Television upconverter structures

Upconverter structures are provided that generate selected television signals with digital upconverters that are coupled between analog-to-digital converters and digital-to-analog converters. Embodiments of the digital upconverters generally include at least one digital quadrature modulator that fac...

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1. Verfasser: CAMP JAMES C
Format: Patent
Sprache:eng
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Zusammenfassung:Upconverter structures are provided that generate selected television signals with digital upconverters that are coupled between analog-to-digital converters and digital-to-analog converters. Embodiments of the digital upconverters generally include at least one digital quadrature modulator that facilitates the conversion of digital intermediate-frequency sequences to digital broadcast sequences and further include at least one digital interpolation filter that facilitates the conversion of an input sample rate to an output sample rate.