Patent ID: 6954611
Filing Date: 2005-10-11
Classification: H04H,H04N

Abstract:
1. A program-related contents generation/presentation method of generating and presenting program-related contents to be distributed to a portable terminal from a program video and program-related information that is relevant to the program video along the progress of a broadcasting program, under a mobile environment of receiving text, still pictures or motion pictures by utilizing a portable terminal, the method comprising: a definition step of defining a tree structure of the program-related contents, and setting optional attributes to sub-trees of the defined tree structure as presentation attributes, setting an ascending order or a descending order to the attributes, thereby to define how to trace subordinates nodes of the tree structure of program-related contents; a transmission decision step of comparing a receiving timing of each user of the program-related contents assigned by each user having a portable terminal and an event that has occurred in the program video with each other, thereby to decide for each user whether the program-related contents should be generated and transmitted or not; a program-related contents generation step of inputting the program video and program-related information, when there exists a user to whom it has been decided at the transmission decision step that the program-related contents should be generated and transmitted, and generating the program-related contents based on the tree structure defined at the definition step; a presentation yardstick calculation step of calculating presentation parameters for various information of leaf nodes in the tree structure of the program-related contents generated at the program-related contents generation step, by using significance that reflects users' preferences set in advance and freshness that shows levels of freshness of the information, and sorting the leaf nodes based on the calculated values of the presentation parameters to obtain presentation yardsticks; a presentation candidate selection step of selecting leaf nodes in the tree structure of the program-related contents as presentation candidates for each user in the order of the presentation yardsticks calculated at the presentation yardstick calculation step based on a viewing data quantity that has been set as a viewing request by each user in advance; a master node presentation yardstick setting step of setting a presentation yardstick of a master node of the presentation candidates selected for each user at the presentation candidate selection step, to a maximum value among the presentation yardsticks of the subordinate nodes; a presentation scenario generation step of generating a presentation route that follows the leaf nodes of the presentation candidates starting from the root of the tree structure based on how to trace the subordinates nodes, as a presentation scenario for each user; and a transmission step of transmitting the presentation scenario generated for each user at the presentation scenario generation step to the portable terminal of the corresponding user.