Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder
Reexamination Certificate
2007-12-05
2009-06-09
Jeanglaude, Jean B (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Differential encoder and/or decoder
C341S155000
Reexamination Certificate
active
07545301
ABSTRACT:
A delta-sigma modulator having a first integrator for integrating an input signal; an analog-to-digital converter for converting the integrated signal into a digital signal; a delay circuit for delaying an output signal of the analog-to-digital converter; and a differential delay circuit for differentially delaying the output signal of the analog-to-digital converter. More particularly, the delta-sigma modulator has low distortion characteristics suitable for multi-bit fast operation, wherein a feedback signal is delayed by one clock period through the delay circuit and the differential delay circuit.
REFERENCES:
patent: 5068659 (1991-11-01), Sakaguchi
patent: 5682161 (1997-10-01), Ribner et al.
patent: 6271782 (2001-08-01), Steensgaard-Madsen
patent: 6462687 (2002-10-01), Eshraghi et al.
patent: 6693573 (2004-02-01), Linder
patent: 2004/0012514 (2004-01-01), Ollos et al.
patent: 09-289451 (1997-11-01), None
patent: 2000-224042 (2000-08-01), None
patent: 2001-156642 (2001-06-01), None
patent: 1020010003899 (2001-01-01), None
patent: 1020020027530 (2002-04-01), None
patent: 2004-0062823 (2004-07-01), None
patent: 1020040082767 (2004-09-01), None
patent: 1020060095086 (2006-08-01), None
patent: 01/11786 (2001-02-01), None
J. Silva, et al.; “Wideband low-distortion delta-sigma ADC topology”, Electronics Letters 7thJun. 2001, vol. 37, No. 12, pp. 737-738.
Jesper Steensgaard; “Nonlinearities in SC Delta-Sigma A/D Converters”, Electronics, Circuits and Systems, 1998 IEEE International Conference, vol. 1, pp. 355-358.
Kim Jong Dae
Kim Kwi Dong
Kim Yi Gyeong
Kwon Chong Ki
Electronics and Telecommunications Research Institute
Jeanglaude Jean B
Ladas & Parry LLP
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