公开(公告)号：US20220408056A1

公开(公告)日：2022-12-22

申请号：US17821746

申请日：2022-08-23

Applicant: Netflix, Inc.

Inventor： Weiguo Zheng ,  Rex Yik Chun Ching

IPC: H04N7/01 ,  G09G5/00 ,  G09G5/18

Abstract: The disclosed method includes accessing video content encoded at a specified frame rate, and determining a refresh rate for an electronic display on which the video content is to be presented. The method next includes specifying a time interval for the video content over which frame rate conversion is to be applied to synchronize the video content frame rate with the electronic display refresh rate. The method also includes presenting the video content on the electronic display where the playback speed is adjusted for a first part of the interval. At this adjusted speed, the interval is played back using original video frames and multiple frame duplications. The presenting also adjusts playback speed of a second part of the interval. At the adjusted speed, the interval is played back using the original frames and a different number of frame duplications. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US11533297B2

公开(公告)日：2022-12-20

申请号：US14920657

申请日：2015-10-22

Applicant: NETFLIX, INC

Inventor： James Mitchell Zollinger ,  Wesley Miaw

IPC: H04L9/40 ,  H04L9/32

Abstract: One embodiment of the present invention includes a server machine configured to establish a secure communication channel with a client machine via renewable tokens. The server machine receives a plurality of messages from a client machine over a secure communication channel, where the plurality of messages includes a first message that includes at least two of user authentication data, entity authentication data, first key exchange data, and encrypted message data. The server machine transmits, to the client machine, a second message that includes a master token comprising second key exchange data associated with the first key exchange data and at least one of a renewal time and an expiration time.

公开(公告)号：US20220334951A1

公开(公告)日：2022-10-20

申请号：US17853648

申请日：2022-06-29

Applicant: Netflix, Inc.

Inventor： David GEVORKYAN ,  Mehmet YILMAZ ,  Ajinkya MORE ,  Justin Derrick BASILICO ,  Prasanna PADMANABHAN ,  Vivek KAUSHAL ,  Gaurav AGRAWA ,  Richard WELLINGTON

IPC: G06F11/36 ,  G06F16/22

Abstract: The disclosed computer-implemented method may include accessing updated data structures that are to be included in a user interface functionality test, where the updated data structures contribute to a user interface. The method may also include accessing live or snapshotted data captured from services running in a production environment, initiating generation of a first user interface instance using the updated data structures and using the accessed live or snapshotted data, and initiating generation of a second user interface instance using a different version of the data structures and using the same accessed live or snapshotted data. The method further includes comparing the first user interface instance to the second user interface instance to identify differences and then determine which outcome-defining effects the updated data structures had on the user interface based on the identified differences between the user interfaces. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US11431942B2

公开(公告)日：2022-08-30

申请号：US17244943

申请日：2021-04-29

Applicant: Netflix, Inc.

Inventor： Weiguo Zheng ,  Rex Yik Chun Ching

IPC: H04N7/01 ,  G09G5/00 ,  G09G5/18

Abstract: The disclosed method includes accessing video content encoded at a specified frame rate, and determining a refresh rate for an electronic display on which the video content is to be presented. The method next includes specifying a time interval for the video content over which frame rate conversion is to be applied to synchronize the video content frame rate with the electronic display refresh rate. The method also includes presenting the video content on the electronic display where the playback speed is adjusted for a first part of the interval. At this adjusted speed, the interval is played back using original video frames and multiple frame duplications. The presenting also adjusts playback speed of a second part of the interval. At the adjusted speed, the interval is played back using the original frames and a different number of frame duplications. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US20220229761A1

公开(公告)日：2022-07-21

申请号：US17150507

申请日：2021-01-15

Applicant: Netflix, Inc.

Inventor： David W. Pfitzner

IPC: G06F11/34 ,  G06F11/22 ,  G06F11/30

Abstract: The disclosed computer-implemented method includes accessing a hard drive to measure operational characteristics of the hard drive. The method next includes deriving hard drive health factors used to control the hard drive that are based on the measured operational characteristics. The derived hard drive health factors include an average per-seek time indicating an average amount of time the hard drive spends seeking specified data that is to be read and an average read speed indicating an average amount of time the hard drive spends reading the specified data. The method next includes determining, based on the hard drive health factors and the operational characteristics, an amount of load servicing capacity currently available at the hard drive, and then includes regulating the amount of load servicing performed by the hard drive according to the determined amount of available load servicing capacity. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US20220191119A1

公开(公告)日：2022-06-16

申请号：US17689864

申请日：2022-03-08

Applicant: NETFLIX, INC.

