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Class Information
Number: 341/131
Name: Coded data generation or conversion > Analog to or from digital conversion > Increasing converter resolution (e.g., dithering)
Description: Subject matter where, from a system having a quantizing interval corresponding to a nominally n-bit system, one obtains a system having an n+1 or greater bit system due to the application of an oscillating or periodic signal to the input signal.


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
7602324 A/D converter and method for converting analog signals into digital signals Oct. 13, 2009
7580157 High-pass dither generator and method Aug. 25, 2009
7561085 Systems and methods for improving data converters Jul. 14, 2009
7554471 System and method for improving linearity of a DAC Jun. 30, 2009
7548177 Multiple FM dither Jun. 16, 2009
7538701 System and method for improving dynamic performance of a circuit May. 26, 2009
7539276 Method of processing a sampled spread spectrum signal stream May. 26, 2009
7535391 Analog-to-digital converter having random capacitor assignment and method thereof May. 19, 2009
7504978 Digital-analog converter capable of easily extending resolution Mar. 17, 2009
7504972 Method for increasing the resolution of analog to digital conversion Mar. 17, 2009
7498963 Method for generating a modulator input signal and premodulator Mar. 3, 2009
7486213 Method and system for increasing resolution and accuracy of an analog to digital converter Feb. 3, 2009
7479909 Suppression of even-numbered harmonic distortion in a non-linear element Jan. 20, 2009
7471223 Delta-sigma modulator circuits in which DITHER is added to the quantization levels of methods of operating the same Dec. 30, 2008
7456766 Sigma-delta modulation with offset Nov. 25, 2008
7446691 Methods and apparatus for multiplexed signal sources using an analog-to-digital converter Nov. 4, 2008
7443328 Apparatus and method of using spread pulse modulation to increase the control resolution of an electronic device Oct. 28, 2008
7443324 Apparatus and method for dithering a sigma-delta modulator Oct. 28, 2008
7425911 Signal-to-noise ratio when using fewer bits than the number of output bits of an analog to digital converter Sep. 16, 2008
7411534 Analog-to-digital converter (ADC) having integrator dither injection and quantizer output compensation Aug. 12, 2008
7408489 Method and system for mixed analog-digital automatic gain control Aug. 5, 2008
7394418 Apparatus comprising a sigma-delta modulator and method of generating a quantized signal-delta modulator Jul. 1, 2008
7385537 Linear feedback shift register first-order noise generator Jun. 10, 2008
7382296 System for mixed analog-digital automatic gain control Jun. 3, 2008
7362250 Dynamic dither for sigma-delta converters Apr. 22, 2008
7348906 INL curve correction in a pipeline ADC Mar. 25, 2008
7324028 Self-calibrating continuous-time delta-sigma modulator Jan. 29, 2008
7317411 Delta-sigma modulator having quantizer code pattern detection controlled dither Jan. 8, 2008
7317410 System and method for spectral shaping of dither signals Jan. 8, 2008
7307563 Apparatus and method for performing dithering in communication system using orthogonal frequency division multiplexing scheme Dec. 11, 2007
7301489 Dithering noise cancellation for a delta-sigma modulator Nov. 27, 2007
7301488 Digital PWM controller for preventing limit cycle oscillations Nov. 27, 2007
7277033 System and method for subtracting dither reference during analog-to-digital conversion Oct. 2, 2007
7277032 Low-pass filter based delta-sigma modulator Oct. 2, 2007
7248195 Methods and apparatus for multiplexed digital inputs using an analog-to-digital converter Jul. 24, 2007
7224299 System and method for adjusting dither in a delta sigma modulator May. 29, 2007
7224305 Analog-to-digital modulation May. 29, 2007
7221301 Method and system for mitigating background noise for a Sigma-Delta digital-to-analog converter May. 22, 2007
7221299 Method and apparatus for an ADC circuit with wider input signal swing May. 22, 2007
7221724 Precision timing generation May. 22, 2007
7221302 Delta-sigma modulator coefficient calibration method and apparatus May. 22, 2007
7218258 Method and system for mixed analog-digital automatic gain control May. 15, 2007
7215267 Analog-to-digital converter with dither control May. 8, 2007
7176821 Reduced area digital sigma-delta modulator Feb. 13, 2007
7176817 Continuous time delta sigma ADC with dithering Feb. 13, 2007
7164979 Data transmission system and occupant protection device Jan. 16, 2007
7106232 Analog multiplexer and variable gain amplifier for intermediate frequency applications Sep. 12, 2006
7107175 Continuous digital background calibration in pipelined ADC architecture Sep. 12, 2006
7098824 Apparatus and method for dithering image signals in combination with offset Aug. 29, 2006
7088779 Method and apparatus for reducing the word length of a digital input signal and method and apparatus for recovering a digital input signal Aug. 8, 2006

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