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1. 发明申请

US20210376965A1 EARLY PACKET LOSS DETECTION AND FEEDBACK 有权
公开(公告)号：US20210376965A1
公开(公告)日：2021-12-02
申请号：US17395342
申请日：2021-08-05
申请人： VID SCALE, INC.
发明人： Weimin Liu , Rahul Vanam , Liangping Ma , Yuriy Reznik , Gregory S. Sternberg , Wei Chen , Dharm Veer
IPC分类号： H04L1/18 , H04W28/04 , H04N19/164 , H04N21/6437 , H04N19/107 , H04N21/647 , H04N19/105 , H04N19/172 , H04L12/801 , H04L12/911 , H04L12/863 , H04L12/26
摘要： A video encoding device (e.g., a wireless transmit/receive unit (WTRU)) may transmit an encoded frame with a frame sequence number using a transmission protocol. The video encoding device, an application on the video encoding device, and/or a protocol layer on the encoding device may detect a packet loss by receiving an error notification. The packet loss may be detected at the MAC layer. The packet loss may be signaled using spoofed packets, such as a spoofed NAM packet, a spoofed XR packet, or a spoofed ACK packet. A lost packet may be retransmitted at the MAC layer (e.g., by the encoding device or another device on the wireless path). Packet loss detection may be performed in uplink operations and/or downlink operations, and/or may be performed in video gaining applications via the cloud. The video encoding device may generate and send a second encoded frame based on the error notification.

2. 发明授权

US10932152B2 Rate adaptation using network signaling 有权
公开(公告)号：US10932152B2
公开(公告)日：2021-02-23
申请号：US16404649
申请日：2019-05-06
申请人： VID SCALE, INC.
发明人： Anantharaman Balasubramanian , Gregory S. Sternberg , Liangping Ma , Samian Kaur , Yuriy Reznik , Avi Rapaport , Weimin Liu , Eduardo Asbun
IPC分类号： H04W28/02 , H04L29/06 , H04L12/811 , H04L12/825 , H04L29/08
摘要： Systems, methods, and instrumentalities are disclosed to perform rate adaptation in a wireless transmit/receive unit (WTRU). The WTRU may receive an encoded data stream, which may be encoded according to a Dynamic Adaptive HTTP Streaming (DASH) standard. The WTRU may request and/or receive the data stream from a content server. The WTRU may monitor and/or receive a cross-layer parameter, such as a physical layer parameter, a RRC layer parameter, and/or a MAC layer parameter (e.g., a CQI, a PRB allocation, a MRM, or the like). The WTRU may perform rate adaption based on the cross-layer parameter. For example, the WTRU may set the CE bit of an Explicit Congestion Notification (ECN) field based on the cross-layer parameter. The WTRU may determine to request the data stream encoded at a different rate based on the cross-layer parameter, the CE bit, and/or a prediction based on the cross-layer parameter.

3. 发明申请

US20170303159A1 ADAPTING COMMUNICATION PARAMETERS TO LINK CONDITIONS, TRAFFIC TYPES, AND/OR PRIORITIES 审中-公开
公开(公告)号：US20170303159A1
公开(公告)日：2017-10-19
申请号：US15515865
申请日：2015-10-06
申请人： VID SCALE, INC
发明人： Liangping Ma , Wei Chen , Gregory S. Sternberg , Yuriy Reznik , Oghenekome Oteri
IPC分类号： H04W28/02 , H04L1/00 , H04W28/04 , H04L29/06
CPC分类号： H04W28/0242 , H04L1/0001 , H04L1/0033 , H04L47/11 , H04L47/24 , H04L65/80 , H04W28/0268 , H04W28/04
摘要： Systems and methods are provided for adapting communication parameters to a variety of link conditions, traffic types and priorities. For example, WiFi transmission parameters (e.g. retry limit, AIFS, CW size, MCS order and/or CCA threshold) may be adapted to channel congestion levels, channel errors and/or traffic priority levels. Parameter adaptation may be coordinated across layers (e.g. between MAC and PHY layer parameters). Congestion levels may be detected, for example, using a smoothed queue size and/or channel busy time. Traffic may be transmitted using adapted parameters, such as reduced retry limits for a high congestion level and increased retry limits for priority traffic in response to channel error. Feedback may support parameter adaptation. For example, feedback may be provided by a receiver and/or within a sender, such as a sender MAC and/or PHY layer or a parameter adapter providing feedback (e.g. spoofed NACK packet) to a sender application, transport and/or network layer.

