公开(公告)号：US11412310B2

公开(公告)日：2022-08-09

申请号：US17322468

申请日：2021-05-17

Applicant: QUALCOMM Incorporated

Inventor： Thomas Stockhammer ,  Nikolai Konrad Leung ,  Imed Bouazizi ,  Min Wang

IPC: H04N21/647 ,  H04N21/6437 ,  H04N21/6379

Abstract: An example device includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to: receive tracking and sensor information from an extended reality (XR) client device; generate scene data using the tracking and sensor information, the scene data comprising one or more video frames of the video data; encode the video frames to form encoded video frames; perform a radio access network (RAN) simulation of delivering the encoded video frames via a radio access network; decode the encoded video frames delivered according to the RAN simulation to form decoded video frames; calculate values representing individual frame quality for each of the video frames from the generated one or more video frames and the decoded video frames; and determine an overall quality value from the values representing the individual frame quality for each of the video frames.

公开(公告)号：US20220239601A1

公开(公告)日：2022-07-28

申请号：US17648886

申请日：2022-01-25

Applicant: QUALCOMM Incorporated

Inventor： Imed Bouazizi ,  Thomas Stockhammer ,  Charles Nung LO

IPC: H04L47/525 ,  H04L47/78 ,  H04L47/74 ,  H04L65/61

Abstract: An example device for retrieving media data includes a memory configured to store media data; and one or more processors implemented in circuitry and configured to: send a request to retrieve media data according to a background data transfer to a media streaming application function (AF); in response to the request, receive an indication of a background data transfer opportunity from the media streaming AF; in response to the indication of the background data transfer opportunity, retrieve the media data according to the background data transfer; and store the retrieved media data to the memory.

公开(公告)号：US11277332B2

公开(公告)日：2022-03-15

申请号：US16333500

申请日：2017-04-20

Applicant: Qualcomm Incorporated

Inventor： Xipeng Zhu ,  Ruiming Zheng ,  Rulin Xing ,  Huichun Liu ,  Thomas Stockhammer ,  Stefano Faccin ,  Kuo-Chun Lee ,  Feilu Liu ,  Yu-Ting Yu

IPC: H04L12/707 ,  H04W76/15 ,  H04L12/801 ,  H04W28/02 ,  H04W88/02 ,  H04L45/00 ,  H04L47/193

Abstract: A user equipment (UE) may identify a bearer (e.g., a default bearer) and request establishment of a second bearer (e.g., a high priority bearer) for use in streaming downlink data from, for example, an application server. The UE may determine a status of a playout buffer and select the first bearer or the second bearer for use in streaming the downlink data associated with the application based on the status of the playout buffer. For example, the first bearer may be used be used by default, and the second bearer may be selected if the amount of data in the playout buffer does not satisfy (e.g., is below) a threshold. In some cases, each bearer may be associated with a transmission control protocol (TCP) port associated with a TCP connection. In some cases, each bearer may be associated with different Internet protocol (IP) address.

公开(公告)号：US20220007086A1

公开(公告)日：2022-01-06

申请号：US17362673

申请日：2021-06-29

Applicant: QUALCOMM Incorporated

Inventor： Thomas Stockhammer ,  Imed Bouazizi

IPC: H04N21/845 ,  G06F16/71 ,  G06F16/74 ,  H04N21/84 ,  H04L29/06

Abstract: An example device for retrieving media data includes a memory configured to store media data; and one or more processors implemented in circuitry and configured to: retrieve data of an addressable resource information (ARI) track of a media presentation, the data of the ARI track describing addressable resources and subsets of a switching set of the media presentation, the switching set comprising a plurality of media tracks including the addressable resources, the ARI track being a single index track of the media presentation, the addressable resources comprising retrievable media data; determine durations and sizes of the addressable resources from the data of the ARI track; determine one or more of the addressable resources to retrieve using the data of the ARI track including the durations and sizes of the addressable resources; retrieve the determined addressable resources; and store the retrieved addressable resources in the memory.

公开(公告)号：US20210360330A1

公开(公告)日：2021-11-18

申请号：US17322468

申请日：2021-05-17

Applicant: QUALCOMM Incorporated

Inventor： Thomas Stockhammer ,  Nikolai Konrad Leung ,  Imed Bouazizi ,  Min Wang

IPC: H04N21/647 ,  H04N21/6437 ,  H04N21/6379 ,  H04N19/159

Abstract: An example device includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to: receive tracking and sensor information from an extended reality (XR) client device; generate scene data using the tracking and sensor information, the scene data comprising one or more video frames of the video data; encode the video frames to form encoded video frames; perform a radio access network (RAN) simulation of delivering the encoded video frames via a radio access network; decode the encoded video frames delivered according to the RAN simulation to form decoded video frames; calculate values representing individual frame quality for each of the video frames from the generated one or more video frames and the decoded video frames; and determine an overall quality value from the values representing the individual frame quality for each of the video frames.

