Title :
Dynamic drum (DD) tracking system for consumer VCRs
Author :
Hirayama, Hiromichi ; Kinjo, Hisao ; Mizuno, Yoshio ; Shudo, Katsuyuki ; Kawase, Shigeru ; Nakagawa, Naoyuki ; Nishima, Ryo ; Hirohata, Naoto
Author_Institution :
Victor Co. of Japan Ltd., Yokohama, Japan
fDate :
8/1/1996 12:00:00 AM
Abstract :
A development concept, an outline of mechanism and control system, and applications of a dynamic drum (DD) tracking system enabling noise-free variable speed playback for consumer VCRs are discussed. The DD system does not simply move the heads, but controls the entire drum to comprise a tracking method completely different from earlier systems. The lower drum is divided into tape sliding and lead sections, and the construction enable the relative inclination of the lead and head trace. During variable speed playback, so as to align the head trace with the recorded track, the overall drum inclination is precisely controlled
Keywords :
consumer electronics; telecommunication control; tracking; video tape recorders; consumer VCR; control system; drum inclination control; dynamic drum tracking system; noise-free variable speed playback; Azimuth; Bars; Coaxial components; Control systems; Magnetic heads; Motion control; Pneumatic actuators; Shafts; Tracking; Video recording;
Journal_Title :
Consumer Electronics, IEEE Transactions on
