公开(公告)号：US07116880B1

公开(公告)日：2006-10-03

申请号：US11170869

申请日：2005-06-30

申请人： Xueyuan Liu ,  Yao Rong Wang ,  Kristine A. German ,  Peter M. Gulvin

发明人： Xueyuan Liu ,  Yao Rong Wang ,  Kristine A. German ,  Peter M. Gulvin

IPC分类号： G02B6/10

CPC分类号： G02B6/2813 ,  G02B6/122

摘要： First and second ridge type photonic waveguides are provided. Each of the waveguides includes a core layer and a reflective cladding layer in continuous contact with a first side of a core layer. The core layer has a core index of the refraction and is formed in a ridge in a dimension and shape to impose lateral confinement. The reflective cladding layer has an index of refraction that is substantially different than the core index of refraction. An inter-waveguide slab portion is provided between the first and second waveguides. A substrate supports the first and second waveguides, the slab portion, and the reflective cladding layer. A light interceptor region is provided to hinder a transfer of photons between the first and second waveguides through the inter-waveguides slab portion. The light interceptor region may include a trench region, which is an air gap in one embodiment.

摘要翻译： 提供第一和第二脊型光子波导。 每个波导包括与芯层的第一侧连续接触的芯层和反射包层。 芯层具有折射率的芯指数，并且形成为具有尺寸和形状的脊，以施加横向约束。 反射包层具有与芯折射率基本上不同的折射率。 在第一和第二波导之间设置有波导管间的部分。 基板支撑第一和第二波导，平板部分和反射包层。 提供光拦截器区域以阻止通过所述波导板间部分在第一和第二波导之间的光子的转移。 光拦截区域可以包括沟槽区域，其在一个实施例中是气隙。

公开(公告)号：US06185385B2

公开(公告)日：2001-02-06

申请号：US09083142

申请日：1998-05-22

申请人： Lingappa K. Mestha ,  Yao Rong Wang ,  John Buranicz ,  Meera Sampath ,  Mark A. Scheuer

发明人： Lingappa K. Mestha ,  Yao Rong Wang ,  John Buranicz ,  Meera Sampath ,  Mark A. Scheuer

IPC分类号： G03G1500

CPC分类号： G03G15/5041 ,  G03G2215/00042 ,  G03G2215/00054 ,  G03G2215/0174

摘要： An online printing parameter establishment apparatus is used with a xerographic printing device for printing high quality prints given a target value. The xerographic printing device is capable of producing at least one print control patch on a photoreceptor and is capable of sensing a value of the at least one print control patch. The xerographic printing device has a plurality of sets of inherent performance characteristic values. The online printing parameter establishment apparatus includes a controller device and a switch device. The controller device is operative to produce a first database of different ones of the sensed values. Each sensed value is associated with a respective one of the plurality of sets of inherent performance characteristic values based upon the target value. The controller device is also operative to produce a second database of a plurality of control values. Each one of the control values is extracted from a respective one of the sensed values and the associated set of inherent performance characteristic values. Further, the controller device selects one of the control values which is closely comparable to the target value. A method for online establishment of print control parameters to render high quality prints using a xerographic printing process is also described.

摘要翻译： 在线打印参数建立装置与静电印刷装置一起使用，用于打印给定目标值的高质量打印。 静电印刷装置能够在感光体上产生至少一个打印控制贴片并且能够感测至少一个打印控制贴片的值。 静电印刷装置具有多组固有的性能特征值。 在线打印参数设置装置包括控制器设备和开关设备。 控制器装置可操作以产生不同感测值的第一数据库。 基于目标值，每个感测值与多组固有性能特征值中的相应一个相关联。 控制器设备还可操作以产生多个控制值的第二数据库。 控制值中的每一个都从相应的一个感测值和相关的固有性能特征值集合中提取出来。 此外，控制器设备选择与目标值非常相似的一个控制值。 还描述了用于在线建立打印控制参数以使用静电印刷处理来呈现高质量打印的方法。

公开(公告)号：US5749020A

公开(公告)日：1998-05-05

申请号：US754571

申请日：1996-11-21

申请人： Lingappa K. Mestha ,  Yao Rong Wang ,  Sohail A. Dianat ,  Pramod P. Khargonekar ,  Daniel E. Koditschek ,  Eric Jackson ,  Tracy E. Thieret

