Program execution device

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United States of America Patent

PATENT NO 8874938
SERIAL NO

13952244

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A program execution device capable of protecting a program against unauthorized analysis and alteration is provided. The program execution device includes an execution unit, a first protection unit, and a second protection unit. The execution unit executes a first program and a second program, and is connected with an external device that is capable of controlling the execution. The first protection unit disconnects the execution unit from the external device while the execution unit is executing the first program. The second protection unit protects the first program while the execution unit is executing the second program.

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Patent Owner(s)

  • PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harada, Shunji Osaka, JP 102 2293
Hirota, Teruto Osaka, JP 71 1256
Matsushima, Hideki Osaka, JP 231 4559
Shoda, Yukie Osaka, JP 36 285

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