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US 2003/0147189 A1Published application
Signal shielding technique using active shields for non-interacting driver design
AssigneeSun Microsystems, Inc.
InventorsSudhakar Bobba, Tyler Thorp
Life of this patent
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Abstract
A technique for actively shielding a signal such that a signal driver of the signal only participates in discharge events is provided. Because the signal driver only participates in discharge events, the signal driver is non-interacting with respect to other driver devices. Shield wires are set such that an active transition on the signal causes a discharge of capacitance between the signal and the shield wires.
Claims15
An integrated circuit, comprising:
- a signal driver that generates a signal;
- a first wire disposed adjacent to the signal;
- and
- shield control circuitry that generates a value on the first wire such that a transition on the signal causes a discharge of capacitance between the signal and the first wire.
1 more element
An integrated circuit, comprising:
- driving means for generating a signal;
- and
- shielding control means for actively controlling a value on wires shielding that signal such that the driving means only participates in discharge events.
A method for non-interactively driving a signal, comprising:
- after a signal has transitioned to a first voltage potential, charging a capacitor by driving a wire to a second voltage potential, wherein the wire shield the signal;
- and
- discharging the capacitor when the signal transitions to the second voltage potential.
Dependencies are inferred from the claim text.