Title:
SECURITY SYSTEM
Document Type and Number:
Japanese Patent JPS62260260
Kind Code:
A
Abstract:
PURPOSE:To prevent the damage caused by the surreptitious use of an ID by collating the user identifying signal supplied from a terminal with the MODEM identifying signal produced by a MODEM. CONSTITUTION:When an access is given to a center station from a terminal station, the MODEM 4 of the center station gives a request to the terminal station for the transmission of a MODEM ID. Receiving this transmission request, a MODEM 2 transmits the MODEM ID given to the MODEM 2 itself. Receiving this MODEM ID, a MODEM 4 checks whether or not the MODEM ID belongs to a terminal station having an access right. When it is decided that said terminal station has the access right, an acknowledge is sent to the terminal station. The MODEM 2 receives the acknowledge and sends the signal to a terminal 1 to show the permission of communication to give a request for the input of a user ID. Then the user ID is supplied from the terminal 1 and received by a data base 5 and the processor of the base 5 checks whether the user ID has an access right or not. Then an acknowledge is sent back to the terminal station if it is confirmed that the user ID has an access right.
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Inventors:
EGUCHI MIKIRO
Application Number:
JP10407786A
Publication Date:
November 12, 1987
Filing Date:
May 06, 1986
Export Citation:
Assignee:
NEC CORP
International Classes:
G06F12/00; G06F21/44; G06F21/62; (IPC1-7): G06F9/06; G06F12/00; G06F13/00; G06F15/00
Domestic Patent References:
| JPS5585966A | 1980-06-28 |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)