Pulse or digital communications – Systems using alternating or pulsating current
Reexamination Certificate
2005-03-23
2009-10-20
Wang, Ted (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
C375S222000, C370S201000, C379S417000
Reexamination Certificate
active
07606315
ABSTRACT:
In a communication medium including a first set A of n communication channels and a second set U of m communication channels, a method for selecting sensor channels in A for quantifying crosstalk from U, including operating A in a receive-only mode (FIG.2Step of Initialize Modem pool A. Work in receive-only mode.), choosing a subset S1of A, estimating the expansion coefficients of A as a predefined function of subset S1and signals received by A (FIG.2Step of Choose a set S1of m modems in A and estimate the expansion coefficients gjjof modems in A relative to S1), choosing a candidate subset S2of size m of A where the determinant of a matrix of the expansion coefficients corresponding to the subset S2is greater than that of the expansion coefficients corresponding to any other subset of size m of A divided by a predefined bound D (FIG.2Step of Choose an initial candidate subset S2where det (AS2) det (AS)/D), calculating a threshold alpha, choosing a final subset S2that is an -amplifier of (FIG.2Step of Test S2until a final subset S2is found which is an -amplifier for a defined), and employing the communications channels in the final subset S2as sensor channels (FIG.2Step of Use the modems corresponding to the final subset S2as the sensor set for the remaining modems m-n in A) for quantifying crosstalk from U.
REFERENCES:
patent: 7042934 (2006-05-01), Zamir
patent: 2003/0074625 (2003-04-01), Adar et al.
patent: 2003/0137925 (2003-07-01), Zamir
“Self basis selection in a finite set” , Ilani, I.; Zamir, R.; Electrical and Electronics Engineers in Israel, 2004. Proceedings. 2004 23rd IEEE Convention of Sep. 6-7, 2004 pp. 102-105.
Ilani Ishai
Zamir Ram
Actelis Networks (Israel) Ltd
Pearl Cohen Zedel Latzer LLP
Wang Ted
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