公开(公告)号：US20230254496A1

公开(公告)日：2023-08-10

申请号：US18137681

申请日：2023-04-21

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shyam Jagannathan ,  Naveen Srinivasamurthy

IPC: H04N19/433

CPC classification number: H04N19/433 ,  H04N19/43

Abstract: A video encoder including a first buffer containing a plurality of data values defining a macroblock of pixels of a video frame. The video encoder also includes a second buffer and an entropy encoder coupled to the first and second buffers and configured to encode a macroblock based on another macroblock. The entropy encoder identifies a subset of the data values from the first buffer defining a given macroblock and copies the identified subset to the second buffer, the subset of data values being just those data values used by the entropy encoder when subsequently encoding another macroblock.

公开(公告)号：US20220101083A1

公开(公告)日：2022-03-31

申请号：US17035879

申请日：2020-09-29

Applicant: Texas Instruments Incorporated

Inventor： Mihir Narendra Mody ,  Shyam Jagannathan ,  Manu Mathew ,  Jason T. Jones

IPC: G06N3/04

Abstract: Described examples include an integrated circuit including a vector multiply unit including a plurality of multiply/accumulate nodes, in which the vector multiply unit is operable to provide an output from the multiply/accumulate nodes, a first data feeder operable to provide first data to the vector multiply unit in vector format, and a second data feeder operable to provide second data to the vector multiply unit in vector format.

公开(公告)号：US11231929B2

公开(公告)日：2022-01-25

申请号：US16420447

申请日：2019-05-23

Applicant: Texas Instruments Incorporated

Inventor： Son Hung Tran ,  Shyam Jagannathan ,  Timothy David Anderson

IPC: G06F9/34 ,  G06F12/08 ,  G06F11/00 ,  G06F17/16 ,  G06F9/30 ,  G06F9/38 ,  G06F11/10 ,  G06F9/32 ,  G06F12/0875 ,  G06F12/0897 ,  G06F9/345

Abstract: Software instructions are executed on a processor within a computer system to configure a steaming engine with stream parameters to define a multidimensional array. The stream parameters define a size for each dimension of the multidimensional array and a specified width for a selected dimension of the array. Data is fetched from a memory coupled to the streaming engine responsive to the stream parameters. A stream of vectors is formed for the multidimensional array responsive to the stream parameters from the data fetched from memory. When the selected dimension in the stream of vectors exceeds the specified width, the streaming engine inserts null elements into each portion of a respective vector for the selected dimension that exceeds the specified width in the stream of vectors. Stream vectors that are completely null are formed by the streaming engine without accessing the system memory for respective data.

公开(公告)号：US20210044815A1

公开(公告)日：2021-02-11

申请号：US17080486

申请日：2020-10-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shyam Jagannathan ,  Naveen Srinivasamurthy

IPC: H04N19/433 ,  H04N19/43

Abstract: A video encoder including a first buffer containing a plurality of data values defining a macroblock of pixels of a video frame. The video encoder also includes a second buffer and an entropy encoder coupled to the first and second buffers and configured to encode a macroblock based on another macroblock. The entropy encoder identifies a subset of the data values from the first buffer defining a given macroblock and copies the identified subset to the second buffer, the subset of data values being just those data values used by the entropy encoder when subsequently encoding another macroblock.

公开(公告)号：US10824934B2

公开(公告)日：2020-11-03

申请号：US15784588

申请日：2017-10-16

Applicant: Texas Instruments Incorporated

Inventor： Mihir Narendra Mody ,  Shyam Jagannathan ,  Manu Mathew ,  Jason T. Jones

IPC: G06N3/04 ,  G06F17/16 ,  G06F7/52 ,  G06F7/544 ,  G06N3/063 ,  G06N3/08

Abstract: Described examples include an integrated circuit including a vector multiply unit including a plurality of multiply/accumulate nodes, in which the vector multiply unit is operable to provide an output from the multiply/accumulate nodes, a first data feeder operable to provide first data to the vector multiply unit in vector format, and a second data feeder operable to provide second data to the vector multiply unit in vector format.

公开(公告)号：US09473782B2

公开(公告)日：2016-10-18

申请号：US13663931

申请日：2012-10-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shyam Jagannathan ,  Naveen Srinivasamurthy

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/433 ,  H04N19/43

CPC classification number: H04N19/433 ,  H04N19/43

Abstract: A video encoder comprises a loop filter to filter luminance and chrominance pixel values, first and second loop filter working buffers accessible to the loop filter, and ping and pong loop filter data buffers accessible to the loop filter and to a direct memory access (DMA) engine. The loop filter filters pixels about a plurality of vertical edges and a plurality of horizontal edges for each macroblock in a video frame. The loop filter distributes partially filtered luma and chrominance pixel values across the first and second loop filter working buffers as well as the ping and pong loop filter data buffers, and does not save partially filtered luma and chrominance pixel values to external memory via the DMA engine.

