Bandwidth Reduction Or Expansion Patents (Class 375/240)
  • Patent number: 11457222
    Abstract: A method and an apparatus and for intra prediction of a picture block are provided, to provide a manner of predicting a current block by using spatial non-adjacent blocks or a temporal neighboring block, thereby improving coding performance. In various embodiments, a first luma intra mode set is constructed; and a bitstream is parsed to obtain a first identifier. In those embodiments, when the first identifier indicates that a luma prediction mode of the current block belongs to the first luma intra mode set, the bitstream is parsed to obtain a second identifier. The second identifier indicates that a candidate luma prediction mode in the first luma intra mode set is used as the luma prediction mode of the current block. Still in those embodiments, a luma prediction value of the current block is obtained based on the luma prediction mode of the current block.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: September 27, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Na Zhang, Jicheng An, Jianhua Zheng
  • Patent number: 11451812
    Abstract: In a method for video decoding in a decoder, prediction information of a block is decoded in a current picture from a coded video bitstream. The prediction information includes a plurality of offset indices for prediction offsets associated with an affine model in an inter prediction mode. The plurality of offset indices includes at least one of a distance offset index, an offset direction index, a delta scaling index, and a delta rotation index. Further, parameters of the affine model are determined based on the plurality of offset indices. Each of the plurality of the offset indices including a respective pre-defined mapping table that includes indexes and corresponding offset values. The parameters of the affine model are used to transform between the block and a reference block in a reference picture that has been reconstructed. At least a sample of the block is reconstructed according to the affine model.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: September 20, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Guichun Li, Xiaozhong Xu, Xiang Li, Shan Liu
  • Patent number: 11451797
    Abstract: Devices, systems and methods for applying intra-block copy (IBC) in video coding are described. In general, methods for integrating IBC with existing motion compensation algorithms for video encoding and decoding are described. In a representative aspect, a method for video encoding using IBC includes determining whether a current block of the current picture is to be encoded using a motion compensation algorithm, and encoding, based on the determining, the current block by selectively applying an intra-block copy to the current block. In a representative aspect, another method for video encoding using IBC includes determining whether a current block of the current picture is to be encoded using an intra-block copy, and encoding, based on the determining, the current block by selectively applying a motion compensation algorithm to the current block.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: September 20, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11444645
    Abstract: A receiver circuit associated with a communication device is disclosed. The receiver circuit comprises a digital data compression circuit configured to receive a plurality of digital receive signals derived from a plurality of analog receive signals respectively associated with the receiver circuit. The digital data compression circuit is further configured to compress the plurality of digital receive signals to form one or more compressed digital data signals based thereon, to be provided to an input output (I/O) interface associated therewith. In some embodiments, a compressed digital signal dimension associated with the one or more compressed digital data signals is less than a digital signal dimension associated with the plurality of digital receive signals.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: September 13, 2022
    Assignee: Apple Inc.
    Inventors: Oner Orhan, Hosein Nikopour, Peter Sagazio, Farhana Sheikh, Junyoung Nam, Shilpa Talwar
  • Patent number: 11438591
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: September 6, 2022
    Assignees: DIGITALINSIGHTS INC., KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Yongjo Ahn, Donggyu Sim, Hochan Ryu, Seanae Park, Woong Lim
  • Patent number: 11425409
    Abstract: A decoder that decodes a current block using a motion vector includes: a processor; and memory. Using the memory, the processor: derives a first candidate vector from one or more candidate vectors of one or more neighboring blocks that neighbor the current block; determines, in a first reference picture for the current block, a first adjacent region that includes a position indicated by the first candidate vector; calculates evaluation values of a plurality of candidate regions included in the first adjacent region; and determines a first motion vector of the current block, based on a first candidate region having a smallest evaluation value among the evaluation values. The first adjacent region is included in a first motion estimation region determined based on the position indicated by the first candidate vector.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: August 23, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Takashi Hashimoto, Takahiro Nishi, Tadamasa Toma, Kiyofumi Abe, Ryuichi Kanoh
  • Patent number: 11423916
    Abstract: The present invention proposes a new method for improving the performance of a real-valued filterbank based spectral envelope adjuster. By adaptively locking the gain values for adjacent channels dependent on the sign of the channels, as defined in the application, reduced aliasing is achieved. Furthermore, the grouping of the channels during gain-calculation, gives an improved energy estimate of the real valued subband signals in the filterbank.
