| Patents for H03M 3 - Conversion of analogue values to or from differential modulation (7,070) |
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| 04/07/2005 | WO2005031980A1 Accumulator for adaptive sigma-delta modulation |
| 04/07/2005 | US20050073453 System of multi-channel shared resistor-string digital-to-analog converters and method of the same |
| 04/07/2005 | US20050073451 Multiplexed-input-separated sigma-delta analog-to-digital converter design for pixel-level analog-to-digital conversion |
| 04/07/2005 | DE10341063A1 Vorwärtsverstärkende Filterschaltung Forward-enhancing filter circuit |
| 04/06/2005 | EP1520348A2 Circuit arrangement and method for sigma-delta conversion with reduced idle tones |
| 04/06/2005 | EP1021885A4 Digital phase discrimination based on frequency sampling |
| 04/06/2005 | CN1605159A Broadband sigma-delta modulator |
| 04/06/2005 | CN1605158A Sigma-delta converter with noise suppression |
| 04/06/2005 | CN1604482A Modulation method for modulator |
| 04/06/2005 | CN1604479A Digital soft switch in D/A converter and using method thereof |
| 04/06/2005 | CN1196267C 信号处理电路 The signal processing circuit |
| 04/05/2005 | US6876241 Circuit for generating from low voltage edges higher voltage pulses having precise amplitudes and durations |
| 04/05/2005 | CA2262511C Arrangements and methods for generating a radio frequency signal |
| 03/31/2005 | WO2005011122A3 Integrator reset mechanism |
| 03/31/2005 | US20050071123 Refining stochastic grid filter |
| 03/31/2005 | US20050068221 Ultrasonic signal acquisition in the digital beamformer |
| 03/31/2005 | US20050068213 Digital compensation of excess delay in continuous time sigma delta modulators |
| 03/31/2005 | US20050068212 Continuous time delta sigma adc with dithering |
| 03/31/2005 | US20050068206 Method for interpolating at least two position-dependent, periodic analog signals that are dephased relative each other |
| 03/30/2005 | EP1374411B1 Real time correction of a digital pwm amplifier |
| 03/29/2005 | US6873281 Interleaved digital correction for MASH delta-sigma ADC |
| 03/29/2005 | US6873280 Conversion employing delta-sigma modulation |
| 03/29/2005 | US6873277 Multi-phase measurement system with synchronized sigma delta converters |
| 03/29/2005 | US6873276 Delta-sigma modulators with improved noise performance |
| 03/29/2005 | US6873275 Digital signal conversion apparatus, digital signal conversion method, and computer-readable recording medium in which digital signal conversion program is recorded |
| 03/29/2005 | US6873274 Digital-to-analog converter with sampling frequency detector |
| 03/24/2005 | WO2005027350A1 Data converters with ternary pulse width modulation output stages and methods and systems using the same |
| 03/24/2005 | WO2005009072A3 Microphone comprising integral multi-level quantizer and single-bit conversion means |
| 03/24/2005 | US20050062630 Spectral shaping dynamic encoder for a dac |
| 03/24/2005 | US20050062628 Multi-phase measurement system with synchronized sigma delta converters |
| 03/24/2005 | US20050062627 Sigma-delta converter with noise suppression |
| 03/24/2005 | US20050062626 System and method for spectral shaping of dither signals |
| 03/23/2005 | EP1483834A4 Delta-sigma modulator with feed-forward path |
| 03/22/2005 | US6870494 System of multi-channel shared resistor-string digital-to-analog converters and method of the same |
| 03/22/2005 | US6869216 Digitizing temperature measurement system |
| 03/17/2005 | US20050057386 Digital-analog converter |
| 03/17/2005 | US20050057385 Low power, high SNR, high order delta sigma modulator stage having integrators with pipelined cross coupled input circuits |
| 03/17/2005 | US20050057384 Reconfigurable analog-to-digital converter |
| 03/17/2005 | US20050057383 Sigma-delta modulator using a passive filter |
| 03/17/2005 | US20050057382 Sigma-delta modulator with passive bandpass loop filter |
| 03/16/2005 | EP1046232B1 Noise cancellation circuit and quadrature downconverter |
| 03/16/2005 | CN1595810A Semi-conductor circuit arrangement |
| 03/15/2005 | US6867722 H-bridge common-mode noise reduction circuit |
| 03/15/2005 | US6867721 Spectral shaping dynamic encoder for a DAC |
| 03/15/2005 | US6867720 Beamformed ultrasonic imager with delta-sigma feedback control |
| 03/10/2005 | US20050052304 Data converters with ternary pulse width modulation output stages and methods and systems using the same |
| 03/10/2005 | US20050052300 Single loop feed-forward modulator with summing flash quantizer and multi-bit feedback |
| 03/10/2005 | US20050052299 Analogue-to-digital sigma-delta modulator with FIR filters |
| 03/10/2005 | US20050052226 Forward-amplifying filter circuit |
