I/O interface anti-resonance passband shunting technique

Details I/O interface anti-resonance passband shunting technique I/O interface anti-resonance passband shunting technique

2005-06-21

2005-06-21

DeBeradinis, Robert (Department: 2836)

Electrical transmission or interconnection systems

Shunting or short circuiting systems

C307S102000, C307S327000, C307S030000, C307S105000

Reexamination Certificate

active

06909203

ABSTRACT:
A method and apparatus for regulating resonance in a computer system I/O interface is provided. A shunting impedance/resistance is arranged across a power supply of the I/O interface. The shunting impedance/resistance is controlled by circuitry that is arranged to detect voltage overshoot conditions in the I/O interface. The circuitry has (1) an analog front end that is arranged to detect power supply oscillations relative to a grounded terminal, (2) an amplifier (or logic conversion circuit) that is arranged to convert an output signal from the analog front end to a digital signal, and (3) a shunting apparatus arranged to modify power supply behavior in the I/O interface dependent on the digital signal.

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