    Type: Grant
    Filed: June 14, 2020
    Date of Patent: August 23, 2022
    Assignee: DOLBY INTERNATIONAL AB
    Inventors: Kristofer Kjoerling, Lars Villemoes
  • Patent number: 11412232
    Abstract: Devices, systems and methods for applying intra-block copy (IBC) in video coding are described. In general, methods for integrating IBC with existing motion compensation algorithms for video encoding and decoding are described. In a representative aspect, a method for video encoding using IBC includes determining whether a current block of the current picture is to be encoded using a motion compensation algorithm, and encoding, based on the determining, the current block by selectively applying an intra-block copy to the current block. In a representative aspect, another method for video encoding using IBC includes determining whether a current block of the current picture is to be encoded using an intra-block copy, and encoding, based on the determining, the current block by selectively applying a motion compensation algorithm to the current block.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: August 9, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11412219
    Abstract: An image decoding device, includes a filter unit using, as an input, a decoded signal prior to the filtering process and output a filtered decoded signal. The filter unit performs clipping processing on the decoded signal prior to the filtering process such that the absolute value of a differential value between a reference pixel value and a pixel value of the decoded signal prior to the filtering process is less than or equal to a predefined threshold value, and to generate the filtered decoded signal through the linear weighted addition of the value after the clipping processing is performed and the pixel value of the decoded signal prior to the filtering process; and a large-small relationship between the threshold value for a luma signal and the threshold value for a chroma signal are defined such that the large-small relationship is unchanged when an internal bit depth is changed.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: August 9, 2022
    Assignee: KDDI CORPORATION
    Inventors: Kyohei Unno, Kei Kawamura, Sei Naito
  • Patent number: 11405637
    Abstract: Methods and apparatuses for image encoding and image decoding are provided. The image decoding method includes: obtaining deep neural network (DNN) update permission information indicating whether one or more pieces of DNN setting information are updated; based on the DNN update permission information indicating that the one or more pieces of the DNN setting information are updated, obtaining DNN update information necessary for determining one or more pieces of the DNN setting information that are updated; determining the one or more pieces of the updated DNN setting information according to the DNN update information; and obtaining a third image by performing artificial intelligence (AI) up-scaling on a second image according to the one or more pieces of the updated DNN setting information.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: August 2, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jongseok Lee, Youngo Park, Pilkyu Park, Yumi Sohn
  • Patent number: 11405623
    Abstract: An image encoder configured to process a Bayer image generated by passing through a color filter of a Bayer pattern includes: a detector configured to read the Bayer image in units of blocks and search for, in the blocks, a target pixel to be compressed and a plurality of candidate pixels which are located adjacent to the target pixel; a flag generator configured to compare a first pixel value of the target pixel with second pixel values based on pixel values of the plurality of candidate pixels, identify a reference pixel based on a comparison result, and generate a flag indicating relative direction information between the target pixel and the reference pixel; and a compressor configured to encode information corresponding to a comparison method applied by the flag generator and the comparison result and output the encoded information as a bitstream together with the flag.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: August 2, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Wonseok Lee, Yunseok Choi
  • Patent number: 11405054
    Abstract: Methods and systems for providing dynamic dictionary-based compression and decompression are described herein. A computing device may receive, during a currently running session with a client device, a plurality of messages. The computing device may determine, based on the plurality of messages, one or more frames. The computing device may determine, based on the one or more frames, data samples. The computing device may compress the one or more frames based on a compression dictionary. The computing device may train, during the currently running session, the compression dictionary based on the determined data samples, to create a new compression dictionary. The computing device may determine, during the currently running session and based on receiving additional messages, one or more additional frames. In addition, the computing device may compress the one or more additional frames based on the new compression dictionary.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: August 2, 2022