发明人： Lingappa K. Mestha ,  Yao Rong Wang ,  Sohail A. Dianat ,  Pramod P. Khargonekar ,  Daniel E. Koditschek ,  Eric Jackson ,  Tracy E. Thieret

IPC分类号： B41J2/52 ,  G03G15/00 ,  G06T1/00 ,  G06T5/00 ,  G02G15/00

CPC分类号： G03G15/5041 ,  G03G2215/00042

摘要： Fundamental machine functions such as the Tone Reproduction Curve need to be divided into regions of smaller units so that each unit can be interrelated to some aspects of the internal machine process. A first step toward that is by decomposing measured TRC in terms of what are known as "orthogonal basis functions". Two significant applications for orthogonal basis functions may be extensive use in color controls to maintain color consistency for every page, every time and all the time. The use of basis functions might also lead to a new soft sensor for use in certain machines.

摘要翻译： 基本机器功能，如音调再现曲线需要分为较小单位的区域，以便每个单元可以与内部机器过程的某些方面相互关联。 第一步是通过将所谓的“正交基函数”分解为测量的TRC。 正交基函数的两个重要应用可能在颜色控制中广泛使用，以保持每一页，每一次和所有时间的颜色一致性。 基础功能的使用也可能导致用于某些机器的新型软传感器。

公开(公告)号：US20130321142A1

公开(公告)日：2013-12-05

申请号：US13488549

申请日：2012-06-05

申请人： George Cunha Cardoso ,  Graham Pennington ,  Yao Rong Wang

发明人： George Cunha Cardoso ,  Graham Pennington ,  Yao Rong Wang

IPC分类号： B60Q11/00 ,  B60Q1/00 ,  G06K9/00

CPC分类号： G06K9/00785 ,  B60Q1/50 ,  B60Q2300/41 ,  B60Q2300/42 ,  G01M17/007 ,  G06K9/00825

摘要： A video-based vehicle headlight state monitoring method and system. A vehicle image can be captured by an image-capturing unit and converted to a grayscale image. The grayscale image can be processed to locate a front license plate and identify a position of a headlight region in front of the vehicle utilizing an algorithm. An average digital count with respect to brightness of the headlight region can be compared with average digital count with respect to brightness of several parts of the vehicle and a background region to determine the vehicle headlights ON/OFF status. The headlights can be considered ON if the digital count level of the headlight region is higher than the digital count of the several parts of the vehicle and the background region. A warning signal can be initiated to turn the headlights on during a special situation utilizing a signal generator.

摘要翻译： 一种视频车载前灯状态监测方法及系统。 车辆图像可以由图像捕获单元捕获并转换成灰度图像。 可以处理灰度图像以定位前车牌，并使用算法识别车前面的前灯区域的位置。 相对于前灯区域的亮度的平均数字计数可以与车辆的几个部分的亮度和背景区域的平均数字计数进行比较，以确定车辆前灯的ON / OFF状态。 如果前灯区域的数字计数水平高于车辆的几个部分和背景区域的数字计数，则前灯可以被认为是ON。 可以在使用信号发生器的特殊情况下启动警告信号来打开前灯。

公开(公告)号：US20130266188A1

公开(公告)日：2013-10-10

申请号：US13461266

申请日：2012-05-01

申请人： Orhan Bulan ,  Edgar A. Bernal ,  Robert P. Loce ,  Yao Rong Wang ,  Zhigang Fan

发明人： Orhan Bulan ,  Edgar A. Bernal ,  Robert P. Loce ,  Yao Rong Wang ,  Zhigang Fan

IPC分类号： G06K9/62

CPC分类号： G06K9/00771

摘要： A method and a system for determining a parking boundary violation includes receiving video data from a sequence of frames taken from an image capture device monitoring a parking area including at least a single parking space. A boundary is determined for defining at least one parking space in the parking area. A vehicle is detected in the parking area. A determination is made whether the detected vehicle is violating a parking regulation based on a position and size of the vehicle within the boundary.

