The Robustness Verification for the D-VHS Trick Play Using Dynamic Measurement Method for Evaluating Mechanism

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  • MATSUMARU Masahiro
    AV & Multimedia Laboratory, AV & Multimedia Company, Victor Company of Japan, Limited
  • OHISHI Takeo
    AV & Multimedia Laboratory, AV & Multimedia Company, Victor Company of Japan, Limited
  • EINO Takesi
    AV & Multimedia Laboratory, AV & Multimedia Company, Victor Company of Japan, Limited
  • TOGO Yosiyuki
    AV & Multimedia Laboratory, AV & Multimedia Company, Victor Company of Japan, Limited
  • TSURUTA Masahiko
    AV & Multimedia Laboratory, AV & Multimedia Company, Victor Company of Japan, Limited

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Other Title
  • D-VHS特殊再生のロバストネス検証
  • Robustness Verification for the D VHS Trick Play Using Dynamic Measurement Method for Evaluating Mechanism

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Abstract

In the D-VHS MPEG2 mode, trick play data are allocated in exclusive area and the tape-running fluctuation is a serious problem. It is usual to evaluate accuracy of the mechanism by measuring a track-bend statically but difficult to evaluate actual fluctuation. We have developed a new dynamic measurement method that enables observation of the tape-running fluctuation in the trick mode as time axis fluctuation of the output signal. Using this dynamic method, we verified the required size of the trick play data area, namely the repetition times of the contents that is indispensable to maintain robustness. We also clarified the required accuracy for the mechanism and realized mass production.

Journal

  • ITE Technical Report

    ITE Technical Report 24.46 (0), 1-6, 2000

    The Institute of Image Information and Television Engineers

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