Message protection radio display paging using confidential code and password

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United States of America Patent

PATENT NO 5798708
SERIAL NO

08662366

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In a radio display paging system, a transmitted paging signal either contains an optional confidential code and a message if the message is confidential or exclusively a non-confidential message. When the paging signal is received by a destination pager, the message contained in it is stored in a message memory. If the received signal contains a confidential code, a prompt is displayed for urging a user to enter a password, and the message in memory is scrambled. If the entered password is valid, the message in memory is descrambled and displayed.

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Patent Owner(s)

  • NEC CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Katayama, Hideyuki Shizuoka, JP 6 26

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