公开(公告)号：US11863839B2

公开(公告)日：2024-01-02

申请号：US17632465

申请日：2020-07-30

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Doh-Suk Kim ,  Sean Thomas McCarthy ,  Scott Daly ,  Jeffrey Riedmiller ,  Ludovic Christophe Malfait ,  Raphael Marc Ullmann ,  Jason Michael Cloud

IPC: H04N21/647 ,  H04L65/80 ,  H04N21/2668 ,  H04N21/45

CPC classification number: H04N21/64769 ,  H04L65/80 ,  H04N21/2668 ,  H04N21/4532

Abstract: A method for delivering media to a playback device including outputting first test media to be viewed by a first user. The method further includes receiving a first user input related to a first perception of the first test media by the first user and indicating a first personalized quality of experience of the first user with respect to the first test media. The method further includes generating a first personalized sensitivity profile including one or more viewing characteristics of the first user based on the first user input, and determining, based at least in part on the first personalized sensitivity profile, a first media parameter. The first media parameter is determined in order to increase an efficiency of media delivery to the first playback device over a network while preserving the first personalized quality of experience of the first user.

公开(公告)号：US12137276B2

公开(公告)日：2024-11-05

申请号：US18511251

申请日：2023-11-16

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Doh-Suk Kim ,  Sean Thomas McCarthy ,  Scott Daly ,  Jeffrey Riedmiller ,  Ludovic Christophe Malfait ,  Raphael Marc Ullmann ,  Jason Michael Cloud

IPC: H04N21/647 ,  H04L65/80 ,  H04N21/2668 ,  H04N21/45

Abstract: A method for delivering media to a playback device including outputting first test media to be viewed by a first user. The method further includes receiving a first user input related to a first perception of the first test media by the first user and indicating a first personalized quality of experience of the first user with respect to the first test media. The method further includes generating a first personalized sensitivity profile including one or more viewing characteristics of the first user based on the first user input, and determining, based at least in part on the first personalized sensitivity profile, a first media parameter. The first media parameter is determined in order to increase an efficiency of media delivery to the first playback device over a network while preserving the first personalized quality of experience of the first user.

公开(公告)号：US11107481B2

公开(公告)日：2021-08-31

申请号：US16379479

申请日：2019-04-09

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Raphael Marc Ullmann ,  Glenn N. Dickins

IPC: G10L19/005 ,  G10L19/022 ,  G10L19/16 ,  H04L29/06 ,  G10L19/02

Abstract: Systems and methods are described for concealing packet loss in a received audio stream. Packets of the audio stream may be received in a non-lapped transform domain format, where at least one packet is missing in the stream. The received packets are decoded, and each missing packet in the decoded stream is replaced by a reduced-energy signal block. Each reduced-energy signal block may also be modified at a beginning or ending boundary, and shifted such that a start or end of each missing packet does not coincide with a peak of a transform window of a lapped transform domain format. The raw audio signal may then be encoded into transform windows having the lapped transform domain format. Packet loss concealment may then be performed for selected transform windows that include modified reduced-energy blocks, either prior to transmission or after transmission by the receiving endpoint.