| 03/09/2005 | EP1513254A1 Filter enabling decimation of digital signals by a rational factor |
| 03/09/2005 | EP1512226A1 Sigma delta a/d converter with pseudo flash converter |
| 03/09/2005 | EP1400017A4 A multi-level quantizer with current mode dem switch matrices and separate dem decision logic for a multibit sigma delta modulator |
| 03/09/2005 | CN1593010A Incremental-delta analogue-to-digital conversion |
| 03/09/2005 | CN1593009A Low capacitance, low kickback noise input stage of a multi-level quantizer with dithering and multi-threshold generation for a multi-bit sigma-delta modulator |
| 03/09/2005 | CN1592102A Forward-amplifying filter circuit |
| 03/08/2005 | US6865230 Filter system with reduced switch thermal noise and a ΣΔ modulator using such a filter |
| 03/08/2005 | US6864822 Reconfigurable analog-to-digital converter |
| 03/08/2005 | US6864818 Programmable bandpass analog to digital converter based on error feedback architecture |
| 03/08/2005 | US6864817 Signaling dependent adaptive analog-to-digital converter (ADC) system and method of using same |
| 03/08/2005 | US6864815 Method and apparatus for efficient mixed signal processing in a digital amplifier |
| 03/02/2005 | EP1120013A4 Integrated audio mixer |
| 03/02/2005 | CN1589530A Method and apparatus for delta modulator and sigma delta modulator |
| 03/02/2005 | CN1588806A Quantizing noise shaping modulator and quantizing noise shaping method |
| 03/01/2005 | US6861968 Signal processing system with baseband noise modulation and noise filtering |
| 02/24/2005 | US20050040981 Modulation circuit including a feedback loop with an embedded mapper |
| 02/24/2005 | US20050040980 System and method for shuffling mapping sequences |
| 02/24/2005 | US20050040979 Computer program product for performing digital-to-analog conversion |
| 02/24/2005 | DE10335105A1 Sigma delta modulator e.g. for mobile communication, uses CCD as filter element |
| 02/23/2005 | EP1433259A4 Adaptive sigma-delta data converter for mobile terminals |
| 02/23/2005 | CN1586041A Signal processing device, signal processing method, delta-sigma modulation type fractional division PLL frequency synthesizer, radio communication device, delta-sigma modulation type D/A converter |
| 02/23/2005 | CN1586040A Sigma-delta modulation |
| 02/23/2005 | CN1190666C RF Power measurement |
| 02/17/2005 | WO2005015746A2 Variable coder apparatus for resonant power conversion and method |
| 02/17/2005 | US20050038847 System and method for stabilizing high order sigma delta modulators |
| 02/17/2005 | US20050035891 Digital-to-analog converter with level control |
| 02/16/2005 | EP1506618A1 Delta-sigma modulators with integral digital low - pass filtering |
| 02/16/2005 | EP1506617A1 Sigma-delta analog-to-digital converter and method |
| 02/16/2005 | CN1582534A Multi-bit sigma-delta analog to digital converter with a variable full scale |
| 02/16/2005 | CN1581703A Sigma-delta modulator having a clocked delay line |
| 02/15/2005 | US6857002 Integrated circuit with a mode control selecting settled and unsettled output from a filter |
| 02/15/2005 | US6856267 Method and system for a multi-rate analog finite impulse response filter |
| 02/15/2005 | US6856266 Multi-rate analog-to-digital converter |
| 02/10/2005 | US20050030212 Methods and systems for high speed quantizers |
| 02/10/2005 | US20050030211 Sigma-delta converter arrangement |
| 02/10/2005 | US20050030209 Signal processor and apparatus and method for testing same |
| 02/10/2005 | US20050030093 Method and apparatus for efficient mixed signal processing in a digital amplifier |
| 02/09/2005 | EP1505736A1 Digital-analog converter |
| 02/09/2005 | EP1504532A1 High precision analog to digital converter |
| 02/09/2005 | CN1578156A Cascade delta-sigma modulator |
| 02/09/2005 | CN1578155A Sigma-delta-converter |
| 02/08/2005 | US6853325 Pulse width modulation digital amplifier |
| 02/08/2005 | US6853321 Digital-to-analog converter |
| 02/03/2005 | WO2005011126A1 Noise-shaping device and method with improved lossless compression and good audio quality for high fidelity audio |
| 02/03/2005 | WO2005011122A2 Integrator reset mechanism |
| 02/03/2005 | US20050024248 Sigma-delta modulator having a clocked delay line |
| 02/03/2005 | US20050024119 Circuit for generating from low voltage edges higher voltage pulses having precise amplitudes and durations |
| 02/03/2005 | DE10331572A1 Sigma-Delta-Wandleranordnung Sigma-delta converter arrangement |
| 02/02/2005 | EP1502228A1 Operational amplifier integrator |
| 02/02/2005 | CN1575540A Commutation of sensorless direct-current motors |
| 01/27/2005 | WO2005009072A2 Microphone comprising integral multi-level quantizer and single-bit conversion means |