公开(公告)号：US10862945B2

公开(公告)日：2020-12-08

申请号：US16108920

申请日：2018-08-22

Applicant: Tata Consultancy Services Limited

Inventor： Abhijan Bhattacharyya ,  Suvrat Agrawal ,  Hemant Kumar Rath ,  Arpan Pal

IPC: H04L29/06 ,  H04N19/172 ,  H04N19/37 ,  H04L12/18 ,  H04L29/08

Abstract: Conventional protocols for live media streaming are not lightweight and hence not suitable for constrained video transmitting devices. The protocols are poor in terms of delay performance under lossy conditions and need to maintain a lot of states at the constrained transmitting end leading to load on the memory and draining energy of the devices. The conventionally used protocols do not perform well for intermittent connectivity. Usually the existing streaming solutions act either in completely reliable manner, using reliable transport protocol like TCP, or in completely unreliable manner using best effort unreliable transport protocol like UDP. The present disclosure provides a single streaming solution which can change the protocol semantics and maintains a balance between reliability and delay-performance, thereby optimizing the overall system goodput. The protocol does this intelligently by inferring the criticality of the segment in flight and enable live video streaming for Internet of Things (IoT).

公开(公告)号：US11290293B2

公开(公告)日：2022-03-29

申请号：US16752472

申请日：2020-01-24

Applicant: Tata Consultancy Services Limited

Inventor： Abhijan Bhattacharyya ,  Suvrat Agrawal ,  Hemant Kumar Rath ,  Arpan Pal

IPC: H04L12/18 ,  H04M3/56 ,  H04L47/36

Abstract: Video conferencing involves transmission of video as well as audio over a network between people involved in the video conferencing, over a network. Typically, quality of conference sessions are affected by quality of network connection. If the bandwidth of the network is low, that that may cause call quality issues or call drops, which is not desirable especially in certain applications such as a surgery over video conferencing. Disclosed herein is a Conference Manager (CM) that can facilitate video conferencing over a low bandwidth network. The CM uses a producer unit and a consumer unit, for video capture and transmission, and a communication device for audio capture and transmission. The CM captures and combines audio and video data at a receiving end of the communication network. The CM also uses a fast block-wise data transfer mechanism for facilitating communication between the transmitting end and the receiving end.