Abstract: A network system includes a network that detects the presence of a remote terminal connected to a network and determines the functional protocol of the remote terminal. If the remote terminal is an infrared adapter, the network hub provides electrical power to the infrared adapter and continually monitors for the presence of the infrared adapter. Upon removal of the infrared adapter, the network removes electrical power that is applied to a user interface connector that connects to the infrared adapter. If another protocol is detected for the remote terminal, the network hub communicates with the remote terminal in that protocol and converts the data to the protocol of the network.

Abstract: A closed caption processing system processes a television signal having caption data therein. A detector receives the television signal. A decoder coupled to the detector receives the television signal, and removes the caption data from the signal to form a stripped video signal and a caption data signal. The stripped video signal is provided to a television. The closed caption data is displayed as text on a screen. A microcontroller receives the caption data from the decoder and provides the caption text to the screen. The caption text is updated unless the microcontroller receives a user selected command for freezing the displayed text. The user enters user selected commands for selecting a portion of the displayed text. A memory stores a dictionary that includes either definitions or translations of text or both. The microcontroller retrieves either the definition or translation of a selected portion of the text responsive to a user request, and then displays the definition or translation.