Patent ID: 6954795

Claim:
A transmission and reception system for data broadcast, including a transmission apparatus which transmits a data broadcasting content and a receiving apparatus which receives and presents the transmitted data broadcasting content, the transmission apparatus comprising: a presentation schedule time obtaining means for obtaining a presentation schedule time when the data broadcasting content is to be presented, a data broadcasting content transmission means for starting to transmit preceding data broadcasting content and then the data broadcasting content before the presentation schedule time, each of the preceding data broadcasting content and the data broadcasting content being repeatedly transmitted, the preceding data broadcasting content including first control information including an instruction which instructs the receiving apparatus to, on reception of an invisible presentation instruction message, start to receive the data broadcasting content and designate the data broadcasting content to be presented, the data broadcasting content including image structure information and second control information, the second information including (a) an instruction which instructs the receiving apparatus to, when the data broadcasting content is designated to be presented, form an image according to the image structure information and invisibly present the image, (b) an instruction which instructs the receiving apparatus to, on reception of a presentation start instruction message, visibly present the image; and a message transmission means for (i) transmitting the invisible presentation instruction message at a time when the data broadcasting contents transmission means starts to transmit the data broadcasting content, and (ii) transmitting the presentation start instruction message at the presentation schedule time, and the receiving apparatus including an event-driven mechanism that executes an instruction corresponding to a received message, comprising: a data broadcasting contents reception and presentation means for receiving the preceding data broadcasting content, starting to receive the data broadcasting content on reception of the invisible presentation instruction message, designating the data broadcasting content to be presented on completion of receiving the data broadcasting content, forming the image in accordance with the second control information, and invisibly presenting the image; and a data broadcasting contents visualization means for visibly presenting the image which has been invisibly presented by the data broadcasting contents reception and presentation means, on reception of the presentation start instruction message.