公开(公告)号：US07965805B2

公开(公告)日：2011-06-21

申请号：US11859354

申请日：2007-09-21

申请人： Chong U. Lee ,  David Jonathan Julian ,  Amal Ekbal ,  Pavel Monat ,  Wei Xiong

发明人： Chong U. Lee ,  David Jonathan Julian ,  Amal Ekbal ,  Pavel Monat ,  Wei Xiong

IPC分类号： H04L7/00

CPC分类号： H03L7/00 ,  H03K7/06 ,  H03L7/06

摘要： Frequency and phase of an output signal is adjusted to track an input signal. A control signal is adjusted to control a frequency of an oscillating signal from which the output signal is derived. In some aspects the frequency of the oscillating signal is adjusted by reconfiguration of reactive circuits coupled to an oscillator circuit. Phase of the output signal may be adjusted based on comparison of the oscillating signal with an adjustable threshold. For example, the adjustable threshold may comprise an adjustable bias signal for a transistor circuit whereby the oscillating signal is provided as an input to the transistor circuit and the output of the transistor circuit provides the output signal.

摘要翻译： 调整输出信号的频率和相位以跟踪输入信号。 调整控制信号以控制从其导出输出信号的振荡信号的频率。 在一些方面，振荡信号的频率通过耦合到振荡器电路的无功电路的重新配置来调整。 可以基于振荡信号与可调阈值的比较来调整输出信号的相位。 例如，可调阈值可以包括用于晶体管电路的可调偏置信号，由此将振荡信号提供给晶体管电路的输入，并且晶体管电路的输出提供输出信号。

公开(公告)号：US07923942B1

公开(公告)日：2011-04-12

申请号：US12100288

申请日：2008-04-09

申请人： Wei Xiong ,  Thomas Lunn ,  Christopher Radzinski

发明人： Wei Xiong ,  Thomas Lunn ,  Christopher Radzinski

IPC分类号： H05B37/02

CPC分类号： H05B41/42 ,  Y10S315/04

摘要： A constant current source mirror tank dimmable ballast operates multiple high impedance lamps in a stable and balanced manner. The dimmable ballast has an inverter connected to two third-order resonant circuits. These third-order resonant circuits dominate the transfer function of the ballast circuits. Consequently, changes in the impedance of the lamp do not affect the current output to the lamps.

摘要翻译： 恒流源镜筒可调光镇流器以稳定和平衡的方式操作多个高阻抗灯。 调光镇流器具有连接到两个三阶谐振电路的反相器。 这些三阶谐振电路支配镇流器电路的传递函数。 因此，灯的阻抗的变化不影响到灯的电流输出。

公开(公告)号：US07843141B1

公开(公告)日：2010-11-30

申请号：US12017750

申请日：2008-01-22

申请人： Wei Xiong ,  Thomas Lunn ,  Christopher Radzinski

发明人： Wei Xiong ,  Thomas Lunn ,  Christopher Radzinski

IPC分类号： H05B37/00

CPC分类号： H05B41/42 ,  Y10S315/04

摘要： A step dimming interface is utilized to operate a load such as a gas discharge lamp. The dimming interface has first and second switches for determining when the gas discharge lamp operates at either a normal power level or a dimming power level. A rectifier circuit is connected to a control signal production circuit. By manipulating the first and second switches, the rectifier sends either a full-wave rectified signal or a half-wave rectified signal to the control signal production circuit which determines the output of the control signal production circuit. The control signal production circuit may be connected to an electronic ballast which varies the power level of the lamp according to this output.

摘要翻译： 利用阶梯调光接口来操作诸如气体放电灯的负载。 调光接口具有第一和第二开关，用于确定气体放电灯何时在正常功率水平或调光功率水平下工作。 整流电路连接到控制信号生成电路。 通过操纵第一和第二开关，整流器将全波整流信号或半波整流信号发送到确定控制信号产生电路的输出的控制信号产生电路。 控制信号生成电路可以连接到根据该输出改变灯的功率电平的电子镇流器。

公开(公告)号：US20100254596A1

公开(公告)日：2010-10-07

申请号：US12680478

申请日：2008-09-26

申请人： Wei Xiong ,  Qi Tian ,  Joo Hwee Lim

发明人： Wei Xiong ,  Qi Tian ,  Joo Hwee Lim

IPC分类号： G06K9/40

CPC分类号： G06T5/50 ,  G06T3/4053 ,  G06T7/571 ,  G06T2207/10016 ,  G06T2207/10056

摘要： A method and system for generating an entirely well-focused image of a three-dimensional scene. The method comprises the steps of a) learning a prediction model including at least a focal depth probability density function (PDF), h(k), for all depth values k, from historical tiles of the scene; b) predicting the possible focal surfaces in subsequent tiles of the scene by applying the prediction model; c) for each value of k, examining h(k) such that if h(k) is below a first threshold, no image is acquired at the depth k′ for said one tile; and if h(k) is above or equal to a first threshold, one or more images are acquired in a depth range around said value of k for said one tile; and d) processing the acquired images to generate a pixel focus map for said one tile.

