Terminal device

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United States of America Patent

PATENT NO 8897620
SERIAL NO

13460161

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A terminal device determines whether a clock is a secure clock or a self-running clock. If the clock is the self-running clock, the device stores a clocking time of the clock as a timestamp file in a memory card in recording content. In playing back the content, the device determines validity of a clocking time using the timestamp file to play back the content and also updates the stored time of the stored time as the timestamp file to a content playback start time. In contrast, if the clock is the secure clock, the device stores the timestamp file indicating a recording time of the content in the memory card only in recording the content and omits updating the stored time as the timestamp file in playing back the content.

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Patent Owner(s)

  • KABUSHIKI KAISHA TOSHIBA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sato, Jun Kawasaki, JP 625 8992
Terauchi, Toru Tokyo, JP 25 489

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