Title:
【発明の名称】機密保護接続方式
Document Type and Number:
Japanese Patent JP2725276
Kind Code:
B2
Abstract:
PURPOSE:To more completely execute secret security by connecting a terminal to execute a re-call to be registered beforehand in response to the storage of a called fact and a central processing unit. CONSTITUTION:A called fact detecting circuit 62 detects the called fact to contain access conditions from a terminal 10, a called fact storage flip-flop 63 stores it temporarily, and a connection is released once. An automatic folded telephone circuit 61 compares the conditions to be stored beforehand and the conditions contained in the called fact from the terminal 10, and when they coincide, an activated call to instruct the re-call to the terminal 10 is generated. When the re-call is executed from the terminal 10 to the activated call, an OR circuit 64 and an AND circuit 65 as connecting means execute the connection between the terminal 10 and a central processing unit 80. Thus, the connection only to the specific terminal to be registered beforehand so as to execute the re-call according to the activated call is executed, and the secret security can be more completely executed.
Inventors:
TAZAKI TOSHIAKI
Application Number:
JP8361488A
Publication Date:
March 11, 1998
Filing Date:
April 05, 1988
Export Citation:
Assignee:
NIPPON DENKI KK
International Classes:
H04M11/00; H04L9/00; H04L9/32; H04L9/36; (IPC1-7): H04L9/32; H04L9/36
Domestic Patent References:
| JP62126758A |
Attorney, Agent or Firm:
Naotaka Ide