Patents
Sitemap › H03 - Basic electronic circuitry › H03M - Coding, decoding or code conversion, in general › H03M 3 - Conversion of analogue values to or from differential modulation
Patents for H03M 3 - Conversion of analogue values to or from differential modulation (7,070)
11/2005
11/02/2005EP1590934A2 Signal processing system with baseband noise modulation chopper circuit timing to reduce noise
11/02/2005EP1590905A2 Signal processing system with baseband noise modulation and noise fold back reduction
11/02/2005EP1590888A2 Signal processing system with baseband noise modulation and noise filtering
11/01/2005US6961385 Signal processing system with baseband noise modulation chopper circuit timing to reduce noise
10/2005
10/27/2005WO2005101667A1 Schemes to implement multi-level pwm in digital system
10/27/2005US20050237694 Methods and apparatus for reducing thermal noise
10/27/2005US20050237233 Programmbale loop filter for use with a sigma delta analog-to-digital converter and method of programming the same
10/26/2005EP1456956B1 Sigma-delta converter comprising noise suppression
10/26/2005EP0978165B1 Delta-sigma pwm dac for reduced switching
10/26/2005CN1689234A Circuit arrangement and method for sigma-delta conversion with reduced idle tones
10/26/2005CN1225090C One-bit digital signal processing device
10/25/2005US6958717 Method and apparatus for interconnecting analog and digital sections of A/D and D/A converters
10/20/2005WO2005099098A1 Sigma delta modulator
10/20/2005WO2005099096A1 Gain control for delta sigma analog-to-digital converter
10/20/2005WO2005074139A3 A da-converter system and a method for converting a multi-bit digital signal to an analog signal
10/20/2005WO2004095704A3 Variable rate sigma delta modulator
10/20/2005US20050231411 Switched capacitor integrator system
10/20/2005US20050231410 Schemes to implement multi-level PWM in digital system
10/20/2005US20050231408 Variable modulus interpolator, and a variable frequency synthesiser incorporating the variable modulus interpolator
10/20/2005US20050231407 Time-interleaved band-pass delta-sigma modulator
10/19/2005CN1685617A Sigma-delta modulation
10/18/2005US6956515 Digital to analog converter augmented with direct charge transfer techniques
10/18/2005US6956514 Delta-sigma modulators with improved noise performance
10/18/2005US6956513 Error feedback structure for delta-sigma modulators with improved stability
10/13/2005WO2005096505A1 Switched capacitor signal scaling circuit
10/13/2005WO2005096504A1 Delta sigma modulator with multiple filters
10/13/2005US20050225472 Method and apparatus for an image canceling digital-to-analog converter (DAC)
10/13/2005US20050225467 Method and system for analog to digital conversion using digital pulse width modulation (pwm)
10/13/2005US20050225463 High-speed MASH sigma-delta modulator architecture and method of operation thereof
10/13/2005US20050225367 Methods and system for reducing effects of digital loop dead zones
10/13/2005DE102004013108A1 Verfahren zum Betreiben einer Versorgungseinheit für eine Treiberschaltung sowie Versorgungseinheit für eine Treiberschaltung A method for operating a supply unit for a driver circuit and supply unit for a driver circuit
10/12/2005EP1540826A4 Delta-sigma modulation circuits and methods utilizing multiple noise attenuation bands and data converters using the same
10/11/2005US6954162 Low power, high SNR, high order delta sigma modulator stage having integrators with pipelined cross coupled input circuits
10/11/2005US6954161 Cascade delta-sigma modulator
10/11/2005US6954160 Filter for digitally processing an analog input signal with analog feedback
10/11/2005US6954159 Low distortion band-pass analog to digital converter with feed forward
10/06/2005WO2005093959A1 Method of reducing inter-symbol interference, a sigma-delta converter for performing this method and a storage medium conveying information generated by this method
10/06/2005WO2005093934A1 Method for operating a supply unit for a driver circuit, and supply unit for a driver circuit
10/06/2005WO2004079915A3 Feedback steering delta-sigma modulators and systems using the same
10/06/2005US20050220193 Transmission apparatus, reception apparatus and transmission/reception system
10/06/2005US20050219105 High precision analog to digital converter
10/06/2005US20050219096 Beamformed ultrasonic imager with delta-sigma feedback control
10/06/2005US20050219065 Gain control for delta sigma analog-to-digital converter
10/06/2005US20050218996 Delta-sigma modulated fractional-N PLL frequency synthesizer and wireless communication apparatus
10/06/2005US20050218961 Operational amplifier integrator
10/06/2005DE10335108B4 Sigma-Delta-Modulator mit getakteter Verzögerungsleitung Sigma-delta modulator with a clocked delay line
10/05/2005EP1583245A2 Data converter device and data conversion method, and transmitter circuit, communications device and electronic device using the same
10/05/2005CN1678055A Transmission apparatus, reception apparatus and transmission/reception system
