A/D converter, signal processor, and receiving device

Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder

Reexamination Certificate

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Details

C341S118000, C341S120000, C341S155000

Reexamination Certificate

active

11613607

ABSTRACT:
An A/D converter which converts an analog current signal into a digital signal, includes: a filter removing a noise component from the analog current signal to output an analog voltage signal; a quantizer quantizing the analog voltage signal outputted from the filter to generate the digital signal; and a D/A converter converting the digital signal generated by the quantizer into an analog feedback current to feedback to an input of the filter, and supplying a bias current for the D/A converter to an output of a frequency converter via a path of the analog current signal as a bias current driving the frequency converter outputting the analog current signal.

REFERENCES:
patent: 5841388 (1998-11-01), Yasuda et al.
patent: 6320529 (2001-11-01), Yasuda
patent: 6614373 (2003-09-01), Frazier
patent: 6614855 (2003-09-01), Okamoto
patent: 6635859 (2003-10-01), Wiles, Jr.
patent: 6670901 (2003-12-01), Brueske et al.
patent: 6864817 (2005-03-01), Salvi et al.
patent: 6885852 (2005-04-01), Hughes et al.
patent: 7242334 (2007-07-01), Holden
patent: 7262724 (2007-08-01), Hughes et al.
patent: 7268715 (2007-09-01), Guimaraes
patent: 7295813 (2007-11-01), Haub et al.
patent: 2002/0094792 (2002-07-01), Oono et al.
Breems et al., A 1.8-mW CMOS Modulator with Integrated Mixer for A/D Conversion of IF Signals, IEEE Journal of Solid-State Cuircuits, vol. 35, No. 4, Apr. 2000, pp. 468-475.
Yasuda et al., A Third-Order Modulator Using Second-Order Noise-Shaping Dynamic Element Matching, IEEE Journal of Solid-State Circuits, vol. 33, No. 12, Dec. 1998, pp. 1879-1886.
Nys et al., A 19-Bit Low-Power Multibit Sigma-Delta ADC Based on Data Weighted Averaging, IEEE Journal of Solid State Circuits, vol. 32, No. 7, Jul. 1997, pp. 933-942.

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