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公开(公告)号：US20230239515A1
公开(公告)日：2023-07-27
申请号：US18129043
申请日：2023-03-30
Applicant: Apple Inc.
Inventor： Jim C. Chou , Syed Muhammad A. Rizvi
IPC: H04N19/91 , H04N19/156 , H04N19/174 , H04N19/436 , H04N19/127
CPC classification number: H04N19/91 , H04N19/156 , H04N19/174 , H04N19/436 , H04N19/127
Abstract: Systems and methods for improving determination of encoded image data using a video encoding pipeline, which includes a first transcode engine that entropy encodes a first portion of a bin stream to determine a first bit stream including first encoded image data that indicates a first coding group row and that determines first characteristic data corresponding to the first bit stream to facilitate communicating a combined bit stream; and a second transcode engine that entropy encodes a second portion of the bin stream to determine a second bit stream including second encoded image data that indicates a second coding group row while the first transcode engine entropy encodes the first portion of the bin stream and that determines second characteristic data corresponding to the second bit stream to facilitate communicating the combined bit stream, which includes the first bit stream and the second bit stream, to a decoding device.
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公开(公告)号：US11695977B2
公开(公告)日：2023-07-04
申请号：US16586452
申请日：2019-09-27
Applicant: Apple Inc.
Inventor： Moinul H. Khan , Jim C. Chou , Sorin C. Cismas
IPC: H04N21/2662 , H04N19/59 , H04W72/08 , H04L1/00
CPC classification number: H04N21/2662 , H04L1/0003 , H04L1/0009 , H04N19/59 , H04W72/085
Abstract: An electronic device includes a wireless transceiver configured to receive content primitives via a wireless communication channel. The electronic device also includes control circuitry control circuitry coupled to the wireless transceiver, and configured to perform content provisioning operations based on the received content primitives, wherein the content provisioning operations comprise generating content image data and transmitting the content image data to the wireless communication channel using the wireless transceiver. In response to a bandwidth condition of the wireless communication channel being less than a threshold, the control circuitry is configured to perform adjusted content provisioning operations that decrease an amount of content image data conveyed by the wireless transceiver to the wireless communication channel.
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公开(公告)号：US11551336B2
公开(公告)日：2023-01-10
申请号：US17006779
申请日：2020-08-28
Applicant: Apple inc.
Inventor： Jim C. Chou , Haiyan He , Yun Gong
Abstract: An electronic device may include enhancement circuitry to enhance high resolution image data to improve perceived quality of an image corresponding to the high resolution image data. The enhancement circuitry may include tone detection circuitry to determine one or more tones within the image and apply changes to the high resolution image data based on the one or more tones. The enhancement circuitry may also include example-based improvement circuitry to compare the high resolution image data to low resolution image data and apply changes to the high resolution image data based on differences between sections of the high resolution image data and sections of the low resolution image data. The enhancement circuitry may also include channel processing circuitry to apply the first and second changes to one or more channels of the high resolution image data.
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公开(公告)号：US11276143B2
公开(公告)日：2022-03-15
申请号：US17114796
申请日：2020-12-08
Applicant: Apple Inc.
Inventor： Tobias Eble , Jim C. Chou , Jian Zhou , Moinul Khan , Hariprasad Puthukkootil Rajagopal
Abstract: In various implementations, a method includes obtaining a first frame that is characterized by a first resolution associated with a first memory allocation. In some implementations, the method includes down-converting the first frame from the first resolution to a second resolution that is lower than the first resolution initially defining the first frame in order to produce a reference frame. In some implementations, the second resolution is associated with a second memory allocation that is less than a target memory allocation derived from the first memory allocation. In some implementations, the method includes storing the reference frame in a non-transitory memory. In some implementations, the method includes obtaining a second frame that is characterized by the first resolution. In some implementations, the method includes performing an error correction operation on the second frame based on the reference frame stored in the non-transitory memory.
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公开(公告)号：US20210250616A1
公开(公告)日：2021-08-12
申请号：US17252700
申请日：2019-06-27
Applicant: Apple Inc.
Inventor： Jim C. Chou , Sorin C. Cismas
IPC: H04N19/63 , H04N19/176 , H04N19/117 , H04N19/147 , H04N19/174 , H04N19/18
Abstract: A video encoding system in which pixel data is decomposed into frequency bands prior to encoding. The frequency bands are organized into blocks that are provided to a block-based encoder. The encoded frequency data is packetized and transmitted to a receiving device. On the receiving device, the encoded data is decoded to recover the frequency bands. Wavelet synthesis is then performed on the frequency bands to reconstruct the pixel data for display. The system may encode parts of frames (tiles or slices) using one or more encoders and transmit the encoded parts as they are ready. A pre-filter component may perform a lens warp on the pixel data prior to the wavelet transform.
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Patent Agency Ranking
公开(公告)号：US11064387B1
公开(公告)日：2021-07-13
申请号：US16411302
申请日：2019-05-14
Applicant: Apple Inc.
