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公开(公告)号：US20150245038A1
公开(公告)日：2015-08-27
申请号：US14626045
申请日：2015-02-19
Applicant: Texas Instruments Incorporated
Inventor： Todd Alan Clatanoff , Jeffrey Matthew Kempf
IPC: H04N19/17 , H04N9/31 , G09G3/36 , H04N19/184
CPC classification number: G09G3/36 , H04N9/3111 , H04N9/3179
Abstract: Methods and apparatus for reduced bandwidth pulse width modulation are disclosed. A system includes a digital controller circuit coupled to a data interface, the digital controller circuit configured to receive image data for display and further configured to encode line data for transmission to a spatial light modulator using a data compression scheme; and the spatial light modulator coupled to the data interface and configured to receive encoded data and to decode the encoded data to produce unencoded data corresponding to pixel data for display on an array of pixel elements in the spatial light modulator; wherein data transmitted from the digital controller circuit to the spatial light modulator further comprises encoded data that is formed from bit planes using a data compression scheme to form partial lines of data. Additional methods and apparatus are disclosed.
Abstract translation: 公开了用于减小带宽脉宽调制的方法和装置。 一种系统包括耦合到数据接口的数字控制器电路，所述数字控制器电路被配置为接收用于显示的图像数据，并且还被配置为编码线数据以便使用数据压缩方案传输到空间光调制器; 并且所述空间光调制器耦合到所述数据接口并且被配置为接收编码数据并解码所述编码数据以产生对应于像素数据的未编码数据，以在所述空间光调制器中的像素阵列阵列上显示; 其中从数字控制器电路发送到空间光调制器的数据还包括使用数据压缩方案由位平面形成的编码数据，以形成部分数据线。 公开了附加的方法和装置。
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公开(公告)号：US12067956B2
公开(公告)日：2024-08-20
申请号：US17683128
申请日：2022-02-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Jeffrey Matthew Kempf , Aravind Lakshminarayanan , Jonathan Lucas
CPC classification number: G09G5/022 , G09G2320/0285 , G09G2360/123
Abstract: A controller includes a frame memory configured to store an image frame, a frame memory controller coupled to the frame memory and configured to obtain image data from the image frame. The image data is associated with a color component of the image frame. The controller also includes a dither noise mask generator configured to provide dither noise masks according to dither noise levels for the image data, and a bit plane generator coupled to the frame memory controller and the dither noise mask generator and configured to generate bit planes based on the dither noise masks for the image data.
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公开(公告)号：US11765325B2
公开(公告)日：2023-09-19
申请号：US17085483
申请日：2020-10-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Kristofer Scott Oberascher , Gregory Scott Pettitt , Jeffrey Matthew Kempf , Michael Terry Davis , Xi Zhou
CPC classification number: H04N9/3117 , G03B21/2066 , H04N9/3158
Abstract: A system having a color filter having first and second segments. The first and second segments allow respective first and second wavelengths to pass through to a spatial light modulator. The first and second segments also reflect second and first wavelengths, respectively. The reflected first and second wavelengths are recycled and directed towards the color filter.
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公开(公告)号：US11754905B2
公开(公告)日：2023-09-12
申请号：US16586644
申请日：2019-09-27
Applicant: Texas Instruments Incorporated
Inventor： Jeffrey Matthew Kempf , Nirmal C. Warke , David P. Magee , Rahmi Hezar , Baher S. Haroun
CPC classification number: G02F1/292 , G01S7/4814 , G01S17/08
Abstract: In described examples, a system (e.g., a security system or a vehicle operator assistance system) is configured to configure a phased spatial light modulator (SLM) to generate a diffraction pattern. A coherent light source is optically coupled to direct coherent light upon the SLM. The SLM is configured to project diffracted coherent light toward a region of interest. An optical element is configured to focus the diffracted coherent light toward the at least one region of interest.
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公开(公告)号：US11657541B2
公开(公告)日：2023-05-23
申请号：US17139407
申请日：2020-12-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Jeffrey Matthew Kempf , Jonathan Andrew Lucas
CPC classification number: G06T9/00 , G06T3/4007 , G06T3/4015
Abstract: A method to compress an image includes assigning each pixel of the image to a cluster based on a red-green-blue (RGB) location of the pixel. The method also includes updating a centroid of the cluster after each pixel is assigned, based at least in part on the RGB location of the pixel, where the centroid is an RGB location. The method includes replacing each pixel in the image with an RGB value of the centroid of the cluster to which the pixel is assigned. The method also includes instructing a display to display a compressed image where, in the compressed image, each pixel in the image is replaced with the RGB value of the centroid of the cluster to which the pixel is assigned.
