公开(公告)号：US20240397119A1

公开(公告)日：2024-11-28

申请号：US18797415

申请日：2024-08-07

Applicant: Apple Inc.

Inventor： Xiaohua YANG ,  Alexandros TOURAPIS ,  Dazhong ZHANG ,  Hang YUAN ,  Hsi-Jung WU ,  Jae Hoon KIM ,  Jiefu ZHAI ,  Ming CHEN ,  Xiaosong ZHOU

IPC: H04N19/90 ,  G06F3/01 ,  H04N19/52 ,  H04N19/597 ,  H04N21/2343

Abstract: In communication applications, aggregate source image data at a transmitter exceeds the data that is needed to display a rendering of a viewport at a receiver. Improved streaming techniques that include estimating a location of a viewport at a future time. According to such techniques, the viewport may represent a portion of an image from a multi-directional video to be displayed at the future time, and tile(s) of the image may be identified in which the viewport is estimated to be located. In these techniques, the image data of tile(s) in which the viewport is estimated to be located may be requested at a first service tier, and the other tile in which the viewport is not estimated to be located may be requested at a second service tier, lower than the first service tier.

公开(公告)号：US20230394081A1

公开(公告)日：2023-12-07

申请号：US18327125

申请日：2023-06-01

Applicant: Apple Inc.

Inventor： Shujie LIU ,  Xiaosong ZHOU ,  Hsi-Jung WU ,  Jiefu ZHAI ,  Ke ZHANG ,  Ming CHEN

IPC: G06F16/783 ,  G06T7/62 ,  G06F16/75

CPC classification number: G06F16/7837 ,  G06T7/62 ,  G06F16/75

Abstract: A video classification, indexing, and retrieval system is disclosed that classifies and retrieves video along multiple indexing dimensions. A search system may field queries identifying desired parameters of video, search an indexed database for videos that match the query parameters, and create clips extracted from responsive videos that are provided in response. In this manner, different queries may cause different clips to be created from a single video, each clip tailored to the parameters of the query that is received.

公开(公告)号：US20230262196A1

公开(公告)日：2023-08-17

申请号：US18140449

申请日：2023-04-27

Applicant: Apple Inc.

Inventor： Elizabeth C. CRANFILL ,  Stephen O. LEMAY ,  Joe S. ABUAN ,  Hsi-Jung WU ,  Xiaosong ZHOU ,  Roberto GARCIA, JR.

IPC: H04N7/14 ,  G09G5/14 ,  G06F3/04886 ,  G06F9/451 ,  G06F3/04812 ,  G06F3/0482 ,  G06F3/0486 ,  G06F3/0488 ,  H04M1/72469 ,  H04N23/45 ,  H04N7/15 ,  G06F3/04842 ,  H04N5/262 ,  H04N5/272 ,  G06F3/04817

CPC classification number: H04N7/141 ,  G09G5/14 ,  H04N7/147 ,  G06F3/04886 ,  G06F9/451 ,  G06F3/04812 ,  G06F3/0482 ,  G06F3/0486 ,  G06F3/0488 ,  H04M1/72469 ,  H04N23/45 ,  H04N7/15 ,  G06F3/04842 ,  H04N5/2624 ,  H04N5/272 ,  G06F3/04817

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.

公开(公告)号：US20200236349A1

公开(公告)日：2020-07-23

申请号：US16254528

申请日：2019-01-22

Applicant: Apple Inc.

Inventor： Jiefu ZHAI ,  Xingyu ZHANG ,  Xiaosong ZHOU ,  Jun XIN ,  Hsi-Jung WU ,  Yeping SU

IPC: H04N19/105 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61 ,  G06N3/08

Abstract: Systems and methods disclosed for video compression, utilizing neural networks for predictive video coding. Processes employed combine multiple banks of neural networks with codec system components to carry out the coding and decoding of video data.

公开(公告)号：US20200120345A1

公开(公告)日：2020-04-16

申请号：US16156193

申请日：2018-10-10

Applicant: Apple Inc.

