Patent ID: 8179958

Claim:
A device switching system, comprising: a sender device which has a session with a correspondent device in which video picture data compressed by an interframe compression method is sent from the correspondent device to the sender device; and a plurality of distribution destination devices capable of communicating with the sender device, wherein the sender device sends the video picture data compressed by the interframe compression method, which is sent from the correspondent device to the sender device in the session, to one or more distribution destination devices selected from among the plurality of distribution destination devices, wherein the selected one or more distribution destination devices from among the plurality of distribution destination devices receive the video picture data compressed by the interframe compression method, wherein the sender device chooses a switching target device from among the selected one or more distribution destination devices, wherein the switching target device outputs the video picture data compressed by the interframe compression method at the same time that the switching target device is chosen by the sender device.