| Patents for H03M 3 - Conversion of analogue values to or from differential modulation (7,070) |
|---|
| 02/06/2002 | EP1178612A2 Continuous time delta-sigma modulator |
| 02/06/2002 | EP1177634A1 Sigma-delta analog/digital converter array |
| 02/06/2002 | EP1177633A1 Nested modulator arrangement |
| 02/05/2002 | US6344812 Delta sigma digital-to-analog converter |
| 02/05/2002 | US6344811 Power supply compensation for noise shaped, digital amplifiers |
| 01/31/2002 | WO2002009292A2 Adaptive sigma-delta modulation with improved dynamic range |
| 01/31/2002 | US20020011945 Sigma-delta modulator with an adjustable feedback factor |
| 01/30/2002 | EP1176776A2 Data communication over parallel analogue links |
| 01/24/2002 | WO2002007321A1 Digital signal encoding apparatus and method, digital signal decoding apparatus and method, and digital signal transmission system |
| 01/24/2002 | US20020010942 Application of digital processing scheme for enhanced cable television network performance |
| 01/24/2002 | US20020008649 Selecting circuit, digital/analog converter and analog/digital converter |
| 01/23/2002 | EP1173738A1 Digital phase sensitive rectification of ac driven transducer signals |
| 01/23/2002 | CN1332910A Circuit for multi-standard communications terminal |
| 01/23/2002 | CN1332904A Integrated audio mixer |
| 01/23/2002 | CN1332841A Device and method for ultrasonic measurement of fluid flow rate comprising sigma-delta band pass analog-to-digital converter |
| 01/22/2002 | US6340945 Analog/digital converter |
| 01/22/2002 | US6340940 Digital to analog conversion circuits and methods utilizing single-bit delta-SIGMA modulators and multiple-bit digital to analog converters |
| 01/17/2002 | WO2002005432A2 Sigma-delta modulator with an adjustable feedback factor |
| 01/17/2002 | DE10031538A1 Digital-analog converter, suitable especially for mobile radio base stations, has D-Type flip flop and modulator multiplying digital input signal by clock signal |
| 01/16/2002 | EP1172936A1 Digital to analogue converter comprising a third order sigma delta modulator |
| 01/16/2002 | EP1171956A1 Hybrid low-pass sigma-delta modulator |
| 01/15/2002 | US6339621 One bit digital quadrature vector modulator |
| 01/10/2002 | WO2002003747A2 A/d converter with integrated biasing for a microphone |
| 01/10/2002 | WO2001003303A3 Method and apparatus for efficient mixed signal processing in a digital amplifier |
| 01/10/2002 | US20020003844 Circuit configuration for a multistandard communications terminal |
| 01/10/2002 | US20020003485 Method of performing A/D conversion, and an A/D converter |
| 01/08/2002 | US6337647 Digital-analog current converter |
| 01/08/2002 | US6337645 Filter for digital-to-analog converters |
| 01/08/2002 | US6337643 Method and device for generating a random signal and digital-to-analog converting systems using same |
| 01/03/2002 | WO2002001724A2 Digital-analog converter |
| 01/02/2002 | EP1168641A2 A multi-carrier receiver including an analog-to-digital converter for a wireless telecommunication system |
| 01/02/2002 | EP1168640A2 Architecture for multi-carrier receiver |
| 01/02/2002 | EP1168637A2 A receiver including frequency down-converter and analog-to-digital converter for a wireless telecommunication system |
| 01/02/2002 | EP1168631A2 Method and apparatus for improving S/N ratio in digital-to-analog conversion of pulse density modulated (PDM) signal |
| 01/02/2002 | CN1329776A Analog-digital converter |
| 12/20/2001 | WO2001097384A2 Real time correction of a digital pwm amplifier |
| 12/20/2001 | US20010052868 D/A converter |
| 12/19/2001 | EP1164707A2 Attentuating undesired frequencies while sampling a communication signal |
| 12/19/2001 | EP1164705A1 Digital/analog converter |
| 12/19/2001 | EP1164704A1 Oversampling circuit and digital/analog converter |
| 12/19/2001 | EP1164703A1 Digital/analog converter |
| 12/19/2001 | EP1164702A2 Method of performing A/D conversion, and an A/D converter |
| 12/19/2001 | EP1163721A1 Filter for digital to analog converters |
| 12/19/2001 | EP1163494A1 Device and method for ultrasonic measurement of a fluid flow rate comprising a sigma-delta band pass analog-to-digital converter |
| 12/18/2001 | US6331834 Wideband data converter with adaptive segment shuffling |
| 12/18/2001 | US6331833 Highly linear sigma-delta modulator having graceful degradation of signal-to-noise ratio in overload condition |
| 12/13/2001 | US20010050626 Signal clipping circuit for switched capacitor sigma delta analog to digital converters |
| 12/12/2001 | EP1162749A2 Method and apparatus for digital-to-analog converting a signal modulated in the frequency domain |
| 12/12/2001 | EP1161794A1 Power supply compensation for noise shaped, digital amplifiers |
