Averaging in an intelligent electronic device

Details Averaging in an intelligent electronic device Averaging in an intelligent electronic device

2011-04-05

2011-04-05

Tsai, Carol S (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C702S058000, C702S072000, C700S292000, C700S293000, C324S076390, C361S094000, C361S097000, C361S196000

Reexamination Certificate

active

07920976

ABSTRACT:
A method and apparatus measures electrical power usage and quality, while mitigating the effects of noise on measured signals or parameters. Specifically, a digital electrical power and energy meter employs a method in which a processor averages a parameter, such as voltage or current, over a plurality of cycles of a time-varying signal, such as an AC electrical signal. The method employed by the meter samples a parameter over the plurality of cycles and computes the average of the samples corresponding to the same phase angle of the signal to produce an average signal.

REFERENCES:
patent: 4246623 (1981-01-01), Sun
patent: 4466071 (1984-08-01), Russell, Jr.
patent: 5014229 (1991-05-01), Mofachern
patent: 5212441 (1993-05-01), McEachern et al.
patent: 5224054 (1993-06-01), Wallis
patent: 5233538 (1993-08-01), Wallis
patent: 5237511 (1993-08-01), Caird et al.
patent: 5298854 (1994-03-01), McEachern et al.
patent: 5298855 (1994-03-01), McEachern et al.
patent: 5298856 (1994-03-01), McEachern et al.
patent: 5298859 (1994-03-01), McEachern et al.
patent: 5298885 (1994-03-01), McEachern et al.
patent: 5298888 (1994-03-01), McEachern et al.
patent: 5300924 (1994-04-01), McEachern et al.
patent: 5302890 (1994-04-01), McEachern et al.
patent: 5307009 (1994-04-01), McEachern et al.
patent: 5315527 (1994-05-01), Beckwith
patent: 5347464 (1994-09-01), McEachern et al.
patent: 5544064 (1996-08-01), Beckwith
patent: 5559719 (1996-09-01), Johnson et al.
patent: 5581173 (1996-12-01), Yalla et al.
patent: 5774366 (1998-06-01), Beckwith
patent: 5822165 (1998-10-01), Moran
patent: 6519537 (2003-02-01), Yang
patent: 6717394 (2004-04-01), Elms
patent: 7436687 (2008-10-01), Patel
patent: 7511468 (2009-03-01), McEachern et al.
patent: 7514907 (2009-04-01), Rajda et al.
patent: 2003/0178982 (2003-09-01), Elms
patent: 2006/0267560 (2006-11-01), Rajda et al.
patent: 2008/0172192 (2008-07-01), Banhegyesi
patent: 2008/0234957 (2008-09-01), Banhegyesi et al.
patent: 2008/0238406 (2008-10-01), Banhegyesi
patent: 2008/0238713 (2008-10-01), Banhegyesi et al.

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