    Assignee: Improbable Worlds Limited
    Inventor: Charles Micou
  • Patent number: 11398830
    Abstract: Methods are provided for efficiently encoding and decoding multivariate correlated data sequences for transmission over multiple channels of a network. The methods include transforming data vectors from correlated sources into vectors that comprise substantially independent and correlated components, and generating a common information vector based on the correlated components, and two private information vectors. The methods also include computing the amount of information, such as Wyner's lossy common information, in the common information vector, computing rates that lie on the Gray-Wyner rate region, and choosing compression rates based on the amount of common information. The methods may be applicable, in general, to a wide range of communications and/or storage systems and, particularly, to sensor networks and multi-user virtual environments for gaming and other applications.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: July 26, 2022
    Assignees: UNIVERSITY OF CYPRUS, VAN SCHUPPEN CONTROL RESEARCH
    Inventors: Jan H. van Schuppen, Charalambos D. Charalambous
  • Patent number: 11391813
    Abstract: The present invention concerns a method for processing radar signals in a detection system comprising at least one computing architecture comprising at least one memory to store at least one set of signal-related programs and/or data, at least one processor executing said programs to implement said method comprising at least a first step (E1) to digitize radar signals, a second step to generate spectra from the digitized signals obtained at the first step (E1), via FFT computation, said method being characterized in that FFT computation at the spectra generation step (E2) comprises at least one multi-FFT processing comprising at least: simultaneous FFT computation (E20) of different sizes with automatic selection of said sizes and real-time selection of signals (E21) in all the spectra of the different FFT computations, via a selection algorithm.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: July 19, 2022
    Assignee: AVANTIX
    Inventor: Bernard Teneze
  • Patent number: 11381821
    Abstract: A system includes code including obtaining code to obtain a first syntax element that indicates a first quantization index value; at least one second syntax element that indicates an offset value, a second quantization index value for another coefficient by combining the first quantization index value and the offset value to obtain a combined value, and modifying the combined value to be a predetermined minimum value as the second quantization index value, fourth obtaining code to obtain a quantization step size that corresponds to the second quantization index value; and determining code to determine a mode in which the coded image is to be decoded based on determining whether the first quantization index value is equal to a quantization index value associated with lossless coding, and based on determining whether the offset value is less than or equal to the quantization index value associated with the lossless coding.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: July 5, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Madhu Peringassery Krishnan, Xin Zhao, Shan Liu
  • Patent number: 11381813
    Abstract: Several systems and methods for intra-prediction estimation of video pictures are disclosed. In an embodiment, the method includes accessing four ‘N×N’ pixel blocks comprising luma-related pixels. The four ‘N×N’ pixel blocks collectively configure a ‘2N×2N’ pixel block. A first pre-determined number of candidate luma intra-prediction modes is accessed for each of the four ‘N×N’ pixel blocks. A presence of one or more luma intra-prediction modes that are common among the candidate luma intra-prediction modes of at least two of the four ‘N×N’ pixel blocks is identified. The method further includes performing, based on the identification, one of (1) selecting a principal luma intra-prediction mode for the ‘2N×2N’ pixel block and (2) limiting a partitioning size to a ‘N×N’ pixel block size for a portion of the video picture corresponding to the ‘2N×2N’ pixel block.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: July 5, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ranga Ramanujam Srinivasan, Hyung Joon Kim, Akira Osamoto
  • Patent number: 11382173
    Abstract: Disclosed is a method performed by an IRU (210) of a base station system (200), the base station system comprising the IRU (210), a BBU (230) connected to the IRU (210), and a first RH (221) connected to the IRU (210) via a packet data network (240). The first RH (221) is arranged for wireless transmission in RF of a plurality of antenna carriers to UEs (250). The method comprises receiving, from the BBU (230), a plurality of first digital representations of the plurality of antenna carriers of the first RH (221), each first digital representation representing one antenna carrier, the plurality of first digital representations being received in a baseband frequency range, frequency multiplexing the plurality of first digital representations of the plurality of antenna carriers into a second digital representation over a first bandwidth, and transmitting the second digital representation to the first RH (221).
