System for maintenance and diagnosis of mobile telephone equipme

Details System for maintenance and diagnosis of mobile telephone equipme System for maintenance and diagnosis of mobile telephone equipme

1983-11-10

1985-11-19

Rubinson, Gene Z.

179 2EB, H04Q 704

Patent

active

045544107

ABSTRACT:
For maintenance and diagnosis of mobile telephone equipment carried on a vehicle such as a car, ship or airplane, an input/output port of a control unit for effecting desired controlling and processing for individual parts of the mobile telephone equipment on the basis of stored program control is inputted with test mode information in the form of a logic signal supplied manually or a specified dial number signal supplied by dialing a telephone unit so as to switch the mobile telephone equipment to a test mode. Thereafter, a predetermined test instruction and a predetermined additional data are inputted to the input/output port by dialing the telephone unit. The control unit then reads the instruction and data to select and execute a desired, predetermined test program. A result of the execution is indicated on an indicator of the telephone unit for maintenance and diagnosis.

REFERENCES:
patent: 4415770 (1983-11-01), Kai et al.
patent: 4443661 (1984-04-01), Kubo

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