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    Eyewear device with fingerprint sensor for user input
    11.
    发明授权
    Eyewear device with fingerprint sensor for user input 有权

    公开(公告)号：US11092998B1

    公开(公告)日：2021-08-17

    申请号：US16242240

    申请日：2019-01-08

    Applicant: Julio Cesar Castañeda ,  Rajeev Ramanath

    Inventor： Julio Cesar Castañeda ,  Rajeev Ramanath

    IPC: G06F1/16 ,  G02C7/02 ,  G06K9/00 ,  G06F1/3293

    Abstract: A system comprises an eyewear device that includes a frame, a temple connected to a lateral side of the frame, a fingerprint sensor, and a sensing circuit. The fingerprint sensor includes an input surface to receive input of a finger skin surface. The sensing circuit is configured to track a pattern of fingerprint ridges of the finger skin surface on the input surface. Execution of programming by a processor configures the system to perform functions to track, via the sensing circuit, the pattern of fingerprint ridges of the finger skin surface on the input surface; generate a fingerprint image having the tracked pattern of fingerprint ridges; extract fingerprint features from the fingerprint image; and authorize the user to utilize the eyewear device based on the extracted fingerprint features.

    System and method to generate multiprimary signals
    13.
    发明授权
    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：US07835574B2

    公开(公告)日：2010-11-16

    申请号：US11403493

    申请日：2006-04-13

    Applicant: Rajeev Ramanath

    Inventor： Rajeev Ramanath

    IPC: G06K9/00

    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。

    Apparatus and method for automatically adjusting white point during video display
    14.
    发明申请
    Apparatus and method for automatically adjusting white point during video display 审中-公开
    在视频显示期间自动调整白点的装置和方法

    公开(公告)号：US20070081102A1

    公开(公告)日：2007-04-12

    申请号：US11247878

    申请日：2005-10-11

    Applicant: Rajeev Ramanath ,  Gregory Pettitt

    Inventor： Rajeev Ramanath ,  Gregory Pettitt

    IPC: H04N5/58

    CPC classification number: H04N9/73 ,  G09G2320/0242 ,  G09G2360/144 ,  H04N5/58 ,  H04N9/3182 ,  H04N9/3194 ,  H04N21/42202 ,  H04N21/4318

    Abstract: The present disclosure relates to systems and processes for automatically adjusting the white point of displayed images to account for changes in ambient light. In one embodiment, a display system includes a display device having sensors for recording the red (R), green (G) and blue (B) values for ambient light and measuring the intensity of such light. The sensors feed these values into a processor, which calculates R, G, B gain values to be applied to the video input R, G, B values. In this manner, the display device can account for changes in ambient light to adjust the perceived white point accordingly. Related methods for automatically adjusting the white point of a perceived image are also described.

    Abstract translation: 本公开涉及用于自动调整显示图像的白点以解决环境光的变化的系统和过程。 在一个实施例中，显示系统包括具有用于记录环境光的红色（R），绿色（G）和蓝色（B）值的传感器的显示装置，并测量这种光的强度。 传感器将这些值馈送到处理器中，该处理器计算要应用于视频输入R，G，B值的R，G，B增益值。 以这种方式，显示装置可以考虑环境光的变化，以相应地调整感知的白点。 还描述了用于自动调整感知图像的白点的相关方法。

    Smart wheelchair
    15.
    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
    16.
    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
    18.
    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
    20.
    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。

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