Patent ID: 9036091
Filing Date: 2015-05-19
Classification: H03J,H04N

Abstract:
1. An integrated circuit comprising: a tuner including an input for receiving a radio frequency (RF) signal including at least one of an analog television signal and digital television signal, and including a first output terminal and a second output terminal, the tuner to process the RF signal into an intermediate frequency (IF) signal including one of analog television content and digital television content, the tuner configured to selectively provide the IF signal to one of the first output terminal and the second output terminal; a digital television (DTV) demodulator including a DTV input coupled to the first output terminal of the tuner and including a DTV output terminal, the DTV demodulator configured to decode the IF signal and to provide a transport stream to the DTV output terminal; an analog television (ATV) demodulator including an ATV input coupled to the second output terminal of the tuner and including an ATV output terminal, the ATV demodulator configured to process the IF signal to recover a baseband video signal and an audio signal and to provide the baseband video and the audio signal to the ATV output terminal; and a controller coupled to the tuner, the DTV demodulator, and the ATV demodulator to configure the tuner and at least one of the DTV demodulator and the ATV demodulator for receiving television content in a selected television format, the controller configured to control clock rates and switching timing of the DTV demodulator and to control timing of the transport stream; and a host interface coupled to the controller and configurable to couple to a host system, the host interface to receive instructions from the host system that, when processed by the controller, cause the controller to reconfigure real-time signal-processing functions including at least one of a group consisting of a channel scanning algorithm and an automatic gain control timing function.