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Patent Searching and Data


Title:
INTERCEPTING SYSTEM
Document Type and Number:
Japanese Patent JPH03167940
Kind Code:
A
Abstract:

PURPOSE: To surely secure privacy of a message between users by storing the message to a store device corresponding to a password added thereto and reading only a relevant message based on the password in a message reception request signal and sending the message to a called terminal equipment.

CONSTITUTION: When information representing the reception disable state of a called terminal equipment 17 and the enable state of intercept reception is returned from a controller 22 of a called exchange 4, a caller exchange 3 connects a caller terminal equipment 16 to a message transmitter-receiver 9 and the controller 22 of the called exchange 4 stores the information to relevant buffers 19-21 of a store device 18. When the called terminal equipment 17 sends a message reception request signal RQ1 added with a password '1', the controller 22 reads a message M1 added with the password '1' stored in the buffer 20 of the store device 18 and sends the message to the called terminal equipment 17.


Inventors:
ETSUNO MASAYUKI
TANIGUCHI JUN
ARAYA KAZUNORI
Application Number:
JP30804589A
Publication Date:
July 19, 1991
Filing Date:
November 28, 1989
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H04L12/54; H04L12/58; (IPC1-7): H04L12/54; H04L12/58
Attorney, Agent or Firm:
Hiroaki Tazawa (2 outside)