| Patents for H03M 3 - Conversion of analogue values to or from differential modulation (7,070) |
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| 10/11/2001 | WO2001018972A3 Circuit arrangement for generating in-phase input signals for a 1-bit digital-analog converter |
| 10/10/2001 | EP1142144A1 Circuit for a multi-standard communications terminal |
| 10/10/2001 | EP1142127A1 Circuits, systems and methods for processing data in a one-bit format |
| 10/10/2001 | CN1317169A Digital reception with radio frequency sampling |
| 10/09/2001 | US6300891 D/A conversion apparatus |
| 10/09/2001 | US6300890 Delta-sigma modulator and AD converter |
| 10/09/2001 | US6300776 Method and device for discrete-time reactance measurement |
| 10/04/2001 | US20010026234 Digital-to analog-converting method and digital-to analog converter employing common weight generating elements |
| 10/04/2001 | EP1139571A1 Pulse width modulation D/A-converter |
| 10/04/2001 | EP1139570A2 Selecting circuit, digital/analog converter and analog/digital converter |
| 10/04/2001 | EP1138120A2 Analog-digital converter |
| 09/27/2001 | WO2001071922A2 Excess delay compensation in a delta sigma modulator analog-to-digital converter |
| 09/27/2001 | WO2001011785A3 Cascade sigma-delta modulator |
| 09/27/2001 | WO2001005037A3 Sigma-delta modulator |
| 09/27/2001 | US20010024870 Fabrication process of a semiconductor integrated circuit device |
| 09/26/2001 | EP1137190A1 DAC correction system for a delta-sigma modulator |
| 09/25/2001 | US6295015 Reference generator for demodulator calibration |
| 09/25/2001 | US6295014 System for processing one-bit audio signals |
| 09/20/2001 | WO2001069876A1 Compensation of mismatch in quadrature devices |
| 09/20/2001 | US20010022556 D/A converter |
| 09/20/2001 | US20010022555 Analog to digital switched capacitor converter using a delta sigma modulator having very low power, distortion and noise |
| 09/19/2001 | EP1134899A2 Digital-to-analog-converting method and digital-to-analog converter employing common weight generating elements |
| 09/19/2001 | EP0988704B1 Analogue-to-digital conversion using frequency-modulated input or intermediate values |
| 09/18/2001 | US6292124 Delta-sigma D/A converter |
| 09/18/2001 | US6292122 Digital-to-analog interface circuit having adjustable time response |
| 09/18/2001 | US6292121 Delta sigma-analog-to-digital converter |
| 09/13/2001 | WO2001067591A2 Digital-to-analog interface circuit having adjustable time response |
| 09/12/2001 | EP1133062A2 Delta sigma d/a converter |
| 09/12/2001 | EP1131887A1 Fir filter utilizing programmable shifter |
| 09/11/2001 | US6289306 Data processing of a bitstream signal |
| 09/07/2001 | WO2001065732A2 Application of digital processing scheme for enhanced cable television network performance |
| 09/07/2001 | CA2400150A1 Application of digital processing scheme for enhanced cable television network performance |
| 09/05/2001 | EP1130786A2 A digital signal processing device and a method and a delta-sigma modulator using the same method |
| 09/05/2001 | EP1130785A2 Signal clipping circuit for switched capacitor sigma delta analog to digital converters |
| 09/05/2001 | EP1130784A2 Delta Sigma type A/D converter |
| 09/05/2001 | EP1129523A1 Circuit configuration for quantisation of digital signals and for filtering quantisation noise |
| 09/04/2001 | US6285719 Digital phase sensitive rectification of AC driven transducer signals |
| 09/04/2001 | US6285304 Analog-to-digital converter circuit and control device for a gradient amplifier of a magnetic resonance imaging system |
| 08/30/2001 | WO2001063771A1 Sensor and sigma-delta converter |
| 08/30/2001 | WO2001063770A1 Analog-to-digital converter including two-wire interface circuit |
| 08/30/2001 | WO2001026416A3 High performance audio transmission channel |
| 08/28/2001 | US6282682 Automatic test equipment using sigma delta modulation to create reference levels |
| 08/28/2001 | US6281824 Digital to analog converter using constant current sources |
| 08/23/2001 | WO2001061865A1 Current-to-voltage converter with controllable gain, and signal processing circuit comprising such converter |
| 08/23/2001 | WO2001061864A1 Differential pulse code modulation system |
| 08/23/2001 | WO2000057558A3 1bit digital-analog converter circuit |
| 08/23/2001 | WO2000007301A3 Hardware-efficient transceiver with delta-sigma digital-to-analog converter |
| 08/23/2001 | US20010016012 Digital signal processing device and a method and a delta-sigma modulator using the same method |
