Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2008-04-01
2008-04-01
JeanPierre, Peguy (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S159000
Reexamination Certificate
active
07352316
ABSTRACT:
In a time-interleaved AD converter which combines together low-speed high-resolution AD converters for effective high speed operation, various deterioration factors possessed by each of the converters, including DC offset, conversion gain error, sampling timing error, and a frequency characteristic, need to be compensated. The compensation is performed through nonlinear filter operation in which a constant term is added to linear filter operation. A high-speed low-resolution AD converter is separately used, and through adaptive signal processing in which an output signal thereof is defined as an instruction signal, a compensation coefficient is calculated. In this condition, the compensation can be performed without the influence of quantization noise attributable to the high-speed low-resolution AD converter.
REFERENCES:
patent: 6999733 (2006-02-01), Hori et al.
patent: 7250885 (2007-07-01), Nairn
patent: 7280091 (2007-10-01), Wang et al.
patent: 2003/0108120 (2003-06-01), Hori et al.
patent: 2004-165988 (2002-11-01), None
patent: 2004-328436 (2003-04-01), None
Yuki Iikuni, “Adaptable Signal Algorithms”, Baifukan Co., Ltd.., pp. 10-19 in English, pp. 110-115 in Japanese, no date.
S. Heikin, “Introduction to Adaptable Filters”, Modern Engineering Corp., pp. 1-9 in English, pp. 10-11 and 140-145 in Japanese, no date.
Hirota Keiichi
Hori Kazuyuki
Ishida Yuji
Kurokawa Toshiaki
Murakami Shouhei
A. Marquez, Esq. Juan Carlos
Fisher Esq. Stanley P.
Hitachi Communication Technologies Ltd.
Jean-Pierre Peguy
Reed Smith LLP
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