Method and apparatus for testing analog-to-digital and digital-t

Details Method and apparatus for testing analog-to-digital and digital-t Method and apparatus for testing analog-to-digital and digital-t

1978-11-20

1981-05-05

Stewart, David L.

Multiplex communications

Wide area network

Packet switching

371 25, H04J 314

Patent

active

042662923

ABSTRACT:
An apparatus and method for testing for faults in an analog-to-digital (A/D) section and a digital-to-analog (D/A) section of a code converter in a digital time division, multiplex telecommunications system are disclosed. The A/D section is tested by connecting a digital test pattern via the switching network to the D/A section and monitoring for faults by comparing the resulting output to a reference value. The A/D section is tested by interconnecting the A/D section to be tested between a first previously tested D/A section and a second previously tested D/A section and then connecting the digital test pattern to the first D/A section while monitoring the output of the second D/A section for faults.

REFERENCES:
patent: 3057972 (1962-10-01), Mann
patent: 3154738 (1964-10-01), Greene
patent: 3499994 (1970-03-01), Lord
patent: 3683115 (1972-08-01), Schellenberg
patent: 3787628 (1974-01-01), Van Dijk
patent: 3892923 (1975-07-01), Ranner
patent: 4156110 (1979-05-01), Keeney

Affiliated with

Also associated with

Rating

Method and apparatus for testing analog-to-digital and digital-t does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for testing analog-to-digital and digital-t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for testing analog-to-digital and digital-t will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-299153