Video switching and signal processing apparatus

摘要

An apparatus integrates a plurality of television signal sources into a cohesive audio/video environment. Internal provisions include a standard broadcast-frequency tuner, cable tuner as well as other optional inputs such as for a direct-broadcast satellite, previously recorded video material, etc. In the preferred embodiment, means are provided whereby a main or primary program channel may be linked to additional channels providing supplementary information to enhance resolution, sound quality, or to facilitate special effects.

主权项

1. A method of automatically switching from a video program to supplemental video information at a viewer location, the method comprising the steps of:
entering, by a user at a viewer location, information regarding a viewing preference; delivering a digital video program to the viewer location from a source of digital video programs; receiving the digital video program at the viewer location over a first communication channel, the program including a pointer to an alternate communication channel carrying supplemental information directly related to the program; and automatically switching, without human intervention, from the program received over the first communication channel to the supplemental information received over the alternate communication channel using the pointer and the viewing preference.