Channel selective information transmitting device and channel selective information transmitting method

Abstract

A channel selective information transmitting device is provided for making it possible to carry out the collection of viewing information more accurately even if there is dispersion of viewing channels while suppressing useless facility arrangements. The present invention is directed to a channel selective information transmitting device that transmits channel selective information to inform channels of broadcast signals selected by the users to a viewing information receiving server. The channel selective information transmitting device is provided with a channel change detecting section for detecting channel changes, a transmission waiting time acquiring section for acquiring a transmission waiting time until channel selective information in connection with the changes is transmitted, and a transmitting section for transmitting the channel selective information after a lapse of the acquired transmission waiting time.

Description

technical field [0001] The present invention relates to a channel selection information sending device, a channel selection information sending method and its program, and a storage medium, for example, applicable to IP multicast receiving terminals and home gateways. Background technique [0002] In systems such as TV broadcasting (hereinafter referred to as IP multicast broadcasting) based on the IP protocol that uses multicast distribution or CATV broadcasting services, the collection of audiovisual information (information on selected channels, etc.) is essential for correct evaluation of programs and correct identification Viewer preference is very important. [0003] The IGAP (Internet Group Membership Authentication Protocol) method has been proposed in the past (see Non-Patent Document 1). In multicast distribution, information on the viewing start time point is also collected as viewing information via routers. [0004] The structure of the IGAP method is to expand...

AI Technical Summary

Problems solved by technology

Each router makes an authentication request to the authentication server based on the switching request, but due to excessive concentration of switching requests, the response from the authentication server may not be able to ensure a sufficient response speed

As a result, there is a high possibility that many audio-visual information will be discarded without reaching the audio-visual rate receiving server.

[0008] (2) In order to avoid this kind of problem, it may be considered to make the settings of routers and other equipment have a large margin, but only because of the temporary concentration, the equipment settings have a large margin, resulting in increased waste and cost problems