Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Reexamination Certificate
2004-11-18
2009-12-15
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
C375S260000, C455S214000, C455S336000
Reexamination Certificate
active
07633319
ABSTRACT:
A QP detection unit includes digital circuit elements. There is provided a digital QP detector which detects an electric power signal Vi, which is an input signal, and outputs a detection signal Vo. The digital QP detector includes a register which records input digital data, a first multiplier which multiplies the digital data recorded in the register by a first coefficient, a second multiplier which multiplies the digital data recorded in the register by a second coefficient, an adder which adds the electric power signal Vi and the output from the first multiplier to each other, a comparator which compares the level of the electric power signal Vi and the level of the detection signal Vo, and a first switch which switches the digital data to be fed to the register between the output from the adder (Vi>Vo) and the output from the second multiplier (Vi<Vo) based on a comparison result of the comparator. The output of the first switch is output as the detection signal Vo via a third multiplier and a latch.
REFERENCES:
patent: 5119081 (1992-06-01), Ikehira
patent: 7085334 (2006-08-01), Burke et al.
patent: 10103481 (2002-08-01), None
patent: 0379050 (1990-07-01), None
patent: 2-183170 (1990-07-01), None
patent: 5-136833 (1993-06-01), None
patent: 2002-350474 (2002-12-01), None
English Language Abstract of JP 2-183170.
Advantest Corporation
Donovan Lincoln
Greenblum & Bernstein P.L.C.
Poos John W
LandOfFree
Digital QP detecting apparatus, spectrum analyzer having the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital QP detecting apparatus, spectrum analyzer having the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital QP detecting apparatus, spectrum analyzer having the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4063179