Coded data generation or conversion – Converter calibration or testing
Reexamination Certificate
2007-10-16
2007-10-16
JeanPierre, Peguy (Department: 2819)
Coded data generation or conversion
Converter calibration or testing
C341S155000
Reexamination Certificate
active
11232580
ABSTRACT:
A self-calibrating analog-to-digital converter (ADC). The ADC includes multiple component ADCs to generate respective digital representations of an input signal in response to respective timing signals that are offset in phase from one another, each component ADC having a gain setting that controls a magnitude of the digital representations. The ADC further includes correction circuitry to generate a plurality of fast-Fourier transforms (FFTs) that correspond to the digital representations of the input signal and to adjust the gain settings of the component ADCs and/or phase angles of the timing signals based on gain and phase errors indicated by the FFTs.
REFERENCES:
patent: 4612533 (1986-09-01), Evans
patent: 4763105 (1988-08-01), Jenq
patent: 6384756 (2002-05-01), Tajiri et al.
patent: 6414612 (2002-07-01), Quesenberry
patent: 6522282 (2003-02-01), Elbornsson
patent: 6801145 (2004-10-01), Asami
patent: 7049984 (2006-05-01), Wood et al.
patent: 7084793 (2006-08-01), Elbornsson
patent: 2002/0007386 (2002-01-01), Martin et al.
patent: 2002/0106009 (2002-08-01), Harrison et al.
patent: 2002/0186799 (2002-12-01), Sayeed
patent: 2003/0076899 (2003-04-01), Kumar et al.
patent: 2003/0118127 (2003-06-01), Peting
patent: 2004/0082300 (2004-04-01), Scheck
patent: 2005/0071403 (2005-03-01), Taunton
patent: WO02/07399 (2002-01-01), None
International Search report and Written Opinion of the International Searching Authority in International Application PCT/US2005/034022, World Intellectual Property Organization, Feb. 13, 2006, 16 pgs.
Younis, A., et al., “A/calibration algorithm for a 16-bit multi-path pipelin ADC”, Circuits and Systems, 2000. Proceedings of the 43rdIEEE Midwest Symposium on Aug. 8-11, 2000, Piscataway, NJ, USA, IEE, vol. 1, Aug. 8, 2000, pp. 158-161.
International Search Report and Written Opinion of the International Searching Authority in International Application PCT/US2005/034022, European Patent Office, Apr. 5, 2007, 8 pages.
Sheng Samuel
Yun Weijie
Jean-Pierre Peguy
Shemwell Mahamedi LLP
Telegent Systems, Inc.
LandOfFree
Pilot-tone calibration for time-interleaved... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pilot-tone calibration for time-interleaved..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pilot-tone calibration for time-interleaved... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3875710