Computer system for playing DVDs has an analog TV signal transmission connection, adapted DVD playing devices and signal protection and control

摘要

A DVD playing device (10b) reads and transmits data from DVDs. An image display control device (12a) is adapted to support a TV transmission function in a computer system, to provide signal protection and to control displayed images. A signal transmission control interface (STCI) controls an analog TV signal transmission connection (16) opened by the DVD playing device through the STCI.