History-based slew rate control to reduce intersymbol...

Details History-based slew rate control to reduce intersymbol... History-based slew rate control to reduce intersymbol...

2006-10-24

2006-10-24

Ton, My-Trang Nu (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Slope control of leading or trailing edge of rectangular or...

Reexamination Certificate

active

07126394

ABSTRACT:
In one aspect of the invention, a method of reducing intersymbol interference on a signal line is disclosed. A state machine records previous bits that were transmitted over the line. If the bit on the line has been static for several clock cycles, the slew rate will be increased to facilitate correct reading of the bit for the next clock cycle. If the bit on the line has been dynamic for the previous bits, the slew rate will be a lower slew rate to avoid crosstalk between neighboring lines.

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Dally et al., “Transmitter Equalization for 4Gb/s Signalling,”IEEE Micro, vol. 17, No. 1, Jan./Feb. 1997, 10 pages.

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