4. 发明申请

US20160219248A1 USER-ADAPTIVE VIDEO TELEPHONY 审中-公开
标题翻译：用户自适应视频电话
公开(公告)号：US20160219248A1
公开(公告)日：2016-07-28
申请号：US14914229
申请日：2014-08-29
申请人： VID SCALE, INC.
发明人： Yuriy Reznik , Gregory S. Sternberg , Ariela Zeira , Liangping Ma , Yong He , Anantharaman Balasubramanian , Yan Ye , Louis Kerofsky , Ralph Neff , Zhifeng Chen
IPC分类号： H04N7/14 , H04N7/15
CPC分类号： H04N7/147 , H04N7/152 , H04N21/2343 , H04N21/23439 , H04N21/422 , H04N21/4223
摘要： A device may control a video communication via transcoding and/or traffic shaping. The device may include a multipoint control unit (MCU) and/or a server. The device may receive one or more video streams from one or more devices. The device may analyze a received video stream to determine a viewing parameter. The viewing parameter may include a user viewing parameter, a device viewing parameter, and/or a content viewing parameter. The device may modify a video stream based on the viewing parameter. Modifying the video stream may include re-encoding the video stream, adjusting an orientation, removing a video detail, and/or adjusting a bit rate. The device may send the modified video stream to another device. The device may determine a bit rate for the video stream based on the viewing parameter. The device may indicate the bit rate by sending a feedback message and/or by signaling a bandwidth limit.
摘要翻译：设备可以通过代码转换和/或流量整形来控制视频通信。该设备可以包括多点控制单元（MCU）和/或服务器。设备可以从一个或多个设备接收一个或多个视频流。设备可以分析所接收的视频流以确定观看参数。观看参数可以包括用户观看参数，设备观看参数和/或内容观看参数。设备可以基于查看参数修改视频流。修改视频流可以包括对视频流进行重新编码，调整取向，移除视频细节和/或调整比特率。设备可以将修改的视频流发送到另一设备。该设备可以基于观看参数来确定视频流的比特率。设备可以通过发送反馈消息和/或通过发送带宽限制来指示比特率。

5. 发明申请

US20160219088A1 QUALITY OF EXPERIENCE BASED QUEUE MANAGEMENT FOR ROUTERS FOR REAL-TIME VIDEO APPLICATIONS 审中-公开
标题翻译：基于经验的质量管理用于实时视频应用的路由器
公开(公告)号：US20160219088A1
公开(公告)日：2016-07-28
申请号：US14917003
申请日：2014-09-05
申请人： VID SCALE, INC.
发明人： Liangping Ma , Dimitrios Karampatsis , Gregory S. Sternberg , Samian Kaur , Ghyslain Pelletier , Anantharaman Balasubramanian , Robert A. DiFazio , Ralph Neff , Louis Kerofsky , Weimin Liu
IPC分类号： H04L29/06 , H04L12/823
CPC分类号： H04L65/4069 , H04L47/32 , H04L65/604 , H04L65/605 , H04L65/80 , H04L69/22
摘要： Systems, methods, and instrumentalities are disclosed for managing real-time traffic video flows. A node may comprise a processor configured to receive a first real-time video traffic flow. A state variable may be associated with the first real-time video traffic flow at the node and a state variable may be associated with the second real-time video traffic flow at the node. The first real-time video traffic flow may comprises plurality of packets and each packet may comprise a lost packet indicator. The node may be configured to drop a first packet in the first real-time video traffic flow, update the state variable associated with the first real-time video traffic flow at the node to indicate the dropped packet, and update the lost packet indicator for a second packet in the first real-time video traffic flow based on the dropped packet.
摘要翻译：公开了用于管理实时业务视频流的系统，方法和工具。节点可以包括被配置为接收第一实时视频业务流的处理器。状态变量可以与节点处的第一实时视频业务流相关联，并且状态变量可以与节点处的第二实时视频业务流相关联。第一实时视频业务流可以包括多个分组，并且每个分组可以包括丢失分组指示符。节点可以被配置为丢弃第一实时视频业务流中的第一分组，更新与节点处的第一实时视频业务流相关联的状态变量，以指示丢弃的分组，并且更新丢失的分组指示符基于丢弃的分组在第一实时视频业务流中的第二分组。

