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。

公开(公告)号：US20080152219A1

公开(公告)日：2008-06-26

申请号：US11616170

申请日：2006-12-26

Applicant: Rajeev Ramanath ,  Donald B. Doherty ,  Gregory S. Pettitt

Inventor： Rajeev Ramanath ,  Donald B. Doherty ,  Gregory S. Pettitt

IPC: G06K9/00

CPC classification number: H04N1/6016 ,  G09G5/02 ,  G09G2310/0235 ,  G09G2320/0666 ,  G09G2340/06

Abstract: An improved color processing method for use in imaging systems transforms the input color image components into an output set of color image components, at least one of which is transformed using a non-linear transformation function.

Abstract translation: 用于成像系统的改进的颜色处理方法将输入彩色图像分量变换为彩色图像分量的输出组，其中至少一个使用非线性变换函数进行变换。

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。

公开(公告)号：US20220404863A1

公开(公告)日：2022-12-22

申请号：US17894144

申请日：2022-08-23

Applicant: Julio Cesar Castañeda ,  Rajeev Ramanath

Inventor： Julio Cesar Castañeda ,  Rajeev Ramanath

IPC: G06F1/16 ,  G02C7/02 ,  G06F1/3293 ,  G06V40/13 ,  G06V40/12

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.

公开(公告)号：US11460885B2

公开(公告)日：2022-10-04

申请号：US17402731

申请日：2021-08-16

Applicant: Julio Cesar Castañeda ,  Rajeev Ramanath

Inventor： Julio Cesar Castañeda ,  Rajeev Ramanath

IPC: G06F1/16 ,  G02C7/02 ,  G06F1/3293 ,  G06V40/13 ,  G06V40/12

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.

公开(公告)号：US20220097532A1

公开(公告)日：2022-03-31

申请号：US17484450

申请日：2021-09-24

Applicant: Rajeev Ramanath

Inventor： Rajeev Ramanath ,  Julio Cesar Castañeda

IPC: B60L15/20 ,  A61G5/04 ,  A61G5/12

Abstract: A personal mobility vehicle 1 includes one or more automation components, a vault 2, and locking means 3 adapted to lock the vault 2. The automation components include at least one of a motor controller, computing processors, or a battery to power other automation components, or combination thereof. The functional components are the components that either display various information related to navigation of the vehicle, or receive inputs to be processed by the computing processor or microcontroller, or receives triggers from the motor controller or the computing processor regarding the functioning of the functional components, or combination thereof. Inside the vault 2, the automation components are placed, such that the automation components are functionally connected to other functional components of the vehicle 1. The embodiment helps to safeguard the automation components, and keep them protected, such that authorized personnel have access to the automation components inside the vault. These automation components are critical to functioning of the vehicle 1.

公开(公告)号：US20220096290A1

公开(公告)日：2022-03-31

申请号：US17484332

申请日：2021-09-24

Applicant: Rajeev Ramanath

Inventor： Rajeev Ramanath

IPC: A61G5/04 ,  A61G5/10

Abstract: A system 1 for controlling a powered personal mobility vehicle 8. The system includes an input module 2, a processing unit 4, and a motor controller 7. The input module 2 receives manual triggers 3 regarding the movement of the personal mobility vehicle 8. The processing unit 4 processes a location information 5 or a distance information 6 at a given point in time, and further, either generate an automatic trigger 19, and disable or curtail the functioning of the input module 2, or enable the functioning of the input module 2. The location information 5 is defined as a location of an obstacle co-located in an environment in which the personal mobility vehicle 8 is placed or being driven, and the distance information 6 is defined as the distance of the obstacle from the vehicle 8 at a given point in time. The motor controller 7 receives and processes manual triggers 3 or automatic triggers 19 and controls movement of the personal mobility vehicle 8.

公开(公告)号：US20210373595A1

公开(公告)日：2021-12-02

申请号：US17402731

申请日：2021-08-16

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.

公开(公告)号：US11163155B1

公开(公告)日：2021-11-02

申请号：US16215785

申请日：2018-12-11

Applicant: Julio Cesar Castañeda ,  Rajeev Ramanath

Inventor： Julio Cesar Castañeda ,  Rajeev Ramanath

IPC: G02B27/00 ,  G02B27/01 ,  G06F1/3231 ,  G06F1/3206 ,  G06F1/3203 ,  G06F1/16 ,  G06F21/32

Abstract: Eyewear including a support structure defining a region for receiving a head of a user. The support structure supports optical elements, electronic components, and a use detector. The use detector is coupled to the electronic components and is positioned to identify when the head of the user is within the region defined by the support structure. The electronic components monitor the use detector and transition from a first mode of operation to a second mode of operation when the use detector senses the head of the user in the region.

公开(公告)号：US11137620B2

公开(公告)日：2021-10-05

申请号：US16263034

申请日：2019-01-31

Applicant: Julio Cesar Castañeda ,  Rajeev Ramanath

Inventor： Julio Cesar Castañeda ,  Rajeev Ramanath

IPC: G02C5/14 ,  G02C5/02 ,  H05K1/18 ,  A61B5/021 ,  A61B5/024 ,  G02C5/12 ,  G02C11/00

Abstract: In an example, the eyewear includes an optical element, electronic components, and a support structure configured to support the optical element and the electronic components. The support structure defines a region for receiving at least a portion of a head of a user. The eyewear also includes a biometric sensor coupled to the electronic components and supported by the support structure. The biometric sensor is attached to the support structure and positioned to detect, in the region, a biometric signal representative of a biometric of the user for processing by the electronic components.