Coded data generation or conversion – Analog to or from digital conversion – Multiplex
Reexamination Certificate
2007-07-31
2007-07-31
Mai, Lam T. (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Multiplex
C341S155000
Reexamination Certificate
active
11396821
ABSTRACT:
A multi-channel analog-to-digital converter system includes an array of sub-analog-to-digital converters wherein within the array of sub-analog-to-digital converters, there is at least one designated reference analog-to-digital converter. The analog-to-digital converter system also includes a non-sequential channel select circuit to control a selection of the analog-to-digital converters and the reference analog-to-digital converter to non-sequentially interleave the outputs of said analog-to-digital converters and said reference analog-to-digital converter. Each channel of the plurality of sub-analog-to-digital converters includes a timing skew estimation circuit. Each timing skew estimation circuit receives an output signal from the reference analog-to-digital converter and receives the output signal from the associated analog-to-digital converter. Each timing skew estimation circuit generates a timing signal to be used in shifting or adjusting the actual or apparent sample times for the appropriate analog-to-digital converter.
REFERENCES:
patent: 4763105 (1988-08-01), Jenq
patent: 4968988 (1990-11-01), Miki et al.
patent: 5294926 (1994-03-01), Corcoran
patent: 5764775 (1998-06-01), Kim
patent: 6392575 (2002-05-01), Eklund
patent: 6771203 (2004-08-01), Nairn
patent: 7053804 (2006-05-01), Nairn
patent: 7126511 (2006-10-01), Draxelmayr et al.
patent: 7138933 (2006-11-01), Nairn
patent: 2005/0190089 (2005-09-01), Draxelmayr et al.
patent: 2006/0097901 (2006-05-01), Draxelmayr et al.
patent: 2006/0238397 (2006-10-01), Nairn
Jin H Lee; time interleaved (a/d) with channel randommization; IEEE 1997 vol. 1, pp. 425-428.
Tamba Shimizu; A method to Improve SFDR with Random Interleaved Sampling; Oct. 2001, pp. 512-520.
El-Sankary Assi; “New sampling method to improve SFDR of time interleaved ADCs” 2003 International Symposium vol. 1 pp. 833-836.
Hummels D.M Mcdonald; “Distortion compensation of time interleaved adc” IEEE 1996 vol. 1 pp. 728-731.
Analog Devices Inc.
Gauthier & Connors LLP
Mai Lam T.
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