| Patents for H03M 3 - Conversion of analogue values to or from differential modulation (7,070) |
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| 05/14/2002 | US6388601 Delay compensation for analog-to-digital converter in sigma-delta modulators |
| 05/14/2002 | US6388598 D/A converter |
| 05/14/2002 | US6388597 Δ-Σ modulator and Δ-Σ A/D converter |
| 05/10/2002 | WO2002037686A2 Method and apparatus for controlling stages of a multi-stage circuit |
| 05/10/2002 | WO2001010034A9 Bandpass modulator |
| 05/09/2002 | US20020053986 Methods and systems for high speed quantizers |
| 05/08/2002 | EP0906659A4 Oversampled, noise-shaping, mixed-signal processor |
| 05/07/2002 | US6385588 Data compression and expansion of an N-level information signal |
| 05/07/2002 | CA2212146C A delta-sigma modulator having dynamically tunable continuous time gm-c architecture |
| 05/02/2002 | US20020051497 Method and quadrature device for compensating mismatch in parallel paths by switching signals therein |
| 05/02/2002 | EP1202461A1 A method of improving the signal/noise ratio of a sigma-delta modulator and a circuit which uses the method |
| 05/02/2002 | EP1201026A1 Break-before-make distortion compensation for a digital amplifier |
| 04/30/2002 | US6380874 System and method for self-calibrating a multi-bit delta-sigma analog to digital converter using dynamic element matching |
| 04/30/2002 | CA2362104A1 High efficiency power amplifier systems and methods |
| 04/25/2002 | US20020048967 Fabrication process of a semiconductor integrated circuit device |
| 04/24/2002 | EP1198889A1 Clock signal generator |
| 04/23/2002 | US6377193 System for converting between non-logarithmic values and logarithmic values |
| 04/17/2002 | EP1197001A1 Current-to-voltage converter with controllable gain, and signal processing circuit comprising such converter |
| 04/17/2002 | CN1345483A Hybrid low-pass sigma-delta moduator |
| 04/16/2002 | US6373418 Nyquist response restoring delta-sigma modulator based analog to digital and digital to analog conversion |
| 04/16/2002 | US6373417 Digital to analog converter using level and timing control signals to cancel noise |
| 04/16/2002 | US6373416 Lookahead sigma-delta modulator |
| 04/16/2002 | US6373334 Real time correction of a digital PWM amplifier |
| 04/11/2002 | WO2002029425A1 Rf power measurement |
| 04/11/2002 | US20020041247 Residue-compensating A/D converter |
| 04/11/2002 | US20020041244 Digital-analog converter comprising a third order sigma delta modulator |
| 04/11/2002 | US20020041243 Noise shaper |
| 04/10/2002 | EP1195019A1 Direct conversion delta-sigma receiver |
| 04/10/2002 | CN1344479A High efficiency audio frequency transmission channel |
| 04/10/2002 | CN1344437A 1Bit-digital-analog converter circuit |
| 04/09/2002 | US6369745 Analog to digital switched capacitor converter using a delta sigma modulator having very low power, distortion and noise |
| 04/09/2002 | US6369735 Digital-to-analog converter with high dynamic range |
| 04/09/2002 | US6369733 Method and system for operating two or more dynamic element matching (DEM) components with different power supplies for a delta-sigma modulator of an analog-to-digital converter |
| 04/09/2002 | US6369731 Delta sigma D/A converter |
| 04/09/2002 | US6369730 Sigma-delta analog-to-digital converter |
| 04/09/2002 | US6369729 Common mode shift in downstream integrators of high order delta sigma modulators |
| 04/09/2002 | US6369728 Method and system for real-time processing of the recorded PCM data to get the desired full-scale range of values |
| 04/04/2002 | WO2002027953A1 Baseband front-end for multi standard receiver |
| 04/04/2002 | WO2002027944A2 Digital to analog converter employing sigma-delta loop and feedback dac model |
| 04/04/2002 | WO2002027919A2 Non-linear signal correction |
| 04/04/2002 | US20020039077 Subranging sigma delta modulator |
| 04/03/2002 | EP1193880A2 A subranging sigma delta modulator |
| 04/03/2002 | EP1193878A1 Frequency synthesizer and low-noise frequency synthesizing process |
| 04/03/2002 | EP1193876A1 Frequency synthesizer and low-noise frequency synthesizing process |
| 04/03/2002 | EP1192718A1 Method for compensating non-linearity of a sigma-delta analog-to-digital converter |
| 04/03/2002 | EP1192717A2 Method and apparatus for efficient mixed signal processing in a digital amplifier |
| 04/02/2002 | US6366881 Voice encoding method |
| 04/02/2002 | US6366228 Selecting circuit, digital/analog converter and analog/digital converter |
| 03/28/2002 | WO2002025817A1 Distortion reduction method and apparatus for linearization of digital pulse width modulation by efficient calculation |
