VALIDATION AND FAST CAHNNEL CHANGE FOR BROADCAST SYSTEM

摘要

PURPOSE: A validation and fast channel change for the broadcasting system are provided to transmit data service without delay before decoding a channel to offer a video signal. CONSTITUTION: A terminal receives first data with a part of data service by using a broadcasting channel(S5.1). The terminal acquires a first signature data by processing the first data by using a signature generation algorithm(S5.2). The terminal transmits the first signature data to a content server by using a data channel(S5.3). The content server compares a signature acquired by processing the first data with a part of data service with the first signature data by using a corresponding signature generation algorithm(S5.4).