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Class Information
Number: 341/121
Name: Coded data generation or conversion > Converter calibration or testing > Trimming control circuits
Description: Subject matter wherein auxiliary circuits are provided by means of which the converter is altered to be within specifications.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8681027 Digital receiver and optical communication system that uses same Mar. 25, 2014
8648740 Testing apparatus and method for testing analog-to-digital converter Feb. 11, 2014
8547256 Analog unit Oct. 1, 2013
8502714 Method for calibrating analog-to-digital converting circuits Aug. 6, 2013
8497791 Operational amplifier Jul. 30, 2013
8446304 Digital background calibration system and method for successive approximation (SAR) analogue to digital converter May. 21, 2013
8441382 Current steering DAC with switched cascode output current source/sink May. 14, 2013
8421658 Parallel pipelined calculation of two calibration values during the prior conversion cycle in a successive-approximation-register analog-to-digital converter (SAR-ADC) Apr. 16, 2013
8421659 Minimum differential non-linearity trim DAC Apr. 16, 2013
8350737 Flash analog to digital converter with method and system for dynamic calibration Jan. 8, 2013
8314725 On-die digital-to-analog conversion testing Nov. 20, 2012
8314726 Time stamp generation Nov. 20, 2012
8253612 Self-calibrating R-2R ladder and method thereof Aug. 28, 2012
8248280 Successive approximation register (SAR) analog-to-digital converter (ADC) having optimized filter Aug. 21, 2012
8228220 Method, system and apparatus for operation of a converter Jul. 24, 2012
8134485 Device for converting analog signal into digital values and correcting the values Mar. 13, 2012
8130323 Closed loop DAC calibration Mar. 6, 2012
8120517 Digital-analog conversion circuit and output data correction method of the same Feb. 21, 2012
8106800 Self-calibrating signal reconstruction system Jan. 31, 2012
8035538 Sigma-delta conversion circuit suitable for photocurrent measurement applications Oct. 11, 2011
8031092 Dual-mode based digital background calibration of pipelined ADCs for gain variations and device mismatches Oct. 4, 2011
7973686 Integrated circuit device and electronic instrument Jul. 5, 2011
7973688 Photonic filter bank for high-speed analog-to-digital conversion Jul. 5, 2011
7956777 Method, system and apparatus for dual mode operation of a converter Jun. 7, 2011
7952501 Demodulator capable of compensating offset voltage of RF signal and method thereof May. 31, 2011
7852243 Receiver circuit Dec. 14, 2010
7843369 Analog-to-digital converter and communication device and wireless transmitter and receiver using the same Nov. 30, 2010
7825838 Capacitor rotation method for removing gain error in sigma-delta analog-to-digital converters Nov. 2, 2010
7821436 System and method for reducing power dissipation in an analog to digital converter Oct. 26, 2010
7773019 Digital-to-analog converter Aug. 10, 2010
7733251 A/D convertion controlling device and image forming apparatus Jun. 8, 2010
7705755 Signal converting apparatus with built-in self test Apr. 27, 2010
7683814 Constant current source, ramp voltage generation circuit, and A/D converter Mar. 23, 2010
7679537 Precision microcontroller-based pulse width modulation digital-to-analog conversion circuit and method Mar. 16, 2010
7671769 Multistage analog/digital converter and method for calibrating said converter Mar. 2, 2010
7671770 Single pass INL trim algorithm for networks Mar. 2, 2010
7659840 Sigma-delta conversion circuit suitable for photocurrent measurement applications Feb. 9, 2010
7649480 Calibration circuit and associated method Jan. 19, 2010
7639168 Systems and methods for switch resistance control in digital to analog converters (DACs) Dec. 29, 2009
7602322 Analog-to-digital conversion controller, optical receiving device, optical receiving method, and waveform-distortion compensating device Oct. 13, 2009
7551109 Method, system and apparatus for dual mode operation of a converter Jun. 23, 2009
7511645 Apparatus and method for auto-zeroing a sampled comparator Mar. 31, 2009
7468686 Systems and methods for providing compact digitally controlled trim of multi-segment circuits Dec. 23, 2008
7460043 Analog-to-digital converter compensation system and method Dec. 2, 2008
7460047 Method for VCOM level adjustment with integrated programmable resistive arrays Dec. 2, 2008
7414559 Dynamic bias circuit Aug. 19, 2008
7382153 On-chip resistor calibration for line termination Jun. 3, 2008
7348907 Range compression in oversampling analog-to-digital converters Mar. 25, 2008
7324031 Dynamic bias circuit Jan. 29, 2008
7310266 Semiconductor device having memory cells implemented with bipolar-transistor-antifuses operating in a first and second mode Dec. 18, 2007

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