公开(公告)号：WO2011091241A1

公开(公告)日：2011-07-28

申请号：PCT/US2011/022044

申请日：2011-01-21

Applicant: QUALCOMM Incorporated ,  LEE, Chong U. ,  RAVEENDRAN, Vijayalakshmi R.

Inventor： LEE, Chong U. ,  RAVEENDRAN, Vijayalakshmi R.

IPC: H04L1/00 ,  H04W12/06

CPC classification number: H04L1/0001 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0041 ,  H04L1/0071 ,  H04N21/64723 ,  H04N21/64761

Abstract: This disclosure relates to techniques for processing feedback associated with data previously transmitted by a communication device. One example communication system comprises one or more processors (32), a channel identifier (44), a transmitter (42), and a data receiver/feedback unit (46). The channel identifier (44) is operable to identify at least one channel currently available in a digital broadcast spectrum. The transmitter (42) is operable to transmit data via the at least one identified channel of the digital broadcast spectrum, wherein the transmitted data complies with a digital broadcast format. The data receiver/feedback unit (46) is operable to receive a representation of the data and compare at least a portion of the received representation of the data to at least a portion of the transmitted data. The one or more processors (32) are configured to determine whether to adjust a broadcast transmission parameter or a data transformation parameter for use in subsequent data communication based upon the comparison.

Abstract translation: 本公开涉及用于处理与先前由通信设备发送的数据相关联的反馈的技术。 一个示例性通信系统包括一个或多个处理器（32），信道标识符（44），发射机（42）和数据接收机/反馈单元（46）。 信道标识符（44）可操作以识别当前在数字广播频谱中可用的至少一个信道。 发射机（42）可操作以经由至少一个所识别的数字广播频谱的频道来发送数据，其中发送的数据符合数字广播格式。 数据接收器/反馈单元（46）可操作以接收数据的表示，并将所接收的数据表示的至少一部分与发送数据的至少一部分进行比较。 一个或多个处理器（32）被配置为基于比较来确定是否调整广播传输参数或数据变换参数以用于后续数据通信。

公开(公告)号：WO2011085277A1

公开(公告)日：2011-07-14

申请号：PCT/US2011/020613

申请日：2011-01-08

Applicant: QUALCOMM INCORPORATED ,  VADDADI, Sundeep ,  HONG, John H. ,  HAMSICI, Onur C. ,  LEE, Chong U.

Inventor： VADDADI, Sundeep ,  HONG, John H. ,  HAMSICI, Onur C. ,  LEE, Chong U.

IPC: G06K9/46

CPC classification number: G06K9/4671

Abstract: A normalization process is implemented at a difference of scale space to completely or substantially reduce the effect that illumination changes has on feature/keypoint detection in an image. An image may be processed by progressively blurring the image using a smoothening function to generate a smoothened scale space for the image. A difference of scale space may be generated by taking the difference between two different smoothened versions of the image. A normalized difference of scale space image may be generated by dividing the difference of scale space image by a third smoothened version of the image, where the third smoothened version of the image that is as smooth or smoother than the smoothest of the two different smoothened versions of the image. The normalized difference of scale space image may then be used to detect one or more features/keypoints for the image.

Abstract translation: 在尺度空间的差异上实现归一化过程以完全或基本上减少照明变化对图像中的特征/关键点检测的影响。 可以通过使用平滑函数逐渐模糊图像来生成图像来生成图像，以生成平滑的图像尺度空间。 可以通过获取图像的两个不同平滑版本之间的差异来产生比例空间的差异。 尺度空间图像的归一化差异可以通过将尺度空间图像的差除以图像的第三平滑版本而生成，其中图像的第三平滑版本比两个不同平滑版本中最平滑的平滑或平滑 的图像。 尺度空间图像的归一化差异可以用于检测图像的一个或多个特征/关键点。

公开(公告)号：WO2011069021A2

公开(公告)日：2011-06-09

申请号：PCT/US2010/058805

申请日：2010-12-02

Applicant: QUALCOMM Incorporated ,  VADDADI, Sundeep ,  HONG, John H. ,  HAMSICI, Onur C. ,  REZNIK, Yuriy ,  LEE, Chong U.

Inventor： VADDADI, Sundeep ,  HONG, John H. ,  HAMSICI, Onur C. ,  REZNIK, Yuriy ,  LEE, Chong U.

