公开(公告)号：US11252211B2

公开(公告)日：2022-02-15

申请号：US16740344

申请日：2020-01-10

Applicant: NETFLIX, INC.

Inventor： David Fullagar ,  Kenneth W. Florance ,  Ian Van Hoven

IPC: H04L29/06 ,  G06F16/958 ,  G06F16/957 ,  H04N21/218 ,  H04N21/222 ,  H04N21/237 ,  H04N21/25 ,  H04N21/258 ,  H04N21/61 ,  H04L29/08 ,  G06F15/167 ,  G06Q10/00

Abstract: One embodiment of the present invention sets forth a method for updating content stored in a cache residing at an internet service provider (ISP) location that includes receiving popularity data associated with a first plurality of content assets, where the popularity data indicate the popularity of each content asset in the first plurality of content assets across a user base that spans multiple geographic regions, generating a manifest that includes a second plurality of content assets based on the popularity data and a geographic location associated with the cache, where each content asset included in the manifest is determined to be popular among users proximate to the geographic location or users with preferences similar to users proximate to the geographic location, and transmitting the manifest to the cache, where the cache is configured to update one or more content assets stored in the cache based on the manifest.

公开(公告)号：US11238888B2

公开(公告)日：2022-02-01

申请号：US16732142

申请日：2019-12-31

Applicant: Netflix, Inc.

Inventor： Yadong Wang ,  Shilpa Jois Rao ,  Murthy Parthasarathi ,  Kyle Tacke

IPC: G10L25/51 ,  G10L15/00 ,  G10L15/22 ,  G10L25/81 ,  G10L25/84

Abstract: The disclosed computer-implemented method may include obtaining an audio sample from a content source, inputting the obtained audio sample into a trained machine learning model, obtaining the output of the trained machine learning model, wherein the output is a profile of an environment in which the input audio sample was recorded, obtaining an acoustic impulse response corresponding to the profile of the environment in which the input audio sample was recorded, obtaining a second audio sample, processing the obtained acoustic impulse response with the second audio sample, and inserting a result of processing the obtained acoustic impulse response and the second audio sample into an audio track. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US11223675B2

公开(公告)日：2022-01-11

申请号：US16831670

申请日：2020-03-26

Applicant: NETFLIX INC.

Inventor： Jeffrey Davis ,  Andrew Berglund ,  David Pfitzner

IPC: G06F15/16 ,  H04L29/08 ,  H04L12/26 ,  G06F16/13 ,  H04L12/743

Abstract: One embodiment of the present invention sets forth a technique for generating one or more hash data structures. The technique includes generating a hash data structure having entries that correspond to a plurality of content servers, and, for each file included in a first plurality of files, allocating the file to one or more content servers included in the plurality of content servers by comparing a hash value associated with the file to one or more entries included in the entries. The technique further includes comparing a network bandwidth utilization of a first content server to a network bandwidth utilization associated with one or more other content servers included in the plurality of content servers to generate a result, and modifying a first number of entries associated with the first content server and included in the entries based on the result to generate a biased hash data structure.

公开(公告)号：US20210406116A1

公开(公告)日：2021-12-30

申请号：US17471033

申请日：2021-09-09

Applicant: NETFLIX, INC.

Inventor： Vinay CHELLA ,  Joseph LYNCH ,  Ajay UPADHYAY

IPC: G06F11/07 ,  G06F16/27 ,  G06F9/48

Abstract: Various embodiments of the invention disclosed herein provide techniques for performing distributed anti-entropy repair procedures across a plurality of nodes in a distributed database network. A node included in a plurality of nodes within the distributed database network determines, before all other nodes included in the plurality of nodes, that a first anti-entropy repair procedure has ended. The node determines that a second anti-entropy repair procedure is ready to begin. The node generates a schedule for executing one or more operations associated with the second anti-entropy repair procedure. The node writes the schedule to a shared repair schedule data structure to initiate the second anti-entropy repair procedure across multiple nodes included in the plurality of nodes. Each of the nodes included in the plurality of nodes then performs a node repair based on the schedule.

公开(公告)号：US11212208B2

公开(公告)日：2021-12-28

申请号：US16701065

申请日：2019-12-02

Applicant: NETFLIX, INC.

Inventor： Roy Rapoport ,  Brent Pitman ,  Brian Harrington ,  Daniel Muino

IPC: H04L12/26 ,  G06F11/07 ,  G06F11/00 ,  G06F11/32 ,  G06F11/34 ,  H04L12/24

Abstract: Techniques for adaptive metric collection, metric storage, and alert thresholds are described. In an approach, a metric collector computer processes metrics as a collection of key/value pairs. The key/value pairs represent the dimensionality of the metrics and allows for semantic queries on the metrics based on keys. In an approach, a storage controller computer maintains a storage system with multiple storage tiers ranked by speed of access. The storage computer stores policy data that specifies the rules by which metric records are stored across the multiple storage tiers. Periodically, the storage computer moves database records to higher or lower tiers based on the policy data. In an approach, a metric collector in response to receiving a new metric, generates a predicted metric value based on previously recorded metric values and measures the deviation from the new metric value to determine whether an alert is appropriate.

