Hdtv downconversion system

摘要: A video decoder compliant with the Advanced Television Systems Standard (ATSC) includes circuitry which decodes an ATSC encoded image and employs a downconversion process to produce standard definition signal. The frequency-domain filter reduce resolution of system also formatting section having vertical horizontal filters, as well resampling processing, format decoded downconverted for particular display aspect ratio. senses signal changes processing provided by output regardless input converter may be programmed use plurality methods convert ratio on device different In one mode, sequences through possible allow user select method.