Inventor： Mei GUO ,  Jun XIN ,  Jun XU ,  Yeping SU ,  Chris CHUNG ,  Xiaosong ZHOU ,  Hsi-Jung WU

IPC: H04N19/186 ,  H04N19/12 ,  H04N19/136 ,  H04N19/51

Abstract: Systems and methods are disclosed for reshaping HDR video content to improve compression efficiency while using standard encoding/decoding techniques. Input HDR video frames, e.g., represented in an IPT color space, may be reshaped before the encoding/decoding process and the corresponding reconstructed HDR video frames may then be reverse reshaped. The disclosed reshaping methods may be combinations of scene-based or segment-based methods.

公开(公告)号：US20130254620A1

公开(公告)日：2013-09-26

申请号：US13785859

申请日：2013-03-05

Applicant: Apple Inc.

Inventor： Xiaosong ZHOU ,  Hyeonkuk JEONG ,  Yan YANG ,  Dazhong ZHANG ,  Hsi-Jung WU

IPC: H03M13/05 ,  H03M13/29

CPC classification number: H03M13/05 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/27 ,  H03M13/29 ,  H03M13/2957 ,  H03M13/373 ,  H03M13/3746 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/008

Abstract: Coded video data may be transmitted between an encoder and a decoder using multiple FEC codes and/or packets for error detection and correction. Only a subset of the FEC packets need be transmitted between the encoder and decoder. The FEC packets of each FEC group may take, as inputs, data packets of a current FEC group and also an untransmitted FEC packet of a preceding FEC group. Due to relationships among the FEC packets, when transmission errors arise and data packets are lost, there remain opportunities for a decoder to recover lost data packets from earlier-received FEC groups when later-received FEC groups are decoded. This opportunity to recover data packets from earlier FEC groups may be useful in video coding and other systems, in which later-received data often cannot be decoded unless earlier-received data is decoded properly.

Abstract translation: 可以在编码器和解码器之间使用多个用于错误检测和校正的FEC码和/或包进行编码的视频数据。 只有FEC数据包的一部分需要在编码器和解码器之间传输。 每个FEC组的FEC分组可以采用当前FEC组的数据分组和前一个FEC组的未发送FEC分组的输入。 由于FEC分组之间的关系，当传输错误出现并且数据分组丢失时，当稍后接收的FEC组被解码时，解码器仍然有机会恢复来自早先接收的FEC组的丢失的数据分组。 从先前的FEC组恢复数据分组的机会在视频编码和其他系统中可能是有用的，其中后期接收的数据通常不能被解码，除非先前接收到的数据被正确解码。

公开(公告)号：US20200177927A1

公开(公告)日：2020-06-04

申请号：US16204792

申请日：2018-11-29

Applicant: Apple Inc.

Inventor： Xiaohua YANG ,  Alexandros TOURAPIS ,  Dazhong ZHANG ,  Hang YUAN ,  Hsi-Jung WU ,  Jae Hoon KIM ,  Jiefu ZHAI ,  Ming CHEN ,  Xiaosong ZHOU

IPC: H04N19/90 ,  H04N21/2343 ,  G06F3/01 ,  H04N19/597 ,  H04N19/52

Abstract: In communication applications, aggregate source image data at a transmitter exceeds the data that is needed to display a rendering of a viewport at a receiver. Improved streaming techniques that include estimating a location of a viewport at a future time. According to such techniques, the viewport may represent a portion of an image from a multi-directional video to be displayed at the future time, and tile(s) of the image may be identified in which the viewport is estimated to be located. In these techniques, the image data of tile(s) in which the viewport is estimated to be located may be requested at a first service tier, and the other tile in which the viewport is not estimated to be located may be requested at a second service tier, lower than the first service tier.

公开(公告)号：US20170359596A1

公开(公告)日：2017-12-14

申请号：US15178304

申请日：2016-06-09

Applicant: Apple Inc.

