Patent ID: 8077262

Claim:
An integrated circuit device, coupled to a signal source that receives a broadcast spectrum from an electrically or optically conductive medium, to output formatted 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 baseband video signal which corresponds to the selected channel of the broadcast spectrum, the tuner circuitry including: amplifier circuitry, coupled to the signal source, to output a first signal which is an amplified representation of at least a portion of the broadcast-frequency analog video signal; local oscillator circuitry, coupled to the amplifier circuitry, to generate and output a local oscillator signal, wherein the local oscillator signal includes a frequency which is associated with the selected channel; detector circuitry, coupled to the local oscillator circuitry, to generate and output a second signal using the first signal, the local oscillator signal and a cancellation signal, wherein the second signal includes an in-phase component and a quadrature component; cancellation circuitry, coupled to the detector circuitry, to dynamically generate the cancellation signal which is associated with the selected channel, wherein the cancellation signal is a substantially time-invariant signal; baseband demodulator circuit, coupled to the detector circuitry, to output a baseband video signal, which corresponds to the selected channel, using the second signal; and video decoder circuitry, coupled to the receiver circuitry, to receive the baseband video signal and output the first formatted video signal corresponding to the selected channel of the broadcast spectrum, the video decoder circuitry including: processing circuitry, coupled to the baseband demodulator circuit, to process the baseband video signal, the processing circuitry including: luma circuitry to generate a third signal using the baseband video signal, wherein the third signal is representative of a luma signal corresponding to the selected channel; and chroma circuitry to generate a fourth signal using the baseband video signal, wherein the fourth signal is representative of a chroma signal corresponding to the selected channel; timing recovery circuitry, coupled to the tuner circuitry, to generate a timing signal using the timing information within the broadcast-frequency analog video signal, the timing recovery circuitry is configured to provide the timing signal to the cancellation circuitry; and format circuitry, coupled to the processing circuitry, to generate and output the formatted video signal, corresponding to the selected channel, using the third signal, fourth signal and timing signal.