Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2011-05-24
2011-05-24
Mai, Lam T (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C455S141000, C375S346000, C702S075000
Reexamination Certificate
active
07948420
ABSTRACT:
A digital relay and concomitant method comprising employing an analog-to-digital converter, and via control logic providing oversampled output of the converter to determine likely digital values corresponding to the output, and wherein the control logic substantially eliminates aliasing resulting from waveform transients in input to the converter, and wherein no anti-aliasing filter is employed providing the input. Also, a digital relay and concomitant method comprising employing an analog-to-digital converter, and via control logic providing oversampled output of the converter to determine via Fourier transform likely digital values corresponding to the output, and wherein the control logic substantially eliminates aliasing resulting from waveform transients in input to the converter.
REFERENCES:
patent: 4234956 (1980-11-01), Adderley et al.
patent: 4300182 (1981-11-01), Schweitzer, III
patent: 4455612 (1984-06-01), Girgis et al.
patent: 4862168 (1989-08-01), Beard
patent: 4933675 (1990-06-01), Beard
patent: 5224011 (1993-06-01), Yalla et al.
patent: 5633633 (1997-05-01), Nakano
patent: 5671112 (1997-09-01), Hy et al.
patent: 5721689 (1998-02-01), Hart et al.
patent: 5742156 (1998-04-01), Sezi
patent: 5805395 (1998-09-01), Hu et al.
patent: 5822165 (1998-10-01), Moran
patent: 5832413 (1998-11-01), Benco et al.
patent: 5832414 (1998-11-01), Hart et al.
patent: 6618711 (2003-09-01), Ananth
patent: 6801145 (2004-10-01), Asami
patent: 6809668 (2004-10-01), Asami
patent: 6856925 (2005-02-01), Muhammad et al.
patent: 7057537 (2006-06-01), Lee et al.
patent: 7103489 (2006-09-01), Muhammad et al.
patent: 7212139 (2007-05-01), Katz
patent: 7373119 (2008-05-01), Petersson et al.
patent: 7375664 (2008-05-01), Bilhan
patent: 7466777 (2008-12-01), Muhammad et al.
patent: 7647192 (2010-01-01), Muhammad et al.
patent: 7692570 (2010-04-01), Martellock et al.
patent: 2003/0083852 (2003-05-01), Muhammad et al.
patent: 2003/0171100 (2003-09-01), Petersson et al.
patent: 2004/0027750 (2004-02-01), Minami et al.
patent: WO 97/16738 (1997-05-01), None
Orphandis, Sophocles J. ,Introduction to Signal ProcessingPrentice-Hall, Inc., Englewood Cliffs, N.J. 1996 , 63-67.
McLaren, P. G. et al., “Software Models for Relays”,IEEE Transactions on Power Deliveryvol. 16, No. 2 Apr. 2001 , 238-245.
Brahma Sukumar
De Leon Phillip
Kavasseri Rajesh
Arrowhead Center, Inc.
Mai Lam T
Myers Jeffrey D.
Peacock & Myers, P.C.
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