Patent ID: 9665331
Date: 2017-05-30
CPC Classifications: G06F,H04L

Claim:
1. A method comprising: receiving, at a server, a key frame from a publishing client sharing its screen, the key frame defining the screen of the publishing client in its entirety at the beginning of a screen sharing session with one or more viewing clients; transmitting, with the server, the key frame to the one or more viewing clients; iteratively processing, with the server, each of a plurality of delta frames, wherein the delta frames specify changes to the screen of the publishing client since the key frame or since a previous delta frame and the iterative processing comprises: accepting, with the server, a late joiner viewing client for the screen sharing session; sending, with the server, the aggregated current key frame to the late joiner viewing client; and sending, with the server, subsequently received delta frames to the one or more viewing clients and to the late joiner viewing client.