| Patents for H03M 3 - Conversion of analogue values to or from differential modulation (7,070) |
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| 08/23/2005 | US6933871 Feedback steering delta-sigma modulators and systems using the same |
| 08/23/2005 | US6933870 Method and apparatus for efficient mixed signal processing in a digital amplifier |
| 08/23/2005 | US6933778 Method and apparatus for efficient mixed signal processing in a digital amplifier |
| 08/18/2005 | WO2005036533A3 Systems and methods for sound compression |
| 08/18/2005 | US20050179574 Method and system for a multi-rate analog finite impulse response filter |
| 08/18/2005 | US20050179573 Buffered oversampling analog-to-digital converter with improved dc offset performance |
| 08/18/2005 | US20050179487 Switching power amplifier using a frequency translating delta sigma modulator |
| 08/17/2005 | EP1564891A2 Variable, adaptive quantization in sigma-delta modualtors |
| 08/17/2005 | EP1563852A1 Compounds which can be used to diagnose and monitor diseases associated with the formation of amyloid protein fibrils |
| 08/17/2005 | EP1506618A4 Delta-sigma modulators with integral digital low - pass filtering |
| 08/17/2005 | CN1656687A Sigma delta A/D converter with pseudo flash converter |
| 08/17/2005 | CN1215664C Analog filter |
| 08/16/2005 | US6931241 Dual digital low IF complex receiver |
| 08/16/2005 | US6930625 Multi-thread parallel processing sigma-delta ADC |
| 08/16/2005 | US6930624 Continuous time fourth order delta sigma analog-to-digital converter |
| 08/11/2005 | WO2005074142A1 Look-ahead delta sigma modulator with quantization using natural pattern loop filter responses |
| 08/11/2005 | WO2005074141A1 Signal processing with look-ahead modulator noise quantization minimization |
| 08/11/2005 | WO2005074140A1 Jointly nonlinear delta sigma modulators |
| 08/11/2005 | WO2005074139A2 A da-converter system and a method for converting a multi-bit digital signal to an analog signal |
| 08/11/2005 | WO2004098062A3 Combined digital-to-analog converter and signal filter |
| 08/11/2005 | US20050174273 Ic with built-in self-test and design method thereof |
| 08/10/2005 | CN1653696A Digital-analog converter |
| 08/10/2005 | CN1653695A High precision analog to digital converter |
| 08/09/2005 | US6927722 Series capacitive component for switched-capacitor circuits consisting of series-connected capacitors |
| 08/09/2005 | US6927720 Analog signal outputting circuit and multi-level delta-sigma modulator employing the analog signal outputting circuit |
| 08/09/2005 | US6927718 Circuit arrangement and method for reducing an alignment error in a Σ-Δ modulator |
| 08/09/2005 | US6927717 Buffered oversampling analog-to-digital converter with improved DC offset performance |
| 08/09/2005 | US6927716 Variable modulus interpolator, and a variable frequency synthesizer incorporating the variable modulus interpolator |
| 08/04/2005 | WO2005071846A1 Signal processing with a look-ahead modulator having time weighted error values |
| 08/04/2005 | WO2005071845A1 Programmable analog-to-digital converter |
| 08/04/2005 | US20050168365 Switching arrangement and DAC mismatch shaper using the same |
| 08/03/2005 | EP1560337A1 Analog-to-digital converter comprising a sigma-delta modulator |
| 08/03/2005 | CN1650525A Sigma-delta analog-to-digital converter and method |
| 08/03/2005 | CN1213307C Sigma-delta multiplier circuit for power measurement equipment |
| 08/02/2005 | US6924760 Highly accurate switched capacitor DAC |
| 08/02/2005 | US6924757 Sigma-delta modulator with reduced switching rate for use in class-D amplification |
| 08/02/2005 | US6924756 Method and system for processing a digital signal |
| 07/28/2005 | US20050163232 Variable coder apparatus for resonant power conversion and method |
| 07/28/2005 | US20050162887 Digital signal processing device, a method and a delta-sigma modulator using the same method |
| 07/28/2005 | US20050162297 Accumulator for adaptive sigma-delta modulation |
| 07/28/2005 | US20050162296 Method and circuit for reducing quantizer input/output swing in a sigma-delta modulator |
| 07/28/2005 | US20050162295 Analog-to-digital converter comprising a sigma-delta modulator |
| 07/28/2005 | US20050162286 Pattern biasing for look-ahead delta sigma modulators |
| 07/28/2005 | US20050162285 Look-ahead delta sigma modulator with pruning of output candidate vectors using quantization error minimization pruning techniques |
| 07/27/2005 | EP1557953A1 Digital signal processing device and audio signal reproduction device |
| 07/27/2005 | CN1647095A Operational amplifier integrator |
| 07/26/2005 | US6922161 Delta-Sigma modulator for reducing quantization noise and oversampling ratio (OSR) |
| 07/21/2005 | WO2005048456A3 Multi-level pulse width modulation in digital system |
| 07/21/2005 | US20050160124 Filter enabling decimation of digital signals by a rational factor |
| 07/21/2005 | US20050156772 Look-ahead delta sigma modulators with quantizer input approximations |