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: July 5, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Elmar Trojer, Miguel Berg, Per-Erik Eriksson, Aldebaro Klautau, Chenguang Lu, Leonardo Ramalho, Marcos Takeda
  • Patent number: 11372579
    Abstract: Techniques for generating data sets may include: receiving an initial buffer that achieves a compression ratio responsive to compression processing using a compression algorithm, the initial buffer including first content located at a first position in the initial buffer and including second content located at a second position in the initial buffer; and generating a data set of buffers using the initial buffer. The data set may be expected to achieve a specified deduplication ratio responsive to deduplication processing and to achieve the compression ratio responsive to compression processing using the compression algorithm. Generating the data set may include generating a first plurality of buffers where each buffer of the first plurality is not a duplicate of another buffer in the first plurality, and generating a second plurality of duplicate buffers. Each duplicate buffer may be a duplicate of a buffer in the first plurality of buffers.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: June 28, 2022
    Assignee: EMC IP Holding Company LLC
    Inventors: Ivan Bassov, Istvan Gonczi, Sorin Faibish
  • Patent number: 11375211
    Abstract: Devices, systems and methods for applying intra-block copy (IBC) in video coding are described. In general, methods for integrating IBC with existing motion compensation algorithms for video encoding and decoding are described. In a representative aspect, a method for video encoding using IBC includes determining whether a current block of the current picture is to be encoded using a motion compensation algorithm, and encoding, based on the determining, the current block by selectively applying an intra-block copy to the current block. In a representative aspect, another method for video encoding using IBC includes determining whether a current block of the current picture is to be encoded using an intra-block copy, and encoding, based on the determining, the current block by selectively applying a motion compensation algorithm to the current block.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: June 28, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11368705
    Abstract: Provided are a video processing method and apparatus, a video retrieval method and apparatus, a medium, and a server. The video processing method includes: performing encoding and decoding on an original video by using the encoder and the decoder, to obtain a video feature of the original video and a hidden state of the original video at a decoding stage; reconstructing a video feature of a target video by using the reconstructor according to the hidden state of the original video at the decoding stage; obtaining a difference between the video feature of the target video and the video feature of the original video; and adjusting a processing parameter of at least one of the decoder and the reconstructor to reduce the difference between the video feature of the target video and the video feature of the original video.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: June 21, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Bairui Wang, Lin Ma, Wei Liu
  • Patent number: 11367387
    Abstract: A method and an image processing device for mura detection on a display are proposed. The method includes the following steps. A compressed DeMura table corresponding to the display panel is obtained. Decompression is performed on the compressed DeMura table to generate a decompressed DeMura table. Upsampling is performed on the decompressed DeMura table to generate a reconstructed DeMura table. Mura compensation is performed on the display panel based on the reconstructed DeMura table.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: June 21, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Wenhui Yu, Xiaoming Bu, Chih-Yuan Yang
  • Patent number: 11357436
    Abstract: A system including a medical device is provided. The medical device includes at least one sensor configured to acquire first data descriptive of a patient, first memory storing a plurality of templates, and at least one processor coupled to the at least one sensor and the first memory. The at least one processor is configured to identify a first template of the plurality of templates that is similar to the first data, to determine first difference data based on the first template and the first data, and to store the first difference data in association with the first template. The system may further include the programmable device.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: June 14, 2022
    Assignee: ZOLL Medical Corporation
    Inventors: Steven J. Szymkiewicz, Francesco Nicolo, Gary A. Freeman, Timothy F. Stever, Shane S. Volpe
  • Patent number: 11362671
    Abstract: There is provided a computer-implemented method of compressing a baseline dataset, comprising: creating a weight function that calculates a weight for each instance of each unique data elements in the baseline dataset, as a function of sequential locations of each of the instances of each respective unique data element within the baseline dataset, creating an output dataset storing a codeword for each one of the unique data elements, wherein codewords are according to a compression rule defining data elements associated with a relatively higher weight as being associated with codewords that are relatively shorter, dynamically creating the compressed dataset by sequentially iterating, for each current sequential location of the baseline dataset: determining an encoded data element mapped to the respective data element of the current sequential location according to the weight function, and adjusting the codewords of the output dataset according to the current weights to maintain the compression rule.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: June 14, 2022
    Assignees: Ariel Scientific Innovations Ltd., Bar-Ilan University
    Inventors: Dana Shapira, Shmuel Tomi Klein, Aharon Fruchtman, Yoav Gross, Shoham Saadia, Nir Nini
  • Patent number: 11356667
    Abstract: There are provided mechanisms for processing encoded image data. The method comprises receiving an encoded bitstream comprising parameter set information. The parameter set information may comprise a syntax indicator, a first coded portion comprising first coded sample information for a picture and a second coded portion comprising second coded sample information for the picture. The method further comprises, responsive to a first value of the syntax indicator, decoding the first coded sample information using a picture header syntax element from a picture header of the encoded bitstream. The method further comprises, responsive to the first value of the syntax indicator, decoding the second coded sample information using the picture header syntax element from the picture header of the encoded bitstream.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: June 7, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rickard Sjöberg, Mitra Damghanian, Martin Pettersson
  • Patent number: 11343504
    Abstract: An apparatus, a method, and a computer program performs image coding with selective loop-filtering. That is, the loop-filters which operate on samples across discontinuous face boundaries are capable of being disabled. The loop-filter operation may be deferred until all samples across a face boundary are known. Then, the loop-filter can use the correct samples according to the 3D arrangement. This may be implemented on the coding block level or at a higher level.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: May 24, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhijie Zhao, Johannes Sauer, Mathias Wien
  • Patent number: 11343541
    Abstract: A video coder that implements illumination compensation is provided. The video coder receives a first block of pixels in a first video picture to be coded as a current block, wherein the current block is associated with a motion vector that references a second block of pixels in a second video picture as a reference block. The video coder performs inter-prediction for the current block by using the motion vector to generate a set of motion-compensated pixels for the current block. The video coder modifies the set of motion-compensated pixels of the current block by applying a linear model that is computed based on neighboring samples of the reference block and of the current block. The neighboring samples are identified based on a position of the current block within a larger block.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: May 24, 2022
    Assignee: HFI INNOVATION INC.
