Pulse or digital communications – Repeaters – Testing
Patent
1992-10-14
1993-12-21
Kuntz, Curtis
Pulse or digital communications
Repeaters
Testing
328114, 307356, 342197, H03K 522
Patent
active
052727254
ABSTRACT:
A digital video quantizer for use in TCAS and ATCRBS/SIF systems. A digital delay receives a digitized video signal and produces a plurality of delayed digital signals which are used throughout the quantizer. A threshold generator then produces a predetermined threshold and a dynamic threshold, and a quantized video generator compares one of the delayed digitized signals to a threshold to produce a quantized video signal. A slope quantizer detects a slope of the digitized signal which exceeds either a positive or negative threshold. In addition, a rise time detector detects an excessive rise time in the digitized video signal, and a chip amplitude comparator provides a signal which is used in detecting Mode S data bit values. The digital video quantizer's use of digital references rather than analog references, eliminates the inaccuracies caused by a reference voltage varying over time or temperature. The digital references also facilitate modification of the reference values at a later time.
REFERENCES:
patent: 3188629 (1965-06-01), Humpherys
patent: 3415950 (1968-12-01), Bartz et al.
patent: 3696415 (1972-10-01), Ballantyne
patent: 3705402 (1972-12-01), Ballantyne et al.
patent: 3713022 (1973-01-01), McRay
patent: 3732563 (1973-05-01), Nelson
patent: 3746982 (1973-07-01), Allington et al.
patent: 4044352 (1977-08-01), Wilmot
patent: 4161628 (1979-07-01), McRae
patent: 4387465 (1983-06-01), Becker
patent: 4395773 (1983-07-01), Philippides et al.
patent: 4479266 (1984-10-01), Eumurian et al.
patent: 4654862 (1987-03-01), Camborde et al.
patent: 4796030 (1989-01-01), Colotti et al.
patent: 4899157 (1990-02-01), Sanford et al.
Jones James B.
Kyriakos Constantinos S.
Mandujano Celeo R.
Venkataraman Vasan
Allied-Signal Inc.
Kuntz Curtis
Massung Howard G.
Tse Young
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