STREAMING VIEWING AND LISTENING QUALITY MANAGEMENT DEVICE, METHOD AND PROGRAM, AND STREAMING VIEWING AND LISTENING QUALITY CONTROL DEVICE, METHOD AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To grasp and manage user's viewing and listening quality in an integrated fashion and besides analyze a cause of degradation in viewing and listening quality to allow the degradation to be prevented in advance.;SOLUTION: By tracing control signals between a streaming delivering device 1 and a user's device 2, an information collecting device 3 detects TCP session information, a contents delivering band and a buffer size of the user's device 2 and monitors streaming packets on the TCP session detected to detect the actually measured delivering band and the TCP's retransmitted number. Thus, the information collecting device 3 estimates each user's viewing and listening quality based on the contents delivering band, the buffer size of the user's device 2 and the actually measured delivering band. Based on the TCP's retransmitted number detected by the information collecting device 3 and the each user's viewing and listening quality estimated by the information collecting device 3, the information management device 4 analyzes a degradation cause in the viewing and listening quality to perform control for avoiding the degradation in the viewing and listening quality depending on the analyzed results of the degradation cause in the viewing and listening quality a quality controller 5 has received from information collecting device 3.;COPYRIGHT: (C)2006,JPO&NCIPI