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Class Information
Number: 327/60
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Specific signal discriminating (e.g., comparing, selecting, etc.) without subsequent control > By amplitude > Maximum or minimum amplitude > Employing input compared to reference derived therefrom
Description: Subject matter wherein a signal from an external source is evaluated relative to a voltage or current obtained by processing signals from the same source.

Patents under this class:
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Patent Number Title Of Patent Date Issued
5640109 Pulse detector Jun. 17, 1997
5629639 Correlation peak detector May. 13, 1997
5566034 Off-track detection with charge redistribution A/D circuits Oct. 15, 1996
5557233 Filter for computer bus signals Sep. 17, 1996
5548232 Method and apparatus for detecting/storing waveform peak value Aug. 20, 1996
5539779 Automatic offset control circuit for digital receiver Jul. 23, 1996
5497084 Geartooth sensor with means for selecting a threshold magnitude as a function of the average and minimum values of a signal of magnetic field strength Mar. 5, 1996
5428307 Closed-loop peak detector topology Jun. 27, 1995
5416432 Median peak detector for controlling disk pickup head May. 16, 1995
5384560 Maximum likelihood sequence metric calculator Jan. 24, 1995
5381052 Peak detector circuit and application in a fiber optic receiver Jan. 10, 1995
5304939 Tracking peak detector Apr. 19, 1994
5302863 CMOS peak amplitude detector Apr. 12, 1994
5140185 Integratable bipolar level detector for high-frequency sinusoidal signals Aug. 18, 1992
5003196 Wave shaping circuit having a maximum voltage detector and a minimum voltage detector Mar. 26, 1991
4866301 Controlled slew peak detector Sep. 12, 1989
4771188 Adaptive threshold adjustment method and apparatus Sep. 13, 1988
4560940 Peak amplitude measurement Dec. 24, 1985
4199729 Variable peak detector Apr. 22, 1980
4081756 Dual channel signal detector circuit Mar. 28, 1978
4038568 Pulse peak sample and hold circuit Jul. 26, 1977

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