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公开(公告)号：US12165013B1
公开(公告)日：2024-12-10
申请号：US17937413
申请日：2022-09-30
Applicant: Amazon Technologies, Inc.
Inventor： Christopher Chamberland , Luis Goncalves , Prasahnt Sivarajah , Eric Christopher Peterson , Sebastian Johannes Grimberg
Abstract: Techniques for training local decoders for use in a local and global decoding scheme for quantum error correction of circuit-level noise within quantum surface codes such that the decoding schemes have fast decoding throughout and low latency times for quantum algorithms are disclosed. The local decoders may have a neural network architecture and may be trained using training data sets comprising simulated rounds of syndrome measurements for respective simulated quantum surface codes in addition to information such as syndrome differences, qubit placements, and temporal boundaries within the simulated rounds of syndrome measurements in order to train the local decoders for arbitrarily sized quantum surface codes and arbitrary numbers of rounds of syndrome measurements. Following a local decoding stage in which a large number of data errors have been corrected by a local decoder, error correction for remaining errors may continue with a more efficient global decoding stage.
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公开(公告)号：US12094063B2
公开(公告)日：2024-09-17
申请号：US17932019
申请日：2022-09-14
Applicant: Snap Inc.
Inventor： Andrew James McPhee , Samuel Edward Hare , Peicheng Yu , Robert Cornelius Murphy , Dhritiman Sagar
IPC: G06T19/00 , A63F13/211 , G06F3/01 , G06F3/03 , G06F3/0346 , G06F3/038 , G06F11/08 , G06T7/246 , G06T15/20
CPC classification number: G06T19/003 , A63F13/211 , G06F3/011 , G06F3/0304 , G06F3/0346 , G06F3/038 , G06F11/08 , G06T7/246 , G06T15/20 , G06T19/006 , G06F2203/0381 , G06F2203/0382
Abstract: A redundant tracking system comprising multiple redundant tracking sub-systems, enabling seamless transitions between such tracking sub-systems, provides a solution to this problem by merging multiple tracking approaches into a single tracking system. This system is able to combine tracking objects with six degrees of freedom (6 DoF) and 3 DoF through combining and transitioning between multiple tracking systems based on the availability of tracking indicia tracked by the tracking systems. Thus, as the indicia tracked by any one tracking system becomes unavailable, the redundant tracking system seamlessly switches between tracking in 6 DoF and 3 DoF thereby providing the user with an uninterrupted experience.
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公开(公告)号：US12019528B2
公开(公告)日：2024-06-25
申请号：US17410290
申请日：2021-08-24
Applicant: SOFTIRON LIMITED
Inventor： Robert Drury , Andrew McNeil , Harry Richardson , Stephen Hardwick , Phillip Edward Straw , Alan Ott
IPC: G06F11/20 , G06F9/4401 , G06F11/07 , G06F11/08 , G06F11/30
CPC classification number: G06F11/2025 , G06F9/4416 , G06F9/4418 , G06F11/0793 , G06F11/08 , G06F11/2005 , G06F11/2028 , G06F11/2033 , G06F11/2041 , G06F11/2048 , G06F11/3055 , G06F2201/805
Abstract: An apparatus includes a communications interface and a management server. The management server is configured to access servers through the interface, determine that additional resources are needed for execution by a system, and determine that one of the servers is in a standby mode. In the standby mode, the server is powered down and a baseboard management controller (BMC) therein is only powered through a connection from the apparatus or another server of the network. The management server is configured to determine that additional resources for execution by the system from the server are to be activated and cause a wake-up signal to be sent to the BMC, wherein the wake-up signal is configured to cause the BMC to wake and provision the operating environment of the server.
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4.发明公开公开(公告)号：US20240007712A1
公开(公告)日：2024-01-04
申请号：US18344792
申请日：2023-06-29
Applicant: Verance Corporation
Inventor： Patrick George Downes , Rade Petrovic
IPC: H04N21/472 , G06F11/08 , H04N21/8358 , H04N21/4147
CPC classification number: H04N21/47217 , G06F11/08 , H04N21/8358 , H04N21/4147
Abstract: A system and method for controlling a media player for replacement content, such as dynamic ad insertion. The system tracks video watermarks from a content stream, where the input content timeline is being modified by a user exercising the transport controls of a digital video recorder (DVR). A Detector Engine receives decoded video frames and extracts a time-offset field, a VP1 payload, and a Cyclic Redundance Check (CRC) field in each video frame. A Content Timeline Tracker monitors and analyzes the output of the Detector Engine to produce a piecewise linear approximation of the content timeline, wherein playback rate changes by a user in an upstream device can be tracked. This enables the playback of auxiliary content which is synchronized to a watermark timeline recovered from the received content in cases where the recovered timeline has a non-linear mapping to real time. When the estimated speed is changing due to user-controlled trick play of recorded content, estimated speed deviates from the user intended speed profile because of imperfect playback of the media player. The system includes additional filtering of estimated speed to produce a Boolean updated speed which is asserted sparsely at estimated control segment endpoints in an attempt to delineate constant slope (constant speed) control segments.