Inventor： David BANNISTER ,  Rafael RODRIGUEZ

IPC: H04L43/0864 ,  H04B10/27 ,  H04L41/06 ,  H04L43/10 ,  H04L69/16

Abstract: In various embodiments, a monitoring application assesses delays associated with a circuit within a network. The monitoring application determines a measured trip time between a first device and a second device that is connected to the first device via the circuit. The measured trip time is associated with a first variance attributable to the first device. The monitoring application performs one or more digital signal processing operations based on the measured trip time to generate a predicted trip time. The predicted trip time is associated with a second variance attributable to the first device that is less than the first variance. Based on the predicted trip time, the monitoring application determines characteristic(s) of the delay associated with the circuit. Advantageously, reducing variations attributable to the first device when generating the first predicted trip time increases the accuracy with which the monitoring application can determine the characteristic(s) of the delay.

公开(公告)号：US11361416B2

公开(公告)日：2022-06-14

申请号：US16352757

申请日：2019-03-13

Applicant: NETFLIX, INC.

Inventor： Christos Bampis ,  Zhi Li ,  Lavanya Sharan ,  Julie Novak ,  Martin Tingley

IPC: H04N19/154 ,  G06T7/00 ,  G06K9/62 ,  G06N20/20 ,  H04N21/25 ,  H04N19/147 ,  H04N17/00

Abstract: In various embodiments, an encoding metric comparison application computes a first set of quality scores associated with a test encoding configuration based on a set of bootstrap quality models. Each bootstrap quality model is trained based on a different subset of a training database. The encoding metric comparison application computes a second set of quality scores associated with a reference encoding configuration based on the set of bootstrap quality models. Subsequently, the encoding metric comparison application generates a distribution of bootstrap values for an encoding comparison metric based on the first set of quality scores and the second set of quality scores. The distribution quantifies an accuracy of a baseline value for the encoding comparison metric generated by a baseline quality model.

公开(公告)号：US11349699B2

公开(公告)日：2022-05-31

申请号：US13838059

申请日：2013-03-15

Applicant: NETFLIX, Inc

Inventor： Mark Watson ,  Anthony Neal Park ,  Wei Wei

IPC: H04L29/06 ,  G06F21/10 ,  H04L65/60

Abstract: Techniques are disclosed for improving user experience of multimedia streaming over computer networks. For example, a method for presenting multimedia content may generally include receiving a request to stream a media title. In response to the request, unencrypted content for the media title is streamed to a client. While streaming the unencrypted content, a digital rights management (DRM) license to access encrypted content for the media title is requested. After receiving the DRM license, the client switches from streaming the unencrypted content for the media title to streaming encrypted content for the media title. The switching from streaming the unencrypted content to streaming the encrypted content does not interrupt playback of the media title.

公开(公告)号：US20220166990A1

公开(公告)日：2022-05-26

申请号：US17516525

申请日：2021-11-01

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：US11341316B2

公开(公告)日：2022-05-24

申请号：US16737645

申请日：2020-01-08

Applicant: NETFLIX, INC.

Inventor： Aditya Mavlankar

IPC: G06F40/146 ,  G06T7/00 ,  H04N19/103 ,  H04N19/154

Abstract: In various embodiments, an image encoding application determines a first value for an encoding parameter based on a search interval. The image encoding application then encodes a source image using the first value for the encoding parameter to generate a first encoded image. Subsequently, the image encoding application computes a visual quality score for a first reconstructed source image derived from the first encoded image. The image encoding application reduces the search interval based on a comparison between the visual quality score and the target visual quality score. Based on the resulting reduced search interval, the image encoding application determines a second value for the encoding parameter. The image encoding application encodes the source image using the second value for the encoding parameter to generate a second encoded image. Subsequently, the image encoding application transmits the second encoded image to software application(s) for further processing and display.