Signal detector for high-speed serdes

Details Signal detector for high-speed serdes Signal detector for high-speed serdes

2006-09-05

2006-09-05

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By presence or absence pulse detection

C327S065000

Reexamination Certificate

active

07102392

ABSTRACT:
An improved signal detector system implementable in a high-speed SerDes receiver core that is able to detect valid signals from noise signals with a much tighter tolerance. The signal detector system improves upon the prior art designs by implementing modifications including: (1) the use of two peaking amplifiers for both (differential) input signals and reference to track and cancel gain variation; and, (2) the reduction of current mirroring stages to cut down current mapping error.

REFERENCES:
patent: 4868470 (1989-09-01), Bucska et al.
patent: 6246268 (2001-06-01), Cheng
patent: 6377082 (2002-04-01), Loinaz et al.
patent: 6831521 (2004-12-01), Abidin et al.
patent: 2003/0164724 (2003-09-01), Momtaz et al.
Pending IBM application entitled “Reducing Power Consumption in Signal Detection”, U.S. Appl. No. : 10/873,672, Filing date: Jun. 22, 2004.

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