Title:
【発明の名称】暗証番号管理方法
Document Type and Number:
Japanese Patent JP2542261
Kind Code:
B2
Abstract:
PURPOSE:To prevent the discordance of a personal identification number even when an error takes place in a protocol or each equipment subjected to system- down in the case of changing the number by applying binary management to the personal identification number of an audio response unit and a center equipment having two new and old areas in the memory. CONSTITUTION:When a terminal equipment 4-1 is in system-down or a protocol error or the like takes place, the reception end is not returned from the equipment 4-1 to a center equipment 2. Since a the number (1234) of an old area (b) of the equipment 2 is not rewritten into the same number (9876) of the new area (a), discordance between the numbers of the new and old areas takes place. Even when the numbers of the new and old areas are in discordance, the terminal equipment 4-1 is restored or a protocol error takes place, since periodic connection enters, the center equipment 2 sends to number (1234) of the old area (a) to the terminal equipment 4-1 at the connection and the terminal equipment 4-1 checks the number. Then the change of the number to the new number (9876) is informed to the terminal equipment 4-1.
Inventors:
OOYA HARUMASA
TABATA CHIAKI
TABATA CHIAKI
Application Number:
JP16235389A
Publication Date:
October 09, 1996
Filing Date:
June 23, 1989
Export Citation:
Assignee:
OKI DENKI KOGYO KK
TAKENAKA KOMUTEN KK
TAKENAKA KOMUTEN KK
International Classes:
G06F21/44; G06F15/00; H04L9/32; H04M11/00; (IPC1-7): H04L9/32; G06F15/00
Domestic Patent References:
| JP622736A | ||||
| JP1307336A | ||||
| JP60250464A | ||||
| JP530103A |
Attorney, Agent or Firm:
Takashi Kumagai (1 outside)