Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder
Reexamination Certificate
2011-03-01
2011-03-01
Nguyen, Linh V (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Differential encoder and/or decoder
C341S141000, C341S155000, C341S172000
Reexamination Certificate
active
07898448
ABSTRACT:
An angular velocity sensor has a stable output characteristic using a sigma-delta type analog-to-digital converter. The sigma-delta type analog-to-digital converter includes an integrator unit for integrating electric charges output from an input switching device and a digital-to-analog converter unit, and holding at least two integrated values, a comparator unit for comparing at least the two integrated values output from the integrator unit with a predetermined value. The sigma-delta-type analog-to-digital converter also includes an arithmetic operation unit for operating an output signal of the comparator unit, the arithmetic operation unit being provided with a differential operation unit for computing a difference between at least two comparison signals output from comparator unit.
REFERENCES:
patent: 4588981 (1986-05-01), Senn
patent: 5245343 (1993-09-01), Greenwood et al.
patent: 5392039 (1995-02-01), Thurston
patent: 5644308 (1997-07-01), Kerth et al.
patent: 5831562 (1998-11-01), Van Auken et al.
patent: 6489906 (2002-12-01), Matsumoto et al.
patent: 6507302 (2003-01-01), Sakimura
patent: 6593865 (2003-07-01), Nestler et al.
patent: 7030796 (2006-04-01), Shim et al.
patent: 7362255 (2008-04-01), Tsyrganovich
patent: 7466257 (2008-12-01), Akizuki et al.
patent: 7504977 (2009-03-01), Doorenbos et al.
patent: 7511648 (2009-03-01), Trifonov et al.
patent: 7576670 (2009-08-01), Clara et al.
patent: 7626529 (2009-12-01), Robert
patent: 2005/0204815 (2005-09-01), Mase et al.
patent: 2007/0216557 (2007-09-01), Ebner et al.
patent: 7-249989 (1995-09-01), None
patent: 2001-237706 (2001-08-01), None
International Search Report issued Mar. 4, 2008 in the International (PCT) Application of which the present application is the U.S. National Stage.
Kawai Takashi
Murakami Hideyuki
Nabetani Kouji
Nguyen Linh V
Panasonic Corporation
Wenderoth , Lind & Ponack, L.L.P.
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