US 11,790,756 B2
Emergency response system using viewport dependent streaming
Peder Sjölund, Obbola (SE); Kim Cavallin, Järfälla (SE); Anders Ahlén, Knivsta (SE); Tobias Nilsson, Solna (SE); and Rikard Renman, Stockholm (SE)
Assigned to SWEDOME AB, Sollentuna (SE)
Filed by Swedome AB, Sollentuna (SE)
Filed on Jan. 18, 2022, as Appl. No. 17/577,974.
Application 17/577,974 is a division of application No. 15/930,040, filed on May 12, 2020, granted, now 11,263,891.
Claims priority of provisional application 62/848,026, filed on May 15, 2019.
Prior Publication US 2022/0139201 A1, May 5, 2022
Int. Cl. G08B 25/00 (2006.01); H04W 4/90 (2018.01); H04W 4/02 (2018.01); G08B 25/10 (2006.01)
CPC G08B 25/006 (2013.01) [G08B 25/001 (2013.01); G08B 25/10 (2013.01); H04W 4/02 (2013.01); H04W 4/90 (2018.02)] 25 Claims
OG exemplary drawing
 
1. A back-end system for public safety emergency response, also referred to as the back-end part of public safety emergency response system,
wherein said back-end system for public safety emergency response is configured to handle network communication to and/or from multiple information sources for gathering emergency response information from said information sources, including at least audio and/or video data related to an emergency situation and additional emergency response information,
wherein said back-end system for public safety emergency response is configured to extract subsets of information from said emergency response information at least partly based on input originating from one or more users and/or operators,
wherein said back-end system for public safety emergency response is configured to perform processing of said emergency response information to enable formation of an overview of the emergency situation for presentation to one or more users and/or operators,
wherein said back-end system for public safety emergency response is configured to respond to a viewport request from a client application managed by a user/operator of the emergency response system and to relay at least audio and/or video data corresponding to the viewport request towards the client application to support viewport dependent streaming to the user side of the emergency response system,
wherein said viewport request is related to an omnidirectional camera or a virtual 3D image/video representation for requesting a selected viewport of said omnidirectional camera or said virtual 3D image/video representation,
wherein said viewport request includes information representative of the head direction of a user, and said back-end system is configured to adapt viewport based on the head direction and to transfer the corresponding viewport-based video and/or additional data towards the client application for rendering, and
wherein said back-end system includes a server application, and a viewport in the server application is adapted to match the user's head direction, and said back-end system is configured to stream at least audio and/or video data corresponding to the viewport back towards the client application for rendering.