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Class Information
Number: 341/140
Name: Coded data generation or conversion > Analog to or from digital conversion > Nonlinear > Linearization (e.g., nonlinear transfer characteristic compensates for nonlinear transducer)
Description: Subject matter wherein nonlinear code conversion is used to provide an output which varies in direct proportion to the input.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8665126 .SIGMA..DELTA. difference-of-squares LOG-RMS to DC converter with forward and feedback paths signal squaring Mar. 4, 2014
8665125 Electronic device and method for measuring differential non-linearity (DNL) of an SAR ADC Mar. 4, 2014
8660207 Digital pre-distortion with carrier cancellation Feb. 25, 2014
8587461 Data acquisition system with analog-to-digital converter having integrated multiplexer control Nov. 19, 2013
8581760 Digital to analog converter Nov. 12, 2013
8564465 Analog to digital conversion apparatus with a reduced number of ADCs Oct. 22, 2013
8552893 Control system using nonlinear delta-sigma modulator with switching period error compensation Oct. 8, 2013
8547257 Digital error correction in an analog-to-digital converter Oct. 1, 2013
8542142 Interleaved analog to digital converter with reduced number of multipliers for digital equalization Sep. 24, 2013
8537041 Interpolation-based digital pre-distortion architecture Sep. 17, 2013
8525719 Electronic device and method for analog to digital conversion using successive approximation Sep. 3, 2013
8519879 Precision charge-dump circuit Aug. 27, 2013
8519877 Low noise and low power arrangement for playing audio signals Aug. 27, 2013
8514117 Excess loop delay compensation for a continuous time sigma delta modulator Aug. 20, 2013
8514122 Analog-digital conversion system comprising a double automatic gain control loop Aug. 20, 2013
8508395 Time varying quantization-based linearity enhancement of signal converters and mixed-signal systems Aug. 13, 2013
8508393 Analog-to-digital conversion apparatus and signal processing system Aug. 13, 2013
8487801 Analog-to-digital converter and signal processing system Jul. 16, 2013
8466817 Electronic device and method for driving an internal function block of a processor of the electronic device to operate in a linear region Jun. 18, 2013
8457794 Multi-segment linearization of micro-actuator transfer functions Jun. 4, 2013
8378869 Fast data weighted average circuit and method Feb. 19, 2013
8150263 Optical code division multiplex signal generator Apr. 3, 2012
7786918 A/D conversion circuit and electronic instrument Aug. 31, 2010
7733251 A/D convertion controlling device and image forming apparatus Jun. 8, 2010
7532869 Automatic power level control circuit for a transceiver device May. 12, 2009
7456768 Analog-to-digital converters based on an interleaving architecture and associated methods Nov. 25, 2008
7423564 Optical signal processing device for A/D converter including optical encoders with nonlinear loop mirrors Sep. 9, 2008
7348908 Linearity corrector using filter products Mar. 25, 2008
7312736 Trading off visibility for volume of data when profiling memory events Dec. 25, 2007
7212592 Digitally programmable gain control circuit May. 1, 2007
6901108 Apparatus and method for adaptive control May. 31, 2005
6897842 Nonlinearly mapping video date to pixel intensity while compensating for non-uniformities and degradations in a display May. 24, 2005
6778126 Structures and methods that improve the linearity of analog-to-digital converters with introduced nonlinearities Aug. 17, 2004
6525683 Nonlinearly converting a signal to compensate for non-uniformities and degradations in a display Feb. 25, 2003
6507347 Selected data compression for digital pictorial information Jan. 14, 2003
6489911 Direct digital waveform synthesizer with DAC error correction Dec. 3, 2002
6448754 BIST method for testing cut-off frequency of low-pass filters Sep. 10, 2002
6373471 Keyboard with interchangeable connection function Apr. 16, 2002
6337643 Method and device for generating a random signal and digital-to-analog converting systems using same Jan. 8, 2002
6043768 Device and method for switching between different operating modes of a transducer Mar. 28, 2000
5822225 Self-calibrating data processors and methods for calibrating same Oct. 13, 1998
5751235 System and method for enhancing joystick performance May. 12, 1998
5638073 Method of linearizing variations in the transfer characteristic of a D/A converter, as well as an arrangement and use thereof Jun. 10, 1997
5594612 Analog-to-digital converter with digital linearity correction Jan. 14, 1997
5594439 Diagnosing problems in an electrical system by monitoring changes in nonlinear characteristics Jan. 14, 1997
5196851 Linearizing non-linear analog-to-digital process and circuit Mar. 23, 1993
5121120 Programmable digital measuring and control instrument for a vacuum gauge Jun. 9, 1992
5113188 Analog-to-digital converter utilizing devices with current versus voltage characteristics with a plurality of peaks and negative resistance regions between peaks May. 12, 1992
5061927 Floating point analog to digital converter Oct. 29, 1991

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