作者: Yoshihiro Nishida
DOI:
关键词: Detector 、 Tape head 、 Display device 、 Rotation 、 Signal 、 Acoustics 、 Electrical engineering 、 Pulse (physics) 、 Materials science 、 Rotation period 、 Reel
摘要: A tape time display apparatus according to the invention includes a device for outputting predetermined number of pulse signals one rotation reel on which is wound, detector detecting period from when travels at constant speed, unit calculating periods, travel speed and thickness corresponding length reel, increasing or decreasing direction pulses output accompanying tape, time, obtained by converting constant-speed into P signal input, displaying thus calculated.