公开(公告)号：US09763002B1

公开(公告)日：2017-09-12

申请号：US14722477

申请日：2015-05-27

Applicant: GOOGLE INC.

Inventor： Lars Henrik Ellner ,  Turaj Zakizadeh Shabestary ,  Niklas Enbom

IPC: H04B1/00 ,  H04R3/00

CPC classification number: H04R3/00 ,  G10L19/008 ,  G10L25/78 ,  H04M1/60 ,  H04R2499/11

Abstract: Methods and systems are provided for reusing audio streams in an audio mixing environment such that processing resources (e.g., CPU cycles) are not wasted on encoding the same audio streams multiple times (e.g., more than once). Instead, processing resources are conserved without comprising audio quality. The methods described herein are particularly useful when a participant transitions from using a shared encoder to using the participant's own encoder, and when the participant transitions from using the participant's own encoder to using a shared encoder.

公开(公告)号：US09602918B2

公开(公告)日：2017-03-21

申请号：US13780728

申请日：2013-02-28

Applicant: GOOGLE INC.

Inventor： Lars Henrik Ellner ,  Turaj Zakizadeh Shabestary ,  Niklas Enbom

IPC: H04R5/00 ,  H04R3/00 ,  G10L19/008 ,  H04M1/60 ,  G10L25/78

CPC classification number: H04R3/00 ,  G10L19/008 ,  G10L25/78 ,  H04M1/60 ,  H04R2499/11

Abstract: Methods and systems are provided for reusing audio streams in an audio mixing environment such that processing resources are not wasted on encoding the same audio streams multiple times. Instead, processing resources are conserved without comprising audio quality. The methods described herein are particularly useful when a participant transitions from using a shared encoder to using the participant's own encoder, and when the participant transitions from using the participant's own encoder to using a shared encoder.

公开(公告)号：US09386273B1

公开(公告)日：2016-07-05

申请号：US14341051

申请日：2014-07-25

Applicant: Google Inc.

Inventor： Lars Henrik Ellner

IPC: H04N7/14 ,  H04N7/15 ,  H04M3/56 ,  H04L29/06

CPC classification number: H04N7/15 ,  H04L12/1818 ,  H04L12/1827 ,  H04L65/403 ,  H04L65/4076 ,  H04L65/605 ,  H04M3/563 ,  H04M3/567

Abstract: Introduction of one or more multicast engines to a video conferencing system permits an improvement of overall network bandwidth used for a video conference. Video streams are received at a multicast engine from each of at least two participants in the video conference. The multicast engine transmits only the first of the two video streams based on a determination that only the first video stream is a candidate for a conference video stream to be transmitted to at least some of a plurality of conference participants from the server station. The conference video stream is received at the multicast engine from the server station, and the stream is transmitted from the multicast engine to each of the participants in the video conference that are connected to the multicast engine.

Abstract translation: 将一个或多个多播引擎引入视频会议系统允许改进用于视频会议的总体网络带宽。 在视频会议中的至少两个参与者中的每一个的多播引擎处接收视频流。 基于仅将第一视频流作为会议视频流候选的确定，多播引擎仅发送两个视频流中的第一视频流，以从服务器站向多个会议参与者中的至少一些发送。 会议视频流在服务器站的多播引擎处被接收，并且该流从组播引擎发送到连接到组播引擎的视频会议中的每个参与者。