Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder
Reexamination Certificate
2008-05-13
2008-05-13
Jeanglaude, Jean B. (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Differential encoder and/or decoder
C455S234100
Reexamination Certificate
active
11403470
ABSTRACT:
A digital/analog converter comprises a converter array comprised of a plurality of converter cells and a device for self-calibration of the converter cells. The device for self-calibration comprises at least one reference cell with a reference value and a control device for controlling a calibration process. The control device calibrates successively, within a respective calibration period, respective of the converter cells to values corresponding to the reference value and adjusts respective calibration periods for a calibration cycle, within which the converter cells are to be calibrated. At least two different of the respective calibration periods differ within at least two calibration cycles.
REFERENCES:
patent: 2001/0026233 (2001-10-01), Hellberg et al.
patent: 2002/0171569 (2002-11-01), Zhang et al.
patent: 2006/0164298 (2006-07-01), Azuma
patent: 19916879 (1999-10-01), None
Clara Martin
Di Giandomenico Antonio
Gori Luca
Klatzer Wolfgang
Jeanglaude Jean B.
Jenkins Wilson Taylor & Hunt, P.A.
Lauture Joseph
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