Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Reexamination Certificate
2011-08-09
2011-08-09
JeanPierre, Peguy (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Digital to analog conversion
C341S138000
Reexamination Certificate
active
07994956
ABSTRACT:
A data driver having a positive-polarity reference voltage generation circuit, a positive-polarity decoder, a first amplifier that outputs a positive-polarity gray scale voltage, a negative-polarity reference voltage generation circuit that generates a plurality of negative-polarity reference voltages, a negative-polarity decoder that outputs first to nth negative-polarity reference voltages from among the negative-polarity reference voltages, a negative-polarity amplifier that receives the selected first to nth negative-polarity reference voltages and outputs a negative-polarity gray scale voltage, and an output switch circuit that switches and controls whether to directly connect the first output terminal and the second output terminal to first and second data lines, respectively, or to cross-connect the first output terminal and the second output terminal to the second data line and the first data line, respectively, based on a control signal.
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Japanese Office Action dated Apr. 24, 2009 with Partial English Translation.
Japanese Office Action dated Sep. 1, 2008 with Partial English Translation.
Jean-Pierre Peguy
McGinn IP Law Group PLLC
Renesas Electronics Corporation
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