G - Physics – 08 – C
Patent
G - Physics
08
C
340/73, 354/225.
G08C 25/00 (2006.01) H04M 3/32 (2006.01)
Patent
CA 1054258
ABSTRACT OF THE DISCLOSURE A communications line under test intercouples programmable local units, one of which transmits an analog waveform to the other in response to digital control signals received from a computer. The receiving programmable local unit transmits a digital signal to the computer representative of the received analog signal to thereby enable the computer to determine transmission characteris- tics of the communications line intercoupling the programmable local units.
241754
Harrison John M.
Hillman Alfred K. (jr.)
Osborne Deane C.
Na
Northern Telecom Inc.
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