Patent ID: 7450179

Claim:
A data broadcasting system comprising: a transmitting system to transmit data broadcasting contents containing at least video contents and data contents in a Hi-Vision format; and a receiver to which either of a Hi-Vision monitor enabling display in said Hi-Vision format or a standardized monitor having a resolution being different from that of said Hi-Vision monitor is able to be selectively connected; wherein said transmitting system comprises: a standardized data producing unit to produce standardized data to be displayed on said standardized monitor corresponding to the data contents in said Hi-Vision format; and a multiplexing unit to multiplex the standardized data contents produced by said standardized data producing unit and the video contents and the data contents in said Hi-Vision format, thereby obtaining the data broadcasting contents; wherein said receiver comprises: a multiplexing separation unit to separate the data broadcasting contents having been received from said transmitting system into the video contents and the data contents in said Hi-Vision format and the standardized data contents; a first video/data synthesizing unit to synthesize the video contents and the data contents in said Hi-Vision format separated by said multiplexing separation unit, thereby obtaining display data contents to be displayed on said Hi-Vision monitor; a first down-scaling unit to convert the video contents in said Hi-Vision format separated by said multiplexing separation unit into a video contents having a resolution being applicable to said standardized monitor, thereby obtaining standardized video contents; and a second video/data synthesizing unit to synthesize the standardized data contents separated by said multiplexing separation unit and said standardized video contents obtained by said first down-scaling unit, thereby obtaining display data contents to be displayed on said standardized monitor.