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Class Information
Number: 341/154
Name: Coded data generation or conversion > Analog to or from digital conversion > Digital to analog conversion > Using ladder network
Description: Subject matter where the conversion utilizes an impedance network (typically an R\2R ladder network) having a number of nodes equal to the number of bits in the digital signal, each node being selectively fed with equal currents in response to the digital signals and thereby outputting an electrical signal representative of the digital input signal.










Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
8711022 Resistor-2 resistor (R-2R) digital-to-analog converter with resistor network reversal Apr. 29, 2014
8704692 Digital to analog converter Apr. 22, 2014
8643521 Digital-to-analog converter with greater output resistance Feb. 4, 2014
8629793 Continuous-time delta-sigma ADC with compact structure Jan. 14, 2014
8624653 Circuit and method for determining comparator offsets of electronic devices Jan. 7, 2014
8581766 DAC with novel switch regulation Nov. 12, 2013
8575961 Multi-valued driver circuit Nov. 5, 2013
8558726 Testing of analog-to-digital converters Oct. 15, 2013
8552898 Apparatus and method for dynamically dampening a transient step response Oct. 8, 2013
8514120 Digital-to-analog converter with a shared resistor string Aug. 20, 2013
8487801 Analog-to-digital converter and signal processing system Jul. 16, 2013
8487800 Resistive digital-to-analog conversion Jul. 16, 2013
8462036 Digital-to-analog converter with non-uniform resolution Jun. 11, 2013
8456347 Analog-to-digital converter Jun. 4, 2013
8421662 DA converter Apr. 16, 2013
8362870 Impedance calibration circuit with uniform step heights Jan. 29, 2013
8339301 Gamma voltage generator and DAC having gamma voltage generator Dec. 25, 2012
8330634 Precision sub-radix.sub.2 DAC with linearity calibration Dec. 11, 2012
8284014 Digital potentiometer with independent control over both resistive arms Oct. 9, 2012
8269659 System and method for compact cyclic digital to analog converter Sep. 18, 2012
8253612 Self-calibrating R-2R ladder and method thereof Aug. 28, 2012
8242944 Digital-to-analog converter circuit including adder drive circuit and display Aug. 14, 2012
8212754 Grayscale voltage generating circuit providing control of grayscale resistor current Jul. 3, 2012
8188899 Un-buffered segmented R-DAC with switch current reduction May. 29, 2012
8094109 Data driver with multilevel voltage generating circuit, and liquid crystal display apparatus including layout pattern of resistor string of the multilevel generating circuit Jan. 10, 2012
8063807 Equalization circuitry including a digital-to-analog converter having a voltage divider and a multiplexer Nov. 22, 2011
8031093 Reduced component digital to analog decoder and method Oct. 4, 2011
8031100 Fine resistance adjustment for polysilicon Oct. 4, 2011
8018367 N-bit ADC reader Sep. 13, 2011
8013772 Reduced area digital-to-analog converter Sep. 6, 2011
8004439 Digital to analog converter Aug. 23, 2011
7999713 Parallel analog-digital converter with dual static ladder Aug. 16, 2011
7982581 Digital potentiometer architecture with multiple string arrays allowing for independent calibration in rheostat mode Jul. 19, 2011
7973690 Gamma voltage generation circuit Jul. 5, 2011
7956786 Digital-to-analogue converter Jun. 7, 2011
7945937 Programmable display device May. 17, 2011
7936295 Digital/analog converter circuit May. 3, 2011
7903012 D/A converter and reference voltage circuit including same Mar. 8, 2011
7884747 Digital to analog converters having circuit architectures to overcome switch losses Feb. 8, 2011
7884783 Data driver, organic light emitting display, and method of driving the same Feb. 8, 2011
7880531 System, apparatus, and method for selectable voltage regulation Feb. 1, 2011
7868809 Digital to analog converter having fastpaths Jan. 11, 2011
7852253 Digitally adjustable quantization circuit Dec. 14, 2010
7847718 Digital-to-analog converter, data driver and display device using same Dec. 7, 2010
7830291 Flexible analog-to-digital converter Nov. 9, 2010
7825704 Threshold personalization testmode Nov. 2, 2010
7812754 Digital to analog converter and method thereof Oct. 12, 2010
7796075 Method and apparatus for internally calibrating mixed-signal devices Sep. 14, 2010
7773013 Voltage interpolation in digital-to-analog signal conversion Aug. 10, 2010
7773019 Digital-to-analog converter Aug. 10, 2010

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