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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

Patent Number Title Of Patent Date Issued
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
7317410 System and method for spectral shaping of dither signals Jan. 8, 2008
7317411 Delta-sigma modulator having quantizer code pattern detection controlled dither 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
7221299 Method and apparatus for an ADC circuit with wider input signal swing May. 22, 2007
7221301 Method and system for mitigating background noise for a Sigma-Delta digital-to-analog converter May. 22, 2007
7221302 Delta-sigma modulator coefficient calibration method and apparatus May. 22, 2007
7221724 Precision timing generation 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
7075466 System and method for improving performance of an analog to digital converter Jul. 11, 2006
7071860 System and method for noise cancellation in a signal processing circuit Jul. 4, 2006
7068204 System that facilitates reading multi-level data in non-volatile memory Jun. 27, 2006
7042382 Method of time synchronization of multiple A/D sample data records May. 9, 2006
7042375 System and method using dither to tune a filter May. 9, 2006
7035756 Continuous digital background calibration in pipelined ADC architecture Apr. 25, 2006
7015851 Linearizing ADCs using single-bit dither Mar. 21, 2006
7015845 Digital to analog converter system Mar. 21, 2006
7009548 Variable accuracy pipeline ADC for WLAN communications devices Mar. 7, 2006
7002497 Methods and systems for digital dither Feb. 21, 2006
6992606 Method and circuit for multi-standard sigma-delta modulator Jan. 31, 2006
6980145 System and method for noise cancellation in a signal processing circuit Dec. 27, 2005
6975255 Random interleaving dither for sigma-delta analog-to-digital converters Dec. 13, 2005
6950047 Method and apparatus for combining outputs of multiple DACs for increased bit resolution Sep. 27, 2005
6950050 Method and apparatus for increasing effective resolution of analog output of digital-to-analog converter (DAC) having predetermined digital word size, where DAC drives plant Sep. 27, 2005
6950048 Dither system for a quantizing device Sep. 27, 2005
6940434 Methods and systems for digital dither Sep. 6, 2005
6940433 Modulation method for signal crosstalk mitigation in electrostatically driven devices Sep. 6, 2005
6927713 Response-based analog-to-digital conversion apparatus and method Aug. 9, 2005
6919831 Circuit, apparatus, and method for converting analog signals into digital signals Jul. 19, 2005
6917318 Analog to digital converter that services voice communications Jul. 12, 2005

1 2 3 4 5


 
 
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