    Inventors: Chia-Ming Tsai, Chun-Chia Chen, Chih-Wei Hsu, Ching-Yeh Chen, Tzu-Der Chuang
  • Patent number: 11336903
    Abstract: Devices, systems and methods for applying intra-block copy (IBC) in video coding are described. In general, methods for integrating IBC with existing motion compensation algorithms for video encoding and decoding are described. In a representative aspect, a method for video encoding using IBC includes determining whether a current block of the current picture is to be encoded using a motion compensation algorithm, and encoding, based on the determining, the current block by selectively applying an intra-block copy to the current block. In a representative aspect, another method for video encoding using IBC includes determining whether a current block of the current picture is to be encoded using an intra-block copy, and encoding, based on the determining, the current block by selectively applying a motion compensation algorithm to the current block.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: May 17, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11335031
    Abstract: A method and decompression unit for performing decompression to determine image element values from compressed data representing a block of image element values each comprising one or more data values relating to a respective one or more channels. An indication of an origin value for each of the channels is read from the compressed data. For each of the channels, an indication of a first number of bits for representing difference values between the data values and the origin value for the channel is read from the compressed data. For each of the one or more channels, a second number of bits is obtained, wherein representations of the difference values for each of the channels are included in the compressed data using the second number of bits for that channel. The obtained second numbers of bits for the respective channels are used to read the representations of the difference values for the image element values being decompressed from the compressed data.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: May 17, 2022
    Assignee: Imagination Technologies Limited
    Inventors: Paul Higginbottom, Mark Jackson Pulver, Seyed Ahamed
  • Patent number: 11336901
    Abstract: An intra prediction method according to the present invention comprises the following steps: performing a directional prediction using at least one of a neighboring pixel of a current block and a left upper corner pixel positioned at a left upper corner of the current block so as to obtain a first prediction value for the current block; obtaining a second prediction value for the current block using the reference sample positioned in the current block; and weighted summing the first prediction value and the second prediction value using a weighting matrix so as to obtain a final prediction value for the current block. According to the present invention, image encoding/decoding efficiency may be improved.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: May 17, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Ho Lee, Hui Yong Kim, Sung Chang Lim, Jong Ho Kim, Ha Hyun Lee, Se Yoon Jeong, Suk Hee Cho, Jin Soo Choi, Jin Woong Kim, Chie Teuk Ahn
  • Patent number: 11336913
    Abstract: Predictive coding techniques may include resampling of reference pictures, where various coding parameters are determined based on the resolution(s) or pixel format(s) of the prediction references. In a first aspect, lists of weights for use in weighted prediction are based on the resolution(s) of prediction references. In a second aspect, resampling filter parameters are selected based on the resolutions of prediction references. In a third aspect, deblocking filter parameters are based on the resolution(s) of prediction references.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: May 17, 2022
    Assignee: Apple Inc.
    Inventors: Krishnakanth Rapaka, Alexandros Tourapis, David W. Singer
  • Patent number: 11329668
    Abstract: A method performed by an encoder of a base station system, for handling a data stream for transmission over a transmission connection between a remote unit and a base unit of the base station system, the remote unit being arranged to transmit wireless signals to, and receive from, mobile stations. The method comprises quantizing a plurality of IQ samples, converting the quantized plurality of IQ samples to IQ predictions, calculating per sample a difference between the quantized plurality of IQ samples and the IQ predictions in order to create IQ prediction errors. The method further comprises quantizing the IQ predictions or the IQ prediction errors, entropy encoding the IQ prediction errors and sending the entropy encoded IQ prediction errors over the transmission connection to a decoder of the base station system. The method can be performed by a decoder.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: May 10, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Miguel Berg, Chenguang Lu, Per Ola Börjesson, Daniel Cederholm, Elmar Trojer
  • Patent number: 11323990
    Abstract: An embodiment of this application provides a method for transmission in a time interval. The time interval includes one or more first time units and one or more second time units. The one or more first time units are used to transmit a first-type signal, and a quantity of first time units is associated with a quantity of first-type signals. The one or more second time units are used to transmit a second-type signal. In the method, a receiving node may obtain time unit information, where the time unit information is used to obtain a location of the one or more second time units, that is, determine a time domain location of the second-type time-frequency resource in the time interval. Then, the receiving node may receive or send the second-type signal on the second-type time-frequency resource.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: May 3, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Fan Wang, Zhenfei Tang, Yi Qin
  • Patent number: 11297331
    Abstract: A method and apparatus for signaling and receiving a video signal for processing is disclosed. Methods for determining a most probable mode for predicting a current prediction block are provided as well as new methods for grouping intra prediction modes into prediction groups. Methods for predicting a prediction block of video data as well as signaling intra prediction modes are also provided.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: April 5, 2022
    Assignee: LG Electronics Inc.
