From Analog to Digital An introduction to HDTV. Analog… (review) 6 MHz signal Scan lines Shadow mask Poor resolution Digital to analog conversion (satellites,

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Presentation transcript:

From Analog to Digital An introduction to HDTV

Analog… (review) 6 MHz signal Scan lines Shadow mask Poor resolution Digital to analog conversion (satellites, DVDs, etc…)

HDTV: High Definition Television High-resolution digital television (DTV) 480i - 640x480 pixels interlaced 480p - 640x480 pixels progressive 720p x720 pixels progressive 1080i x1080 pixels interlaced

MPEG-2 Moving Picture Experts Group 6 MHz bandwidth for analog TV Compression: Encoding and decoding

HDTV Stations First: WRAL-HD in Raleigh, NC All: FCC mandated by 2006 Effects Consumers/communities Broadcasters Cable

HDTV Diffusion Nov 1998 to May 1999 Nov 1999 May 2002May 2006

Differences from Analog Higher resolution Formats and standards Aspect ratio, Wider, CD quality sound, downloads

Consumer Concerns Televisions Compatibility DVD and HDVD Digital cable and DBS Conversion

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