IPC: G06K9/64

CPC classification number: G06K9/6211

Abstract: A method for feature matching in image recognition is provided. First, image scaling may be based on a feature distribution across scale spaces for an image to estimate image size/resolution, where peak(s) in the keypoint distribution at different scales is used to track a dominant image scale and roughly track object sizes. Second, instead of using all detected features in an image for feature matching, keypoints may be pruned based on cluster density and/or the scale level in which the keypoints are detected. Keypoints falling within high-density clusters may be preferred over features falling within lower density clusters for purposes of feature matching. Third, inlier-to-outlier keypoint ratios are increased by spatially constraining keypoints into clusters in order to reduce or avoid geometric consistency checking for the image.

Abstract translation: 提供了一种图像识别中的特征匹配方法。 首先，图像缩放可以基于用于图像的尺度空间上的特征分布来估计图像尺寸/分辨率，其中使用不同尺度的关键点分布中的峰值来跟踪主要图像尺度并粗略地跟踪对象尺寸。 第二，不是使用图像中的所有检测到的特征来进行特征匹配，而是可以基于簇密度和/或检测关键点的比例级别来修剪关键点。 落入高密度簇内的关键点可能优于落入低密度簇内的特征，用于特征匹配。 第三，通过空间约束关键点进入群集来增加从早到晚的关键点比例，以便减少或避免图像的几何一致性检查。

公开(公告)号：WO2007149993A2

公开(公告)日：2007-12-27

申请号：PCT/US2007/071808

申请日：2007-06-21

Applicant: QUALCOMM Incorporated ,  LEE, Chong U. ,  HOLCMAN, Alejandro R. ,  STEIN, Jeremy M. ,  REZAIIFAR, Ramin ,  ARYAN, Babak

Inventor： LEE, Chong U. ,  HOLCMAN, Alejandro R. ,  STEIN, Jeremy M. ,  REZAIIFAR, Ramin ,  ARYAN, Babak

CPC classification number: H04W56/0015 ,  H04B7/24 ,  H04J3/06 ,  H04W52/028 ,  Y02D70/1222 ,  Y02D70/164 ,  Y02D70/448

Abstract: Operating at least one low duty cycle (LDC) controller to maintain synchronization between the LDC controller and a plurality of LDC terminals operating over a communication network using only overhead channels of the network and conforming to the protocol and timing of said network, wherein synchronization between the LDC controller and the plurality of LDC terminals is maintained separately from the protocol and timing of the communication network, and enables the LDC controller to schedule power down and wake up of the plurality of LDC terminals for durations longer than allowable under the protocol and timing of the communication network.

Abstract translation: 操作至少一个低占空比（LDC）控制器，以维持LDC控制器与通过网络运行的多个LDC终端之间的同步，仅使用网络的开销信道并符合所述网络的协议和定时，其中， LDC控制器和多个LDC终端与通信网络的协议和定时分开地保持，并且使LDC控制器能够调度多个LDC终端的停电和唤醒持续时间长于协议和定时下允许的持续时间 的通信网络。

公开(公告)号：WO2007121334A2

公开(公告)日：2007-10-25

申请号：PCT/US2007/066588

申请日：2007-04-13

Applicant: QUALCOMM Incorporated ,  MOALLEMI, Kamran ,  EKBAL, Amal ,  LEE, Chong U. ,  JULIAN, David Jonathan ,  XIAO, Lu ,  ROSE, Gregory Gordon

Inventor： MOALLEMI, Kamran ,  EKBAL, Amal ,  LEE, Chong U. ,  JULIAN, David Jonathan ,  XIAO, Lu ,  ROSE, Gregory Gordon

IPC: H04L29/08

CPC classification number: H04L63/0492 ,  H04L63/08 ,  H04L67/18 ,  H04W4/02 ,  H04W4/023 ,  H04W12/06

Abstract: Various operations may be performed based on distance-related functions associated with two or more devices. For example, one or more distance-based functions may be used to control whether a device is allowed to request another device to perform one or more functions. Similarly, one or more distance-based functions may be used to control whether a device may perform one or more functions requested by another device. A distance-related function may take various form including, for example, a distance between devices, two or more distances between devices, a rate of change in a relative distance between devices, relative acceleration between devices, or some combination of two or more of the these distance-related functions.

