Video display system, video display device, its control method, and information storage medium

摘要

To provide a video display system for allowing a user to look at and listen to video and sound on various means. A video display system has a video display device and a portable video display device, connected to each other for communication. The video display device produces own device video data and own device sound data to be displayed and reproduced, respectively, on the video display device; displays the own device video data and reproduces the own device sound data; encodes these data into a data format which the portable video display device is able to handle, to thereby produce other device video data and other device sound data; and sends to the portable video display device. The portable video display device receives these data, and decodes and displays the other device video data, and decodes and reproduces the other device sound data.

主权项

1. A video display system having a first video display device and a second video display device, connected to each other for communication,
wherein the first video display device comprises:
a first video and sound output unit configured to display first video data and reproduce first sound data;an operation input unit configured to receive an operation input of a user; anda data sending unit configured to send second video data in accordance with the first video data and second sound data in accordance with the first sound data to the second video display device;an encoding unit configured to encode the first video data and the first sound data into a data format, which the second video display device is able to handle, to produce second video data and second sound data;a first receiving unit configured to receive group identification information from each of a plurality of second video display devices, the identification information identifying, among a plurality of groups, a group to which each of the plurality of second video display devices belongs, wherein the plurality of second video display devices are connected to the first video display device for communication; anda related information generation unit configured to generate related information for relating each of the plurality of second video display devices to any of the plurality of groups, in response to the received group identification information,wherein the encoding unit produces the plurality of pieces of the second video data and the plurality of pieces of the second sound data, which are mutually different, in response to the plurality of groups, andwherein the data sending unit sends the plurality of pieces of the second video data and the plurality of pieces of the second sound data, which are produced for the plurality of groups respectively, to the second video display device that is related to the group in the related information, wherein the second video display device comprises:
a data receiving unit configured to receive the second video data and the second sound data;a second video and sound output unit configured to display the second video data and reproduce the second sound data; andan operation information sending unit configured to receive the operation input of the user and send operation information indicating content of the operation input to the first video display device, wherein the first video display device operates in accordance with the operation input received by the operation input unit in a first operation mode in which the first video and sound output unit displays the first video data and reproduces the first sound data, wherein the first video display device operates in accordance with the operation information sent by the operation information sending unit of the second video display device as the operation input received by the operation input unit in a second operation mode in which the data sending unit sends the second video data and the second sound data to the second video display device, and wherein the first video and sound output unit changes the first video data and the first sound data using the operation information sent by the operation information sending unit of the second video display device in a received display mode and the content of the first video data and the first sound data has interactive nature.