Patent ID: 8887187
Filing Date: 2014-11-11
Classification: G06F,G09B,H04N

Abstract:
1. An audio-visual terminal operated by a viewer of an audio-visual program, the audio-visual terminal comprising: a reproducing part for reproducing the audio-visual program; a motion instructing part for instructing, based on motion instruction information unique to the audio-visual program with which a program provider that provides the audio-visual program requests the viewer to make a predetermined motion at times unique to the audio-visual program, the viewer to make the motion; a motion sensor for detecting a response motion of the viewer made by the viewer for transmission to a viewing authenticating principal, which authenticates that the viewer is normally viewing the audio-visual program, every time the motion is instructed by the motion instructing part; a sending part for sending information output from the audio-visual terminal to a viewing authentication system of the viewing authenticating principal, for obtaining viewing authentication; a coding part for coding information about the response motion of the viewer obtained from a detection result detected by the motion sensor into a signal sendable by the sending part; a response motion recording part for recording detection results detected by the motion sensor as a response motion history; a response motion comparing part for comparing the detection result detected last by the motion sensor and detection results except the detection result detected last by the motion sensor in the response motion history recorded by the response motion recording part; and a viewer authenticating part for outputting a viewer authentication which authenticates the viewer as the correct viewer to whom the program provider of the audio-visual program is supposed to provide the audio-visual program when the detection result detected last by the motion sensor is determined to agree with the other detection results included in the response motion history in light of predetermined criteria based on a result of comparison by the response motion comparing part.