Oscillators – With frequency calibration or testing
Reexamination Certificate
2011-05-10
2011-05-10
Pascal, Robert (Department: 2817)
Oscillators
With frequency calibration or testing
C332S117000, C323S205000
Reexamination Certificate
active
07940131
ABSTRACT:
An apparatus for rapidly tracking fundamental frequency information in the signal of an electric grid is a cross-coupled phase-lock loop filter (CCPLL) that includes the use of a phase-lock-loop (PLL) apparatus having a plurality individual filters, wherein an input for a first filter in the plurality of individual filters comprises the signal of the electric grid and an output signal from at least a second filter in the plurality of individual filters. A method for using the CCPLL includes applying a signal to the CCPLL and monitoring the output of the CCPLL. Use of the CCPLL may be accomplished or modeled via computer instructions stored on machine readable media.
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Chinese Office Action issued Jun. 28, 2010 with English Translation of the text.
D'Atre John D.
Dai Renchang
Delmerico Robert W.
Ritter Allen M.
Seymour Robert A.
Cantor & Colburn LLP
General Electric Company
Goodley James E
Pascal Robert
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