公开(公告)号：US11196790B2

公开(公告)日：2021-12-07

申请号：US17134069

申请日：2020-12-24

Applicant: NETFLIX, INC.

Inventor： Ioannis Katsavounidis

IPC: G06F15/16 ,  H04L29/06 ,  H04N19/154 ,  H04N19/176 ,  H04N19/59 ,  H04N19/87 ,  H04N21/238 ,  H04N21/2662

Abstract: In various embodiments, a subsequence-based encoding application generates a convex hull of subsequence encode points based on multiple encoding points and a first subsequence included in a set of subsequences that are associated with a media title. The subsequence-based encoding application then generates a first encode list that includes multiple subsequence encode points based on the first convex hull. Notably, each subsequence encode point included in the first encode list is associated with a different subsequence. The subsequence-based encoding application selects a first subsequence encode point included in the first encode list based on a first variability constraint that is associated with a media metric. The subsequence-based encoding application then replaces the first subsequence encode point included in the first encode list with a second subsequence encode point to generate a second encode list. Finally, the subsequence-based encoding application generates an encoded media sequence based on the second encode list.

公开(公告)号：US11184621B2

公开(公告)日：2021-11-23

申请号：US15902971

申请日：2018-02-22

Applicant: NETFLIX, INC.

Inventor： Ioannis Katsavounidis

IPC: G06K9/00 ,  H04N19/147 ,  H04N19/172 ,  H04N19/192 ,  H04N19/124 ,  H04N21/2343 ,  H04N21/238 ,  H04N19/179 ,  H04N21/845 ,  H04N21/234 ,  H04L29/06 ,  H04N19/177 ,  G11B20/00 ,  G11B27/30 ,  G11B27/34 ,  H04N19/196 ,  H04N19/59 ,  H04N19/126 ,  H04N19/15 ,  H04N19/40

Abstract: In various embodiments, an encoding optimization application encodes a source video sequence. The encoding optimization application partitions a source video sequence associated with a media title into multiple subsequences that include a first subsequence and a second subsequence. The encoding optimization application then generates a first encoded subsequence based on the first subsequence and a first resolution. The encoding optimization application generates a second encoded subsequence based on the second subsequence and a second resolution. Notably, the second resolution is higher than the first resolution. The encoding optimization application then aggregates the first encoded subsequence and the second encoded subsequence to generate an encoded video sequence. At least a portion of the encoded video sequence is subsequently streamed to an endpoint device during a playback of the media title.

公开(公告)号：US11166034B2

公开(公告)日：2021-11-02

申请号：US16543476

申请日：2019-08-16

Applicant: NETFLIX, INC.

Inventor： Ioannis Katsavounidis ,  Liwei Guo

IPC: H04N19/196 ,  H04N19/85

Abstract: In various embodiments, an encoder comparison application compares the performance of different configured encoders. In operation, the encoder comparison application generates a first global convex hull of video encode points based on a first configured encoder and a set of subsequences included in a source video sequence. Each video encode point is associated with a different encoded version of the source video sequence. The encoder comparison application also generates a second global convex hull of video encode points based on a second configured encoder and the subsequences. Subsequently, the encoder configuration application computes a performance value for an encoding comparison metric based on the first global convex hull and the second global convex hull. Notably, the first performance value estimates a difference in performance between the first configured encoder and the second configured encoder.

公开(公告)号：US11144707B2

公开(公告)日：2021-10-12

申请号：US16430125

申请日：2019-06-03

Applicant: NETFLIX, INC.

Inventor： Pedro Navarro

IPC: G06F17/00 ,  G06F40/109 ,  G06F40/131 ,  G06F8/65

Abstract: Various embodiments disclose a computer-implemented method that includes receiving, subsequent to a first font file being stored in read-only memory, a first font patch file for storage in read-write memory, where each of the first font file and the first font patch file is associated with a first font and includes a different set of glyphs used to render characters for display, and a first set of glyphs included in the first font file is static, determining that a first text string includes a first set of characters to be rendered, retrieving, from at least one of the first font file and the first font patch file depending on whether a first glyph is included in the first set of glyphs, the first glyph corresponding to a first character included in the first set of characters, and rendering a portion of the first text string using the first glyph.

公开(公告)号：US20210314274A1

公开(公告)日：2021-10-07

申请号：US17352070

申请日：2021-06-18

Applicant: Netflix, Inc.

Inventor： Lara Deek ,  Ishaan Shastri ,  Mohit Vora

IPC: H04L12/911 ,  H04L12/803 ,  H04L29/06 ,  H04L29/08 ,  H04N21/238 ,  H04N21/2665 ,  H04N21/472

Abstract: The disclosed computer-implemented method includes accessing information related to a playback session in which at least a portion of requested multimedia content is streamed over a network to a client electronic device. The method further includes accessing network topology information for the network to identify which route through the network was used to provide the requested multimedia content during the playback session, including indicating which end node was used to provide the multimedia content. Still further, the method includes accessing network steering factors that indicate why the requested multimedia content was steered through the identified network route, determining, based on the network steering factors, which end node would have been more suited to providing the requested multimedia content for the playback session, and then transferring the requested multimedia content to the determined end node for provisioning during subsequent playback sessions. Various other methods, systems, and computer-readable media are also disclosed.