摘要翻译： 用于确定停车边界违规的方法和系统包括从监视包括至少一个停车位的停车区域的图像捕获设备接收的帧序列中接收视频数据。 确定用于在停车区域中定义至少一个停车位的边界。 在停车区域内检测到车辆。 基于边界内的车辆的位置和大小来确定检测到的车辆是否违反停车规则。

公开(公告)号：US20130265423A1

公开(公告)日：2013-10-10

申请号：US13441294

申请日：2012-04-06

申请人： Edgar A. Bernal ,  Zhigang Fan ,  Yao Rong Wang ,  Robert P. Loce ,  Norman W. Zeck ,  Graham S. Pennington

发明人： Edgar A. Bernal ,  Zhigang Fan ,  Yao Rong Wang ,  Robert P. Loce ,  Norman W. Zeck ,  Graham S. Pennington

IPC分类号： H04N7/18 ,  G08B21/18

CPC分类号： G06Q30/0284 ,  G06K9/00785 ,  G07B15/02 ,  H04N7/181

摘要： A method for determining the occurrence of a short-term parking violation includes receiving video data in a sequence of frames provided by an image capture device monitoring a parking area over a duration of time. The method includes determining the presence of a vehicle captured in at least one of the sequence of frames. The method tracks the location of the vehicle across the sequence of frames. The method further determines a spatial location of the vehicle in each frame. The method includes determining spatio-temporal information describing the location of the vehicle as a function of time by associating the spatial location of the vehicle at each frame with the time instant at which the frame was captured. In response to the spatio-temporal information indicating that the vehicle becomes stationary, the method determines a duration that the vehicle is stationary using the determined spatio-temporal information of the vehicle.

摘要翻译： 用于确定短期停车违规发生的方法包括：在由持续时间监视停车区域的图像捕获装置提供的帧序列中接收视频数据。 该方法包括确定在帧序列中的至少一个中捕获的车辆的存在。 该方法跟踪车辆在整个帧序列上的位置。 该方法进一步确定车辆在每一帧中的空间位置。 该方法包括通过将每个帧处的车辆的空间位置与捕获帧的时刻相关联来确定描述车辆位置的时空信息作为时间的函数。 响应于指示车辆变得静止的时空信息，该方法使用所确定的车辆的时空信息来确定车辆静止的持续时间。

公开(公告)号：US07734131B2

公开(公告)日：2010-06-08

申请号：US11405774

申请日：2006-04-18

申请人： Pinyen Lin ,  Peter M. Gulvin ,  Yao Rong Wang ,  Lalit K Mestha

发明人： Pinyen Lin ,  Peter M. Gulvin ,  Yao Rong Wang ,  Lalit K Mestha

IPC分类号： G02B6/42

CPC分类号： G01J3/26 ,  G02B6/29358 ,  G02B6/29395 ,  G02B26/001

摘要： A tunable Fabry-Perot filter (8, 118, 218, 318, 418) includes substrates (10, 12) with parallel generally planar facing principal surfaces (14, 16) including spaced apart facing reflective surface regions (20, 22) that are at least partially reflective over a wavelength range and define an optical gap (Gopt) therebetween. At least one substrate of the pair of substrates is light transmissive over the selected wavelength range to enable optical coupling with the optical gap. Electrodes (24, 26) are disposed on the facing principal surfaces of the substrates. The electrodes on the facing principal surfaces of the substrates are define an electrode gap therebetween such that electrical biasing of the electrodes simultaneously modifies the optical and electrode gaps.

摘要翻译： 可调谐的法布里 - 珀罗滤光器（8,118,218,318,418）包括具有平行大致平面的主要表面（14,16）的衬底（10,12），该主表面包括间隔开的面对的反射表面区域（20,22） 在波长范围内至少部分反射并且在其间限定光学间隙（Gopt）。 一对基板中的至少一个基板在所选择的波长范围内是透光的，以使得能够与光学间隙进行光耦合。 电极（24,26）设置在基板的相对的主表面上。 衬底的相对主表面上的电极在其间限定电极间隙，使得电极的电偏置同时改变光学和电极间隙。

公开(公告)号：US07583418B2

公开(公告)日：2009-09-01

申请号：US11535400

申请日：2006-09-26

申请人： Lalit K. Mestha ,  Peter M. Gulvin ,  Pinyen Lin ,  Yao Rong Wang

发明人： Lalit K. Mestha ,  Peter M. Gulvin ,  Pinyen Lin ,  Yao Rong Wang

IPC分类号： H04N1/46 ,  G06K15/00 ,  G01D18/00 ,  G06K9/00

CPC分类号： H04N1/46 ,  G01J1/4223 ,  G01J3/02 ,  G01J3/0256 ,  G01J3/0264 ,  G01J3/0291 ,  G01J3/26 ,  G01J3/2803 ,  G01J3/36 ,  G01J3/50 ,  G01J3/51 ,  G01J3/513 ,  G01J3/52 ,  G01J3/524 ,  H04N1/6033