Inventor： Jae Hoon Kim ,  Xiaosong ZHOU ,  Sudeng Hu ,  Chris CHUNG ,  Dazhong ZHANG ,  Hsi-Jung WU

IPC: H04N19/59 ,  H04N19/61 ,  H04N19/167 ,  H04N19/182

CPC classification number: H04N19/59 ,  H04N19/103 ,  H04N19/124 ,  H04N19/132 ,  H04N19/146 ,  H04N19/167 ,  H04N19/176 ,  H04N19/182 ,  H04N19/187 ,  H04N19/31 ,  H04N19/33 ,  H04N19/61 ,  H04N19/85

Abstract: Video coding techniques are disclosed that can accommodate low bandwidth events and preserve visual quality, at least in areas of an image that have high significance to a viewer. Region(s) of interest may be identified from content of input frame that will be coded. Two representations of the input frame may be generated at different resolutions. A low resolution representation of the input frame may be coded according to predictive coding techniques in which a portion outside the region of interest is coded at higher quality than a portion inside the region of interest. A high resolution representation of the input frame may be coded according to predictive coding techniques in which a portion inside the region of interest is coded at higher quality than a portion outside the region of interest. Doing so preserves visual quality, at least in areas of the input image that correspond to the region of interest.

公开(公告)号：US20170347112A1

公开(公告)日：2017-11-30

申请号：US15168872

申请日：2016-05-31

Applicant: Apple Inc.

Inventor： Dazhong ZHANG ,  Jae Hoon KIM ,  Peikang SONG ,  Xiaosong ZHOU ,  Chris CHUNG ,  Hsi-Jung WU

IPC: H04N19/46 ,  H04L12/741 ,  H04L5/00 ,  H04L29/06 ,  H04N19/68

CPC classification number: H04N19/46 ,  H04L5/0055 ,  H04L45/745 ,  H04L65/602 ,  H04L65/607 ,  H04L65/608 ,  H04L65/80 ,  H04N19/68

Abstract: Coding and decoding techniques are disclosed in which a plurality of coding parameter sets is transmitted between an encoder and a decoder, each of which is distinguishable from the others by a respective identifier. When a new frame of video is to be coded, an encoder may identify a coding parameter set to be applied during coding, it may code the new frame according to the identified coding parameter set, and it may transmit the coded frame to the decoder along with an identifier of the coding parameter set used during the coding. A plurality of coding parameter sets is persistent at an encoder and the decoder simultaneously.

公开(公告)号：US20240306047A1

公开(公告)日：2024-09-12

申请号：US18669446

申请日：2024-05-20

Applicant: Apple Inc.

Inventor： Joe S. ABUAN ,  Ian J. BAIRD ,  Xiaosong ZHOU ,  Christopher M. GARRIDO ,  Dazhong ZHANG ,  Keith W. RAUENBUEHLER ,  Yan YANG ,  Patrick MIAUTON ,  Eric L. CHIEN ,  Berkat S. TUNG ,  Karthick SANTHANAM

IPC: H04W36/00 ,  G06F9/48 ,  H04B17/318 ,  H04B17/336 ,  H04L9/08 ,  H04L9/40 ,  H04L12/18 ,  H04L65/403 ,  H04L67/14 ,  H04L67/141 ,  H04L67/143 ,  H04W4/08 ,  H04W12/0433 ,  H04W12/06 ,  H04W36/02

CPC classification number: H04W36/0033 ,  G06F9/4856 ,  H04L9/0819 ,  H04L12/1822 ,  H04L12/1827 ,  H04L12/185 ,  H04L12/189 ,  H04L63/065 ,  H04L65/403 ,  H04L67/14 ,  H04L67/141 ,  H04L67/143 ,  H04W4/08 ,  H04W12/0433 ,  H04W12/06 ,  H04W36/0009 ,  H04W36/0016 ,  H04W36/0022 ,  H04W36/0027 ,  H04W36/0058 ,  H04W36/02 ,  H04B17/318 ,  H04B17/336

Abstract: A device implementing the subject technology may include at least one processor configured to establish a group communication session for two or more electronic devices utilizing a first communication modality. The at least one processor may be further configured to determine to utilize a second communication modality for the group communication session. The at least one processor may be further configured to transition the group communication session from the first communication modality to the second communication modality.