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US 5,706,222 AGranted
Multiple mode peak detector
AssigneeInternational Business Machines Corporation
InventorsAnthony Richard Bonaccio, Mark Andrew Bergquist, Kirk William Lang, Anthony John Perr
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Abstract
A peak detector having several novel detection modes including detecting a pair of peaks with opposite polarity and selecting whether or not the peaks must cross programmed thresholds to be detected. The novel detection modes together with several known detection modes are provided in one unit and can be selected by the user. A power down feature is also provided.
Claims14
A computer system comprising:
- receiving means for receiving an input signal waveform;
- identification means coupled to the receiving means for identifying peak characteristics of the waveform;
- output means coupled to the identification means for outputting a plurality of logic signals corresponding to the peak characteristics;
- and
- logic means coupled to the output means and responsive to the logic signals for detecting a dibit in the waveform.
2 more elements
An information handling system comprising:
- receiving means for receiving an input signal waveform;
- and
- characterization means coupled to the receiving means and responsive to the waveform for outputting a plurality of logic signals, the logic signals including:
- a first signal indicating when the waveform's differential amplitude is greater than zero;
- a second signal indicating when the waveform's derivative amplitude is greater than zero;
- a third signal indicating when the waveform's differential signal voltage is greater than a predetermined positive threshold;
- and
- a fourth signal indicating when the waveform's differential signal voltage is less than a predetermined negative threshold.
5 more elements
A method of processing an input waveform comprising the steps of:
- (a) receiving the input waveform;
- (b) identifying when a differential amplitude of the input waveform is greater than zero volts including outputting an A.sub.-- POL signal;
- (c) identifying when a derivative amplitude of the input waveform is greater than zero volts including outputting a CPOL signal;
- (d) identifying when a differential signal voltage of the input waveform is greater than a preset positive threshold selected by a user including outputting a PCOMP signal;
- and
- (e) identifying when the differential signal voltage of the waveform is less than a preset negative threshold selected by a user including outputting a NCOMP signal.
3 more elements
Dependencies are inferred from the claim text.