Abstract translation: 视频编码器包括用于滤除亮度和色度像素值的环路滤波器，环路滤波器可访问的第一和第二环路滤波器工作缓冲器以及环路滤波器可访问的乒乓环路滤波器数据缓冲器以及直接存储器访问（DMA） 发动机。 环路滤波器对视频帧中的每个宏块的多个垂直边缘和多个水平边缘滤波像素。 环路滤波器在第一和第二环路滤波器工作缓冲器以及乒乓环路滤波器数据缓冲器中分配部分滤波的亮度和色度像素值，并且不通过DMA引擎将部分滤波的亮度和色度像素值保存到外部存储器 。

公开(公告)号：US12143610B2

公开(公告)日：2024-11-12

申请号：US18137681

申请日：2023-04-21

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shyam Jagannathan ,  Naveen Srinivasamurthy

IPC: H04N19/433 ,  H04N19/43

Abstract: A video encoder including a first buffer containing a plurality of data values defining a macroblock of pixels of a video frame. The video encoder also includes a second buffer and an entropy encoder coupled to the first and second buffers and configured to encode a macroblock based on another macroblock. The entropy encoder identifies a subset of the data values from the first buffer defining a given macroblock and copies the identified subset to the second buffer, the subset of data values being just those data values used by the entropy encoder when subsequently encoding another macroblock.

公开(公告)号：US11831927B2

公开(公告)日：2023-11-28

申请号：US17331159

申请日：2021-05-26

Applicant: Texas Instruments Incorporated

Inventor： Soyeb Nagori ,  Shyam Jagannathan ,  Deepak Kumar Poddar ,  Arun Shankar Kudana ,  Pramod Swami ,  Manoj Koul

IPC: H04N19/86 ,  H04N19/176 ,  H04N19/117 ,  H04N19/139 ,  H04N19/82

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/139 ,  H04N19/176 ,  H04N19/82

Abstract: The disclosure provides a noise filter. The noise filter includes a motion estimation (ME) engine. The ME receives a current frame and a reference frame. The current frame comprising a current block and the reference frame includes a plurality of reference blocks. The ME engine generates final motion vectors. The current block comprises a plurality of current pixels. A motion compensation unit generates a motion compensated block based on the final motion vectors and the reference frame. The motion compensated block includes a plurality of motion compensated pixels. A weighted average filter multiplies each current pixel of the plurality of current pixels and a corresponding motion compensated pixel of the plurality of motion compensated pixels with a first weight and a second weight respectively. The weighted average filter generates a filtered block. A blockiness removal unit is coupled to the weighted average filter and removes artifacts in the filtered block.

公开(公告)号：US10977560B2

公开(公告)日：2021-04-13

申请号：US16390082

申请日：2019-04-22

Applicant: Texas Instruments Incorporated

Inventor： Shyam Jagannathan ,  Pramod Kumar Swami

IPC: G06N5/00 ,  G06K9/00 ,  G06K9/62 ,  G06N20/00 ,  G06F9/38 ,  G06N5/02

Abstract: A method for object classification in a decision tree based adaptive boosting (AdaBoost) classifier implemented on a single-instruction multiple-data (SIMD) processor is provided that includes receiving feature vectors extracted from N consecutive window positions in an image in a memory coupled to the SIMD processor and evaluating the N consecutive window positions concurrently by the AdaBoost classifier using the feature vectors and vector instructions of the SIMD processor, in which the AdaBoost classifier concurrently traverses decision trees for the N consecutive window positions until classification is complete for the N consecutive window positions.

公开(公告)号：US10856000B2

公开(公告)日：2020-12-01

申请号：US16108422

申请日：2018-08-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shyam Jagannathan ,  Naveen Srinivasamurthy

IPC: H04N19/433 ,  H04N19/43

Abstract: A video encoder including a first buffer containing a plurality of data values defining a macroblock of pixels of a video frame. The video encoder also includes a second buffer and an entropy encoder coupled to the first and second buffers and configured to encode a macroblock based on another macroblock. The entropy encoder identifies a subset of the data values from the first buffer defining a given macroblock and copies the identified subset to the second buffer, the subset of data values being just those data values used by the entropy encoder when subsequently encoding another macroblock.