| Patents for H03M 3 - Conversion of analogue values to or from differential modulation (7,070) |
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| 06/22/1994 | EP0602718A2 Analog-to-digital converter for converting a multitude of analog input signals into digital output signals by means of one sigma-delta modulator |
| 06/22/1994 | CN1088376A 多模式信号处理 Multi-mode signal processing |
| 06/21/1994 | US5323158 Switched capacitor one-bit digital-to-analog converter |
| 06/21/1994 | US5323157 Sigma-delta digital-to-analog converter with reduced noise |
| 06/21/1994 | US5323156 Delta-sigma analog-to-digital converter |
| 06/21/1994 | US5323154 Data compressing and expanding apparatus |
| 06/15/1994 | EP0601201A1 Waveform a/d converter and d/a converter |
| 06/09/1994 | DE4240423A1 Over-sampling A=D converter with digital LPF - has individual decision thresholds of each conversion block measured and stored with increased bit width for each specimen |
| 06/01/1994 | EP0599124A2 Method for determining prediction values in a DPCM predictive coding, as well as predictor and application |
| 06/01/1994 | EP0398981B1 Arrangement for a sigma delta converter for bandpass signals |
| 06/01/1994 | DE4318728C1 Chopper stabilised sigma-delta analogue=to=digital converter - has chopper-sigma-delta converter which receives chopped analogue signal from time discrete multiplier |
| 05/31/1994 | US5317529 Analog-to-digital converting apparatus |
| 05/18/1994 | EP0597523A1 Digital-to-analog converter |
| 05/18/1994 | EP0597123A1 D/a converter and a/d converter |
| 05/17/1994 | US5313205 Method for varying the interpolation ratio of a digital oversampling digital-to-analog converter system and apparatus therefor |
| 05/11/1994 | WO1994010779A1 Multi-mode signal processing |
| 05/11/1994 | EP0596662A2 Noise shaping circuit and noise shaping method |
| 05/10/1994 | US5311181 Digital noise shaper circuit |
| 05/04/1994 | EP0595781A2 Multi-mode signal processing |
| 04/19/1994 | US5305004 Digital to analog converter for sigma delta modulator |
| 03/31/1994 | WO1993019532A3 Compensating digital-analog converter with resolution-enhancing noise filter |
| 03/29/1994 | US5298900 Sigma-delta modulator |
| 03/29/1994 | US5298899 PCM encoder and decoder using exkrema |
| 03/16/1994 | EP0586603A1 Digital-to-analog converter-preamplifier apparatus |
| 03/09/1994 | EP0586021A1 Digital noise shaper circuit |
| 03/09/1994 | EP0375551B1 A speech coding/decoding system |
| 03/08/1994 | US5293169 Switched capacitor circuit for precision resistance |
| 03/03/1994 | WO1994004981A1 A bandpass sigma delta converter suitable for multiple protocols |
| 03/02/1994 | EP0584847A1 Method for digitally coding a composite signal and system therefor |
| 03/01/1994 | US5291284 Predictive coding and decoding with error drift reduction |
| 02/23/1994 | EP0583490A1 Procedure to process an electrical signal, especially a signal derived from the heart |
| 02/22/1994 | US5289549 B-adaptive adpcm image data compressor |
| 02/22/1994 | US5289548 Compression and reconstruction of radiological images |
| 02/15/1994 | US5287107 Optical isolation amplifier with sigma-delta modulation |
| 02/15/1994 | US5287106 Circuit for PCM conversion of an analog signal, with improvement in gain-tracking |
| 02/01/1994 | US5283578 Multistage bandpass Δ Σ modulators and analog-to-digital converters |
| 01/12/1994 | EP0577902A1 Decimation filter for a sigma-delta converter and A/D converter using the same |
| 01/11/1994 | US5278559 Noise shaping circuit having plural feedback coefficient multipliers |
| 01/05/1994 | EP0577363A1 Compression and reconstruction of radiological images |
| 01/04/1994 | US5276764 Method and device for compressing and expanding an analog signal |
| 12/28/1993 | US5274375 Delta-sigma modulator for an analog-to-digital converter with low thermal noise performance |
| 12/28/1993 | US5274374 Analog-to-digital converter having multi-bit cascaded sigma-delta loops with delaying intergrators |
| 12/23/1993 | WO1993026093A1 Waveform a/d converter and d/a converter |
| 12/22/1993 | EP0575071A2 A/D converter |
| 12/15/1993 | EP0574250A2 1-Bit D/A converter |
| 12/15/1993 | EP0573472A1 Analogue and digital convertors |
| 12/15/1993 | EP0573409A1 Interpolative analog/digital converter for band-pass signals. |
| 12/15/1993 | EP0559732A4 Digital data converter |
| 12/09/1993 | WO1993025006A1 D/a converter and a/d converter |
| 12/08/1993 | EP0573156A1 Optical isolation amplifier with sigma-delta modulation |
