Title :
Professional HDTV digital recorder
Author_Institution :
Central Res. Lab., Hitachi Ltd., Tokyo, Japan
fDate :
1/1/1992 12:00:00 AM
Abstract :
Some of the essential technology for record/playback systems in professional HDTV digital recorders is described. The full bandwidths of 1125/60 HDTV signals (30 MHz for luminance and 15 MHz each for the two color difference signals) were recorded. An 8-8 mapping channel code and integrated detection were used. A special phase locked loop (PLL) to cope with picture search functions was developed. At the high data rate of 148.5 Mb/s per channel and the high linear density of 0.345 μm per bit, the recorder operates with a word error rate of less than 10-4
Keywords :
digital communication systems; high definition television; video signals; video tape recorders; 148.5 Mbit/s; 15 MHz; 30 MHz; 60 Hz; 8-8 mapping channel code; HDTV signals; PLL; VTR; bandwidths; color difference signals; data rate; linear density; luminance; phase locked loop; picture search functions; professional HDTV digital recorders; record/playback systems; word error rate; Bandwidth; Bit rate; Digital recording; Error analysis; Guidelines; HDTV; Magnetic heads; Signal to noise ratio; TV; Video recording;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
