Title :
Beyond 1μm2/bit high density recording with improved QAM technique
Author :
Kobayashi, M. ; Nakatsu, E. ; Shimazaki, H. ; Ohta, H. ; Nagaoka, Y.
Author_Institution :
Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
fDate :
8/1/1991 12:00:00 AM
Abstract :
A novel quadrature amplitude modulation (QAM) recording method developed for channel coding of a digital VCR is reported. By using an improved coded 16 QAM method, a recording density as high as 0.95 μm/bit is accomplished by using a metal evaporated (ME) video tape. The magnetic head has a track-width of 5.7 μm
Keywords :
amplitude modulation; encoding; video tape recorders; channel coding; high density recording; home-use digital VCR; improved QAM technique; metal evaporated video tape; trellis coded 16-QAMs; Amplitude modulation; Binary codes; Channel coding; Digital recording; Magnetic heads; Modulation coding; Phase modulation; Phase shift keying; Quadrature amplitude modulation; Video recording;
Journal_Title :
Consumer Electronics, IEEE Transactions on
