Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2005-10-25
2005-10-25
Jeanpierre, Peguy (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S143000
Reexamination Certificate
active
06958723
ABSTRACT:
An analog-to-digital converter apparatus has a plurality of stages. Each stage includes a residue amplifier having a first and second amplifier unit. Each of the amplifier units has a first input locus, a second input locus and an output locus. The amplifier units cooperate in receiving a differential input data signal at the first input loci. A DC level setting signal unit is coupled with the second input loci and provides a DC level setting current in a first current direction. A counter-current signal generating unit is coupled with the second input loci via a single coupling locus common with the second input loci and provides a control current signal to the second input loci in a second current direction opposite to the first current direction. The control current signal provides a DC level control for each of the amplifier units.
REFERENCES:
patent: 6456573 (2002-09-01), Ueki et al.
Analog Devices Product Specification Document: 14-Bit, 80/105 MSPS A/D Converter AD6645; REV. B, Copyright 2003, Analog Devices, Inc.
Bright William J.
Corsi Marco
Kinyua Martin Kithinji
Smith William David
Brady W. James
Jeanpierre Peguy
Lauture Joseph
Swayze, Jr. W. Daniel
Telecky , Jr. Frederick J.
LandOfFree
Method and apparatus for reducing noise in analog-to-digital... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for reducing noise in analog-to-digital..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reducing noise in analog-to-digital... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3477504