Title :
Decoding issues in the ACTV system
Author :
Isnardi, Michael A. ; Smith, Terrence R. ; Roeder, Barbara J.
Author_Institution :
David Sarnoff Res. Center, Princeton, NJ, USA
fDate :
2/1/1988 12:00:00 AM
Abstract :
The advanced compatible television (ACTV) system is a proposal for the single-channel transmission of widescreen enhanced-definition television (EDTV) images. A widescreen high-definition source is encoded into a signal that is NTSC-compatible. Existing NTSC receivers display a selected 4:3 portion of the widescreen image with standard NTSC resolution. A new widescreen receiver is proposed, tuned to the same 6 MHz RF channel, that displays a widescreen image with a resolution in excess of 400 lines/picture height in both spatial dimensions. The encoding process is reviewed and the recovery of various signal components to produce the widescreen image in the ACTV receiver is discussed
Keywords :
decoding; encoding; television receivers; television systems; 6 MHz; ACTV system; EDTV; NTSC receivers; RF channel; advanced compatible television; decoding; encoding; single-channel transmission; widescreen enhanced-definition television; Decoding; Displays; HDTV; Image coding; Image resolution; Proposals; Radio frequency; Signal resolution; Spatial resolution; TV;
Journal_Title :
Consumer Electronics, IEEE Transactions on
