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    Eyewear device with fingerprint sensor for user input
    3.
    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
    5.
    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
    7.
    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
    8.
    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
    9.
    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.

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