MPEG DECODER PROVIDING MULTIPLE STANDARD OUTPUT SIGNALS

A VIDEO DECODER (121) COMPLIANT WITH THE ADVANCED TELEVISION SYSTEMS STANDARD (ATSC) INCLUDES CIRCUITRY (210, 212, 214, 218, 230) 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...

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Hauptverfasser:	EDWIN ROBERT MEYER, EDWARD BROSZ, LARRY PHILLIPS, RICHARD SITA, ROBERT T RYAN, HEE YONG KIM, GHANSHYAM DAVE, SAIPRASAD NAIMPALLY, JERELD PEARSON
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY IMAGE DATA PROCESSING OR GENERATION, IN GENERAL PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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Zusammenfassung:	A VIDEO DECODER (121) COMPLIANT WITH THE ADVANCED TELEVISION SYSTEMS STANDARD (ATSC) INCLUDES CIRCUITRY (210, 212, 214, 218, 230) 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 (121) IS OPERATED IN A SECOND MODE, CIRCUITRY (216, 232) IS USED WHICH GENERATES A STANDARD DEFINITION IMAGE FROM THE MP@HL SIGNAL. THE VIDEO DECODER INCLUDES A FREQUENCY-DOMAIN FILTER (216) TO REDUCE THE RESOLUTION OF THE MP@HL SIGNAL WHEN THE DECODER IS OPERATED IN THE SECOND MODE.