10/04/2005US6952176 Digital-to-analogue converter circuits
10/04/2005US6952174 Serial data interface
09/2005
09/29/2005US20050213669 Digital signal processing apparatus and digital signal processing method
09/29/2005US20050212591 Switched capacitor signal scaling circuit
09/29/2005DE102004030812A1 Power-saving multi-bit delta-sigma converter esp. for high-bandwidth and very high clock-rate systems, uses clocked quantization device for quantizing filtered difference signal
09/28/2005CN1674445A Digital signal processing apparatus and digital signal processing method
09/27/2005US6950049 Computer program product for performing digital-to-analog conversion
09/27/2005US6950046 IC with built-in self-test and design method thereof
09/22/2005US20050206543 Time-continuous sigma/delta analog-to-digital converter
09/22/2005DE102004009611A1 Zeitkontinuierlicher Sigma-Delta-Analog-Digital-Wandler A continuous-time sigma-delta analog-to-digital converter
09/21/2005CN1672330A Signal processing apparatus, non-integer divider, and fractional n-pll synthesizer using the same
09/15/2005WO2004112298A3 Multichannel time encoding and decoding of a signal
09/15/2005US20050202790 Data converter device and data conversion method, and transmitter circuit, communications device and electronic device using the same
09/14/2005EP1575162A1 Audio amplifier
09/14/2005CN1667949A Data converter device and data conversion method, and transmitter circuit, communications device and electronic device using the same
09/13/2005US6943717 Sigma delta class D architecture which corrects for power supply, load and H-bridge errors
09/13/2005US6943716 Variable rate sigma delta modulator
09/13/2005US6943715 Bandpass sigma-delta analog-to-digital converter and mash-sigma-delta converter incorporating same
09/13/2005CA2253747C Switched current delta-sigma modulator
09/09/2005WO2005083888A1 Power-saving multibit delta-sigma converter
09/09/2005WO2005082236A2 Multi-bit adc with sigma-delta modulation
09/09/2005WO2005053159A3 Clock pulse generator apparatus with reduced jitter clock phase
09/09/2005CA2556754A1 Multi-bit adc with sigma-delta modulation
09/08/2005DE102004007207A1 Verfahren zur Charakterisierung von sowie zur automatischen Korrektur linearer Fehler in Analog-Digital-Wandlern A method for characterizing and for automatically correcting nonlinear errors in analog-to-digital converters
09/07/2005CN1218490C Clock signal generator
09/06/2005US6940438 Method and circuit for reducing quantizer input/output swing in a sigma-delta modulator
09/06/2005US6940436 Analog-to-digital conversion system with second order noise shaping and a single amplifier
09/06/2005US6940435 Method and system for adjusting the step clock of a delta-sigma transformer and/or switched capacitor filter
09/06/2005US6940434 Methods and systems for digital dither
09/01/2005WO2005079240A2 Switching power amplifier using a frequency translating delta sigma modulator
09/01/2005WO2005048456B1 Multi-level pulse width modulation in digital system
09/01/2005US20050191980 Method and apparatus for complex cascade sigma-delta modulation and single-sideband analog-to-digital conversion
09/01/2005US20050190865 Time encoding and decoding of a signal
09/01/2005US20050190093 Control unit having a signal converter
09/01/2005US20050190092 Analog-to-Digital Converter Having Parametric Configuirablity
09/01/2005US20050190091 Bandpass delta-sigma analog-to-digital converters
08/2005
08/31/2005EP1569345A1 Bandpass delta-sigma analog-to-digital converters
08/31/2005EP1568139A2 Data converters with digitally filtered pulse width modulation output stages and methods and systems using the same
08/31/2005EP1568125A1 Pulse width-modulated noise shaper
08/31/2005CN1661923A Time continuous sigma-delta-analog-digital-converter
08/31/2005CN1661921A Delta/Sigma frequency discriminator
08/31/2005CN1217337C Digital signal error compensation device and method
08/30/2005US6937176 Ultrasonic signal acquisition in the digital beamformer
08/30/2005US6937175 Amplifier linearization using delta-sigma predistortion
08/25/2005WO2005078936A1 Method for the characterisation of and for the automatic correction of linear errors in analog/digital converters
08/25/2005US20050185475 Digital to analog converters
08/25/2005US20050184901 Delta/sigma frequency discriminator
08/25/2005US20050184895 Multi-bit ADC with sigma-delta modulation
08/25/2005DE102004005793A1 Control appliance for signal converter e.g. for motor vehicles or aircraft, has digital converter part implemented by configurable logic circuits provided on chip or microcomputer
08/24/2005EP1540827A4 Noise shaping circuits and methods with feedback steering overload compensation and systems using the same
08/24/2005EP1356593B1 Arrangement for compensating a propagation delay difference arising through emulation of a high frequency signal
08/23/2005US6934324 Zero value-detecting circuit
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