Abstract translation: 可以基于与两个或更多个设备相关联的距离相关功能来执行各种操作。 例如，可以使用一个或多个基于距离的功能来控制是否允许设备请求另一设备执行一个或多个功能。 类似地，可以使用一个或多个基于距离的功能来控制设备是否可以执行由另一设备请求的一个或多个功能。 距离相关功能可以采取各种形式，包括例如设备之间的距离，设备之间的两个或更多个距离，设备之间的相对距离的变化率，设备之间的相对加速度，或两个或更多个 这些距离相关的功能。

公开(公告)号：EP2545502B1

公开(公告)日：2016-11-16

申请号：EP11710950.4

申请日：2011-03-11

Applicant: Qualcomm Incorporated

Inventor： HONG, John H. ,  HAMSICI, Onur C. ,  DOS SANTOS, José R. ,  HUANG, Joseph ,  LEE, Chong U. ,  REZNIK, Yuriy ,  MURPHY, Mark K. ,  YAMAKAWA, Devender A.

IPC: G06K9/46

CPC classification number: G06K9/4671

公开(公告)号：EP2802842A1

公开(公告)日：2014-11-19

申请号：EP13702515.1

申请日：2013-01-07

Applicant: Qualcomm Incorporated

Inventor： VADDADI, Sundeep ,  HONG, John H. ,  LEE, Chong U.

IPC: G01C15/00 ,  G01S17/46

CPC classification number: G01B21/02 ,  G01B11/00 ,  G01B11/02 ,  G01B11/026 ,  G01B11/028 ,  G01B21/22 ,  G01C15/002 ,  G01S7/4004 ,  G01S7/52004 ,  G01S13/08 ,  G01S15/08 ,  G06F17/00

Abstract: In some embodiments, methods and systems are provided for assisting a user in determining a real-world distance. Hardware-based sensors (e.g., present in a mobile electronic device) may allow for a fast low-power determination of distances. In one embodiment, one or more telemetry-related sensors may be incorporated into a device. For example, data detected by a frequently-calibrated integrated accelerometer may be used to determine a tilt of the device. A device height may be estimated based on empirical data or based on a time difference between a signal (e.g., a sonar signal) emitted towards the ground and a corresponding detected signal. A triangulation technique may use the estimated tilt and height to estimate other real-world distances (e.g., from the device to an endpoint or between endpoints).

公开(公告)号：EP2780278A1

公开(公告)日：2014-09-24

申请号：EP12798930.9

申请日：2012-11-09

Applicant: Qualcomm Incorporated

Inventor： CHANG, Tallis Y. ,  PAN, Yaoling ,  HONG, John H. ,  LEE, Chong U.

IPC: B81C1/00

CPC classification number: B81C1/00293 ,  B81C2203/0145

Abstract: A plurality of MEMS devices are formed on a substrate, a sacrificial layer is formed to cover each of the MEMS devices and a protective cap layer is formed on the sacrificial layer. A release hole is formed through the protective cap layer to the underlying sacrificial layer, and a releasing agent is introduced through the release hole to re¬ move the sacrificial layer under the protective cap layer and expose a MEMS device. The release hole is solder sealed, to form a hermet¬ ic seal of the MEMS device. The method for hermetically sealing the release hole comprises forming a wetting surface on a region adja¬ cent the opening and immersing the wetting surface into a viscous solder to draw a portion of the solder to cover and hermetically seal the opening.

公开(公告)号：EP2277292B1

公开(公告)日：2013-11-06

申请号：EP08745544.0

申请日：2008-04-10

Applicant: QUALCOMM Incorporated

Inventor： LEE, Chong U. ,  EKBAL, Amal ,  JULIAN, David Jonathan ,  SHI, Jun ,  LERSTAVEESIN, Supisa

IPC: H04B1/7163 ,  H04B14/02 ,  H04L25/49

CPC classification number: H04L25/4902 ,  H04B1/71637 ,  H04B14/026

公开(公告)号：EP2647129A1

公开(公告)日：2013-10-09

申请号：EP11794323.3

申请日：2011-11-28

Applicant: Qualcomm Incorporated

Inventor： LEE, Chong U. ,  REZNIK, Yuriy ,  HONG, John H.

IPC: H03M3/02 ,  G10L19/04

CPC classification number: H03M3/492 ,  H03M3/422 ,  H03M3/456

Abstract: In general, techniques are described for performing enhanced sigma-delta modulation. For example, an apparatus comprising a predictive filter unit, an amplifier, an oversampling unit and a sigma-delta modulation unit may implement the techniques. The predictive filter unit performs predictive filtering on an input signal to generate a filtered signal and computes an estimate of a predictive gain as a function of an energy of the input signal and an energy of the filtered signal. The amplifier receives the filtered signal and amplifies the filtered signal based on the predictive gain to generate an amplified signal. The oversampling unit receives the amplifies signal and performs oversampling in accordance with an oversampling rate to generate an oversampled signal. The sigma-delta modulation unit receives the oversampled signal and performs sigma-delta modulation to generate a modulated signal.