摘要： A Micro-Electro-Mechanical System (MEMS) based Fabry-Perot array may be used as a spectral filter to light sensing array, such as a CCD or CMOS photodetector. Applying different voltages to the electrodes of individual Fabry-Perot cells within the array allows a gradient in the Fabry-Perot air gap across the Fabry-Perot array. In this manner the MEMS Fabry-Perot array serves as a spectral filter of light passing through the Fabry-Perot array to the photodetector array. Embodiments of the disclosed sensor, used with LEDs that emit light outside the photosensitivity range of a photoreceptor belt, may be used to measure spectral information from toned patches and/or images placed upon a photoreceptor belt within a marking system. Other embodiments of the disclosed senor, used with LEDs that emit light of any wavelength, may be used to measure spectral information from toned patches or images placed by a marking system upon a non-photosensitive output substrate, such as an intermediate belt or paper.

摘要翻译： 基于微机电系统（MEMS）的法布里 - 珀罗阵列可用作光传感阵列的光谱滤波器，例如CCD或CMOS光电探测器。 对阵列中的单个法布里 - 珀罗细胞的电极施加不同的电压允许跨法布里 - 珀罗阵列的法布里 - 珀罗气隙的梯度。 以这种方式，MEMS法布里 - 珀罗阵列用作通过法布里 - 珀罗阵列到光电检测器阵列的光的光谱滤波器。 所公开的传感器与在感光带的光敏度范围外发出光的LED一起使用的实施例可用于测量放置在标记系统内的感光带上的调色片和/或图像的光谱信息。 用于发射任何波长的光的LED的所公开的传感器的其它实施例可用于测量由标记系统放置在非感光输出基板（例如中间带或纸）上的调色片或图像的光谱信息。

公开(公告)号：US06987920B1

公开(公告)日：2006-01-17

申请号：US10878834

申请日：2004-06-28

申请人： Kristine A. German ,  Peter M. Gulvin ,  Joel A. Kubby ,  Pinyen Lin ,  Xueyuan Liu ,  Yao Rong Wang

发明人： Kristine A. German ,  Peter M. Gulvin ,  Joel A. Kubby ,  Pinyen Lin ,  Xueyuan Liu ,  Yao Rong Wang

IPC分类号： G02B6/10

CPC分类号： G02B6/122 ,  G02B6/105

摘要： A waveguide structure has a base having a base height (h) above a substrate and a rectangular waveguide having a waveguide height (H) above the substrate and a waveguide width (W) between opposing sides of the waveguide.

摘要翻译： 波导结构具有在基板上方具有基底高度（h）的基部和在基板上方具有波导高度（H）的矩形波导和波导的相对侧之间的波导宽度（W）。

公开(公告)号：US06980727B1

公开(公告)日：2005-12-27

申请号：US11010768

申请日：2004-12-13

申请人： Pinyen Lin ,  Yao Rong Wang ,  Jun Ma

发明人： Pinyen Lin ,  Yao Rong Wang ,  Jun Ma

IPC分类号： G02B6/26 ,  G02B6/35

CPC分类号： G02B6/266

摘要： An improved cantilever beam optical switch methodology which provides the function of a variable optical attenuator (VOA). A small degree of intentional misalignment of the waveguide will create different levels of optical attenuation. By finely controlling the misalignment of a selected switched position, a single device may be realized that will provide the functions of both switching and attenuating or just attenuation alone. The optical MEMS device utilizes a latching mechanism in association with a thermal drive actuator for aligning a cantilever beam platform. The integration of the switching function and the VOA function reduce the optical loss which is otherwise unavoidable when the inevitable alterative of a separate switch and a separate VOA must necessarily be employed. The resultant improved device can also be applied for correcting the difference in optical intensity created by the manufacturing tolerances inherent in the fabrication of array waveguide gratings.

摘要翻译： 提供可变光衰减器（VOA）功能的改进的悬臂光束光开关方法。 波导的有意的不对准会导致不同程度的光衰减。 通过精细地控制所选择的切换位置的未对准，可以实现单个设备，其将提供单独切换和衰减或仅仅衰减的功能。 光学MEMS器件利用与用于对准悬臂梁平台的热驱动致动器相关联的闩锁机构。 开关功能和VOA功能的集成减少了当必须采用单独的开关和单独的VOA的不可避免的替代时否则不可避免的光损耗。 所得到的改进的器件还可以用于校正由阵列波导光栅的制造中固有的制造公差产生的光强差。