Coded data generation or conversion – Converter compensation
Reexamination Certificate
2007-06-05
2007-06-05
Nguyen, Khai M. (Department: 2819)
Coded data generation or conversion
Converter compensation
C341S120000, C341S141000, C341S155000, C341S169000, C341S170000
Reexamination Certificate
active
11315640
ABSTRACT:
The present invention provides for background calibration of a time-interleaved analog-to-digital converter (TIADC). In one embodiment, a background calibrator includes a TIADC having a parallel array of time-interleaved main signal processors, each main signal processor including an ADC connected to a corresponding output FIR filter. The background calibrator also includes an auxiliary signal processor having an ADC connected to at least one corresponding output FIR filter. Additionally, the background calibrator further includes a timing calibration circuit, wherein the timing calibration circuit is configured to select one of the main signal processors, exchange the auxiliary signal processor with the selected main signal processor in the TIADC and connect the selected main signal processor to the timing calibration circuit. In an alternative embodiment, the timing calibration circuit is further configured to reduce a timing mismatch of the selected main signal processor.
REFERENCES:
patent: 4763105 (1988-08-01), Jenq
patent: 4958139 (1990-09-01), Hyatt
patent: 4968988 (1990-11-01), Miki et al.
patent: 5294926 (1994-03-01), Corcoran
patent: 6496125 (2002-12-01), Jonsson et al.
patent: 6545626 (2003-04-01), Nakada
patent: 6556156 (2003-04-01), Hungerbuehler
patent: 6771203 (2004-08-01), Nairn
patent: 6836235 (2004-12-01), Asami
patent: 6967603 (2005-11-01), Lin
patent: 7049984 (2006-05-01), Wood et al.
patent: 7049994 (2006-05-01), Tsujita
patent: 7126511 (2006-10-01), Draxelmayr et al.
patent: 7161514 (2007-01-01), Tamba
patent: 2006/0176197 (2006-08-01), McNeill et al.
Chen Hsin-Hung
Lee Jaesik
Lucent Technologies - Inc.
Nguyen Khai M.
LandOfFree
Digital background calibration for time-interlaced... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital background calibration for time-interlaced..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital background calibration for time-interlaced... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3845743