Patent ID: 8203653

Claim:
An integrated circuit device, coupled to a signal source that receives a broadcast spectrum from an electrically or optically conductive medium, to output video signals corresponding to a selected channel which is one of a plurality of channels of the broadcast spectrum, the integrated circuit device comprising: tuner circuitry, coupled to the signal source, to receive a broadcast-frequency analog video signal, having timing information embedded therein, and to output a video signal which corresponds to the selected channel of the broadcast spectrum, the tuner circuitry including: amplifier circuitry, coupled to the signal source, to generate and output an amplified representation of at least a portion of the broadcast-frequency analog video signal; mixing circuitry, coupled to the amplifier circuitry, to receive the amplified representation of at least a portion of the broadcast-frequency analog video signal and to generate a first signal having an in-phase component and a quadrature component, wherein the mixing circuitry mixes the amplified representation of at least the portion of the broadcast-frequency analog video signal with a complex sinusoidal signal having a frequency which is at least substantially equal to a frequency which is associated with the selected channel of the broadcast spectrum; local oscillator circuitry, coupled to the mixing circuitry, to generate and output the complex sinusoidal signal; and baseband demodulator circuitry, coupled to the mixing circuitry, to generate and output a baseband video signal, which corresponds to the selected channel, using the first signal; and video decoder circuitry, coupled to the baseband demodulator circuitry, to generate and output a formatted video signal, which corresponds to the selected channel of the broadcast spectrum, using the baseband video signal, the video decoder circuit being configured to provide a timing signal to the tuner circuitry for generating a cancellation signal.