公开(公告)号：WO2011126511A4

公开(公告)日：2011-12-08

申请号：PCT/US2010050311

申请日：2010-09-24

Applicant: APPLE INC ,  CRANFILL ELIZABETH C ,  LEMAY STEPHEN O ,  ABUAN JOE S ,  WU HSI-JUNG ,  ZHOU XIAOSONG ,  GARCIA ROBERTO JR ,  JEONG HYEONKUK ,  GUO HAITAO ,  PRICE DOUGLAS ,  ZHANG DAZHONG ,  TUNG BERKAT S ,  NORMILE JAMES O ,  YANG YAN ,  ELDRED DAVID A ,  YANOWITZ ANDREW ,  CHEN TING ,  KUO DAVID D

Inventor： CRANFILL ELIZABETH C ,  LEMAY STEPHEN O ,  ABUAN JOE S ,  WU HSI-JUNG ,  ZHOU XIAOSONG ,  GARCIA ROBERTO JR ,  JEONG HYEONKUK ,  GUO HAITAO ,  PRICE DOUGLAS ,  ZHANG DAZHONG ,  TUNG BERKAT S ,  NORMILE JAMES O ,  YANG YAN ,  ELDRED DAVID A ,  YANOWITZ ANDREW ,  CHEN TING ,  KUO DAVID D

IPC: H04N7/14 ,  H04N7/15

CPC classification number: H04N7/141 ,  G06F3/04842 ,  G09G5/14 ,  H04N5/2258 ,  H04N5/2624 ,  H04N5/272 ,  H04N7/147 ,  H04N7/15

Abstract: Some embodiments provide a method for initiating a video conference using a first mobile device. The method presents, during an audio call through a wireless communication network with a second device, a selectable user-interface (UI) item on the first mobile device for switching from the audio call to the video conference. The method receives a selection of the selectable UI item. The method initiates the video conference without terminating the audio call. The method terminates the audio call before allowing the first and second devices to present audio and video data exchanged through the video conference.

Abstract translation: 一些实施例提供了使用第一移动设备发起视频会议的方法。 该方法在通过具有第二设备的无线通信网络的音频呼叫期间呈现在第一移动设备上的用于从音频呼叫切换到视频会议的可选择的用户界面（UI）项目。 该方法接收可选UI项目的选择。 该方法启动视频会议而不终止音频通话。 该方法在允许第一和第二设备呈现通过视频会议交换的音频和视频数据之前终止音频呼叫。

公开(公告)号：WO2014134177A3

公开(公告)日：2014-10-23

申请号：PCT/US2014018702

申请日：2014-02-26

Applicant: APPLE INC

Inventor： SU YEPING ,  PAN HAO ,  NORMILE JAMES O ,  WU HSI-JUNG

IPC: H04N21/234 ,  H04N21/2343 ,  H04N21/24 ,  H04N21/44 ,  H04N21/845

CPC classification number: H04N19/152 ,  H04N19/142 ,  H04N21/23418 ,  H04N21/23424 ,  H04N21/23439 ,  H04N21/2402 ,  H04N21/44004 ,  H04N21/44008 ,  H04N21/8456

Abstract: Systems and methods are presented for minimizing the suddenness and immediacy of changes to the video quality perceived by users due to bandwidth fluctuations and transitions between different bitrate streams. A method may include identifying an upcoming bitrate change in a bitstream and a nearest scene cut boundary from sync frame scene cut tags included in the bitstream. The method may include calculating whether waiting until the identified nearest scene cut boundary before changing the bitrate will cause the buffer to drop below a threshold. When the buffer is calculated to not drop below the threshold, the method may postpone the upcoming bitrate change until the identified nearest scene cut boundary.

Abstract translation: 提出了系统和方法，以最小化由于带宽波动和不同比特率流之间的转换而导致的用户感知的视频质量变化的突然性和即时性。 一种方法可以包括识别比特流中即将到来的比特率变化和来自比特流中包括的同步帧场景切割标签的最近场景切割边界。 该方法可以包括计算在改变比特率之前是否等待到所识别的最近场景切割边界将导致缓冲器降低到阈值以下。 当缓冲区被计算为不低于阈值时，该方法可以推迟即将到来的比特率改变，直到识别的最近场景切割边界。

公开(公告)号：WO2011126511A8

公开(公告)日：2012-11-22

申请号：PCT/US2010050311

申请日：2010-09-24

Applicant: APPLE INC ,  CRANFILL ELIZABETH C ,  LEMAY STEPHEN O ,  ABUAN JOE S ,  WU HSI-JUNG ,  ZHOU XIAOSONG ,  GARCIA ROBERTO JR ,  JEONG HYEONKUK ,  GUO HAITAO ,  PRICE DOUGLAS S ,  ZHANG DAZHONG ,  TUNG BERKAT S ,  NORMILE JAMES O ,  YANG YAN ,  ELDRED DAVID A ,  YANOWITZ ANDREW ,  CHEN TING ,  KUO DAVID D

Inventor： CRANFILL ELIZABETH C ,  LEMAY STEPHEN O ,  ABUAN JOE S ,  WU HSI-JUNG ,  ZHOU XIAOSONG ,  GARCIA ROBERTO JR ,  JEONG HYEONKUK ,  GUO HAITAO ,  PRICE DOUGLAS S ,  ZHANG DAZHONG ,  TUNG BERKAT S ,  NORMILE JAMES O ,  YANG YAN ,  ELDRED DAVID A ,  YANOWITZ ANDREW ,  CHEN TING ,  KUO DAVID D

IPC: H04N7/14 ,  H04N7/15

CPC classification number: H04N7/141 ,  G06F3/04842 ,  G09G5/14 ,  H04N5/2258 ,  H04N5/2624 ,  H04N5/272 ,  H04N7/147 ,  H04N7/15

Abstract: Some embodiments provide a method for initiating a video conference using a first mobile device. The method presents, during an audio call through a wireless communication network with a second device, a selectable user-interface (UI) item on the first mobile device for switching from the audio call to the video conference. The method receives a selection of the selectable UI item. The method initiates the video conference without terminating the audio call. The method terminates the audio call before allowing the first and second devices to present audio and video data exchanged through the video conference.

Abstract translation: 一些实施例提供了使用第一移动设备发起视频会议的方法。 该方法在通过具有第二设备的无线通信网络的音频呼叫期间呈现在第一移动设备上的用于从音频呼叫切换到视频会议的可选择的用户界面（UI）项目。 该方法接收可选UI项目的选择。 该方法发起视频会议而不终止音频呼叫。 该方法在允许第一和第二设备呈现通过视频会议交换的音频和视频数据之前终止音频呼叫。