TRANSMISSION DEVICE, RECEPTION DEVICE, TRANSMISSION METHOD, AND RECEPTION METHOD

摘要

A transmission device for rigorously protecting important information when information is transferred via a best-effort network. In this transmission device, a quality control information retention unit (203) holds quality control information set by a user. A recovery strength instruction unit (204) sets redundant code strength on the basis of transmission quality information from a reception device (104) and the quality control information held by means of the quality control information retention unit (203). Redundant encoding units (205, 206) generate, on the basis of the redundant code strength outputted from the recovery strength instruction unit (204), redundant code packets by means of an FEC for the packets outputted from encoding units (201, 202).

主权项

1. A transmitting apparatus that multiplexes and transmits a plurality of real-time streams to a receiving apparatus via a network where a packet loss occurs, the transmitting apparatus comprising:
a quality control information storage section that stores quality control information set by a user for controlling transmission quality of each real-time stream; a recovery strength indicating section that sets redundancy code strength for each of the plurality of real-time streams in accordance with transmission quality information indicating a situation of the network and the quality control information; and a redundant coding section that determines a redundant code amount of each of the real-time streams based on the redundancy code strength, and that generates a redundancy code packet.