memory device over a single connection. Command and address information for each port of the multi-port memory device is time-multiplexed within the controller to produce a single stream of commands and addresses for different memory requests. The single stream of commands and addresses is transmitted by the controller to the multi-port memory device where the single stream is demultiplexed to generate separate streams of commands and addresses for each port of the multi-port memory device.