公开(公告)号：US20210306703A1

公开(公告)日：2021-09-30

申请号：US17211641

申请日：2021-03-24

Applicant: QUALCOMM Incorporated

Inventor： Thomas Stockhammer ,  Ece Ozturk

IPC: H04N21/44 ,  H04N21/43 ,  H04N21/84 ,  H04N21/438

Abstract: An example device for transporting media data includes: a memory configured to store media data; and one or more processors implemented in circuitry and configured to: determine that a manifest file for a media presentation includes data representing a delta time value for a resynchronization element of a segment of the media presentation; determine a multiple of the delta time value; determine a number of chunks of the segment that are currently available for retrieval using the multiple of the delta time value; send a request to a server device for the chunks of the segment that are currently available, wherein the request omits chunks of the segment that are not currently available; and store data of chunks received in response to the request in the memory.

公开(公告)号：US10938872B2

公开(公告)日：2021-03-02

申请号：US16298877

申请日：2019-03-11

Applicant: QUALCOMM Incorporated

Inventor： Charles Nung Lo ,  Thomas Stockhammer ,  Giridhar Dhati Mandyam ,  Gordon Kent Walker ,  Waqar Zia ,  Ralph Akram Gholmieh

IPC: H04L29/06 ,  H04N21/81 ,  H04N21/845 ,  H04N21/4722 ,  H04N21/4545

Abstract: An example device for retrieving media data includes a streaming client and a media presentation application configured in one or more processors implemented in circuitry. The streaming client is configured to determine a start time for an event message corresponding to an interactivity window during which one or more application-specific interactivity events can occur during presentation of media data, the application-specific interactivity events comprising times during which a user of the device can interact with the presented media data, determine an end time for the event message corresponding to the interactivity window, receive data representative of at least one of the application-specific interactivity events during the interactivity window corresponding to the event message, and forward the data representative of the at least one of the application-specific interactivity events to the media presentation application.

公开(公告)号：US10701400B2

公开(公告)日：2020-06-30

申请号：US15926833

申请日：2018-03-20

Applicant: QUALCOMM Incorporated

Inventor： YeKui Wang ,  Thomas Stockhammer

IPC: H04N19/70 ,  H04N19/46 ,  H04N21/6332 ,  H04N21/854

Abstract: In various implementations, provided are techniques, as well as systems that implement these techniques, for SEI messages that distinguish “essential” information from “non-essential” information. In various implementations, an encoder can be configured to determine whether information associated with video data is essential or is not essential. In various implementations, different types of SEI messages can be defined, where one or more of these types of SEI messages can indicate whether information associated with a particular video is essential or not essential. Essential information is required for presenting the video data, and is not required for decoding the video data.

公开(公告)号：US10567734B2

公开(公告)日：2020-02-18

申请号：US16115355

申请日：2018-08-28

Applicant: QUALCOMM Incorporated

Inventor： Thomas Stockhammer ,  Ye-Kui Wang

IPC: H04N13/00 ,  H04N13/161 ,  H04N21/235 ,  H04N5/232 ,  H04N21/236

Abstract: An example device for processing video data includes a memory configured to store an omnidirectional video stream, and a processor implemented in circuitry and configured to process (e.g., encode, transmit, receive, or decode) a first frame of a set of file format samples of the omnidirectional video stream, the set of file format samples referring to a sample entry, the first frame having a first region-wise packing scheme, and process a second frame of the set of file format samples referring to the sample entry, the second frame having a second region-wise packing scheme different than the first region-wise packing scheme. In this manner, a single omnidirectional video bitstream may include an entire virtual reality (VR) video content with most-requested regions being optimized with a largest number of color samples per unit of area.

公开(公告)号：US10405126B2

公开(公告)日：2019-09-03

申请号：US15672058

申请日：2017-08-08

Applicant: QUALCOMM Incorporated

Inventor： Nils Günther Peters ,  Dipanjan Sen ,  Thomas Stockhammer

IPC: H04S7/00 ,  G06F3/01 ,  G06F3/16 ,  H04R1/02 ,  H04R1/40 ,  H04S3/00 ,  G06T19/00

Abstract: An example device includes a memory device, and a processor coupled to the memory device. The memory is configured to store a plurality of representations of a soundfield. The processor is configured to track a steering angle provided by one or more angles associated with the device, and to select, based on the steering angle, a representation of the soundfield from the plurality of representations stored to the memory device.