Title:
OPERATION PROGRAM CHANGEOVER METHOD FOR COMMUNICATION PROCESSING UNIT
Document Type and Number:
Japanese Patent JP2583169
Kind Code:
B2
Abstract:
PURPOSE: To changeover an operation program without interruption of communication by continuing the processing of an old program for a call received before input restriction and executing a changeover procedure to a new program after that.
CONSTITUTION: In the communication processing unit provided with line adaptor interface devices 20, 21 accommodating a communication line 30 and processing units 10, 11 including a processor CPU, when the operation program is changed over, input is restricted to the devices 20, 21. Then as to a call received before the input restriction, the processing of an old program is continued for a time the call processing is executed and finished. Then the changeover procedure from the old program to a new program is executed after lapse of the said time and then the restriction of an input call is released. Thus, it is avoided that a call once received is interrupted on the way of connection or during communication, and the operation program is changed over without interrupting the communication.
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Inventors:
ODA SHIGEKI
ISHIMOTO HIDETAKA
FUJITA KATSUTAKA
ISHIMOTO HIDETAKA
FUJITA KATSUTAKA
Application Number:
JP4371192A
Publication Date:
February 19, 1997
Filing Date:
February 28, 1992
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
G06F9/46; G06F9/54; H04L12/70; H04L29/10; H04Q3/545; H04Q11/04; (IPC1-7): H04L12/56; G06F9/46; H04L29/10; H04Q3/545; H04Q11/04
Domestic Patent References:
JP176323A | ||||
JP3214843A | ||||
JP380734A | ||||
JP2206264A |
Attorney, Agent or Firm:
Naotaka Ide (1 person outside)
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