VIDEO RECEPTION TERMINAL, HOME GATEWAY DEVICE, QUALITY MANAGEMENT SYSTEM, AND QUALITY DETERIORATION ISOLATION SYSTEM

摘要

A pre-FEC packet quality analyzer 310 measures quality information from a video stream which is not yet stored in a buffer 303 and on which a recovery process using FEC is not yet carried out. A post-FEC packet quality analyzer 308 measures quality information from the video stream which is stored in the buffer 303 and on which the recovery process using FEC is carried out. A video receiving terminal profile transmitter 307 generates a video receiving terminal profile including at least information showing the size of the buffer 303, and transmits the video receiving terminal profile to a home gateway device.