Patent ID: 8325278

Claim:
A video/audio device network, comprising: a video/audio signal input/output device; and a video/audio reproduction device, wherein said video/audio signal input/output device includes: an acquirer that acquires a signal including a video signal and an audio signal to be input, a converter that converts the signal acquired by said acquirer into an indicated format, a determiner that determines a format of the signal to be output to said video/audio reproduction device when a format of the signal acquired by said acquirer is changed, an outputter that outputs information of the format determined by said determiner and the signal converted by said converter to said video/audio reproduction device, a storage that stores in advance a relationship between a supply source of the signal including the video signal, the audio signal, and the format, and a controller that controls said outputter to output the information of the format determined by said determiner to said video/audio reproduction device in response to a determination of the format by said determiner, and subsequently controls said outputter to provide the format determined by said determiner to said converter, and to output the signal converted by said converter to said video/audio reproduction device, wherein said controller retrieves, at the time of switching operation of the supply source by a user, from said storage the format corresponding to the supply source after the switching as a predicted format, and controls said outputter to output information of the predicted format to said video/audio reproduction device, and said video/audio reproduction device includes: an inputter that inputs the information of the format output from said video/audio signal input/output device, and subsequently inputs the signal output from said video/audio signal input/output device, a reproducer that reproduces the signal input by said inputter as a video and an audio, and a setter that sets, based on said information of the format input by said inputter, said reproducer in a state where said reproducer can reproduce the signal of the format indicated by said information of the format, wherein said inputter inputs the information of the predicted format output from said video/audio signal input/output device, and said setter sets, based on said information of the predicted format input by said inputter, said reproducer in a state where said reproducer can reproduce the signal of the format indicated by said information of the predicted format, and subsequently resets, based on said information of the format, said reproducer in a state where said reproducer can reproduce the signal of the format indicated by said information of the format when said information of the format input by said inputter is different from said information of the predicted format.