公开(公告)号：US20240422385A1

公开(公告)日：2024-12-19

申请号：US18740859

申请日：2024-06-12

Applicant: Tata Consultancy Services Limited

Inventor： Abhijan BHATTACHARYYA ,  Madhurima GANGULY ,  Ashis SAU ,  Suraj Kumar MAHATO ,  Balamuralidhar PURUSHOTHAMAN

IPC: H04N21/44 ,  H04N21/434 ,  H04N21/435 ,  H04N21/462

Abstract: This disclosure provides a Kalman filter based predictive jitter buffer adaptation for smooth live video streaming. In the present disclosure, at receiver of a live video steaming system, reassembly of received data packets is performed to reconstruct different types of encoded frames transmitted by a transmitter. The different types of encoded frames are Full encoded frames in basic state and Delta encoded frames. To tackle data packet loss, the receiver is also equipped with a frugal yet efficient loss handling mechanism for both basic and delta frames. To achieve smooth rendering of the live video, the receiver employs a Kalman Filter based Jitter Buffer Adaptation mechanism. The Kalman Filter based Jitter Buffer Adaptation mechanism observes variability in arrival time of the open-loop best-effort traffic and adapts a jitter-buffer based on future end-to-end delay estimates. Thus, smoothness of streaming is preserved at the receiving end augmented with robust loss-resilience.

公开(公告)号：US20220219325A1

公开(公告)日：2022-07-14

申请号：US17199182

申请日：2021-03-11

Applicant: Tata Consultancy Services Limited

Inventor： Abhijan BHATTACHARYYA ,  Ruddra dev ROYCHOUDHURY ,  Sanjana SINHA ,  Sandika BISWAS ,  Ashis SAU ,  Madhurima GANGULY ,  Sayan PAUL ,  Brojeshwar BHOWMICK

IPC: B25J9/16 ,  B25J13/08 ,  B25J3/00

Abstract: This disclosure relates generally to navigation of a tele-robot in dynamic environment using in-situ intelligence. Tele-robotics is the area of robotics concerned with the control of robots (tele-robots) in a remote environment from a distance. In reality the remote environment where the tele robot navigates may be dynamic in nature with unpredictable movements, making the navigation extremely challenging. The disclosure proposes an in-situ intelligent navigation of a tele-robot in a dynamic environment. The disclosed in-situ intelligence enables the tele-robot to understand the dynamic environment by identification and estimation of future location of objects based on a generating/training a motion model. Further the disclosed techniques also enable communication between a master and the tele-robot (whenever necessary) based on an application layer communication semantic.

公开(公告)号：US20210208581A1

公开(公告)日：2021-07-08

申请号：US16988453

申请日：2020-08-07

Applicant: Tata Consultancy Services Limited

Inventor： Abhijan BHATTACHARYYA ,  Ashis SAU ,  Ruddra Dev ROYCHOUDHURY ,  Hrishav Bakul BARUA ,  Chayan SARKAR ,  Sayan PAUL ,  Brojeshwar BHOWMICK ,  Arpan PAL ,  Balamuralidhar PURUSHOTHAMAN

IPC: G05D1/00 ,  H04L29/08 ,  G05D1/02

Abstract: Robotic platform for tele-presence applications has gained paramount importance, such as for remote meetings, group discussions, and the like and has sought much attention. There exist some robotic platforms for such tele-presence applications, these lack efficacy in communication and interaction between remote person and avatar robot deployed in another geographic location thus adding network overhead. Embodiments of the present disclosure for edge centric communication protocol for remotely maneuvering tele-presence robot in geographically distributed environment. More specifically, edge-centric tele-presence robot architecture is provided for maneuvering tele-presence robot in distributed geographical environment, wherein the architecture provides a framework that implements both cloud and edge-centric systems together with a first communication protocol for communication between a master device and an edge device and a second communication protocol different from the first communication protocol for communication between the edge device and the tele-presence robot to improve robustness and efficacy in communication.