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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:

Patent Number Title Of Patent Date Issued
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
6463093 METHOD AND APPARATUS TO REDUCE SPURIOUS AND INTERMODULATION PRODUCTS IN WIRELESS BROADBAND MULTI-CARRIER DIGITAL TRANSCEIVER EQUIPMENT THROUGH STATIC NON-LINEARITY CORRECTION OF DIGITAL CONVER Oct. 8, 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
5594439 Diagnosing problems in an electrical system by monitoring changes in nonlinear characteristics Jan. 14, 1997
5594612 Analog-to-digital converter with digital linearity correction 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
5047769 Methods of correcting data conversion/transfer errors in a vibratory energy imaging system utilizing a plurality of channels Sep. 10, 1991
5047771 Apparatus for implementation of desired input/output function in an electronic system having a plurality of channels Sep. 10, 1991
5043730 Digital-analog conversion circuit with application of voltage biasing for distortion stabilization Aug. 27, 1991
5023490 Analog signal compression circuit Jun. 11, 1991
4994803 Random number dither circuit for digital-to-analog output signal linearity Feb. 19, 1991
4933675 Audio digital/analog encoding and decoding Jun. 12, 1990
4914440 Adjustable current source and digital/analog converter with autocalibration using such a source Apr. 3, 1990
4862168 Audio digital/analog encoding and decoding Aug. 29, 1989
4804941 Circuit for compensating a linearity of an input/output characteristic of a parallel comparison type analog-to-digital converter Feb. 14, 1989
4800574 Digital modulator/demodulator including non-linear analog-to-digital converter and circuitry compensating for the non-linearity of the converter Jan. 24, 1989
4794794 Thermal anemometer Jan. 3, 1989
4768208 Mid-symbol sampling timing estimator Aug. 30, 1988
4764751 Method of nonlinear A/D conversion Aug. 16, 1988
4716398 Linearity control circuit for digital to analog converter Dec. 29, 1987
4270177 Digital amplitude control for digital audio signal May. 26, 1981
4217574 Analog to digital converter having nonlinear amplitude transformation Aug. 12, 1980
4110746 A-D converter having nonlinear characteristics Aug. 29, 1978
4064423 Digital system and method for generating analog control signals Dec. 20, 1977
4064396 Dynamic linearization system for a radiation gauge Dec. 20, 1977
4045658 Digitized linearizing correction apparatus with frequency modulation Aug. 30, 1977
4031530 Digital second-order clock linearizer Jun. 21, 1977
4023159 Non-linear analogue-digital converter May. 10, 1977
3979745 System and method for linearizing analog measurements during analog-to-digital conversion Sep. 7, 1976
3975727 Automated calibration and standardization apparatus Aug. 17, 1976
3953718 Digital calculating apparatus Apr. 27, 1976
3939459 Digital signal linearizer Feb. 17, 1976



 
 
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