| 03/28/2002 | US20020036578 Method and arrangement for synchronizing a sigma delta-modulator |
| 03/26/2002 | US6362769 Analogue-to-digital conversion using frequency-modulated input or intermediate values |
| 03/26/2002 | US6362765 D/A converter |
| 03/26/2002 | US6362763 Method and apparatus for oscillation recovery in a delta-sigma A/D converter |
| 03/26/2002 | US6362762 Multiple mode analog-to-digital converter employing a single quantizer |
| 03/26/2002 | US6362683 Break-before-make distortion compensation for a digital amplifier |
| 03/21/2002 | WO2002023734A2 Multi-sampling sigma-delta analog-to-digital converter |
| 03/21/2002 | WO2002023733A2 Sigma-delta digital-to-analog converter |
| 03/21/2002 | WO2002023732A2 Methods and systems for high speed quantizers |
| 03/21/2002 | WO2002023731A2 Methods and systems for digital dither |
| 03/21/2002 | WO2002023730A1 Method and apparatus for oscillation recovery in a delta-sigma a/d converter |
| 03/20/2002 | EP1188243A2 Finite impulse response digital to analog converter with offset compensation |
| 03/14/2002 | WO2002021698A1 Density-modulated dynamic dithering circuits and method for delta-sigma converter |
| 03/14/2002 | WO2002021526A1 Audio signal processing with adaptive noise-shaping modulation |
| 03/14/2002 | WO2002021525A1 Audio signal compression |
| 03/14/2002 | US20020030618 Method of re-establishing the stability of a sigma-delta modulator and a circuit for implementing the method |
| 03/14/2002 | US20020030617 Attenuating undesired frequencies while sampling a communication signal |
| 03/13/2002 | EP1187351A2 Wireless telecommunications multi-carrier receiver architecture |
| 03/13/2002 | EP1187334A1 Oversampling circuit and digital/analog converter |
| 03/13/2002 | EP1187333A1 Oversampling circuit and digital/analog converter |
| 03/13/2002 | EP1186104A1 Differential pulse code modulation system |
| 03/13/2002 | EP1164702A9 Method of performing A/D conversion, and an A/D converter |
| 03/13/2002 | EP1099311B1 Delay compensation for analog-to-digital converter in sigma-delta modulators |
| 03/13/2002 | EP1093687B1 Linearized multi-bit digital/analog converter and the use thereof in a multi-bit delta-sigma analog/digital converter |
| 03/13/2002 | CN1340247A Oversampling circuit and digital/analog converter |
| 03/13/2002 | CN1340246A Oversampling circuit and digital/analog converter |
| 03/13/2002 | CN1340245A Oversampling circuit and digital/analog converter |
| 03/13/2002 | CN1340244A Digital/analog converter |
| 03/12/2002 | US6356594 Data converter |
| 03/07/2002 | WO2002019533A2 Multi bit delta sigma modulator having linear output |
| 03/07/2002 | WO2001067591A3 Digital-to-analog interface circuit having adjustable time response |
| 03/06/2002 | EP1183841A1 Compensation of mismatch in quadrature devices |
| 03/06/2002 | EP1183646A1 Method and device for determining interpolated intermediate values of a sampled signal |
| 03/06/2002 | CN1339112A Automatic test equipment using sigma delta modulation to create reference levels |
| 02/28/2002 | WO2002017495A2 Multiple mode analog-to-digital converter employing a single quantizer |
| 02/28/2002 | WO2002017050A2 Noise-shaped digital frequency synthesis |
| 02/28/2002 | US20020026254 Storage and transmission of one-bit data |
| 02/28/2002 | US20020025010 Zero value-detecting circuit |
| 02/28/2002 | US20020024459 Pipelined analog-to-digital converter with noise shaping |
| 02/27/2002 | CN1338154A Hardware-efficient transceiver with Delta-Sigma digital-to-analog converter |
| 02/27/2002 | CN1338152A Cascade sigma-Delta modulator |
| 02/26/2002 | US6351229 Density-modulated dynamic dithering circuits and method for delta-sigma converter |
| 02/21/2002 | WO2002015407A2 Method and arrangement for synchronizing a σδ-modulator |
| 02/21/2002 | US20020021238 Delta-sigma modulatator for power amplification of audio signals |
| 02/20/2002 | CN1337094A Digital/analog converter |
| 02/14/2002 | WO2002013473A1 Apparatus for reducing dc offset in a receiver |
| 02/14/2002 | US20020019960 Device for improving voice signal in quality |
| 02/14/2002 | US20020018013 Method and apparatus for improving S/N ratio in digital-to-analog conversion of pulse density modulated (PDM) signal |
| 02/14/2002 | US20020018012 Method and apparatus for analog-to-digital converting signal modulated in frequency domain |
| 02/12/2002 | US6346898 Multilevel analog to digital data converter having dynamic element matching in a reference data path |
| 02/06/2002 | EP1178637A1 Apparatus for reducing DC offset in a direct conversion receiver |