摘要翻译： 一种用于产生三维场景的完全良好聚焦图像的方法和系统。 该方法包括以下步骤：a）从场景的历史瓦片学习至少包括所有深度值k的焦点深度概率密度函数（PDF），h（k）的预测模型; b）通过应用预测模型预测场景的后续瓦片中的可能焦点面; c）对于k的每个值，检查h（k），使得如果h（k）低于第一阈值，则在所述一个瓦片的深度k'处不获取图像; 并且如果h（k）高于或等于第一阈值，则在所述一个瓦片的k值周围的深度范围内获取一个或多个图像; 以及d）处理所获取的图像以生成所述一个瓦片的像素焦点图。

公开(公告)号：US07768755B1

公开(公告)日：2010-08-03

申请号：US11949938

申请日：2007-12-04

申请人： Wei Xiong ,  Danny Pugh ,  Christopher Radzinski

发明人： Wei Xiong ,  Danny Pugh ,  Christopher Radzinski

IPC分类号： H02H3/20

CPC分类号： H05B41/2985

摘要： The present invention is an overvoltage protection and automatic re-strike circuit for an electronic ballast. The electronic ballast has an inverter, a shut-down circuit, a safety circuit, a monitoring circuit, and an overvoltage protection circuit. The inverter provides an appropriate alternating current power supply to operate the lamp. The shut-down, safety, monitoring, and overvoltage protection circuits are coupled to the inverter and provide the overvoltage protection and automatic re-striking functions. During an overvoltage condition, the overvoltage protection circuit will temporarily disable the inverter. Subsequent to the overvoltage condition, the overvoltage protection circuit permits the inverter to attempt to re-ignite the lamp. After a predetermined number of unsuccessful re-ignition attempts, the safety circuit will permanently disable the inverter to avoid damage to the ballast.

摘要翻译： 本发明是用于电子镇流器的过压保护和自动重击电路。 电子镇流器具有逆变器，停机电路，安全电路，监控电路和过电压保护电路。 逆变器提供适当的交流电源来操作灯。 关断，安全，监控和过压保护电路耦合到变频器，并提供过压保护和自动重击功能。 在过电压状态下，过压保护电路将暂时禁用变频器。 在过压状态之后，过电压保护电路允许逆变器尝试重新点燃灯。 经过预定次数不成功的重启尝试后，安全电路将永久禁用变频器，以避免损坏镇流器。

公开(公告)号：US07519236B2

公开(公告)日：2009-04-14

申请号：US10411532

申请日：2003-04-09

申请人： Min Cheng ,  Wei Xiong ,  Lingxiang Zhou

发明人： Min Cheng ,  Wei Xiong ,  Lingxiang Zhou

IPC分类号： G06K9/62 ,  G06K9/60

CPC分类号： G06K9/42

摘要： A method for searching an image database includes capturing an image of a photograph and a background, determining a boundary of the photograph in the image, cropping the photograph from the image, correcting the perspective of the photograph, compensating colors of the photograph, and matching the photograph with an image in the image database.

摘要翻译： 一种用于搜索图像数据库的方法包括拍摄照片和背景的图像，确定图像中的照片的边界，从图像中裁剪照片，校正照片的透视图，补偿照片的颜色，以及匹配 在图像数据库中具有图像的照片。

公开(公告)号：US20090080568A1

公开(公告)日：2009-03-26

申请号：US11859335

申请日：2007-09-21

申请人： Chong U. Lee ,  David Jonathan Julian ,  Amal Ekbal ,  Pavel Monat ,  Wei Xiong

发明人： Chong U. Lee ,  David Jonathan Julian ,  Amal Ekbal ,  Pavel Monat ,  Wei Xiong

IPC分类号： H03K7/06

CPC分类号： H03K7/06 ,  H03B5/366 ,  H03B2200/005

摘要： Phase of an output signal is based on comparison of an oscillating signal with an adjustable threshold. Here, adjustment of the threshold results in a corresponding adjustment of the phase of the output signal. For example, the adjustable threshold may comprise an adjustable bias signal for a transistor circuit whereby the oscillating signal is provided as an input to the transistor circuit and the output of the transistor circuit provides the output signal. In some aspects these phase adjustment techniques may be employed to provide one or more tunable multiphase clocks.