Inventor： Aleksandr M. Movshovich , Arthur Y. Zhang , Hao Pan , Holly E. Gerhard , Jim C. Chou , Moinul H. Khan , Paul V. Johnson , Sorin C. Cismas , Sreeraman Anantharaman , William W. Sprague
IPC: H04W28/06 , H04W24/08 , H04N13/398 , H04N13/344 , H04N13/194
Abstract: One exemplary implementation involves performing operations at an electronic device with one or more processors and a computer-readable storage medium. The device establishes a wireless communication link with a host device. The device receives, from the host device, a left eye frame and a right eye frame via a sequence of left eye frame transmissions and right eye frame transmissions. The device switches data transmissions schemes according to wireless commination link quality or eye gaze tracking. Adjusting transmission format based on transmission quality of the wireless communication link allows the devices to take advantage of greater bandwidth when available to save power. An additional transmission format is based on alternately transmitting left eye and right eye frames for very low bandwidth.
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公开(公告)号：US20210118090A1
公开(公告)日：2021-04-22
申请号：US17114796
申请日：2020-12-08
Applicant: Apple Inc.
Inventor： Tobias Eble , Jim C. Chou , Jian Zhou , Moinul Khan , Hariprasad Puthukkootil Rajagopal
Abstract: In various implementations, a method includes obtaining a first frame that is characterized by a first resolution associated with a first memory allocation. In some implementations, the method includes down-converting the first frame from the first resolution to a second resolution that is lower than the first resolution initially defining the first frame in order to produce a reference frame. In some implementations, the second resolution is associated with a second memory allocation that is less than a target memory allocation derived from the first memory allocation. In some implementations, the method includes storing the reference frame in a non-transitory memory. In some implementations, the method includes obtaining a second frame that is characterized by the first resolution. In some implementations, the method includes performing an error correction operation on the second frame based on the reference frame stored in the non-transitory memory.
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公开(公告)号：US10979718B2
公开(公告)日：2021-04-13
申请号：US15874655
申请日：2018-01-18
Applicant: Apple Inc.
Inventor： Jim C. Chou , Alexandros Tourapis
IPC: H04N19/159 , H04N19/154 , H04N19/59 , H04N19/86 , H04N19/46 , G06T9/00 , G06N3/04 , G06N3/08 , H04N19/102 , H04N19/117 , H04N19/189 , H04N19/132 , H04N19/90 , H04N19/136 , H04N19/172 , H04N19/436
Abstract: System and method for improving video encoding and/or video decoding. In embodiments, a video encoding pipeline includes a main encoding pipeline that compresses source image data corresponding with an image frame by processing the source image data based at least in part on encoding parameters to generate encoded image data. Additionally the video encoding pipeline includes a machine learning block communicatively coupled to the main encoding pipeline, in which the machine learning block analyzes content of the image frame by processing the source image data based at least in part on machine learning parameters implemented in the machine learning block when the machine learning block is enabled by the encoding parameters; and the video encoding pipeline adaptively adjusts the encoding parameters based at least in part on the content expected to be present in the image frame to facilitate improving encoding efficiency.
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公开(公告)号：US10891714B2
公开(公告)日：2021-01-12
申请号：US16681631
申请日：2019-11-12
Applicant: Apple Inc.
Inventor： Tobias Eble , Jim C. Chou , Jian Zhou , Moinul Khan , Hariprasad Puthukkootil Rajagopal
Abstract: In various implementations, a method includes obtaining a first frame that is characterized by a first resolution associated with a first memory allocation. In some implementations, the method includes down-converting the first frame from the first resolution to a second resolution that is lower than the first resolution initially defining the first frame in order to produce a reference frame. In some implementations, the second resolution is associated with a second memory allocation that is less than a target memory allocation derived from the first memory allocation. In some implementations, the method includes storing the reference frame in a non-transitory memory. In some implementations, the method includes obtaining a second frame that is characterized by the first resolution. In some implementations, the method includes performing an error correction operation on the second frame based on the reference frame stored in the non-transitory memory.
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公开(公告)号：US10762604B2
公开(公告)日：2020-09-01
申请号：US16053342
申请日：2018-08-02
Applicant: Apple Inc.
Inventor： Jim C. Chou , Haiyan He , Yun Gong
Abstract: An electronic device may include enhancement circuitry to enhance high resolution image data to improve perceived quality of an image corresponding to the high resolution image data. The enhancement circuitry may include tone detection circuitry to determine one or more tones within the image and apply changes to the high resolution image data based on the one or more tones. The enhancement circuitry may also include example-based improvement circuitry to compare the high resolution image data to low resolution image data and apply changes to the high resolution image data based on differences between sections of the high resolution image data and sections of the low resolution image data. The enhancement circuitry may also include channel processing circuitry to apply the first and second changes to one or more channels of the high resolution image data.
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