Information processing apparatus and control method thereof

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United States of America Patent

PATENT NO 9336744
APP PUB NO 20140340530A1
SERIAL NO

14275986

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Abstract

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An information processing apparatus for determining polarity of a vertical synchronizing signal, in an effective state, included in a video signal measures a duration in which the vertical synchronizing signal maintains the same polarity, obtains the polarity of the vertical synchronizing signal when the measured duration exceeds a predetermined duration, and determines the polarity of the vertical synchronizing signal in the effective state based on the obtained polarity.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kawaoka, Shigeo Tokyo, JP 3 7
Takamura, Akihiro Kokubunji, JP 36 175

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