摘要翻译： 输出信号的相位基于振荡信号与可调阈值的比较。 这里，阈值的调整导致输出信号的相位的相应调整。 例如，可调阈值可以包括用于晶体管电路的可调偏置信号，由此将振荡信号提供给晶体管电路的输入，并且晶体管电路的输出提供输出信号。 在一些方面，可以采用这些相位调整技术来提供一个或多个可调多相时钟。

公开(公告)号：US20080116941A1

公开(公告)日：2008-05-22

申请号：US11560780

申请日：2006-11-16

申请人： Amal Ekbal ,  Chong U. Lee ,  David Jonathan Julian ,  Wei Xiong

发明人： Amal Ekbal ,  Chong U. Lee ,  David Jonathan Julian ,  Wei Xiong

IPC分类号： G01R19/00 ,  H03M1/00 ,  H04N11/02

CPC分类号： H04B1/7183

摘要： A matched filter and peak detector identify peaks of a received signal. The peak detector may detect peaks during a fixed or adjustable time window. The peaks may be used as a preliminary decision (e.g., soft decision) for subsequent receiver decoding operations. The detector may be used to detect high bandwidth signals such as ultra-wide band signal pulses yet consume relatively minimal power.

摘要翻译： 匹配滤波器和峰值检测器识别接收信号的峰值。 峰值检测器可以在固定或可调整的时间窗口期间检测峰值。 峰可以用作随后的接收机解码操作的初步判定（例如，软判决）。 检测器可用于检测高带宽信号，例如超宽带信号脉冲，但消耗相对较小的功率。

公开(公告)号：US20060232935A1

公开(公告)日：2006-10-19

申请号：US11105627

申请日：2005-04-14

申请人： Wei Xiong

发明人： Wei Xiong

IPC分类号： H05K7/20

CPC分类号： G06F1/203 ,  G06F1/1616 ,  G06F2200/1633

摘要： A self contained laptop computer cooling pad that does not require any electrical power to operate and will effectively and efficiently reduce the operating temperature of the computer and reduce the heat being transferred into the user's lap. The cooling pad contains a phase-changing compound such as sodium sulfate decahydrate, sodium carbonate decahydrate, disodium phosphate dodecahydrate or sodium thiosulfate pentahydrate, and may be made of a soft, flexible material that will contain the phase-changing compound and prevent excess shifting within the cooling pad. The cooling pad is placed under the laptop computer when operating the computer to effectively transfer heat away from the computer by conduction and prevent passage onto the user. The cooling pad may be in the form of a sleeve to additionally provide padded storage for the computer when not in use.

摘要翻译： 一个独立的笔记本电脑冷却垫，不需要任何电力来操作，并且将有效和有效地降低计算机的工作温度，并减少被传送到用户的膝盖的热量。 冷却垫含有十一水硫酸钠，十水合碳酸钠，十二水合磷酸二钠或十水硫酸钠五水合物等相变化合物，可以由含有相变化合物的柔软柔软的材料制成，并防止在 冷却垫。 当操作计算机时，将冷却垫放置在膝上型计算机下方，以通过传导有效地将热量从计算机传出，并防止通过用户。 冷却垫可以是套筒的形式，以在不使用时另外为计算机提供填充的存储。

公开(公告)号：US20060048191A1

公开(公告)日：2006-03-02

申请号：US10931612

申请日：2004-08-31

申请人： Wei Xiong

发明人： Wei Xiong

IPC分类号： H04N5/445 ,  G06F3/00 ,  H04N7/12 ,  G06F13/00 ,  H04B1/66 ,  H04N11/04 ,  H04N11/02

CPC分类号： G11B27/28 ,  G06F17/30799 ,  G06F17/30802 ,  G06F17/30825 ,  G06K9/00711 ,  G06K9/6857

摘要： The present embodiments provide methods and apparatuses for use in searching and/or retrieving video data. Some embodiments provide method for use in searching video data, that extract a spatiotemporal representation of at least a portion of a query sequence of video data, produce a query slice image from the spatiotemporal representation of the at least the portion of the query sequence, extract a spatiotemporal representation of at least a portion of candidate video data, produce a candidate slice image from the spatiotemporal representation of the at least the portion of the candidate video data, and determine when the query slice image matches at least a portion of the candidate slice image. In some embodiments, an apparatus is provided for use with video data. The apparatus comprises a memory storing candidate video data and a query sequence, a slice generator and a two-dimensional image generator.

摘要翻译： 本实施例提供了用于搜索和/或检索视频数据的方法和装置。 一些实施例提供了用于搜索视频数据的方法，其提取视频数据的查询序列的至少一部分的时空表示，从查询序列的至少部分的时空表示中提取查询片图像，提取 候选视频数据的至少一部分的时空表示从候选视频数据的至少部分的时空表示中产生候选切片图像，并且确定查询切片图像何时与候选切片的至少一部分匹配 图片。 在一些实施例中，提供了一种与视频数据一起使用的装置。 该装置包括存储候选视频数据和查询序列的存储器，片生成器和二维图像生成器。