| 12/11/2001 | US6329939 Method and apparatus for minimizing mismatch in a complex filter |
| 12/06/2001 | WO2001093430A1 A front-end receiver sigma-delta modulator |
| 12/06/2001 | WO2001039377A3 Finite impulse response digital to analog converter with offset compensation |
| 12/06/2001 | US20010048384 Analog-to-digital converter |
| 12/06/2001 | DE10027164A1 Circuit for converting digital electrical signals into continuous acoustic signals using digital amplifiers driving electroacoustic transducers with low-pass characteristics |
| 12/05/2001 | CN1325565A Circuit Configuration for quantisation of digital signals and for filtering quantisation noise |
| 12/04/2001 | US6326912 Analog-to-digital conversion using a multi-bit analog delta-sigma modulator combined with a one-bit digital delta-sigma modulator |
| 12/04/2001 | US6326911 Method and apparatus for dithering idle channel tones in delta-sigma analog-to-digital converters |
| 11/29/2001 | WO2001050611A3 Delta-sigma modulator for fractional-n frequency synthesis |
| 11/28/2001 | EP1158663A2 Digital switching amplifier |
| 11/28/2001 | EP1157494A1 Frequency-shaped pseudo-random chopper stabilization circuit and method for delta-sigma modulator |
| 11/28/2001 | EP1157471A1 Methods and apparatus for correction of higher order delta sigma convertors |
| 11/28/2001 | CN1324194A Attenuation of non-needed frequency when sampling communication signals |
| 11/28/2001 | CN1324144A Selection circuit, D/A converter and A/D converter |
| 11/27/2001 | US6323801 Bandgap reference circuit for charge balance circuits |
| 11/27/2001 | US6323796 Digital isolation system with ADC offset calibration |
| 11/27/2001 | US6323795 Electronic digital-to-analog converter circuit for a baseband transmission system |
| 11/27/2001 | US6323794 ΔΣ modulator, DA converter and AD converter |
| 11/22/2001 | US20010043153 Data acquisition system using delta-sigma analog-to-digital signal converters |
| 11/22/2001 | US20010043152 Digital switching amplifier |
| 11/21/2001 | EP1156586A1 Pipelined analogue-to-digital converter with noise-shaping |
| 11/21/2001 | CN1075283C Gradient drift and offset compensation in zero-medium frequency receivers |
| 11/20/2001 | US6321075 Hardware-efficient transceiver with delta-sigma digital-to-analog converter |
| 11/20/2001 | US6320529 A/D conversion apparatus and a radio apparatus |
| 11/20/2001 | US6320526 Sigma-delta analog/digital converter with adaptive dither |
| 11/15/2001 | US20010041984 Data compression and expansion of an n-level information signal |
| 11/15/2001 | US20010040927 Adaptive differential pulse code modulation system and method utilizing whitening filter for updating of predictor coefficients |
| 11/15/2001 | US20010040521 Pulse width modulation for low power high efficiency codecs |
| 11/14/2001 | EP1153483A1 Radio receiver |
| 11/14/2001 | CN1322062A Sigma delta type analog-to-digital converter |
| 11/08/2001 | US20010038350 System of DAC correction for a delta sigma modulator |
| 11/07/2001 | CN1074641C Design method and device for digital sounder |
| 11/06/2001 | US6313775 Delta-sigma modulator with two-step quantization, and method for using two-step quantization in delta-sigma modulation |
| 11/06/2001 | US6313774 Delta-sigma analog-to-digital converter, and method |
| 11/01/2001 | US20010035835 Delta-sigma modulator for fractional-N frequency synthesis |
| 10/31/2001 | EP1149474A1 Calibration and compensation of delta sigma adc's and dac's by correlating noise signals |
| 10/31/2001 | EP1149298A1 Automatic test equipment using sigma delta modulation to create reference levels |
| 10/25/2001 | WO2001079990A1 Mixed signal processing unit with improved distortion and noise characteristics |
| 10/25/2001 | WO2001011787A3 Sigma-delta a/d converter |
| 10/25/2001 | US20010033241 Current-to-voltage converter with controllable gain, and signal processing circuit comprising such a converter |
| 10/25/2001 | US20010033240 Delta sigma analog-to-digital converter |
| 10/24/2001 | EP1147609A1 Method and apparatus for eliminating clock jitter in continuous-time delta-sigma analog-to-digital converters |
| 10/24/2001 | EP0823146B1 Reduced complexity signal converter |
| 10/24/2001 | EP0763278B1 Quadrature signal conversion device |
| 10/24/2001 | CN1319276A Variable order SIGMA-DELTA modulator |
| 10/18/2001 | US20010030621 delta sigma Type A/D converter |
| 10/17/2001 | EP1146648A2 Delta sigma analog-to-digital converter |
| 10/17/2001 | EP1145449A2 Hardware-efficient transceiver with delta-sigma digital-to-analog converter |
| 10/17/2001 | EP1145443A2 1bit digital-analog converter circuit |
| 10/16/2001 | US6304608 Multibit sigma-delta converters employing dynamic element matching with reduced baseband tones |
| 10/16/2001 | US6304200 Digital/analog conversion apparatus and reproduction apparatus |