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Class Information
Number: 341/146
Name: Coded data generation or conversion > Analog to or from digital conversion > Digital to analog conversion > Serial conversion
Description: Subject matter where the conversion occurs as a series of sequential conversions made in serially connected stages the output of a given stage being dependent on the results of the preceding stage.

Patents under this class:

Patent Number Title Of Patent Date Issued
8514122 Analog-digital conversion system comprising a double automatic gain control loop Aug. 20, 2013
8503514 High speed switch with data converter physical ports Aug. 6, 2013
8503515 High speed switch with data converter physical ports and processing unit Aug. 6, 2013
8401502 Method and system for a control scheme on power and common-mode voltage reduction for a transmitter Mar. 19, 2013
8031098 DAC circuit with pseudo-return-to-zero scheme and DAC calibration circuit and method Oct. 4, 2011
7893856 Digital-to-analog conversion circuit Feb. 22, 2011
7783795 Serial communication circuit and A/D conversion system having the same Aug. 24, 2010
7729300 Class-B transmitter and replica transmitter for gigabit ethernet applications Jun. 1, 2010
7675450 Digital-to-analog converter (DAC) for high frequency and high resolution environments Mar. 9, 2010
7667567 High precision voltage measuring passive network Feb. 23, 2010
7652605 Semiconductor device and audio processor chip Jan. 26, 2010
7593483 Nonlinear mapping in digital-to-analog and analog-to-digital converters Sep. 22, 2009
7589653 Output architecture for LCD panel column driver Sep. 15, 2009
7589655 Method and system for a control scheme on power and common-mode voltage reduction for a transmitter Sep. 15, 2009
7579896 Method and apparatus for generating multiple analog signals using a single microcontroller output pin Aug. 25, 2009
7456772 Fast, high resolution digital-to-analog converter Nov. 25, 2008
7034732 Multi-stage digital-to-analog converter Apr. 25, 2006
6867722 H-bridge common-mode noise reduction circuit Mar. 15, 2005
6639528 Apparatus for multi-channel signal processing and communication terminal using the same Oct. 28, 2003
6636575 Cascading PLL units for achieving rapid synchronization between digital communications systems Oct. 21, 2003
6621442 Analog-to-digital conversion with piece-wise non-linear reference waveforms Sep. 16, 2003
6501409 Switched-capacitor DAC/continuous-time reconstruction filter interface circuit Dec. 31, 2002
6448918 Digital/analog converter Sep. 10, 2002
6407682 High speed serial-deserializer receiver Jun. 18, 2002
6380878 Digital-to-analog conversion circuit Apr. 30, 2002
6078276 Digital-to-analog conversion of LSB-first type using selective inversion based on gray code bits Jun. 20, 2000
6041080 Signal processing system and method for digitally mixing a plurality of analog input signals Mar. 21, 2000
5896100 Method and apparatus for analog-to-digital or digital-to-analog conversion Apr. 20, 1999
5798724 Interpolating digital to analog converter architecture for improved spurious signal suppression Aug. 25, 1998
5781139 Switched capacitor digital-to analog converter Jul. 14, 1998
5748128 Reduced current quadratic digital/analog converter with improved settling-time May. 5, 1998
5727024 Circuit configuration for conversion of a one-bit digital signal into an analog signal Mar. 10, 1998
5691721 Digital/analog converter having separately formed voltage dividing resistance regions Nov. 25, 1997
5673045 Digital-to-analog conversion circuit and analog-to-digital conversion device using the circuit Sep. 30, 1997
5614905 High speed serial digital data to analog signal converter Mar. 25, 1997
5519396 Network swappers and circuits constructed from same May. 21, 1996
5307064 Digital-to-analog converter capable of reducing load of low-pass filter Apr. 26, 1994
5274373 Digital analog converter Dec. 28, 1993
5107265 Analog to digital converter Apr. 21, 1992
4992724 Bridge balancing circuit Feb. 12, 1991
4990912 Digital peak/valley detector Feb. 5, 1991
4978959 Analog to digital converter, a digital to analog converter and an operational amplifier therefor Dec. 18, 1990
4929947 Constant width pulse distribution in a digital to analog converter for serial digital data May. 29, 1990
4905006 Digital-to-analog converter Feb. 27, 1990
4901077 Sigma-delta modulator for D-to-A converter Feb. 13, 1990
4868572 Circuit arrangement for converting digital sound-signal values into an analog sound signal Sep. 19, 1989
4843393 D/A converter Jun. 27, 1989
4829299 Adaptive-filter single-bit digital encoder and decoder and adaptation control circuit responsive to bit-stream loading May. 9, 1989
4427971 Method and apparatus for the conversion of digital words to analog signals Jan. 24, 1984

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