    Inventors: Jaehyun Lim, Jungsun Kim, Seungwook Park, Jaewon Sung, Byeongmoon Jeon, Joonyoung Park, Yongjoon Jeon, Younghee Choi
  • Patent number: 11284091
    Abstract: A system comprises an encoder configured to compress attribute information and/or spatial for a point cloud and/or a decoder configured to decompress compressed attribute and/or spatial information for the point cloud. To compress the attribute and/or spatial information, the encoder is configured to convert a point cloud into an image based representation. Also, the decoder is configured to generate a decompressed point cloud based on an image based representation of a point cloud. The encoder generates an occupancy map and may adjust a size or placement of a patch in the occupancy map to reduce or eliminate redundant points caused by down-sampling and up-sampling of the occupancy map.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: March 22, 2022
    Assignee: Apple Inc.
    Inventors: Alexandros Tourapis, Khaled Mammou, Jungsun Kim
  • Patent number: 11284095
    Abstract: The precision of up-sampling operations in a layered coding system is preserved when operating on video data with high bit-depth. In response to bit-depth requirements of the video coding or decoding system, scaling and rounding parameters are determined for a separable up-scaling filter. Input data are first filtered across a first spatial direction using a first rounding parameter to generate first up-sampled data. First intermediate data are generated by scaling the first up-sampled data using a first shift parameter. The intermediate data are then filtered across a second spatial direction using a second rounding parameter to generate second up-sampled data. Second intermediate data are generated by scaling the second up-sampled data using a second shift parameter. Final up-sampled data may be generated by clipping the second intermediate data.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: March 22, 2022
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Peng Yin, Taoran Lu, Tao Chen
  • Patent number: 11269757
    Abstract: The present disclosure relates to software development and, more specifically, to continuous integration (CI) based software development systems, methods, and computer program products in which a system-under-test (SUT) is populated with production data that has been filtered or transformed, or both. In accordance with this approach, the filtered or transformed production test data can be automatically generated and seamlessly integrated into a continuous integration process. In some examples, the resulting filtered or transformed test data closely reflects real production data while, at the same time, consuming less data storage space and protecting an individual's sensitive information.
    Type: Grant
    Filed: February 21, 2021
    Date of Patent: March 8, 2022
    Assignee: OWNBACKUP LTD.