| 12/07/1993 | US5268688 Linear signal reconstruction system and method |
| 11/30/1993 | US5266952 Feed forward predictive analog-to-digital converter |
| 11/30/1993 | US5266908 Multiple clock signal generator apparatus |
| 11/25/1993 | WO1993023927A1 Method and apparatus for multiplexed oversampled analog to digital modulation |
| 11/24/1993 | EP0571075A2 Analog to digital converter with autoranging offset |
| 11/18/1993 | EP0569989A2 Linear signal reconstruction system and method |
| 10/28/1993 | WO1993021691A1 Analogue-to-digital converters |
| 10/26/1993 | US5257026 Method and apparatus for calibrating a multi-bit delta-sigma modular |
| 10/13/1993 | EP0565126A1 Stabilized noise shaper of a small scale having a suppressed quantization noise in high frequency region without deteriorating S/N ratio |
| 10/12/1993 | US5252973 Apparatus for digital-to-analogue conversion |
| 09/30/1993 | WO1993019532A2 Compensating digital-analog converter with resolution-enhancing noise filter |
| 09/28/1993 | US5248972 Delta-sigma analog-to-digital converter with overload dependent modulator order |
| 09/28/1993 | US5248971 Method and apparatus for multiplexed oversampled analog to digital modulation |
| 09/28/1993 | US5248970 Offset calibration of a dac using a calibrated adc |
| 09/16/1993 | DE4208232A1 Kompensierender digital-analog-wandler mit aufloesungserhoehender rauschfilterung Canceling digital-to-analog converter with noise filtering aufloesungserhoehender |
| 09/15/1993 | EP0559944A1 Sigma-Delta-modulator |
| 09/15/1993 | EP0559732A1 Digital data converter. |
| 09/14/1993 | US5245647 Method and device for synchronizing on an outside event the sampling of measuring signals through a digitizing assembly of the oversampling type |
| 09/14/1993 | US5245345 Digital-to-analog converter with delta-sigma modulation |
| 09/14/1993 | US5245344 High order switched-capacitor filter with dac input |
| 09/14/1993 | US5245343 Enhanced accuracy delta-sigma A/D converter |
| 09/08/1993 | EP0559377A2 Noise shaping circuit |
| 09/08/1993 | EP0559367A1 Pseudo multi-bit sigma-delta analog-to-digital converter |
| 09/07/1993 | US5243346 Digital-to-analog converting device using decoders and parallel-to-serial converters |
| 09/07/1993 | US5243345 Sigma-delta modulator having a plural order loop filter with successive filter sections of successively smaller signal excursion range |
| 09/07/1993 | US5243344 Digital-to-analog converter--preamplifier apparatus |
| 08/31/1993 | US5241310 Wide dynamic range delta sigma analog-to-digital converter with precise gain tracking |
| 08/24/1993 | US5239210 Low distortion unity gain amplifier for dac |
| 08/11/1993 | EP0554701A1 One-bit sigma-delta modulator with improved signal stability |
| 08/05/1993 | WO1993015557A1 Method for cascading sigma-delta modulators and a sigma-delta modulator system |
| 08/03/1993 | CA1321025C Speech signal coding/decoding system |
| 07/27/1993 | US5231395 Sigma-delta digital-to-analog converter with reduced distortion |
| 07/21/1993 | EP0551690A1 Multiplexed sigma-delta a/d converter |
| 07/20/1993 | US5230060 Speech coder and decoder for adaptive delta modulation coding system |
| 07/13/1993 | US5228059 Differential code transmission system |
| 07/13/1993 | US5227795 Over-sampling analog-to-digital converter using a current switching circuit as a local digital-to-analog converter |
| 07/06/1993 | US5226001 Plural-channel decimation filter, as for sigma-delta analog-to-digital converters |
| 07/06/1993 | US5225835 Sigma delta type digital/analog converter system |
| 06/23/1993 | EP0548046A2 Musical tone generating apparatus |
| 06/23/1993 | EP0548045A2 Musical tone generating apparatus |
| 06/23/1993 | EP0547826A1 B-adaptive ADPCM image data compressor |
| 06/16/1993 | EP0546920A1 Method and circuit for noise shaping |
| 06/15/1993 | US5220326 Digital-to-analog converter with improved performance and method therefor |
| 05/26/1993 | EP0543618A2 Analogue-to-digital converter |
| 05/25/1993 | US5214431 Delta sigma modulator |
| 05/19/1993 | EP0541878A1 Delta sigma analog to digital converter |
| 05/12/1993 | EP0540763A1 Method and apparatus for producing pulses |
| 05/04/1993 | US5208597 Compensated capacitors for switched capacitor input of an analog-to-digital converter |
| 05/04/1993 | US5208595 Digitally controlled adaptive slew rate delta modulator |
| 05/04/1993 | US5208594 Signal processor that uses a delta-sigma modulation |