公开(公告)号：US10521086B1

公开(公告)日：2019-12-31

申请号：US14109077

申请日：2013-12-17

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Shinjan Kumar Tiwary ,  Sreeram Raju Chakrovorthy ,  Sapna Jayaram Rai

IPC: G06F3/0484 ,  H04N21/2343

Abstract: A variety of media devices may stream and present content such as movies, music, audiobooks, and so forth. During streaming, changing conditions or unavailable frames may result in stutters or other presentation problems. Described herein are techniques and systems for extrapolating one or more frames based on previously received data. The interpolated frames may be presented, reducing or eliminating the presentation problems.

公开(公告)号：US09767317B1

公开(公告)日：2017-09-19

申请号：US14225175

申请日：2014-03-25

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Sreeram Raju Chakrovorthy ,  Celil Urgan ,  Shinjan Kumar Tiwary ,  Joseph Everett Bentley ,  Jaee Patwardhan

IPC: G06F21/71 ,  G06F21/70 ,  G06F21/53

CPC classification number: G06F21/71 ,  G06F21/10 ,  G06F21/53 ,  G06F21/70 ,  G06F21/74

Abstract: A browser includes modules to provide markup language applications with access to cryptographic functions executing in a secure zone. Non-secure operations associated with the cryptographic functions called by the markup language application may be executed in a virtual machine. Sensitive data such as cryptographic keys may be “wrapped” or encrypted by the secure zone using a key. The encrypted sensitive data may then be stored in non-secure memory for further use. Upon request by the cryptographic functions, the encrypted sensitive data may be retrieved and decrypted with the secure zone for use.

公开(公告)号：US11409415B1

公开(公告)日：2022-08-09

申请号：US16719498

申请日：2019-12-18

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Shinjan Kumar Tiwary ,  Sreeram Raju Chakrovorthy ,  Sapna Jayaram Rai

IPC: G06F3/0484 ,  H04N21/2343

Abstract: When streaming content such as movies, music, or audiobooks for presentation, changes in conditions or unavailable frames may result in stutters or other negative experiences during presentation. Described herein are techniques and systems for extrapolating one or more frames based on previously received data. When an unavailable frame is determined, an interpolated frame is generated for presentation in place of the unavailable frame. The interpolated frame may be generated based on other frames that were received out of sequence, such as frames for presentation subsequent to the unavailable frame, as well as frames for presentation prior to the unavailable frame.

公开(公告)号：US09232249B1

公开(公告)日：2016-01-05

申请号：US14014265

申请日：2013-08-29

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Sreeram Raju Chakrovorthy ,  Sapna Jayaram Rai ,  Shinjan Kumar Tiwary

IPC: H04N7/173 ,  H04N21/258 ,  H04N21/234

CPC classification number: H04N21/25808 ,  H04N21/23406 ,  H04N21/23412 ,  H04N21/23439 ,  H04N21/44004 ,  H04N21/44008 ,  H04N21/44209 ,  H04N21/8455

Abstract: A variety of media devices may stream and present content such as movies, music, audiobooks, and so forth. During streaming, data transfer rates may temporarily drop below that needed to maintain presentation. Described herein are techniques and systems for repeating presentation of previously received video frames. This repeated presentation allows for presentation of the content to continue uninterrupted, while providing time for the data transfer rate to regain a level capable of maintaining the presentation.

Abstract translation: 各种媒体设备可以流和呈现诸如电影，音乐，有声读物等的内容。 在流媒体期间，数据传输速率可能会暂时降低到维持演示所需的速度。 这里描述了用于重复先前接收到的视频帧的呈现的技术和系统。 这种重复的演示允许呈现内容以不间断地继续，同时为数据传输速率提供时间以恢复能够维持演示的水平。

公开(公告)号：US10135896B1

公开(公告)日：2018-11-20

申请号：US14187768

申请日：2014-02-24

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Shinjan Kumar Tiwary ,  Sreeram Raju Chakrovorthy ,  Sapna Jayaram Rai

IPC: H04L29/06

Abstract: Media devices streaming video from a server may use techniques to maintain presentation of content to one or more users. Described herein are systems and methods for determining which metadata to provide to the media devices for maintaining presentation of the content. The determination of which metadata to provide may be based on various factors such as the capabilities of the media device, the expected quality of service, and the amount of bandwidth between the server and the media device.