    Inventors: Roy Emek, Ariel Berkman
  • Patent number: 11271980
    Abstract: A method, a device, and a non-transitory storage medium having instructions to receive a request to begin an adaptive streaming session; receive, in response to receiving the request, context information, wherein the context information pertains to a link state between the device and another device that provides a streaming media; calculate, based on the context information, values for dynamic parameters pertaining to the adaptive streaming session, wherein the dynamic parameters pertain to buffer management and codec selection; and provide, based on the values for the dynamic parameters, the streaming media to a user.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: March 8, 2022
    Assignee: Sony Group Corporation
    Inventors: Peter C. Karlsson, Martin Danielsson, Anders Isberg, Rickard Ljung
  • Patent number: 11265571
    Abstract: A video encoding apparatus is a video encoding apparatus for subjecting a video image to motion compensated prediction coding, comprising an acquisition module to acquire available blocks of blocks having motion vectors from encoded blocks adjacent to a to-be-encoded block and number of the available blocks, an acquisition/selection module to select one selection block from the encoded available blocks, a selection information encoder to encode selection information specifying the selection block using a code table corresponding to the number of available blocks, and an image encoder to subject the to-be-encoded block to motion compensated prediction coding using a motion vector of the selection block.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: March 1, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Saori Asaka, Takeshi Chujoh, Akiyuki Tanizawa, Goki Yasuda, Naofumi Wada, Takashi Watanabe
  • Patent number: 11263786
    Abstract: When decoding a data array that has been encoded using a tree structure representation, the encoded tree representation of the array of data elements comprising a set of tree node data representing the respective node values for the different nodes of the tree and a set of bit count data indicating the number of bits that has been used for signalling the node values for each non-root node in the tree a data value for a set of one or more data elements associated with a first node of the tree structure is determined by determining an initial data value for the first node using the stored tree node data, and modifying the initial data value using a modifier value based on the number of bits used for signalling the node values for the child nodes of the first node in at least the next level of the tree.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: March 1, 2022
    Assignee: Arm Limited
    Inventor: Jian Wang
  • Patent number: 11259032
    Abstract: Devices, systems and methods for applying intra-block copy (IBC) in video coding are described. In general, methods for integrating IBC with existing motion compensation algorithms for video encoding and decoding are described. In a representative aspect, a method for video encoding using IBC includes determining whether a current block of the current picture is to be encoded using a motion compensation algorithm, and encoding, based on the determining, the current block by selectively applying an intra-block copy to the current block. In a representative aspect, another method for video encoding using IBC includes determining whether a current block of the current picture is to be encoded using an intra-block copy, and encoding, based on the determining, the current block by selectively applying a motion compensation algorithm to the current block.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: February 22, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11259030
    Abstract: The present invention relates to an intra prediction scheme among video coding techniques and, more particularly, relates to a video decoding method and apparatus for diving a block into a plurality of sub-blocks when intra prediction is performed and sequentially performing infra prediction on each of the sub-blocks. The decoding method performed by a video decoding apparatus includes determining whether to perform sub-block-based intra prediction on a current coding unit, dividing the current coding unit into a plurality of sub-blocks, performing intra prediction on each of the sub-blocks when a result of determination of whether to perform sub-block-based intra prediction has a value of “true”, and directly performing block-based intra prediction on the current coding unit without dividing the current coding unit when the result of the determination has a value of “false”.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: February 22, 2022
    Assignee: Intellectual Discovery Co., Ltd.
    Inventors: Yong Jo Ahn, Ho Chan Ryu
  • Patent number: 11245927
    Abstract: A machine-learned image compression model includes a first encoder configured to generate a first image code based at least in part on first image data. The first encoder includes a first series of convolutional layers configured to generate a first series of respective feature maps based at least in part on the first image. A second encoder is configured to generate a second image code based at least in part on second image data and includes a second series of convolutional layers configured to generate a second series of respective feature maps based at least in part on the second image and disparity-warped feature data. Respective parametric skip functions associated convolutional layers of the second series are configured to generate disparity-warped feature data based at least in part on disparity associated with the first series of respective feature maps and the second series of respective feature maps.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: February 8, 2022
    Assignee: UATC, LLC
    Inventors: Jerry Junkai Liu, Shenlong Wang, Raquel Urtasun
  • Patent number: 11228354
    Abstract: A system, a method, and a computer program product for transmission of data using a multiple input, multiple output communications system with hybrid beamforming in a layer 1 split architecture. A first portion of a signal is processed at a first portion of a physical layer located in a first portion of a base station. A frequency domain compression with statistical multiplexing is applied to the processed first portion of the signal. A compressed first portion of the signal is generated. The compressed first portion of the signal and a second portion of the signal are transmitted to a second portion of the physical layer located in a second portion of the base station.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: January 18, 2022
    Assignee: AltioStar Networks, Inc.
