Tracking activation of licensable components in audio-video equipment with a unique product identification code

摘要

A TV with various licensable components including, e.g., an ATSC demodulator requests a license for a component upon detection of a physical condition implicating use of the component, such as plugging a cable into a particular port, or upon receipt of a user-input command requiring use of the component, such as a request to autoscan channels.