Patents
Patents for H03M 3 - Conversion of analogue values to or from differential modulation (7,070)
01/2012
01/25/2012EP2409401A1 Digital filtering in a class d amplifier system to reduce noise fold over
01/25/2012CN102334294A Continuous-time sigma-delta modulator with multiple feedback paths having independent delays
01/25/2012CN102332923A Sigma-delta modulator in analog to digital converter
01/25/2012CN101667834B Dynamic element matching method and continuous-time sigma-delta modulator using the same
01/24/2012US8102292 Analog-to-digital converter (ADC) having a successive-approximation register digital to-analog converter (SARDAC)
01/24/2012US8102291 Sigma delta modulator and quantizer and quantization method thereof
01/24/2012US8102290 Sigma-delta modulator
01/19/2012WO2012007328A1 Delta-sigma analog-to-digital converter and method for operating same
01/19/2012DE102010031290A1 Switching device i.e. multi-stage delta-sigma converter device, for analog to digital conversion, has operational transconductance amplifier commonly used in integrator circuits that are clocked in different clock phases
01/18/2012EP2408113A1 Delta-sigma analog-to-digital converter and method for operating the same.
01/18/2012CN102324941A Low-power-consumption two-step feedforward adder circuit
01/17/2012CA2502451C Mixed technology mems/bicmos lc bandpass sigma-delta for direct rf sampling
01/12/2012WO2012005777A1 2-phase gain calibration and scaling scheme for switched capacitor sigma-delta modulator using a chopper voltage reference
01/12/2012US20120010522 Input converter for an eeg monitoring system, signal conversion method and monitoring system
01/12/2012US20120007760 Input converter for a hearing aid and signal conversion method
01/12/2012DE102011004930A1 System, das eine Rückkopplungsschaltung mit digitaler Zerhackungsschaltung umfasst A system comprising a feedback circuit with digital Zerhackungsschaltung
01/12/2012DE102005057768B4 Zeitkontinuierlicher Delta-Sigma-Analog-Digital-Wandler A continuous-time delta-sigma analog-to-digital converter
01/11/2012EP2405580A1 Complex bandpass delta sigma ad modulator and digital radio receiver
01/11/2012CN1941675B Transmitting and receiving device and transmitting device and receiving device
01/11/2012CN1852028B Multibit delta sigma modulation DA converter
01/11/2012CN101427469B Delta sigma modulators with comparator offset noise conversion
01/11/2012CN101350622B Quantizer circuit for DEM algorithm and implementing method
01/10/2012US8094051 Sigma-delta-based analog-to-digital converter
01/05/2012WO2012001019A1 Sigma-delta adc with test circuitry
01/05/2012US20120002093 Correlated double sampling circuit and image sensor including the same
01/05/2012US20120001782 Delta Sigma ADC
01/04/2012EP2401816A2 Continuous-time sigma-delta modulator with multiple feedback paths having independent delays
01/03/2012US8089382 Sampling/quantization converters
12/2011
12/29/2011US20110316731 Method and device for phase and/or pulse-width modulation
12/29/2011US20110316729 Complex bandpass deltasigmaad modulator and digital radio receiver
12/27/2011US8085178 Multiplying-adding return to zero digital to analog converter circuit and method
12/22/2011WO2011159201A1 Local cvsd decoder and methods for the use thereof
12/21/2011EP2398148A1 Rf signal generation device with configurable sigma-delta modulator and pulse-width modulator for output frequency band selection, and associated methods
12/21/2011CN102292916A 面积高效的动态元件匹配系统和方法 Area-efficient dynamic element matching system and method
12/21/2011CN102291150A 一种sigma-delta调制器 One kind of sigma-delta modulator
12/20/2011US8081770 Pattern detection circuitry
12/20/2011US8081098 Integrator, delta-sigma modulator, analog-to-digital converter and applications thereof
12/15/2011US20110304491 Digital feedforward sigma-delta modulator in analog-to-digital converter and modulation method thereof
12/14/2011EP2229734B1 A multi-bit sigma-delta modulator with reduced number of bits in feedback path
12/14/2011CN102282912A 具有精确电流控制的led照明系统 Have led lighting system precise current control
12/14/2011CN102282769A △-∑ad转换电路以及电池组 △ -Σad conversion circuit and battery pack
12/14/2011CN102282767A 包括用于控制频率源的频率生成电路的集成电路 Comprises an integrated circuit for controlling the frequency source frequency generating circuit
12/13/2011US8077066 ΔΣ modulator
12/08/2011WO2011150732A1 Modulator and design method thereof
12/08/2011DE102010039272B3 Kapazitätsmessschaltung, Sensorsystem und Verfahren zum Messen einer Kapazität unter Verwendung eines sinusförmigen Spannungssignals Capacitance measuring circuit, sensor system and method for measuring a capacitance using a sinusoidal voltage signal
