公开(公告)号：US20240371342A1

公开(公告)日：2024-11-07

申请号：US18775893

申请日：2024-07-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jeffrey Kempf ,  Aravind Lakshminarayanan ,  Jonathan Lucas

IPC: G09G5/02

Abstract: A system, includes a controller configured to obtain, for an image frame stored in a frame memory image, data associated with a color component and generate dithered bit planes having a dither noise pattern, the dithered bit planes including time repeated bit plane sequences in the image frame. The system also includes a spatial light modulator (SLM) coupled to the controller. The SLM is configured to project an image of the image frame according to the dithered bit planes. Additionally, the system includes a light source optically coupled to the SLM. The light source is configured to provide light for projecting the image.

公开(公告)号：US20230342958A1

公开(公告)日：2023-10-26

申请号：US17950705

申请日：2022-09-22

Applicant: Texas Instruments Incorporated

Inventor： Jeffrey Kempf ,  Kevin Tomei ,  Tyler Bower ,  Eric Pruett

IPC: G06T7/521 ,  G06T7/55

CPC classification number: G06T7/521 ,  G06T7/55 ,  G06T2207/10028

Abstract: Methods, apparatus, systems, and articles of manufacture to generate 3D point clouds based on spatiotemporal light patterns are disclosed. A controller includes processor circuitry to execute the instructions to generate a series of light patterns based on a set of light pattern tiles. Each of the light pattern tiles is defined by a different arrangement of illuminated pixels. Each of the light patterns is defined by a different arrangement of the light pattern tiles. The processor circuitry is to instruct a projector to project the series of light patterns; instruct an image sensor to capture a series of images of reflections of the series of light patterns; and generate a three-dimensional point cloud based on the series of captured images.

公开(公告)号：US20230245347A1

公开(公告)日：2023-08-03

申请号：US18298448

申请日：2023-04-11

Applicant: Texas Instruments Incorporated

Inventor： Jeffrey Kempf ,  Jonathan Andrew Lucas

IPC: G06T9/00 ,  G06T3/40

CPC classification number: G06T9/00 ,  G06T3/4015 ,  G06T3/4007

Abstract: A device includes a memory and at least one processor coupled to the memory. The at least one processor is configured to obtain an image and determine a parent cluster of pixels of an image having a centroid. The at least one processor is also configured to split the parent cluster into at least a first child cluster and a second child cluster and assign a pixel of the image to the first child cluster. Additionally, the at least one processor is configured to update a centroid of the first child cluster based at least in part on the pixel, replace the pixel in the image with the centroid of the first child cluster to produce a compressed image, and store the compressed image in the memory.

公开(公告)号：US20240249699A1

公开(公告)日：2024-07-25

申请号：US18158119

申请日：2023-01-23

Applicant: Texas Instruments Incorporated

Inventor： Jeffrey Kempf ,  Gregory S. Pettitt

IPC: G09G5/06

CPC classification number: G09G5/06 ,  G09G2320/0666

Abstract: A system includes a spatial light modulator (SLM) and a circuit including a processor. The SLM includes pixel elements. The circuit is configured to convert M primary video signals to N multi-primary video signals. The circuit is configured to use a first multi-primary video signal to derive a first additive offset to a first primary video signal, to use the first multi-primary video signal to derive a second additive offset to a second primary video signal of the M primary video signals, to add the first additive offset to the first primary video signal, to add the second additive offset to the second primary video signal, and to derive a bit plane based on the first primary signal having the first additive offset added thereto and to transmit the bit plane to the SLM to selectively control on and off states of the pixel elements of the SLM.

公开(公告)号：US20240071324A1

公开(公告)日：2024-02-29

申请号：US18502126

申请日：2023-11-06

Applicant: Texas Instruments Incorporated

Inventor： Aravind Lakshminarayanan ,  Jeffrey Kempf ,  Paul Rancuret

IPC: G09G3/34 ,  G09G3/00

CPC classification number: G09G3/3413 ,  G09G3/001 ,  G09G2320/0242 ,  G09G2320/0666 ,  G09G2320/0693 ,  G09G2354/00 ,  G09G2360/144 ,  G09G2360/145

Abstract: An example apparatus comprising: a controller configured to: access a content brightness map; determine an amplitude of a light emitting diode (LED) current based on the content brightness map, a target brightness, or a target color temperature; determine a pulse width modulation (PWM) sequence based on the content brightness map, the target brightness, or the target color temperature; determine an LED PWM signal based on the content brightness map, the target brightness, the target color temperature, or the amplitude of the LED current; transmit a signal indicating the LED current to an LED; transmit the PWM sequence to a spatial light modulator (SLM); and transmit the LED PWM signal to the LED.

公开(公告)号：US20130063470A1

公开(公告)日：2013-03-14

申请号：US13669112

申请日：2012-11-05

Applicant: Texas Instruments Incorporated

Inventor： Jeffrey Kempf ,  Rajeev Ramanath

IPC: G09G5/02

CPC classification number: G09G5/06 ,  G09G3/2044 ,  G09G3/346 ,  G09G2320/0276

Abstract: System and method for generating multiprimary signals with optimization for bit depth for use in display devices. A preferred embodiment comprises converting an input color signal into an output color signal, wherein the number of colors in the output color signal is less than a number of colors used in a display system, when a weighting of the input color signal is less than a specified threshold, and converting the input color signal into an output color signal, wherein the number of colors in the output color signal is equal to the number of colors used in the display system, when the weighting of the input color signal is greater than the specified threshold. The use of fewer colors eliminates low bit depth colors, allowing increased dither quality in dimmer images.

Abstract translation: 用于生成多原色信号的系统和方法，具有用于显示设备的位深度优化。 优选实施例包括将输入彩色信号转换为输出彩色信号，其中输出彩色信号中的颜色数量小于在显示系统中使用的颜色数量，当输入彩色信号的加权小于 并且将输入颜色信号转换为输出颜色信号，其中输入颜色信号中的颜色数量等于显示系统中使用的颜色数量，当输入颜色信号的加权大于 指定阈值。 使用较少的颜色可以消除低位深度颜色，从而在调光图像中增加抖动质量。