Signal processing method

Details Signal processing method Signal processing method

1995-12-26

1997-12-30

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 90, 327 91, 327 70, 327551, 327 50, 327 77, 327514, H04Q 900, G08G 101

Patent

active

057035067

ABSTRACT:
A signal processing circuit (10) performs a sample and hold (16) of an input signal (14) and stores a maximum value of the input signal (18). A guardband signal (21) is developed that is less than the maximum value that is stored. The input signal is compared to the guardband signal to determine if the input signal is above or below the guardband signal. A threshold signal (25) is developed by taking a percentage of the maximum value that is stored. The input signal is compared to the threshold signal to regenerate the input waveform. If the input signal is below the guardband signal and above the threshold signal, the sample and hold circuit is reset to acquire a new maximum value of the input signal so that a new threshold can be used for regenerating the input signal.

REFERENCES:
patent: 3875381 (1975-04-01), Wingfield et al.
patent: 4276539 (1981-06-01), Eshraghian et al.
patent: 5434564 (1995-07-01), Nakanuma
Makoto Nakamura et al., "An Instantaneous Response CMOS Optical Receiver IC with Wide Dynamic Range and Extremely High Sensitivity Using Feed-Forward Auto-Bias Adjustment", IEEE Journal of Solid-State Circuits, vol. 30, No. 9, Sep. 1995, pp. 991-997.

Affiliated with

Also associated with

Rating

Signal processing method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Signal processing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal processing method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-206131