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公开(公告)号：US11847019B2
公开(公告)日：2023-12-19
申请号：US17442830
申请日：2020-10-23
CPC classification number: G06F11/085 , G06F11/004 , H03M13/13
Abstract: The embodiments of the present application provide a polar code construction method and apparatus, which relate to the field of communications technology. The method comprises: obtaining a polar weight spectrum for each polarized channel; calculating an upper bound of error probability of each polarized channel based on the obtained polar weight spectrum, distribution probability density of a fading factor of a fading channel, and a signal-to-noise ratio of the fading channel; taking a logarithm of the calculated upper bound of the error probability for each polarized channel and obtaining a reliability metric of the polarized channel based on the taken logarithm, wherein the smaller the metric value is, the higher the reliability of the polarized channel is; sorting all polarized channels in an ascending order of the reliability metric and selecting part of the polarized channels having a lowest reliability metric for transmitting information bits and the remaining polarized channels for transmitting frozen bits. According to the embodiments of the present application, performing polar code construction under the condition of a fading channel can improve the efficiency of polar code construction.
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Patent Agency Ranking
公开(公告)号：US11651265B2
公开(公告)日：2023-05-16
申请号：US17401798
申请日：2021-08-13
Applicant: Google LLC
Inventor： Julian Shaw Kelly
CPC classification number: G06N10/00 , G06F11/0751 , G06F11/0787 , G06F11/08 , G06N99/00 , H01L29/66977 , H01L39/025
Abstract: Methods, systems, and apparatus for parallel optimization of continuously running quantum error correction by closed-loop feedback. In one aspect, a method includes continuously and effectively optimizing qubit performance in-situ whilst an error correction operation on the quantum system is running. The method directly monitors the output from error detection and provides this information as feedback to calibrate the quantum gates associated with the quantum system. In some implementations, the physical qubits are spatially partitioned into one or more independent hardware patterns, where the errors attributable to each hardware pattern are non-overlapping. The one or more different sets of hardware patterns are then temporarily interleaved such that all physical qubits and operations are optimized. The method allows for the optimization of each section of a hardware pattern to be performed individually and in parallel, and can result is O(1) scaling.
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公开(公告)号：US11513888B2
公开(公告)日：2022-11-29
申请号：US16543690
申请日：2019-08-19
Applicant: SK hynix Inc.
Inventor： Dae Sung Kim , Bo Seok Jeong , Soon Young Kang
Abstract: A data processing device includes a plurality of variable nodes configured to receive and store a plurality of target bits; a plurality of check nodes each configured to receive stored target bits from one or more corresponding variable nodes of the plurality of variable nodes, check whether received target bits have an error bit, and transmit a check result to the corresponding variable nodes; and a group state value manager configured to determine group state values of variable node groups into which the plurality of variable nodes are grouped.
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公开(公告)号：US20220312081A1
公开(公告)日：2022-09-29
申请号：US17667464
申请日：2022-02-08
Applicant: Verance Corporation
Inventor： Patrick George Downes , Rade Petrovic
IPC: H04N21/472 , H04N21/4147 , H04N21/8358 , G06F11/08
Abstract: A system and method for controlling a media player for replacement content, such as dynamic ad insertion. The system tracks video watermarks from a content stream, where the input content timeline is being modified by a user exercising the transport controls of a digital video recorder (DVR). A Detector Engine receives decoded video frames and extracts a time-offset field, a VP1 payload, and a Cyclic Redundance Check (CRC) field in each video frame. A Content Timeline Tracker monitors and analyzes the output of the Detector Engine to produce a piecewise linear approximation of the content timeline, wherein playback rate changes by a user in an upstream device can be tracked. This enables the playback of auxiliary content which is synchronized to a watermark timeline recovered from the received content in cases where the recovered timeline has a non-linear mapping to real time. When the estimated speed is changing due to user-controlled trick play of recorded content, estimated speed deviates from the user intended speed profile because of imperfect playback of the media player. The system includes additional filtering of estimated speed to produce a Boolean updated speed which is asserted sparsely at estimated control segment endpoints in an attempt to delineate constant slope (constant speed) control segments.
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公开(公告)号：US20220237076A1
公开(公告)日：2022-07-28
申请号：US17442830
申请日：2020-10-23
Abstract: The embodiments of the present application provide a polar code construction method and apparatus, which relate to the field of communications technology. The method comprises: obtaining a polar weight spectrum for each polarized channel; calculating an upper bound of error probability of each polarized channel based on the obtained polar weight spectrum, distribution probability density of a fading factor of a fading channel, and a signal-to-noise ratio of the fading channel; taking a logarithm of the calculated upper bound of the error probability for each polarized channel and obtaining a reliability metric of the polarized channel based on the taken logarithm, wherein the smaller the metric value is, the higher the reliability of the polarized channel is; sorting all polarized channels in an ascending order of the reliability metric and selecting part of the polarized channels having a lowest reliability metric for transmitting information bits and the remaining polarized channels for transmitting frozen bits. According to the embodiments of the present application, performing polar code construction under the condition of a fading channel can improve the efficiency of polar code construction.
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公开(公告)号：US11294577B2
公开(公告)日：2022-04-05
申请号：US16831716
申请日：2020-03-26
Applicant: UNITED MICROELECTRONICS CORP.
Inventor： Hsiao-Hua Lu , Hsin-Pang Lu
Abstract: A non-volatile memory includes a plurality of data storage units arranged in an array, a plurality of redundant data storage units arranged in at least one row and a plurality of redundant address storage units arranged in at least one row. A storage size of each of the data storage units is word. Each of the data storage units is addressable by a row address and a column address. One of the redundant data storage units in a first column is configured to substitute for one of the data storage units in a second column. One of the redundant address storage units in a third column is configured to record the row address representative of the substituted one of the data storage units.
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