| 08/23/2001 | EP1145449A3 Hardware-efficient transceiver with delta-sigma digital-to-analog converter |
| 08/23/2001 | EP1145443A3 1bit digital-analog converter circuit |
| 08/22/2001 | CN1309832A Pre-recorded sigma delta values for power amplifier control |
| 08/21/2001 | US6278750 Fully integrated architecture for improved sigma-delta modulator with automatic gain controller |
| 08/21/2001 | US6278394 Signal processing circuit and method of operation |
| 08/21/2001 | US6278392 Gain adjustable sigma delta modulator system |
| 08/16/2001 | WO2001060006A1 COMBINED TRANSMIT FILTER AND D-to-A CONVERTER |
| 08/16/2001 | WO2001059932A1 Method for converting an analogous signal into a digital signal |
| 08/16/2001 | WO2001059928A1 Balanced circuit arrangement |
| 08/16/2001 | US20010014594 Dual digital low IF complex receiver |
| 08/15/2001 | CN1308789A System for generating an accurate low-noise periodic signal |
| 08/14/2001 | US6275540 Selective call receiver having an apparatus for modifying an analog signal to a digital signal and method therefor |
| 08/14/2001 | US6275178 Variable capacitance voltage shifter and amplifier and a method for amplifying and shifting voltage |
| 08/14/2001 | US6275177 Sigma-delta modulator using a local nonlinear feedback loop technique |
| 08/07/2001 | US6272465 Monolithic PC audio circuit |
| 08/07/2001 | US6271782 Delta-sigma A/D converter |
| 08/07/2001 | US6271781 Nonlinear filter correction of multibit ΣΔ modulators |
| 08/07/2001 | US6271780 Gain ranging analog-to-digital converter with error correction |
| 08/01/2001 | EP1120915A1 Over-sampling a/d, d/a converter |
| 08/01/2001 | EP1120013A2 Integrated audio mixer |
| 07/31/2001 | US6269338 Data compression and expansion of an audio signal |
| 07/26/2001 | US20010009403 Hybrid low-pass sigma-delta modulator |
| 07/25/2001 | CN1069005C Comb filter with smaller number of delay elements and radio receiver transmitter having said filter |
| 07/18/2001 | EP1116333A2 Correction of nonlinear output distortion in a delta sigma dac |
| 07/18/2001 | EP1116332A1 Variable order sigma - delta modulator |
| 07/17/2001 | US6262616 Open loop supply independent digital/logic delay circuit |
| 07/12/2001 | WO2001050611A2 Delta-sigma modulator for fractional-n frequency synthesis |
| 07/12/2001 | WO2000065713A3 Sample rate converter |
| 07/11/2001 | EP1114511A1 Sample rate converter |
| 07/11/2001 | CN1068495C Differential coding and decoding method and related circuits |
| 07/10/2001 | US6259389 System for designing and testing a sigma-delta modulator using response surface techniques |
| 07/03/2001 | US6255977 Sigma-delta-d/a-converter |
| 07/03/2001 | US6255976 Low-frequency noise removing method and a related CMOS sensing circuit |
| 07/03/2001 | US6255975 Circuits and methods for noise filtering in 1-bit audio applications and systems using the same |
| 07/03/2001 | US6255974 Programmable dynamic range sigma delta A/D converter |
| 06/28/2001 | US20010005174 Method and apparatus for efficient mixed signal processing in a digital amplifier |
| 06/27/2001 | EP1111803A1 Dual mode with a single receiver circuit |
| 06/27/2001 | EP1110135A1 Method and device for generating a random signal and digital-to-analog converting systems using same |
| 06/26/2001 | US6252533 Data conversion device |
| 06/26/2001 | US6252531 Data acquisition system using delta-sigma analog-to-digital signal converters |
| 06/26/2001 | US6252530 D/A converter having mechanism for preventing analog signal distortion |
| 06/26/2001 | US6252528 System and method for variable gain coder-decoder |
| 06/21/2001 | WO2001045270A1 Digital/analog converter |
| 06/21/2001 | WO2001045269A1 Oversampling circuit and digital/analog converter |
| 06/21/2001 | WO2001045268A1 Oversampling circuit and digital/analog converter |
| 06/21/2001 | WO2001045267A1 Oversampling circuit and digital/analog converter |
| 06/21/2001 | WO2001045266A1 Digital/analog converter |
| 06/21/2001 | WO2001010033A3 Analog-to-digital converter for a signal in the gigahertz range, millimetric wave receivers and bandpass filter for millimetric waves |
| 06/20/2001 | CN1300467A Noise cancellation circuit and quadrature downconverter |
| 06/20/2001 | CN1300466A 转换器 Converters |
| 06/19/2001 | US6249238 Sigma-delta modulator and method for suppressing a quantization error in a sigma-delta modulator |
| 06/19/2001 | US6249237 System and method for bandpass shaping in an oversampling converter |