Transmitting and receiving apparatus and method, computer program, and broadcasting system with speech to sign language conversion

摘要

The transmitting apparatus includes an encoder creating an encoded content signal by encoding the content, a generator generating sign language word identification information corresponding to chronologically-ordered sign language words appearing in a speech in the content, a creating unit creating control information containing the generated chronologically-ordered sign language word identification information, a storage unit storing sign language word images for displaying a sign language video corresponding to the sign language words by grouping the sign language word images into a plurality of modules according to a frequency of appearance of the sign language words in the speech in the content, a multiplexer creating a data stream by combining the encoded content signal with the control information and by repeatedly replicating the plurality of modules at a frequency corresponding to the frequency of appearance, and a transmitter transmitting the created data stream.