MPEG decoder providing multiple standard output signals

A video decoder compliant with the Advanced Television Systems Standard (ATSC) includes circuitry which, when the decoder is operated in a first mode, decodes a Main Profile, High Level (MP@HL) image to produce a high-definition video output signal and decodes a Main Profile, Main Level (MP@ML) sign...

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Hauptverfasser: DAVE GHANSHYAM, SITA RICHARD, NAIMPALLY SAIPRASAD, PEARSON JERELD, KIM HEE-YONG, RYAN ROBERT T, MEYER EDWIN ROBERT, PHILLIPS LARRY, BROSZ EDWARD
Format: Patent
Sprache:eng
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Zusammenfassung:A video decoder compliant with the Advanced Television Systems Standard (ATSC) includes circuitry which, when the decoder is operated in a first mode, decodes a Main Profile, High Level (MP@HL) image to produce a high-definition video output signal and decodes a Main Profile, Main Level (MP@ML) signal to produce a standard definition video signal. In addition, when the decoder is operated in a second mode, circuitry is used which generates a standard definition image from the MP@HL signal. The video decoder includes a frequency-domain filter to reduce the resolution of the MP@HL signal when the decoder is operated in the second mode.