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    System and method for computing color correction coefficients
    12.
    发明申请
    System and method for computing color correction coefficients 有权
    用于计算颜色校正系数的系统和方法

    公开(公告)号：US20080100639A1

    公开(公告)日：2008-05-01

    申请号：US11588921

    申请日：2006-10-27

    Applicant: Gregory S. Pettitt ,  Rajeev Ramanath

    Inventor： Gregory S. Pettitt ,  Rajeev Ramanath

    IPC: G09G5/02

    CPC classification number: G09G5/06 ,  G01J3/027 ,  G01J3/46 ,  G01J3/462 ,  G01J3/50 ,  G01J3/506 ,  G01J3/524 ,  G09G3/001 ,  G09G2320/0242

    Abstract: System and method for computing coefficients for color correcting rendered colors used in displaying images. A preferred embodiment comprises measuring color values of light output for a display system, receiving color values of desired colors, and computing a color correction matrix based on the measured color values and the input color values. The color correction matrix may be used to modify color commands to a light engine of the display system. The modifications to the color commands permit the storage and use of a set of color commands designed for a reference display system, simplifying display system design and manufacture.

    Abstract translation: 用于计算用于显示图像的颜色校正渲染颜色的系数的系统和方法。 优选实施例包括测量显示系统的光输出的颜色值，接收所需颜色的颜色值，以及基于测量的颜色值和输入颜色值来计算颜色校正矩阵。 颜色校正矩阵可以用于将颜色命令修改到显示系统的光引擎。 对颜色命令的修改允许存储和使用为参考显示系统设计的一组颜色命令，从而简化显示系统设计和制造。

    System and method to generate multiprimary signals
    13.
    发明申请
    System and method to generate multiprimary signals 有权
    用于生成多原色信号的系统和方法

    公开(公告)号：US20070242289A1

    公开(公告)日：2007-10-18

    申请号：US11403493

    申请日：2006-04-13

    Applicant: Rajeev Ramanath

    Inventor： Rajeev Ramanath

    IPC: G03F3/08

    CPC classification number: H04N9/67

    Abstract: System and method for generating multiprimary signals for use in display devices. A preferred embodiment comprises converting a color signal into an intermediate color space representation of the color signal, converting one of a plurality of multiprimary signals that is a representation of the color signal into an intermediate color space representation of the multiprimary signal, computing a quality measure of the intermediate color space representations of the color signal and the multiprimary signal, repeating the converting of a multiprimary signal and the computing for the remainder of the plurality of multiprimary signals, and selecting a multiprimary signal that optimizes the quality measure. The quality measure can consider requirements such as those minimizing a distance between the color signal and the multiprimary signal, an energy change as well as a phase change between the multiprimary signal and its neighbors, all leading to improved image quality.

    Abstract translation: 用于生成用于显示设备的多原色信号的系统和方法。 优选实施例包括将颜色信号转换为彩色信号的中间色彩空间表示，将作为彩色信号的表示的多个多原色信号中的一个转换为多原色信号的中间色彩空间表示，计算质量度量 重复多原色信号的转换和多原色信号的其余部分的计算，并且选择优化质量测量的多原色信号。 质量测量可以考虑诸如使颜色信号和多原色信号之间的距离最小化，能量变化以及多原色信号与其邻居之间的相位变化的要求，这些都导致改进的图像质量。

    Smart wheelchair
    14.
    外观设计
    Smart wheelchair 有权

    公开(公告)号：USD1043456S1

    公开(公告)日：2024-09-24

    申请号：US29861260

    申请日：2022-11-29

    Applicant: Rajeev Ramanath

    Designer： Rajeev Ramanath ,  Ajay Anand ,  Amit Krishn Gulati

    Abstract: FIG. 1 is a front perspective view of a smart wheelchair;
    FIG. 2 is a back perspective view thereof;
    FIG. 3 is a front view thereof;
    FIG. 4 is a back view thereof;
    FIG. 5 is a left-side view thereof;
    FIG. 6 is a right-side view thereof.
    FIG. 7 is a top view thereof; and,
    FIG. 8 is a bottom view thereof.
    The portions of the smart wheelchair shown in broken lines are environmental and forms no part of the claimed design.

