Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Parameter related to the reproduction or fidelity of a...
Patent
1990-09-24
1991-11-05
Wieder, Kenneth A.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Parameter related to the reproduction or fidelity of a...
324603, 324 77R, 379 6, 379 24, G01R 2700, G01R 2316
Patent
active
050633511
ABSTRACT:
An arrangement of digital circuitry is disclosed for testing a cable communication system to determine its performance when subjected to near-end cable crosstalk. The circuitry digitally generates a crosstalk signal indicative of the combined effect of one or more interfering sources and the near-end crosstalk coupling path linking the interfering sources with the system-under-test. The circuitry includes a pseudo-noise sequence generator for producing a stream of bits that are normally distributed and a digital filter, responsive to the sequence generator, for implementing a frequency characteristic corresponding to the spectral content of the interfering source as weighted by the near-end crosstalk path.
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Hewlett-Packard-1983 Catalog-pp. 508-510-Model 3582A Analyzer.
"Suggested Testing Plan to Determine Line Code Performance", Bell Communications Research, Inc., T1D1.3 Contribution 86-095, Jun. 9, 1986.
"Near-End Crosstalk Model For Line Code Studies", Bell Communications Research, Inc., T1D1.3 Contribution 85-244, Nov. 12,1985.
Goldthorp Jeffery M.
Yeomans James S.
Bell Communications Research Inc.
Peoples John T.
Solis Jose M.
Suchyta Leonard Charles
Wieder Kenneth A.
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