6. 发明申请

US20160198225A1 VIEWING CONDITIONS ESTIMATION FOR ADAPTIVE DELIVERY OF VISUAL INFORMATION IN A VIEWING ENVIRONMENT 审中-公开
标题翻译：查看环境中视觉信息自适应传递的条件估计
公开(公告)号：US20160198225A1
公开(公告)日：2016-07-07
申请号：US14915750
申请日：2014-09-04
申请人： VID SCALE, INC.
发明人： Yuriy Reznik , Eduardo Asbun , Robert L. Olesen , Gregory S. Sternberg , Louis Kerofsky , Ralph Neff , Rahul Vanam
IPC分类号： H04N21/462 , H04N5/44 , H04N21/442 , H04N21/422 , H04N21/2343 , H04N21/238 , H04N21/4223 , H04N21/258
CPC分类号： H04N21/4621 , H04N5/4403 , H04N21/2343 , H04N21/234363 , H04N21/23439 , H04N21/238 , H04N21/25841 , H04N21/2662 , H04N21/42202 , H04N21/4223 , H04N21/44209 , H04N21/44218 , H04N21/8456 , H04N2005/4444
摘要： Visual information may be delivered to streaming-capable devices in a viewing environment, such as a home environment or a commercial environment. The visual information can be adapted to user behavior and/or viewing conditions in such a way as to deliver a satisfactory user experience while conserving network resources, such as bandwidth and/or capacity. Viewing distance and/or ambient light, which may affect viewing conditions in a viewing environment, may be estimated. Bandwidth may be reduced by eliminating details that may not be perceived by the user in the estimated viewing conditions (e.g., by determining a spatial resolution (e.g. a maximum spatial resolution) perceptible under the viewing conditions and not exceeding that spatial resolution).
摘要翻译：视觉信息可以在诸如家庭环境或商业环境的观看环境中传送到具有流能力的设备。视觉信息可以适应于用户行为和/或观看条件，以便在节省诸如带宽和/或容量的网络资源的同时提供令人满意的用户体验。可以估计可能影响观看环境中观看条件的观看距离和/或环境光。可以通过消除在估计的观看条件下（例如，通过确定在观看条件下可感知并且不超过该空间分辨率）的空间分辨率（例如，最大空间分辨率），用户可能不会感知到的细节来减少带宽。

7. 发明授权

US11088788B2 Early packet loss detection and feedback 有权
公开(公告)号：US11088788B2
公开(公告)日：2021-08-10
申请号：US14781183
申请日：2014-03-28
申请人： VID SCALE, INC
发明人： Weimin Liu , Rahul Vanam , Liangping Ma , Yuriy Reznik , Gregory S. Sternberg , Wei Chen , Dharm Veer
IPC分类号： H04L1/18 , H04W28/04 , H04N19/164 , H04N21/6437 , H04N19/107 , H04N21/647 , H04N19/105 , H04N19/172 , H04L12/801 , H04L12/911 , H04L12/863 , H04L12/26
摘要： A video encoding device (e.g., a wireless transmit/receive unit (WTRU)) may transmit an encoded frame with a frame sequence number using a transmission protocol. The video encoding device, an application on the video encoding device, and/or a protocol layer on the encoding device may detect a packet loss by receiving an error notification. The packet loss may be detected at the MAC layer. The packet loss may be signaled using spoofed packets, such as a spoofed NACK packet, a spoofed XR packet, or a spoofed ACK packet. A lost packet may be retransmitted at the MAC layer (e.g., by the encoding device or another device on the wireless path). Packet loss detection may be performed in uplink operations and/or downlink operations, and/or may be performed in video gaining applications via the cloud. The video encoding device may generate and send a second encoded frame based on the error notification.

