Patent ID: 7890048

Claim:
A transmitting apparatus, comprising: a plurality of audio channel material supplying means for supplying a plurality of broadcast audio materials formed of digital audio data; data supplying means for supplying digital data for an audio information screen associated with one or more of the broadcast audio materials, said digital data including interactive GUI data used to generate an interactive onscreen display to allow interaction between a user and the display; download audio data supplying means for supplying download audio data corresponding to the one or more of the broadcast audio materials that are compressed in a predetermined compressing format; multiplexing means for multiplexing the digital audio data of the plurality of audio broadcasts, the associated digital data for the audio information screen, and the corresponding download audio data to form multiplexed data having an audio broadcast component, a digital data for audio information screen component, and a download audio data component; and transmitting means for transmitting the multiplexed data such that each one of the audio broadcast component, the digital data for audio information screen component, and the download audio data component is transmitted completely at least twice within a program period, wherein the digital audio data has a first sound quality and the download audio data has a second sound quality that is of a higher quality than the first sound quality.