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：US10387537B1

公开(公告)日：2019-08-20

申请号：US13717833

申请日：2012-12-18

Applicant: Amazon Technologies, Inc.

Inventor： Eric Peter Raeber ,  Daniel Peter Cox ,  Jaee Patwardhan

IPC: G06F17/21

Abstract: Described herein are systems and methods for providing introductory content before presentation of primary content. The introductory content engages the user's attention while the primary content is prepared for presentation and may improve the user experience. User input responsive to the introductory content may be used to indicate a point of interest within the primary content. Subsequent presentation of the primary content may begin at the point of interest or a point based at least in part on the point of interest.

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：US09710481B1

公开(公告)日：2017-07-18

申请号：US14498708

申请日：2014-09-26

Applicant: Amazon Technologies, Inc.

Inventor： Donald John Darling, Jr. ,  Douglas Sim Dietrich ,  Jaee Patwardhan

IPC: G06F9/445 ,  G06F17/30 ,  G06F12/02

CPC classification number: G06F17/30218 ,  G06F12/0246 ,  G06F12/0868 ,  G06F12/121 ,  G06F2212/1016 ,  G06F2212/154 ,  G06F2212/161 ,  G06F2212/222 ,  G06F2212/311 ,  G06F2212/452 ,  G06F2212/463 ,  G06F2212/7202

Abstract: A virtual installation module running on a user device determines that at least one application file chunk is to be stored in a memory of the user device prior to being executed, wherein the application file chunk includes a subset of the data of the application and is stored on a remote storage device that correspond to an application to be executed by the processing device. The virtual installation module determines when a request to execute the application on the user device will be received and stores the at least one application file chunk from the remote storage device in the memory of the user device based at least in part on when the at least one application file chunk will be utilized during execution of the application.

公开(公告)号：US08922713B1

公开(公告)日：2014-12-30

申请号：US13870788

申请日：2013-04-25

Applicant: Amazon Technologies, Inc.

Inventor： Sreeram Raju Chakrovorthy ,  Ziqiang Huang ,  Jaee Patwardhan

IPC: H04N7/26 ,  H04N9/475 ,  H04N5/04

CPC classification number: H04N5/04 ,  H04N21/4307 ,  H04N21/43635

Abstract: Content comprising audio and video may be processed by different processing pipelines, but latencies between these pipelines may differ due to differences in data compression, processing loads, and so forth. The time between entry and exit from the pipeline of a frame is measured to determine pipeline latency. The pipeline latency may be used to shift timing of audio frames, video frames, or both, such that they are synchronized during presentation.

Abstract translation: 包括音频和视频的内容可以由不同的处理管线处理，但是由于数据压缩，处理负载等的差异，这些管线之间的延迟可能会不同。 测量从帧的流水线进入和退出之间的时间以确定流水线延迟。 流水线延迟可用于移动音频帧，视频帧或两者的定时，使得它们在呈现期间被同步。