论文信息 - Beyond 1 mu m/sup 2//bit high density recording with improved QAM technique

Beyond 1 mu m/sup 2//bit high density recording with improved QAM technique

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 mu m/bit is accomplished by using a metal evaporated (ME) video tape. The magnetic head has a track-width of 5.7 mu m. >

Masaaki Kobayashi | Haruo Ohta | Etsuto Nakatsu | Hiroaki Shimazaki | Y. Nagaoka

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