BAND MANAGEMENT DEVICE, BAND SETTING REQUEST DEVICE, METHOD FOR CONTROLLING BAND MANAGEMENT DEVICE, CONTROL METHOD FOR BAND SETTING REQUEST DEVICE, BAND MANAGEMENT SYSTEM, BAND MANAGEMENT PROGRAM, BAND SETTING REQUEST PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM RECORDING PROGRAM

摘要

A master unit (20a) is provided with a band assignment section (211) for determining a transmission permissible period in which the reproduction quality of a first data flow in a data flow receiving device for receiving a data flow can be maintained and in which the first data flow can be transmitted and setting a transmission permissible period in which a second data flow can be transmitted while securing the transmission permissible period in which the determined first data flow can be transmitted when receiving a request to set the transmission band of the second data flow. As a result, the master unit (20a) assigns transmission permissible periods which are inconsecutive in terms of time to the second data flow. The first data flow is transmitted between the transmission permissible periods which are inconsecutive in terms of time and thus can be transmitted in the state in which the reproduction quality is maintained.