Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2011-01-25
2011-01-25
Nguyen, Khai M (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S135000, C341S155000, C341S159000
Reexamination Certificate
active
07876253
ABSTRACT:
A D/A conversion circuit for performing D/A conversion at high speeds. The D/A conversion circuit includes a resistor string including a plurality of resistor elements connected between a low-potential power supply and a high-potential power supply. A plurality of first switch groups are connected to the connection nodes between the resistor elements for selectively outputting voltages at the connection nodes. The outputs of the switches of the first switch groups are connected in common to a corresponding one of the nodes. The plurality of nodes are connected to an output terminal of the D/A conversion circuit via a second switch group. Predetermined switches of the first switch groups are connected in parallel to third switches to apply voltages to the nodes.
REFERENCES:
patent: 4462021 (1984-07-01), Watanabe et al.
patent: 4745393 (1988-05-01), Tsukada et al.
patent: 5065159 (1991-11-01), Kuwana
patent: 5302869 (1994-04-01), Hosotani et al.
patent: 5327135 (1994-07-01), Hosotani et al.
patent: 5579006 (1996-11-01), Hasegawa et al.
patent: 5708434 (1998-01-01), Hasegawa
patent: 5798725 (1998-08-01), Okada
patent: 6075477 (2000-06-01), Kokubun et al.
patent: 6150967 (2000-11-01), Nakamura
patent: 6166672 (2000-12-01), Park
patent: 6313780 (2001-11-01), Hughes et al.
patent: 6356223 (2002-03-01), Tanaka
patent: 6392582 (2002-05-01), Nakamura
patent: 6680685 (2004-01-01), Nozaki
patent: 7098837 (2006-08-01), Suzuki et al.
patent: 55-60333 (1980-05-01), None
patent: 64-78526 (1989-03-01), None
patent: 03-206729 (1991-09-01), None
patent: 6-81048 (1994-10-01), None
patent: 7-86941 (1995-03-01), None
patent: 7-202698 (1995-08-01), None
patent: 8-79080 (1996-03-01), None
patent: 9-83369 (1997-03-01), None
patent: 11-214998 (1999-08-01), None
patent: 2001-51661 (2001-02-01), None
patent: WO-00/19614 (2000-04-01), None
André Abrial et al.; “A Low-Power 8-b 13.5-MHz Video CMOS ADC for Visiophony ISDN Applications”, 8107, IEEE Journal of Solid-State Circuits; vol. 28, No. 7, Jul. 1993; pp. 725-729.
Masumi Kasahara et al., “A CMOS 9 bit 25MHz 100mW ADC for Mixed Analog/Digital LSIs”, Proceedings of the Custom Integrated Circuits Conference. San Diego, May 12, 15, 1991; [Proceedings of the Custom Integrated Circuits Conference], New York, IEEE, US, vol. CONF. 13, May 12, 1991, pp. 26.7/1-26.7/4.
Michio Yotsuyanagi et al., “Special Issue Brief Papers”, IEEE Journal of Solid-State Circuits, IEEE Service Center, Dec. 31, 1995, pp. 1533-1537, vol. 30, No. 12, Piscataway, NJ, US.
Andrew Cable et al., “A 6-Bit 50MhZCurrent-Subtracting Two Step Flash Converter”, International Symposium on Circuits and Systems. (ISCAS). Digital Signal Processing (DSP). London, May 30-Jun. 2, 1994; International Symposium on Circuits and Systems. (ISCAS), May 30, 1994, pp. 465-468, vol. 5, New York, US.
Soung Hoon Shim et al., “A 10-Bit Current-Mode Low-Power CMOS A/D Converter with a Current Predictor and A Modular Current Reference”, Circuits and Systems, 1997, Proceedings of the 40thMidwest Symposium on Sacramento, CA, USA Aug. 3-6, 1997, pp. 342-345, vol. 1, New York, NY.
Ito Kenji
Kijima Masashi
Shimizu Yoshiaki
Suzuki Hisao
Arent & Fox LLP
Fujitsu Semiconductor Limited
Nguyen Khai M
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