Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2005-04-12
2005-04-12
Lam, Tuan T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C327S153000, C327S158000
Reexamination Certificate
active
06879196
ABSTRACT:
Various systems and methods providing signal delay compensation for circuits such as a multi-pair gigabit Ethernet transceiver are disclosed. In an analog implementation a buffer with an adjustable delay may be used to minimize the delay mismatch between clock trees. The delay of the adjustable-delay buffer is controlled by bias voltages that determine the charging and discharging current to the adjustable buffer. A phase detector circuit is used to compare the clock phases for rising and falling edges, and to adjust the bias voltages that control these edges. In a digital implementation a selector switch, responsive to a phase detector, may be used to route clock signals through circuit elements to delay clock signals.
REFERENCES:
patent: 4496861 (1985-01-01), Bazes
patent: 4922141 (1990-05-01), Lofgren et al.
patent: 5118975 (1992-06-01), Hillis et al.
patent: 5900752 (1999-05-01), Mar
patent: 6072347 (2000-06-01), Sim
patent: 6184733 (2001-02-01), Wang et al.
Broadcom Corporation
Lam Tuan T.
McAndrews Held & Malloy Ltd.
LandOfFree
System and method for compensating for supply voltage... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for compensating for supply voltage..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for compensating for supply voltage... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3418422