Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Slope control of leading or trailing edge of rectangular or...
Reexamination Certificate
2005-03-08
2005-03-08
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Slope control of leading or trailing edge of rectangular or...
C327S134000
Reexamination Certificate
active
06864731
ABSTRACT:
A device and method for calibrating a slew rate is disclosed. The slew rate may be for a driver of a bi-directional buffer. A driver outputs a signal having a frequency. A receiver is coupled to the driver. A frequency counter measures the frequency of the signal. A calibrated slew rate is determined by the frequency of a waveform of the signal. Different waveforms may be determined for the pull-up and pull-down calibrations.
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Chandler James E.
Zumkehr John F.
Callahan Timothy P.
Kenyon & Kenyon
Nguyen Hai L.
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