    Smart wheelchair
    15.
    外观设计
    Smart wheelchair 有权

    公开(公告)号：USD1037944S1

    公开(公告)日：2024-08-06

    申请号：US29901442

    申请日：2023-09-01

    Applicant: Rajeev Ramanath

    Designer： Rajeev Ramanath ,  Ajay Anand ,  Amit Krishn Gulati

    Abstract: FIG. 1 is a front perspective view of a smart wheelchair;
    FIG. 2 is a back perspective view thereof;
    FIG. 3 is a front view thereof;
    FIG. 4 is a back view thereof;
    FIG. 5 is a left-side view thereof;
    FIG. 6 is a right-side view thereof.
    FIG. 7 is a top view thereof; and,
    FIG. 8 is a bottom view thereof.
    The portions of the smart wheelchair shown in broken lines are environmental and forms no part of the claimed design.

    System and method to combine input from multiple sensors on an autonomous wheelchair
    17.
    发明授权
    System and method to combine input from multiple sensors on an autonomous wheelchair 有权

    公开(公告)号：US11730646B2

    公开(公告)日：2023-08-22

    申请号：US17485350

    申请日：2021-09-25

    Applicant: Rajeev Ramanath

    Inventor： Rajeev Ramanath ,  Ramin Nabati

    IPC: A61G5/04 ,  G05D1/02

    CPC classification number: A61G5/04 ,  G05D1/0217 ,  G05D1/0238 ,  G05D1/0246 ,  A61G2203/22 ,  A61G2203/40 ,  A61G2203/72 ,  G05D2201/0206

    Abstract: The invention discloses a system for controlling the movement of a personal mobility vehicle including a processing unit that receives and processes a location data of one or more obstacles over a period of time, determines a change frequency of change of location of the obstacles during the period of time, and generates a movement state categorization of the obstacles categorizing them into either a dynamic obstacle or a static obstacle. The processing unit further determines a dynamic distance traveled by the dynamic obstacle during the period of time, the velocity of the dynamic obstacle, determines movement probability data that relates to the probability of movement of a static obstacle based on the change frequency of change of location, and, determines velocity prediction data of a dynamic obstacle based on the velocity of dynamic obstacles during various time intervals of the time period.

    Color processing method usable in imaging systems
    19.
    发明授权
    Color processing method usable in imaging systems 有权
    可用于成像系统的彩色处理方法

    公开(公告)号：US08305395B2

    公开(公告)日：2012-11-06

    申请号：US11741972

    申请日：2007-04-30

    Applicant: Rajeev Ramanath ,  Takeshi Honzawa

    Inventor： Rajeev Ramanath ,  Takeshi Honzawa

    IPC: G09G5/02

    CPC classification number: H04N9/3114

    Abstract: In a method embodiment, a method for image processing includes receiving one or more signals indicative of an optical characteristic of one or more respective light beams. A transform is generated based on the received one or more signals. The transform converts a first plurality of image components encoded by a first plurality of colors to a second plurality of image components encoded by a second plurality of colors.

    Abstract translation: 在方法实施例中，一种用于图像处理的方法包括接收指示一个或多个相应光束的光学特性的一个或多个信号。 基于所接收的一个或多个信号产生变换。 该变换将由第一多个颜色编码的第一多个图像分量转换为由第二多个颜色编码的第二多个图像分量。

    Encoding optical spectra using a DMD array
    20.
    发明授权
    Encoding optical spectra using a DMD array 有权
    使用DMD阵列编码光谱

    公开(公告)号：US08144321B2

    公开(公告)日：2012-03-27

    申请号：US12256005

    申请日：2008-10-22

    Applicant: Walter M. Duncan ,  James N. Malina ,  Rajeev Ramanath

    Inventor： Walter M. Duncan ,  James N. Malina ,  Rajeev Ramanath

    IPC: G01J3/28

    CPC classification number: G01J3/02 ,  G01J3/021 ,  G01J3/0224 ,  G01J3/0229

    Abstract: According to one embodiment of the present invention, a system for encoding an optical spectrum includes a dispersive element, a digital micromirror device (DMD) array, a detector, and a controller. The dispersive element receives light from a source and disperses the light to yield light components of different wavelengths. The digital micromirror device (DMD) array has micromirrors that modulate the light to encode an optical spectrum of the light. The detector detects the light that has been modulated. The controller generates an intensity versus time waveform representing the optical spectrum of the detected light.

    Abstract translation: 根据本发明的一个实施例，用于编码光谱的系统包括色散元件，数字微镜器件（DMD）阵列，检测器和控制器。 分散元件接收来自光源的光，并分散光以产生不同波长的光分量。 数字微镜器件（DMD）阵列具有调制光以编码光的光谱的微镜。 检测器检测已调制的光。 控制器产生表示检测到的光的光谱的强度对时间波形。

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