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Patent Agency Ranking
公开(公告)号：US11350066B1
公开(公告)日：2022-05-31
申请号：US17118327
申请日：2020-12-10
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Jaime Rene De La Cruz Vazquez , Jeffrey Matthew Kempf
Abstract: A method includes projecting an image onto a projection surface through a projection lens of a projector, where the image comprises a fiducial marker. The method also includes capturing a point cloud of the fiducial marker with a camera, and generating a distortion map of projection lens distortion based at least in part on the point cloud. The method also includes generating a correction map for the projection lens, and applying the correction map to a video signal input to the projector.
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公开(公告)号：US10798350B2
公开(公告)日：2020-10-06
申请号：US16050697
申请日：2018-07-31
Applicant: Texas Instruments Incorporated
Inventor： Vikrant R. Bhakta , Jeffrey Matthew Kempf
Abstract: Described examples include an optical apparatus having a first lens, a first optical element having a first aperture, a second lens, and a second optical element having a second aperture. The optical apparatus includes a third lens having a first portion to receive projected light from the first lens through the first aperture and to project the projected light onto a target. Also, the third lens has a second portion to receive reflected light reflected from the target and to provide the reflected light to the second lens through the second aperture.
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公开(公告)号：US20190166348A1
公开(公告)日：2019-05-30
申请号：US15826181
申请日：2017-11-29
Applicant: Texas Instruments Incorporated
Inventor： Jeffrey Matthew Kempf , Vikrant R. Bhakta
Abstract: Described examples include an imager includes a light source; a spatial light modulator to receive light from the light source and to provide patterned light to illuminate an object; a sensor to receive a first and an offset reflected light from reflection of the patterned light off an object; and a processor to receive sensed images of the first reflected light and the offset reflected light and apply a deconvolution to a combined image including a combination of the sensed images of the first reflected light and the offset reflected light to generate the combined image having pixel density greater than the sensed images of the first reflected light and the offset reflected light, wherein the processor is configured to determine a position of at least one point on the object by triangulation between the spatial light modulator and the sensor using the patterned light and the combined image.
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公开(公告)号：US20160345021A1
公开(公告)日：2016-11-24
申请号：US14718004
申请日：2015-05-20
Applicant: Texas Instruments Incorporated
Inventor： Jeffrey Matthew Kempf , Daniel Jay Morgan
IPC: H04N19/57 , H04N19/55 , H04N19/513
CPC classification number: H04N19/53
Abstract: A video display system is configured to receive a sequence of image frames. Each frame is divided into a set of blocks. A center of mass is calculated for each block in a first frame and is saved for all blocks in the first frame. A center of mass is calculated for each block in a second frame. Motion between the first frame and the second frame is detected by comparing the center of mass of each block in the second frame to the center of mass of the corresponding block in the first frame, in which a still block is detected when a corresponding block in the first frame and the second frame have a same center of mass, and in which motion in a block is detected when a corresponding block in the first frame and the second frame have a different center of mass.
Abstract translation: 视频显示系统被配置为接收一系列图像帧。 每个帧被分成一组块。 为第一帧中的每个块计算质心，并为第一帧中的所有块保存。 对于第二帧中的每个块计算质心。 通过将第二帧中的每个块的质心与第一帧中的对应块的质心进行比较来检测第一帧和第二帧之间的运动，其中当相应块在 第一框架和第二框架具有相同的质心，并且当第一框架和第二框架中的相应块具有不同的质心时，在块中检测运动。
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公开(公告)号：US12212899B2
公开(公告)日：2025-01-28
申请号：US18344979
申请日：2023-06-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Abstract: An apparatus includes a first camera configured to capture a first image being displayed, a second camera configured to capture a second image being displayed, and a processor configured to generate a pair-wise homography transform for the first camera and the second camera, and map, based on the pair-wise homography transform, the second image from a second frame of reference of the second camera to a first frame of reference of the first camera. The processor is further configured to determine a first corrected quadrilateral for the first image and a second corrected quadrilateral for the second image in the first frame of reference, and project, based on the pair-wise homography transform, the second corrected quadrilateral from the first frame of reference to the second frame of reference. The quadrilaterals are then processed to warp respective images for geometric correction before projecting the images by respective projectors.
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