Patent ID: 8776159
Filing Date: 2014-07-08
Classification: G06F,H04N

Abstract:
1. A content distribution system for distributing a content such that the content is able to be viewed in a time-shifted manner by an audio-visual device, comprising: a device group management unit which manages a group to which audio-visual devices belong, the audio-visual devices all being determined to be used only by a same user and being capable of realizing time-shift viewing mutually; a viewing state management unit which acquires viewing information of the content by one of the audio-visual devices, the viewing information including a content identifier for uniquely identifying a viewing content and a content replay position that specifies a viewing position of the same user in the content; and a time shift control unit which transmits permission information for viewing the content in a time-shifted manner and the viewing information of the content acquired by the viewing state management unit, to (i) a distribution server which distributes the content and (ii) another of the audio-visual devices included in the group managed by the device group management unit, in response to a time shift request issued by the another of the audio-visual devices without the same user having to perform an authentication procedure.