Abstract: An apparatus comprising a transmodulator unit. The transmodulator unit generally comprises (i) a first input configured to receive a baseband video signal, (ii) a second input configured to receive a first encoded data signal and (iii) an output configured to present a second encoded data signal. The second encoded data signal is generated in response to the first encoded data signal and the baseband video signal. The first encoded data signal comprises an advanced data signal. The second encoded data signal comprises a legacy data signal.

Abstract: An apparatus comprising a transmodulator unit. The transmodulator unit generally comprises (i) a first input configured to receive a baseband video signal, (ii) a second input configured to receive a first encoded data signal and (iii) an output configured to present a second encoded data signal. The second encoded data signal is generated in response to the first encoded data signal and the baseband video signal. The first encoded data signal comprises an advanced data signal. The second encoded data signal comprises a legacy data signal.

Abstract: An apparatus comprising a set-top box and a conversion circuit. The set-top box may be configured to generate output signals in response to a first encoded data signal. The conversion circuit may be configured to present the first encoded data signal in response to a second encoded data signal received from an external source. The first encoded data signal comprises a legacy signal and the second encoded data signal comprises an advanced data signal.

Abstract: The present invention relates to an improved demodulator for locking onto and tracking a carrier. Harmonic frequencies are occasionally generated by demodulation circuitry. When this occurs, the harmonic frequencies can interfere with the demodulator's locking and tracking functions, especially if the harmonic frequencies are near a down converted carrier's frequency. A system and method are disclosed which provides an offset to a frequency synthesizer whose output frequency is used to down convert the carrier. The offset alters the frequency of the down converted carrier so as to shift it away from the interfering harmonics. In this regard, the demodulator is enabled to lock onto and track a carrier when previously not possible.