| Patents for H03M 3 - Conversion of analogue values to or from differential modulation (7,070) |
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| 06/16/2005 | US20050128111 Methods and systems for digital dither |
| 06/16/2005 | DE10340009B3 Calibration device for calibrating digital output signal of multibit delta-sigma converter has controller that alters bit weights in memory so correlation between output signal of converter and calibrated output signal is minimal |
| 06/15/2005 | EP1540827A1 Noise shaping circuits and methods with feedback steering overload compensation and systems using the same |
| 06/15/2005 | EP1540826A1 Delta-sigma modulation circuits and methods utilizing multiple noise attenuation bands and data converters using the same |
| 06/15/2005 | EP1540821A2 Circuit configuration for averaging |
| 06/15/2005 | EP1230600A4 Method and apparatus for producing signal processing circuits in the delta sigma domain |
| 06/14/2005 | US6907374 Self-calibrating sigma-delta analog-to-digital converter |
| 06/14/2005 | US6906655 Plural channel analog-to-digital converter, method and meter employing an input channel with a predetermined direct current bias |
| 06/09/2005 | WO2005053159A2 Clock pulse generator apparatus with reduced jitter clock phase |
| 06/09/2005 | WO2004088843A3 System and method for compensating for error in a sigma delta circuit |
| 06/09/2005 | WO2004051856A3 Digitally filtered pulse width modulation |
| 06/09/2005 | US20050123072 Method and apparatus to implement DC offset correction in a sigma delta converter |
| 06/09/2005 | US20050122245 Digital-to-analogue converter circuits |
| 06/09/2005 | US20050122244 Digital signal processing device and audio signal reproduction device |
| 06/09/2005 | US20050122241 Word length reduction circuit |
| 06/09/2005 | DE10351383A1 Multi bit sigma delta modulator for wireless especially mobile communication has core and feedback digital to analog and analog to digital converters with a common reference element |
| 06/09/2005 | DE10351283A1 Biomedical superelastic titanium-based alloy for medical guide wire, orthodontic wire, stent, eyeglass frame or nose pad arm of eyeglass, or actuator of endoscope, contains niobium for stabilizing beta-phase of titanium |
| 06/09/2005 | DE10331572B4 Sigma-Delta-Wandleranordnung Sigma-delta converter arrangement |
| 06/08/2005 | EP1538752A1 Clock pulse generator apparatus with reduced jitter clock phase |
| 06/08/2005 | CN1625064A Band pass sampling receiver and its sampling method |
| 06/08/2005 | CN1625063A Band pass sampling receiver and its sampling method |
| 06/08/2005 | CN1625056A Digital-to-analogue converter circuits |
| 06/08/2005 | CN1625055A Word length reduction circuit |
| 06/08/2005 | CN1205753C Integrated audio mixer |
| 06/07/2005 | US6903672 Apparatus for and method of performing an analog to digital conversion |
| 06/07/2005 | US6903603 Phase detection circuit and receiver |
| 06/02/2005 | US20050116850 Continuous time fourth order delta sigma analog-to-digital converter |
| 06/02/2005 | US20050116849 Feedback steering delta-sigma modulators and systems using the same |
| 06/02/2005 | DE102004005138A1 Verfahren zur Digital/Analog-Wandlung und entsprechende Digital/Analog-Wandlervorrichtung A method for digital / analog conversion and corresponding digital / analog converter device |
| 06/01/2005 | EP1536565A1 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 |
| 06/01/2005 | EP1356592B1 Sigma-delta modulator for digitizing analog high frequency signals |
| 05/31/2005 | US6901355 Method for correcting non-linearities of an output signal of an electrical component, particularly a measuring transducer |
| 05/31/2005 | US6900752 Stepwise zero-data-detection mute circuit |
| 05/26/2005 | WO2005048458A1 Binary delta-sigma modulator |
| 05/26/2005 | WO2005048457A2 Delta-sigma digital-to-analog converter assembly |
| 05/26/2005 | WO2005048456A2 Multi-level pulse width modulation in digital system |
| 05/26/2005 | WO2004094965A3 Noise-shapers and filters with noise shaping quantizers and systems and methods using the same |
| 05/26/2005 | WO2004025398A3 Sigma-delta adc |
| 05/26/2005 | US20050110667 Method and apparatus for converting PCM to PWM |
| 05/26/2005 | US20050110664 Suppressing digital-to-analog converter (DAC) error |
| 05/25/2005 | CN1620759A Repeat sampling method for A/D and D/A converter |
| 05/25/2005 | CN1203450C Method and device for determining interpolated intermediate values of sampled signal |
| 05/24/2005 | US6898534 DC measurement method and system using sigma-delta modulation pattern |
| 05/24/2005 | US6897799 Current parking return to zero digital-to-analog converter |
| 05/24/2005 | US6897796 Sigma-delta converter arrangement |
| 05/19/2005 | WO2005015746A3 Variable coder apparatus for resonant power conversion and method |
| 05/19/2005 | US20050104645 Circuit for generating from low voltage edges higher voltage pulses having precise amplitudes and durations |
