| 摘要 |
PROBLEM TO BE SOLVED: To provide a system for multiplexing a plurality of digital services including auxiliary data services. SOLUTION: In a video system for processing compressed video data to obtain composite video data corresponding to a standard composite video signal form selected out of a plurality of standard forms, the system includes a processor 34, and a standard video expander 32 for obtaining expanded video data resulting from processing compressed data, and user data. VBI (vertical blanking interval) data are encoded to the user data and the processor 34 extracts the VBI data from the user data. A video interface 40 processes the expanded video data and the VBI data to provide composite video data. A video interface 40 is equipped with a VBI data generator for processing the VBI data to obtain VBI signal data, and a mixer for receiving the expanded video data and the VBI signal data to generate output Y, U, V data in a term of an active video portion of a scan line. COPYRIGHT: (C)2004,JPO&NCIPI |