12/07/2011EP1604458B1 Mixed technology mems/bicmos lc bandpass sigma-delta for direct rf sampling
12/07/2011CN102273079A 积分器电路及具备该积分器电路的δσ调制器 Integrator circuit and the modulator includes δσ integrator circuit
12/07/2011CN102270991A 二阶分时复用Delta-Sigma调制器 Second-order time-multiplexed Delta-Sigma Modulator
12/07/2011CN102270990A 一种调制器及其设计方法 A modulation method and its design
12/07/2011CN101427471B 使用模拟-数字δ-∑调制器的信号处理系统及方法 Using an analog - digital δ-Σ modulator signal processing system and method
12/07/2011CN101231843B 声音再生装置和声音再生方法 Sound reproducing apparatus and method for sound reproduction
12/06/2011US8072363 System and method for bandpass sigma-delta modulation
12/06/2011US8072362 Modulator with loop-delay compensation
12/01/2011WO2011149131A1 Sigma-delta structure for a digital high-frequency transmitter
12/01/2011WO2011148605A1 Delta-sigma a/d converter
11/2011
11/30/2011EP2391014A1 Selection device
11/30/2011CN1956341B 连续时间delta-sigma调制器的背景校正电路和方法 Continuous time delta-sigma modulator background correction circuit and method
11/24/2011US20110285566 Digital-to-analog converter and digital-to-analog converting device
11/24/2011US20110285565 Parallel mash delta sigma modulator
11/23/2011CN1934788B Switched capacitor signal scaling circuit
11/22/2011US8063806 Apparatus comprising frequency selective circuit and method
11/16/2011CN102244517A Shared exchange capacitance type integrator and operation method thereof as well as sigma-delta modulator
11/09/2011CN101615893B Amplifier using delta-sigma modulation and method for adjusting errors of same
11/08/2011US8054089 Capacitance measuring circuit
11/03/2011US20110270552 Delta-sigma ad converter circuit and battery pack
11/03/2011US20110267210 Shaping Inter-Symbol-Interference in Sigma Delta Converter
11/01/2011US8049651 ΔΣ modulation circuit and system
10/2011
10/27/2011WO2011131202A1 A delta sigma modulator
10/26/2011EP2381578A1 A sigma delta converter
10/26/2011EP2064621B1 A random number generator
10/25/2011US8044836 Continuous time sigma-delta A/D converter and electrical system comprising the A/D converter
10/20/2011US20110255228 Balance signal output type sensor
10/20/2011US20110254718 Integrator and delta-sigma modulator including the same
10/19/2011EP2243268B1 Radiofrequency emission system
10/19/2011CN1661921B Delta/Sigma frequency discriminator
10/18/2011US8040976 Digital receiver and method
10/18/2011US8040266 Programmable sigma-delta analog-to-digital converter
10/18/2011US8040265 Down-converter and up-converter for time-encoded signals
10/13/2011WO2011010314A3 Ultra-high-speed photonic-enabled adc based on multi-phase interferometry
10/13/2011US20110248875 Second-order delta-sigma analog-to-digital converter
10/12/2011CN101540609B Method and apparatus for delta-sigma digital to analog conversion
10/12/2011CN101379709B Sigma-delta modulation with offset
10/11/2011CA2476967C A system and method for adaptive sigma-delta modulation
10/06/2011US20110241919 System and method for generating shaped noise
10/04/2011US8031096 High resolution delta-sigma digital-to-analog converter
10/04/2011US8031095 Signal conversion using finite impulse response feedback
10/04/2011US8031094 Touch controller with improved analog front end
09/2011
09/29/2011US20110234437 Sigma delta modulator
09/28/2011CN1943115B Methods and apparatus for reducing thermal noise
09/28/2011CN1938954B Method of reducing inter-symbol interference, a sigma-delta converter for performing this method
09/28/2011CN102201814A Method and system for matching dynamic elements
09/22/2011WO2011114300A1 Control of a microphone
09/22/2011US20110228754 Packetized audio data operations in a wireless local area network device
09/22/2011US20110227772 Method and Apparatus for Analog to Digital Conversion of Small Signals in the Presence of a Large DC Offset
09/21/2011EP2367366A1 Control of a microphone
09/21/2011EP2245742B1 Adaptive high-order digital-to-analog conversion
09/21/2011CN102197600A Method, device, computer program and computer program product for determining a representation of a signal
09/15/2011US20110221618 Continuous-time delta-sigma adc with compact structure
09/14/2011EP2365634A1 Pulse density modulation method and apparatus
09/14/2011CN102187582A Multi-level feed-back digital-to-analog converter using a chopper voltage reference for a switched capacitor sigma-delta analog-to-digital converter
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