ISDB, which stands for Integrated Services Digital Broadcasting, is a digital broadcasting standard used for terrestrial television and radio. It was developed by a consortium of broadcasting and technology companies to provide enhanced audiovisual services to viewers worldwide. ISDB follows a system of transmission and reception that is based on digital modulation techniques, allowing for higher quality video and audio compared to traditional analog broadcasting systems.
The ISDB standard encompasses various technologies to offer a comprehensive multimedia experience. It includes video, audio, and data transmission, as well as interactive services and advanced functions such as high-definition television (HDTV) and mobile reception capabilities. ISDB employs the MPEG-2 video and audio coding to compress and decompress video signals, ensuring efficient transmission and storage.
One of the notable features of ISDB is its ability to provide multiple channels within a single frequency, known as "multi-segment transmission." This allows broadcasters to deliver diverse content options simultaneously, expanding viewers' choices and facilitating the efficient use of scarce radio frequencies.
Furthermore, ISDB supports interactive features through its data broadcasting capabilities. Viewers can access additional information, participate in polls, play games, and obtain real-time updates on various topics, all while watching television. This interactivity enhances the viewer experience and enables broadcasters to engage with their audience in novel ways.
In summary, ISDB is a digital broadcasting standard that enables high-quality audiovisual transmission and a range of interactive services. It revolutionizes the traditional television and radio experience by providing enhanced multimedia features, increased content options, and improved viewer engagement.