| 07/21/2005 | US20050156771 Look-ahead delta sigma modulator having an infinite impulse response filter with multiple look-ahead outputs |
| 07/21/2005 | US20050156770 Jointly nonlinear delta sigma modulators |
| 07/21/2005 | US20050156769 Reduced chop rate analog to digital converter system and method |
| 07/21/2005 | US20050156768 Look-ahead delta sigma modulator with quantization using natural and pattern loop filter responses |
| 07/21/2005 | US20050156767 Multiple non-monotonic quantizer regions for noise shaping |
| 07/21/2005 | US20050156766 Signal processing with look-ahead modulator noise quantization minimization |
| 07/21/2005 | US20050156764 Clocked DAC current switch |
| 07/21/2005 | US20050156625 Asynchronus sampling rate conversion |
| 07/21/2005 | DE20380325U1 Übertragungsanordnung zur Übertragung von Signalen und D/A-Umsetzerschaltungen hierfür Transmitting device for transmitting signals and D / A converter circuits therefor |
| 07/20/2005 | EP1504532A4 High precision analog to digital converter |
| 07/20/2005 | CN1643975A Digital microphone |
| 07/20/2005 | CN1643797A Multi-rate analog-to-digital converter |
| 07/20/2005 | CN1642015A Digital-to-analog converter arrangement |
| 07/20/2005 | CN1212045C High eficiency audio frequency transmission channel |
| 07/19/2005 | US6920182 Delta-sigma modulator system and method |
| 07/19/2005 | US6919832 Methods and systems for high speed quantizers |
| 07/14/2005 | WO2005048457A3 Delta-sigma digital-to-analog converter assembly |
| 07/13/2005 | CN1639983A Method and device for reducing a dataset consisting of process data to be transmitted |
| 07/13/2005 | CN1210923C Apparatus for reducing DC offset in receiver |
| 07/13/2005 | CN1210870C Sigma-delta A/D converter |
| 07/12/2005 | US6917324 Signal processor and apparatus and method for testing same |
| 07/12/2005 | US6917318 Analog to digital converter that services voice communications |
| 07/12/2005 | US6917317 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 |
| 07/07/2005 | US20050146453 Continuous time delta sigma ADC with dithering |
| 07/06/2005 | EP1550223A1 Sigma-delta modulation |
| 07/06/2005 | EP1550222A1 Controlled power source, in particular for a digital/analogue converter in continuous time sigma/delta modulators |
| 07/06/2005 | EP1550221A1 Delta - sigma modulators with improved noise performance |
| 07/06/2005 | CN1636323A Sigma－delta A/D转换器 Sigma-delta A / D converter |
| 07/05/2005 | US6914549 Reconfigurable analog-to-digital converter |
| 07/05/2005 | US6914546 Device and method of digital gain programming using sigma-delta modulator |
| 06/30/2005 | US20050140533 Circuit with a digital to analog converter |
| 06/29/2005 | EP1547251A2 Full bridge integral noise shaping for quantization of pulse width modulation signals |
| 06/29/2005 | EP1547250A1 Method and system of integrating a mismatch noise shaper into the main loop of a delta-sigma modulator |
| 06/28/2005 | US6911928 Bandpass sigma-delta modulator and uses of the sigma delta modulator for conversion, detection and production of signals |
| 06/28/2005 | US6911927 Over-sampling digital-to-analog converter with variable sampling frequencies |
| 06/23/2005 | WO2005057793A1 Delta-sigma type fraction division pll synthesizer |
| 06/23/2005 | US20050134492 Hardware-efficient implementation of dynamic element matching in sigma-delta DAC's |
| 06/23/2005 | US20050134491 Digital expander apparatus and method for generating multiple analog control signals particularly useful for controlling an oscillator |
| 06/23/2005 | US20050134490 Plural channel analog-to-digital converter, method and meter employing an input channel with a predetermined direct current bias |
| 06/23/2005 | DE10351384A1 Multi-bit SDM with successive approximation core ADC, e.g. for mobile communications, uses reference DAC in core-ADC and as feedback-DAC of modulator |
| 06/22/2005 | EP1545009A2 Plural channel analog-to-digital converter, method and meter employing an input channel with a predetermined direct current bias |
| 06/22/2005 | EP1543623A2 Noise shapers with shared and independent filters and multiple quantizers and data converters |
| 06/22/2005 | CN1630983A Electronic circuit with a sigma delta a/d converter |
| 06/21/2005 | US6909754 Method and quadrature device for compensating mismatch in parallel paths by switching signals therein |
| 06/21/2005 | US6909394 Quantizer for a sigma delta modulator, and sigma delta modulator |
| 06/21/2005 | US6909388 Fractal sequencing schemes for offset cancellation in sampled data acquisition systems |
| 06/18/2005 | CA2490304A1 Plural channel analog-to-digital converter, method and meter employing an input channel with a predetermined direct current bias |
| 06/16/2005 | WO2005055449A1 Bandpass sampling receiver and the sampling method |
| 06/16/2005 | WO2005055448A1 New receiver architecture for wireless communication |
| 06/16/2005 | US20050128115 Loop filter for a continuous time sigma delta analog to digital converter |