Circuit for tracking rapid changes in mid-point voltage of a dat

Details Circuit for tracking rapid changes in mid-point voltage of a dat Circuit for tracking rapid changes in mid-point voltage of a dat

1998-05-12

2000-04-18

Zweizig, Jeffrey

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 14, 327 98, 327558, G01R 1900

Patent

active

060519975

ABSTRACT:
A circuit (11) for tracking rapid changes in peak and trough voltages of a data signal includes a peak detector circuit (13) and a trough detector circuit (14) coupled to the input for detecting peaks and troughs in the data signal and providing a peak and trough detect output signals, respectively. A peak level rate of change detector (17) is coupled to the peak detector circuit (13) for detecting a rate of increase in the voltage level of detected peaks and to the trough detector circuit (14) for controlling the trough detector circuit to detect troughs when the voltage level of detected peaks rises rapidly. Similarly, a trough level rate of change detector (18) is coupled to the trough detector circuit (14) for detecting a rate of decrease in the voltage level of detected troughs and to the peak detector circuit (13) for controlling the peak detector circuit (13) to detect peaks when the voltage level of detected troughs falls rapidly.

REFERENCES:
patent: 4914398 (1990-04-01), Jove et al.
patent: 5025251 (1991-06-01), Mittel et al.
patent: 5057785 (1991-10-01), Chung et al.
patent: 5923219 (1999-07-01), Ide et al.

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