Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Reexamination Certificate
2007-11-01
2009-08-18
JeanPierre, Peguy (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Digital to analog conversion
C341S138000
Reexamination Certificate
active
07576674
ABSTRACT:
Disclosed is a data driver including a reference voltage generation circuit that generates and outputs a plurality of reference voltages, a decoder circuit that selects from among the reference voltages n (where n is an integer greater than or equal to two) reference voltages inclusive of reference voltages that may be identical and outputs the n reference voltages from n output terminals thereof, and an amplifying circuit that includes n differential circuits, a feedback resistor, and a resistor. The n output terminals are connected to non-inverting input terminals of the n differential circuits, respectively. The amplifying circuit outputs an output voltage obtained by operating and synthesizing the n reference voltages. One end of the feedback resistor is connected to an output terminal of the amplifying circuit, and the other end is connected to inverting input terminals of the n differential circuits connected in common. The resistor is connected between a voltage supply and the commonly coupled inverting input terminals of the n differential circuits.
REFERENCES:
patent: 4978959 (1990-12-01), Chong et al.
patent: 5396245 (1995-03-01), Rempfer
patent: 5859606 (1999-01-01), Schrader et al.
patent: 6246351 (2001-06-01), Yilmaz
patent: 6266040 (2001-07-01), Nagatomo
patent: 6373419 (2002-04-01), Nakao
patent: 6441763 (2002-08-01), Nakao
patent: 6469647 (2002-10-01), Kinugasa et al.
patent: 6707442 (2004-03-01), Watanabe
patent: 6937178 (2005-08-01), Rempfer et al.
patent: 7236114 (2007-06-01), Ahn
patent: 11-184444 (1999-07-01), None
patent: 2000-183747 (2000-06-01), None
patent: 2001-125543 (2001-05-01), None
patent: 2002-43944 (2002-02-01), None
patent: 2002-062852 (2002-02-01), None
Japanese Office Action dated Sep. 1, 2008 with partial English-Language Translation.
Japanese Office Action dated Apr. 24, 2009 with Partial English Translation.
Jean-Pierre Peguy
McGinn IP Law Group PLLC
NEC Electronics Corporation
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