Interactive TV applications: standard APIs for digital TV receivers

摘要

With advanced analog cable settop boxes, early digital satllite boxes and recently with digital set-top boxes, television viewers are getting used to more than just audio-visual (A/V) content. Tnhanced broadcast includes graphical and data ehancements to the specific A/V program, such as additional text, graphics, user choices, teleshopping, etc. Standalone applications such as electronic program guides are becoming a norm. All current deployment of such systems is based on proprietary solutions.