A digital VCR deck mechanism using new precision actuators for high density recording

Mori, K.; Tomita, Masami; Shige-eda, T.; Kokubo, Kenichi; Nakagawa, K.; Nagasawa, Masato; Yokoyama, Eiji

doi:10.1109/30.234598

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Helical Scan Cartridge Systems2

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1996

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Cited by 2 publications

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“…The low frequency band of the output from the observer is used for feedback to control the supply reel motor while the high frequency band is used for feedback to control a voice coil that mounted on the position sensor arm. By using this scheme, a factor of 30 reduction in tension variation was achieved in the digital VCR transport described in [6].…”

Section: Helical Scan Cartridge Systemsmentioning

confidence: 99%

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<title>Survey of digital tape transport servo systems</title>

Mathur

Messner

1996

SPIE Proceedings

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As the data storage density continues to grow, high performance tape iransports are needed for fine positioning and transport of the media over the read and write heads. This paper presents a survey of digital tape transport servo systems for four popular types of drives: (i) reel to reel drives; (ii) single cartridge drives; (iii) helical scanning drives; and (iv) belt-driven drives. Concepts behind velocity, tension and tracking control employed in production drives are discussed and references to pertinent research cited. Techniques used to measure error in the parameters under servo control are presented.

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Section: Helical Scan Cartridge Systemsmentioning

confidence: 99%

“…The operation of a tension controller presented in [6] is briefly described below. A guide is mounted on a position sensor arm such that when the tape passes over the guide, tension variations in the tape cause movement of the arm.…”

Section: Helical Scan Cartridge Systemsmentioning

confidence: 99%