초록 ▼

A wireless video terminal (17) creates a control signal for requesting video data. This control signal includes the type of the requested video data, a method of transmitting the video data, a position registration request and the like. The wireless video terminal (17) requests the video data by tra

A wireless video terminal (17) creates a control signal for requesting video data. This control signal includes the type of the requested video data, a method of transmitting the video data, a position registration request and the like. The wireless video terminal (17) requests the video data by transmitting this control signal to a video server (11) through a base-station for control-data (19) and a network (13). The video server (11) transmits the requested video data to the wireless video terminal (17) requesting the video data through a designated channel, via the network (13), a router for video-data (14) and a base-station for video-data (15).

대표청구항 ▼

[ What is claimed is:] [1.] A wireless visual communication system for distributing various video data to a movable terminal station by radio communication, said wireless visual communication system comprising:a video server for storing a plurality of types of video data;a base-station for video-dat

[ What is claimed is:] [1.] A wireless visual communication system for distributing various video data to a movable terminal station by radio communication, said wireless visual communication system comprising:a video server for storing a plurality of types of video data;a base-station for video-data being connected with said video server through a network, for transmitting video data being supplied from said video server to said terminal station through a first radio communication path; anda base-station for control-data, for receiving a control signal being transmitted from said terminal station through a second radio communication path and for informing said video server of said control signal; whereinsaid terminal station is for announcing a request for video data and the type of said requested video data by transmitting said control signal,said video server is for retrieving corresponding said video data on the basis of said control signal being received from said base-station for control-data and outputting said video data on said network, andrelatively wide and narrow bands are allotted to said first and second radio communication paths respectively; and whereina plurality of communication channels are available for said base-station for video-data in said first radio communication path for transmitting said video data,said terminal station is for further designating a communication channel for receiving said video data by transmitting said control signal,said base-station for video-data is for supervising current conditions of said communication channels,said base-station for control-data is for inquiring of said base-station for video-data about whether said communication channel being designated by said control signal is available upon receiving said control signal, and for transmitting said control signal to said video server if said communication channel is available while requiring said terminal station to re-set a receiving communication channel if said communication channel is unavailable, andsaid base-station for video-data is for transmitting said video data being supplied from said video server to said terminal station through said communication channel being designated by said terminal station.