Patent ID: 8732743
Filing Date: 2014-05-20
Classification: H04H,H04N,H04W

Abstract:
1. A passenger information control device having a video display controller that transmits, to a display device in a train, video data for an in-train advertisement, which is transmitted from a ground transmission controller to an onboard transmission controller, the passenger information control device comprising: a storage unit configured to store a program table and the video data, the program table storing at least one of the following factors, (i) number of times an advertisement video has been presented, (ii) a validity period of the advertisement video, (iii) a time period from a last presentation time to present time, and (iv) a volume of the video data, being associated with each advertisement; a deletion determining unit configured to receive the program table via the video display controller and determine whether to designate the video data as a candidate for deletion based on at least one factor in the program table; and a deleting unit configured to analyze the video data designated as a candidate for deletion relative to at least one of said factors, and to selectively delete video data designated as a candidate for deletion based on said analysis, wherein the deleting unit further selectively deletes the video data with a deletion candidate flag set by the ground transmission controller, the deletion candidate flag indicating the video data that is a candidate for deletion in the program table.