Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder
Reexamination Certificate
2007-02-27
2009-08-18
JeanPierre, Peguy (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Differential encoder and/or decoder
C341S155000
Reexamination Certificate
active
07576671
ABSTRACT:
A sigma delta modulator (SDM) data converter system is provided. The SDM data converter system comprises a signal path, a feedback signal path, and a multi-bit quantizer disposed in a feedforward path. The signal path receives an input signal to be processed. The feedback signal path provides a feedback signal that is subtracted from the input signal. The multi-bit quantizer is disposed in the feedforward path so as to receive the input signal after the feedback signal has been subtracted from it. Te multi-bit quantizer uses feedforward dynamic element matching (DEM) to spectrally shape mismatch errors in the SDM data conversion system and produce an output signal, wherein the output signal of the multi-bit quantizer is used for at least a portion of the feedback signal.
REFERENCES:
patent: 4974236 (1990-11-01), Gurcan et al.
patent: 5357252 (1994-10-01), Ledzius et al.
patent: 5392042 (1995-02-01), Pellon
patent: 5467294 (1995-11-01), Hu et al.
patent: 5563535 (1996-10-01), Corry et al.
patent: 5608400 (1997-03-01), Pellon
patent: 5701106 (1997-12-01), Pikkarainen et al.
patent: 5712628 (1998-01-01), Phillips et al.
patent: 5715281 (1998-02-01), Bly et al.
patent: 5732330 (1998-03-01), Anderson et al.
patent: 5760722 (1998-06-01), Harris et al.
patent: 5810930 (1998-09-01), Eom et al.
patent: 5841388 (1998-11-01), Yasuda et al.
patent: 5950124 (1999-09-01), Trompower et al.
patent: 5981428 (1999-11-01), Mitsuhashi et al.
patent: 5982313 (1999-11-01), Brooks et al.
patent: 6005506 (1999-12-01), Bazarjani et al.
patent: 6148048 (2000-11-01), Kerth et al.
patent: 6151071 (2000-11-01), Petilli
patent: 6160859 (2000-12-01), Martin et al.
patent: 6225928 (2001-05-01), Green
patent: 6304608 (2001-10-01), Chen et al.
patent: 6310908 (2001-10-01), Reed et al.
patent: 6329939 (2001-12-01), Swaminathan et al.
patent: 6330290 (2001-12-01), Glas
patent: 6346898 (2002-02-01), Melanson
patent: 6381265 (2002-04-01), Hessel et al.
patent: 6396428 (2002-05-01), Cheng
patent: 6397051 (2002-05-01), Abbasi et al.
patent: 6405022 (2002-06-01), Roberts et al.
patent: 6426714 (2002-07-01), Ruha et al.
patent: 6437718 (2002-08-01), Oyama et al.
patent: 6459743 (2002-10-01), Lipka
patent: 6476746 (2002-11-01), Viswanathan
patent: 6539052 (2003-03-01), Hessel et al.
patent: 6606007 (2003-08-01), Washburn
patent: 6631255 (2003-10-01), Claxton et al.
patent: 6639481 (2003-10-01), Ravi et al.
patent: 6677875 (2004-01-01), Dagher et al.
patent: 6697003 (2004-02-01), Chen
patent: 6704558 (2004-03-01), Sorrells et al.
patent: 6738608 (2004-05-01), Black et al.
patent: 6741197 (2004-05-01), Melanson
patent: 6744392 (2004-06-01), Melanson
patent: 6765517 (2004-07-01), Ali
patent: 7183955 (2007-02-01), Shih
patent: 2003/0043933 (2003-03-01), Kintis
patent: 2003/0078020 (2003-04-01), Kintis
patent: 2003/0081803 (2003-05-01), Petilli et al.
patent: 2003/0095615 (2003-05-01), Kintis et al.
patent: 2003/0152160 (2003-08-01), Bauch et al.
patent: 2003/0185288 (2003-10-01), Hinrichs et al.
patent: 0999645 (2000-05-01), None
Notification of Transmittal of The International Search Report and the Written Opinion of the International Searching Authority, or the Declaration, dated Jul. 13, 2007, (Form PCT/ISA/220).
International Search Report (Form PCT/ISA/210).
Written Opinion of the International Searching Authority (Form PCT/ISA/237).
Dörrer, et al, “A 3-mW 74-dB SNR 2-MHz Continuous-Time Delta-Sigma ADC With a Tracking ADC Quantizer in 0.13-μm CMOS”, IEEE Journal of Solid-State Circuits, vol. 40, No. 12, Dec. 2005, pp. 2416-2427, XP002440494.
International Preliminary Report on Patentability (Form PCT/IB/373) and Written Opinion (Form PCT/ISA/237) for PCT/US2007/005108, dated Oct. 21, 2008, 6 pages.
Notification of Transmittal of The International Search Report and the Written Opinion of the International Searching Authority, or the Declaration, dated Jul. 13, 2007, (Form PCT/ISA/220), Oct. 2005.
International Search Report (Form PCT/ISA/210), Apr. 2005.
Written Opinion of the International Searching Authority (Form PCT/ISA/237), Apr. 2005.
International Search Report and Written Opinion for PCT/US2005/029560, dated Jan. 26, 2006, 13 pages.
Hussein et al. “Bandpass ΣΔ Modular Emplying Undersampling of RF Signals for Wireless Communication;” IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, vol. 47, Jul. 7, 2000, pp. 614-620.
Jantzi et al, “Quadrature Bandpass ΣΔ Modulation for Digital Radio;” IEEE Journal of Solid State Circuits, vol. 32, Dec. 12, 1997, pp. 1935-1950.
H. Tao et al., “A 400 Ms/s Frequency Translating Bandpass Sigma Delta Modulator”; IEEE Journal Of Solid State Circuits, vol. 34, Dec. 12, 1999, pp. 1741-1752.
Wu et al., “Weaver Architecture with Bandpass Delta-Sigma A/d Converters”, IEEE, Aug. 1998.
Paulus et al., “TP 3.2:A CMOS IF Transceiver for Narrowband PCS”, Feb. 5,1998 IEEE International Solid State Circuits Conference, Digest of Technical Papers, p. 46-47.
PAIR file for U.S. Appl. No. 11/208,430, filed Aug. 19, 2005, file through Jan. 29, 2009, 225 pages.
Jantzi et al. “A Quadrature Bandpass ΣΔModulator for Digital Radio”, IEEE International Solid-State Circuits Conference, Feb. 1997, 3 pages.
PAIR file for U.S. Appl. No. 11/208,430, filed Aug. 19, 2005, file through Jun. 2, 2009, 588 pages.
Jadus Brian
Kozak Mucahit
Petilli Eugene M.
Daly, Crowley & Mofford & Durkee, LLP
Intrinsix Corporation
Jean-Pierre Peguy
LandOfFree
Mismatch-shaping dynamic element matching systems and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mismatch-shaping dynamic element matching systems and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mismatch-shaping dynamic element matching systems and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4137283