Title :
A study of the recording and reproducing system of digital VCR using metal evaporated tape
Author :
Shimotashiro, Masafumi ; Tokunaga, Masashi ; Hashimoto, Kiyokazu ; Ogata, Shigeyuki ; Kurosawa, Yasuyuki
Author_Institution :
Audio & Video Res. Lab., Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
fDate :
8/1/1995 12:00:00 AM
Abstract :
We obtain high density recording, 263 Mbpi2, using metal evaporated tape and a new automatic equalizer, which consists of a new analog detector and a new analog delay circuit. We also describe how to decide the optimum recording current to satisfy the electromagnetic characteristics; output level, overwrite ratio and waveform asymmetry (a special problem of metal evaporated tape)
Keywords :
analogue circuits; delay circuits; detector circuits; digital magnetic recording; equalisers; metals; video recording; video tape recorders; analog delay circuit; analog detector; automatic equalizer; digital VCR; electromagnetic characteristics; high density recording; metal evaporated tape; optimum recording current; output level; overwrite ratio; recording system; reproducing system; waveform asymmetry; Audio recording; Azimuth; Digital recording; Electromagnetic scattering; High definition video; Magnetic flux; Magnetic heads; Magnetic recording; Video recording; Writing;
Journal_Title :
Consumer Electronics, IEEE Transactions on