8. 发明授权

US11356638B2 User-adaptive video telephony 有权
公开(公告)号：US11356638B2
公开(公告)日：2022-06-07
申请号：US15957887
申请日：2018-04-19
申请人： VID SCALE, INC.
发明人： Yuriy Reznik , Gregory S. Sternberg , Ariela Zeira , Liangping Ma , Yong He , Anantharaman Balasubramanian , Yan Ye , Louis Kerofsky , Ralph Neff , Zhifeng Chen
IPC分类号： H04N7/14 , H04N21/2343 , H04N21/422 , H04N21/4223 , H04N7/15
摘要： A device may control a video communication via transcoding and/or traffic shaping. The device may include a multipoint control unit (MCU) and/or a server. The device may receive one or more video streams from one or more devices. The device may analyze a received video stream to determine a viewing parameter. The viewing parameter may include a user viewing parameter, a device viewing parameter, and/or a content viewing parameter. The device may modify a video stream based on the viewing parameter. Modifying the video stream may include re-encoding the video stream, adjusting an orientation, removing a video detail, and/or adjusting a bit rate. The device may send the modified video stream to another device. The device may determine a hit rate for the video stream based on the viewing parameter. The device may indicate the bit rate by sending a feedback message and/or by signaling a bandwidth limit.

9. 发明授权

US10349302B2 Rate adaptation using network signaling 有权
公开(公告)号：US10349302B2
公开(公告)日：2019-07-09
申请号：US15415873
申请日：2017-01-26
申请人： VID SCALE, INC.
发明人： Anantharaman Balasubramanian , Gregory S. Sternberg , Liangping Ma , Samian Kaur , Yuriy Reznik , Avi Rapaport , Weimin Liu , Eduardo Asbun
IPC分类号： H04W28/02 , H04L12/811 , H04L12/825 , H04L29/06 , H04L29/08
摘要： Systems, methods, and instrumentalities are disclosed to perform rate adaptation in a wireless transmit/receive unit (WTRU). The WTRU may receive an encoded data stream, which may be encoded according to a Dynamic Adaptive HTTP Streaming (DASH) standard. The WTRU may request and/or receive the data stream from a content server. The WTRU may monitor and/or receive a cross-layer parameter, such as a physical layer parameter, a RRC layer parameter, and/or a MAC layer parameter (e.g., a CQI, a PRB allocation, a MRM, or the like). The WTRU may perform rate adaption based on the cross-layer parameter. For example, the WTRU may set the CE bit of an Explicit Congestion Notification (ECN) field based on the cross-layer parameter. The WTRU may determine to request the data stream encoded at a different rate based on the cross-layer parameter, the CE bit, and/or a prediction based on the cross-layer parameter.

10. 发明授权

US10116712B2 Quality of experience based queue management for routers for real-time video applications 有权
公开(公告)号：US10116712B2
公开(公告)日：2018-10-30
申请号：US14917003
申请日：2014-09-05
申请人： VID SCALE, INC.
发明人： Liangping Ma , Dimitrios Karampatsis , Gregory S. Sternberg , Samian Kaur , Ghyslain Pelletier , Anantharaman Balasubramanian , Robert A. DiFazio , Ralph Neff , Louis Kerofsky , Weimin Liu
IPC分类号： G06F15/16 , H04L29/06 , H04L12/823
摘要： Systems, methods, and instrumentalities are disclosed for managing real-time traffic video flows. A node may comprise a processor configured to receive a first real-time video traffic flow. A state variable may be associated with the first real-time video traffic flow at the node and a state variable may be associated with the second real-time video traffic flow at the node. The first real-time video traffic flow may comprises plurality of packets and each packet may comprise a lost packet indicator. The node may be configured to drop a first packet in the first real-time video traffic flow, update the state variable associated with the first real-time video traffic flow at the node to indicate the dropped packet, and update the lost packet indicator for a second packet in the first real-time video traffic flow based on the dropped packet.

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