公开(公告)号：US09674255B1

公开(公告)日：2017-06-06

申请号：US14225848

申请日：2014-03-26

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Shinjan Kumar Tiwary ,  Celil Urgan ,  Sreeram Raju Chakrovorthy ,  Jaee Patwardhan ,  Joseph Everett Bentley

IPC: G06F15/16 ,  H04L29/06

CPC classification number: H04L65/607 ,  H04L65/4084 ,  H04L65/602 ,  H04L65/604 ,  H04L65/80

Abstract: Media devices may stream a wide variety of content for presentation. Described herein are systems, devices, and methods for improving the presentation of the content. The media device may execute a pipeline architecture comprising a sequential execution of a plurality of threads. The threads may include a decryption thread, a decoding thread, and a rendering thread. The media device may include buffer queues between the threads, which enable continuous content presentation when one or more of the threads fail to communicate with another thread. The media device may pause the presentation of content by suspending the execution of the rendering thread. In one implementation, the media device replaces a stale frame that is displayed after performing a seek function with a black frame. In another example, to maintain content presentation, the media device drops video frames if an audio video lag event occurs.

公开(公告)号：US09910512B1

公开(公告)日：2018-03-06

申请号：US14537426

申请日：2014-11-10

Applicant: Amazon Technologies, Inc.

Inventor： Shinjan Kumar Tiwary ,  Eric Peter Raeber ,  Singana Dayakar Reddy LNU ,  Stephen Allen Whitney ,  Richard Baker

IPC: G06F3/033

CPC classification number: G06F3/038 ,  G06F3/0338

Abstract: Provided are systems and methods for receiving a plurality of response speed profiles associated with an application, selecting a first response speed profile from the plurality of response speed profiles, causing rendering of an on-screen display based at least in part on the first response speed profile, determining that a response speed profile change condition exists, selecting a second response speed profile from the plurality of response speed profiles, and causing rendering of an on-screen display based at least in part on the second response speed profile.

公开(公告)号：US09641989B1

公开(公告)日：2017-05-02

申请号：US14495275

申请日：2014-09-24

Applicant: Amazon Technologies, Inc.

Inventor： Douglas Sim Dietrich ,  Shinjan Kumar Tiwary ,  Michael Patrick Bauerly

IPC: H04M1/725 ,  H04W4/12 ,  H04N21/435 ,  H04N21/4788 ,  H04N21/488 ,  H04W4/00 ,  H04M1/64

CPC classification number: H04W4/12 ,  H04N21/44222 ,  H04N21/44227 ,  H04N21/4532 ,  H04N21/4788 ,  H04N21/4882

Abstract: Systems and methods are disclosed for selecting from various mechanisms for displaying a message directed to particular user(s) and/or user account(s). The mechanism by which the message may be displayed may be determined based at least in part on prediction of the importance and/or a prediction of a time criticality of the message to the user(s) to whom the message is to be delivered. The message may be received or generated by a hub user device. If the hub user device is not in the process of displaying any content on a primary display screen associated with the hub user device, then the received or generated message may be displayed on the primary display screen. If the hub user device is using the primary display screen to display any variety of content, then the message may be displayed on the primary display screen, redirected to another user device in communicative connection with the hub user device, or stored for later display based at least in part on the prediction of the importance and/or time criticality of the message.

公开(公告)号：US09544346B1

公开(公告)日：2017-01-10

申请号：US14298145

申请日：2014-06-06

Applicant: Amazon Technologies, Inc.

Inventor： Sreeram Raju Chakrovorthy ,  Shinjan Kumar Tiwary

IPC: G06F15/173 ,  H04L29/06 ,  H04L12/26

CPC classification number: H04L65/60 ,  H04L41/5058 ,  H04L43/08 ,  H04L43/16

Abstract: Media devices may stream content from content delivery networks. Described herein are systems, devices, and methods for selecting nodes to improve content streaming. A selection server may select a node based on destination metrics provided by the media device. The destination metrics may include a variety of information such as information about the latency associated with the video stream, the bandwidth between the media device and the streaming node, or the throughput associated with the video stream. The selection server may compare the destination metrics with source metrics to determine which node to select.

Abstract translation: 媒体设备可以从内容传送网络流式传输内容。 这里描述了用于选择节点以改进内容流的系统，设备和方法。 选择服务器可以基于由媒体设备提供的目的地度量来选择节点。 目的地度量可以包括各种信息，例如关于与视频流相关联的延迟的信息，媒体设备和流节点之间的带宽，或与视频流相关联的吞吐量。 选择服务器可以将目的地度量与源度量进行比较，以确定要选择的节点。