    Inventor: Jung Ah Lee
  • Patent number: 11228328
    Abstract: A direct digital radio having a high-speed RF front end in communication with an antenna, and a radio subsystem that can be configured to form a programmable multi-standard transceiver system. The high-speed RF front including RF inputs configured to receive a plurality of radio frequencies (e.g., frequencies between 400 MHz to 7.2 GHz, millimeter wave frequency signals, etc.) and wideband low noise amplifiers provides amplified signals to RF data converters, analog interfaces, digital interfaces, component interfaces, etc. The programmable multi-standard transceiver is operable in frequencies compatible with multiple networks such as private LTE and 5G networks as well as other wireless IoT standards and WiFi in multi-standard network access equipment.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: January 18, 2022
    Assignee: SiTune Corporation
    Inventors: Marzieh Veyseh, Vahid M Toosi, Saeid Mehrmanesh
  • Patent number: 11223811
    Abstract: A transcoder resource retrieves content stored in a repository. The stored content can be encoded in accordance with a first encoding format. The transcoder resource transcodes the retrieved content into a second encoding format. To increase available capacity, the transcoder resource stores the content in the second encoding format as a replacement to the content encoded according to the first encoding format. The second encoding format can support a higher compression ratio than the first encoding format. Additionally, the transcoding can be performed as one of multiple tasks executed in parallel. In such an instance, during parallel processing, a content management resource interleaves execution of the main processing task and the background task of transcoding the content into the second encoding format. The transcoding task can be assigned a lower execution priority than one or more other tasks executed in parallel.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: January 11, 2022
    Assignee: Time Warner Cable Enterprises LLC
    Inventors: Albert Straub, Edward P. Galt, III
  • Patent number: 11212030
    Abstract: A method for receiving a WLAN data transmission includes receiving, at a first WLAN device from a remote WLAN device, a WLAN transmission including first bits that are modulated and encoded using a first MCS associated with a first modulation scheme and a first FEC coding rate. First soft-decoding metrics are computed for the first bits. A WLAN retransmission corresponding to the WLAN transmission is received. The WLAN retransmission includes second bits that are modulated and encoded using a second MCS associated with a second modulation scheme and a second FEC coding rate, the second MCS having better error performance than the first MCS. Second soft-decoding metrics are computed for the second bits. The first soft-decoding metrics and the second soft-decoding metrics are combined, to produce combined soft-decoding metrics. Data carried by the WLAN transmission is reconstructed by applying FEC decoding to the combined soft-decoding metrics.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: December 28, 2021
    Assignee: MARVELL ASIA PTE LTD
    Inventors: Yan Zhang, Hongyuan Zhang
  • Patent number: 11202100
    Abstract: A device for decoding video data performs coefficient coding for a residual block of video data encoded using a transform skip mode by determining values for a first neighboring coefficient and a second neighboring coefficient and determining a context offset for the coefficient currently being decoded based on the value for the first neighboring coefficient and the value for the second neighboring coefficient. Performing coefficient coding includes, for example, performing sign coding, level mapping, and context derivation. The device performs coefficient coding to determine the residual block and adds the residual block to a predicted block to determine a reconstructed block.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: December 14, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Marta Karczewicz, Muhammed Zeyd Coban, Hongtao Wang
  • Patent number: 11202068
    Abstract: Methods and apparatus for cross-colour loop-filter processing of reconstructed video are disclosed. According to one method, a sum of filter coefficients for each of one or more candidate cross-colour loop filters is constrained to be a fixed value. One or more syntax elements indicating a value related to a total number of candidate filters in a filter set are signalled or parsed in the APS (Adaptation Parameter Set).
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: December 14, 2021
    Assignee: MEDIATEK INC.
    Inventors: Ching-Yeh Chen, Olena Chubach, Tzu-Der Chuang, Chih-Wei Hsu, Yu-Wen Huang
  • Patent number: 11197215
    Abstract: Systems, methods and computer software are disclosed for providing core High Availability (HA) for a wireless network. In one embodiment, a method is disclosed, comprising: providing a first node, a second node and a third node; allocating a set of locally generated Tunnel Endpoint Identifiers (TEIDs) for UEs anchored on the second node; detecting, by a first node, a second node having a connectivity issue; and migrating a User Equipment (UE) connected to the second node to a third node which is accessible; using the set of locally generated TEIDs to identify the UE migration.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: December 7, 2021
    Assignee: Parallel Wireless, Inc.
    Inventor: Manisha Sameer Gambhir-Parekh
  • Patent number: 11187810
    Abstract: Methods and apparatus for tracking a plurality of satellite signals received by a Global Navigation Satellite System, GNSS, receiver from a plurality of satellites, each satellite signal being processed in a different one of a plurality of channels (100a-k; 300a-k) of the GNSS receiver. At least one summing unit (116, 120; 356, 358, 360; 366) is configured to sum corresponding correlation values from each of a plurality of sets of correlation values, each set from one of the plurality of channels, to determine a plurality of summed correlation values, wherein each correlation value in a set represents a correlation between a signal derived from a corresponding one of the plurality of received satellite signals, and one of a plurality of replica signals each based on a known position and/or velocity of the GNSS receiver and one of a plurality of estimated receiver timing parameters.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: November 30, 2021
    Assignee: u-blox AG
    Inventor: Zhenlan Cheng