| 摘要 |
PROBLEM TO BE SOLVED: To determine the cause and occurrence place of quality degradation in real time at the time of quality fault occurrence without user operation.SOLUTION: A quality degradation notification system comprises: a home gateway device 3 including a quality information generating unit for generating quality information on communication at an external network 2, and a quality information transmission unit for outputting out-of-house network quality information generated by the quality information generating unit; and a video receiving terminal 5 including a quality information receiving unit for receiving out-of-house network quality information output by the quality information transmission unit, a quality information generating unit for generating quality information on communication at a home network 4, a quality information determination unit for determining whether quality degradation has occurred referring to the out-of-house network quality information received by the quality information receiving unit and the in-house network quality information generated by the quality information generating unit, and for locating the occurrence place of quality degradation if the quality degradation has occurred; and a quality information display unit for giving notice of the occurrence and occurrence place of the quality degradation. |
