Electronic digital logic circuitry – Signal sensitivity or transmission integrity – Output switching noise reduction
Reexamination Certificate
2006-07-20
2009-02-24
Barnie, Rexford (Department: 2819)
Electronic digital logic circuitry
Signal sensitivity or transmission integrity
Output switching noise reduction
C326S008000, C326S021000, C714S699000, C714S700000, C714S701000, C714S724000, C714S746000
Reexamination Certificate
active
07495465
ABSTRACT:
A compensation circuit and a method that compensates for process, voltage and temperature (PVT) variations in an integrated circuit that includes functional modules. The compensation circuit includes a signal generator, a first code generator, a second code generator, and a mapping module. The signal generator generates a first signal and a second signal depending on aligned process corner, voltage and temperature variations and skewed process corner variations respectively. The first code generator receives the first signal, and generates a first calibration code. The second code generator receives the second signal, and generates a second calibration code. The mapping module provides the first and second calibration codes for compensating for the aligned process corner, voltage and temperature variations and the skewed process corner variations associated with the functional modules respectively.
REFERENCES:
patent: 5498977 (1996-03-01), Pickup
patent: 5892409 (1999-04-01), Boerstler
patent: 6218886 (2001-04-01), Balistreri et al.
patent: 6417727 (2002-07-01), Davis
patent: 6486699 (2002-11-01), Friebe et al.
patent: 6504420 (2003-01-01), Vorenkamp et al.
patent: 6646483 (2003-11-01), Shin
patent: 6653890 (2003-11-01), Ono et al.
patent: 6822504 (2004-11-01), Morikawa
patent: 6844755 (2005-01-01), Ajit
patent: 2004/0012449 (2004-01-01), Illegems
patent: 2005/0134364 (2005-06-01), Bhattacharya et al.
Gk Siddhartha
Khan Qadeer A.
Misri Kulbhushan
Tripathi Divya
Wadhwa Sanjay K
Barnie Rexford
Bergere Charles
Freescale Semiconductor Inc.
Tabler Matthew C
LandOfFree
PVT variation detection and compensation circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with PVT variation detection and compensation circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and PVT variation detection and compensation circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4126176