| 05/18/2005 | CN1618171A Circuit with a digital to analog converter |
| 05/18/2005 | CN1617455A Method and circuit for effective conversion of PCM signals into PWM signals |
| 05/18/2005 | CN1617093A Adding circuit suitable for sigma-delta modulator circuits |
| 05/17/2005 | US6894632 Programmable analog-to-digital converter |
| 05/12/2005 | WO2005043764A1 Delta-sigma analog-to-digital converter |
| 05/12/2005 | WO2005043763A1 Frequency agile exciter |
| 05/12/2005 | US20050099327 Delta-sigma digital-to-analog converter assembly |
| 05/11/2005 | CN1615588A Method and apparatus for generating a pulse width modulated signal |
| 05/11/2005 | CN1201495C Radio receiver |
| 05/10/2005 | US6891488 Sigma-delta conversion with analog, nonvolatile trimmed quantized feedback |
| 05/10/2005 | US6891430 Techniques for signal measurement using a conditionally stable amplifier |
| 05/06/2005 | WO2005008906A3 Multiplexed-input-separated sigma-delta analog-to-digital converter design for pixel-level analog-to-digital conversion |
| 05/05/2005 | US20050093732 Semi-conductor circuit arrangement |
| 05/05/2005 | US20050093728 Adding circuit suitable for sigma-delta modulator circuits |
| 05/05/2005 | US20050093726 Analog-to-digital conversion system with second order noise shaping and a single amplifier |
| 05/05/2005 | US20050093725 Sigma-delta conversion with analog, nonvolatile trimmed quantized feedback |
| 05/05/2005 | US20050092898 Semiconductor integrated circuit device and imaging system |
| 05/04/2005 | CN1612485A Delta sigma modulating apparatus |
| 05/04/2005 | CN1612484A Sampling frequency automatic detector for audio D-A converter and its use method |
| 05/03/2005 | US6889184 Device for improving voice signal in quality |
| 05/03/2005 | US6888485 Digital-analog converter |
| 05/03/2005 | US6888484 Stable high-order delta-sigma error feedback modulators, and noise transfer functions for use in such modulators |
| 05/03/2005 | US6888358 Sensor and sigma-delta converter |
| 05/03/2005 | US6888331 Commutation of sensorless direct-current motors |
| 04/28/2005 | US20050088328 Variable-order delta sigma modulator and DA converter |
| 04/28/2005 | US20050088327 Delta sigma modulating apparatus |
| 04/28/2005 | US20050088326 Broadband sigma-delta modulator |
| 04/27/2005 | CN1611006A Transmitter having a Sigma-Delta modulator with a non-uniform polar quantizer and methods thereof |
| 04/26/2005 | US6885330 Data converters with ternary pulse width modulation output stages and methods and systems using the same |
| 04/26/2005 | US6885327 Adaptive sigma-delta modulation |
| 04/26/2005 | US6885326 Accumulator for adaptive Σ-Δ modulation |
| 04/21/2005 | WO2005036756A1 Generating bit-streams with higher compression gains |
| 04/21/2005 | WO2005036533A2 Systems and methods for sound compression |
| 04/21/2005 | US20050085194 Frequency agile exciter |
| 04/21/2005 | US20050083220 Pipelined delta sigma modulator analog to digital converter |
| 04/20/2005 | EP1479169A4 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 |
| 04/20/2005 | CN1607728A Method and apparatus for transformation from impulse code modulation to impulse-width modulation |
| 04/19/2005 | US6882861 Wireless user terminal and system having signal clipping circuit for switched capacitor sigma delta analog to digital converters |
| 04/19/2005 | US6880262 Continuous time ΔΣ ADC with dithering |
| 04/14/2005 | WO2005034359A1 Multi-phase measurement system with synchronized sigma delta converters |
| 04/14/2005 | WO2005033925A1 Generation of thermal agitation noise according to a predetermined histogram |
| 04/14/2005 | WO2004068727A3 Interference cancellation system employing photonic sigma delta modulation and optical true time delay |
| 04/14/2005 | US20050080618 Systems and methods for sound compression |
| 04/14/2005 | US20050078023 Analog signal outputting circuit and multi-level delta-sigma modulator employing the analog signal outputting circuit |
| 04/14/2005 | US20050078022 Superconducting circuit |
| 04/14/2005 | DE10342056A1 Addition circuit for signals at input of quantising circuit, e.g. sigma-delta modulator circuit, such as used in wideband data transmission systems, comprising storage capacitors and switch |
| 04/14/2005 | CA2541315A1 Generation of thermal agitation noise according to a predetermined histogram |
| 04/13/2005 | EP1522147A1 Sigma delta modulator |
| 04/13/2005 | EP1522145A1 Multi-bit delta-sigma analog-to-digital converter with error shaping |
| 04/13/2005 | CN1606240A Analog signal outputting circuit and multi-level delta-sigma modulator employing the analog signal outputting circuit |
| 04/13/2005 | CN1197239C Amplifier circuit and method of control thereof |
| 04/12/2005 | US6879275 Signal processing with a look-ahead modulator having time weighted error values |
| 04/12/2005 | US6879273 Oversampling in analog/digital and digital/analog converters |