Digitally controlled transmission impairment measuring apparatus

Communications: electrical – Digital comparator systems

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

1791753R, 235302, G08C 2500, G06F 1100

Patent

active

041059956

ABSTRACT:
A portable microprocessor controlled transmission impairment measuring unit capable of operating as a master unit or a slave unit and responsive to digital or manual control measures all basic parameters necessary to characterize a voice channel for its ability to transmit data traffic, as defined by Bell System Technical Reference PUB41009, dated May 1975. Measurements can be made manually end-to-end with a unit at each end of a circuit to be tested; manually looped-back with a unit at one end of the circuit; or remotely from one end with a MASTER operated unit controlling a SLAVE operated unit with all measurements displayed on the MASTER unit. The unit can also be used as a voice frequency repeater and can be operated with other test sets and computers having compatible measurements and capabilities.
All measurements are displayed on digital readouts. Two separate readouts allow simultaneous display of up to two different parameters. The displays can be selected to show either transmitted or received information. Measurement unit annunciators beside each readout automatically show an operator the measurement displayed. Ranging, decimal placement, and polarity are all completely automatic. Remote control capabilities of the unit allow measurement of specified line parameters on a common carrier telephone channel with complete control and display provided at a selected end of a line under test.

REFERENCES:
patent: 3525077 (1970-08-01), Jablonski
patent: 3564509 (1971-02-01), Perkins et al.
patent: 3678379 (1972-07-01), Arvay et al.
patent: 3814869 (1974-06-01), De Luca
patent: 3890495 (1975-06-01), Bauer et al.
patent: 3910322 (1975-10-01), Hardesty, Jr. et al.
patent: 3958111 (1976-05-01), Hackett
patent: 3969594 (1976-07-01), DeLuca et al.
patent: 3980839 (1976-09-01), Hutcheson
patent: 4001559 (1977-01-01), Osborne et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Digitally controlled transmission impairment measuring apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digitally controlled transmission impairment measuring apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digitally controlled transmission impairment measuring apparatus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-922123

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.