| Patents for H03M 3 - Conversion of analogue values to or from differential modulation (7,070) |
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| 09/08/2004 | CN1166066C Sigma-delta modulator and method for signal digitizing |
| 09/08/2004 | CN1165908C Method and device for processing digital signal |
| 09/07/2004 | US6788233 Digital decimation filter |
| 09/07/2004 | US6788232 Sigma delta modulator |
| 09/02/2004 | WO2004051860A3 Transmission configuration for transmitting signals and d/a converter circuits therefor |
| 09/02/2004 | US20040169596 Higher order sigma-delta analog-to-digital converter based on finite impulse response filter |
| 09/02/2004 | US20040169437 Band-pass sigma-delta modulator and uses of sigma delta modulator for converting, detecting and producing signals |
| 09/01/2004 | EP1453231A1 Voice-coding-and-transmission system |
| 09/01/2004 | EP1453206A1 Switching DAC pulse encoding circuit |
| 08/31/2004 | US6784116 Fabrication process of a semiconductor integrated circuit device |
| 08/26/2004 | WO2004042932A3 Converter, circuit and method for compensation of non-idealities in continuous time sigma delta converters |
| 08/26/2004 | US20040164887 Switching dac pulse encoding circuit |
| 08/26/2004 | US20040164809 Fractional-N frequency synthesizer with cascaded sigma-delta converters |
| 08/25/2004 | EP1450490A1 An analog-to-digital converter with correction of offset errors |
| 08/25/2004 | EP1450289A1 Analog Divider Circuit and Method |
| 08/25/2004 | EP1449304A1 Sigma-delta modulation |
| 08/25/2004 | CN1524347A Sigma-delta modulator for digitizing analog high frequency signals |
| 08/25/2004 | CN1524346A Method and arrangement for synchronizing a sigma-delta-modulator |
| 08/25/2004 | CN1164035C Sampling rate converter |
| 08/24/2004 | US6781534 System and method for divisor threshold control in a modulation domain divider |
| 08/24/2004 | US6781533 Optically sampled delta-sigma modulator |
| 08/24/2004 | US6781107 Semiconductor integrated circuit device and imaging system |
| 08/19/2004 | US20040162045 Power amplification device, especially with reduced input dynamic swing, in particular for a cellular mobile telephone |
| 08/19/2004 | US20040160348 Variable, adaptive quantization in sigma-delta modulators |
| 08/19/2004 | US20040160347 H-bridge common-mode noise reduction circuit |
| 08/18/2004 | EP1447912A1 Method and apparatus for adaptively compensating for an inaccuracy in an analog-to-digital converter |
| 08/18/2004 | EP1446868A1 Commutation of sensorless direct-current motors |
| 08/18/2004 | CN1522039A Extending mobile phone networks |
| 08/18/2004 | CN1162975C Oversampling processing circuit and D-A converter |
| 08/17/2004 | US6778116 Switching DAC pulse encoding circuit |
| 08/12/2004 | WO2004068727A2 Interference cancellation system employing photonic sigma delta modulation and optical true time delay |
| 08/11/2004 | EP1445928A2 Routing in bridged mobile phone networks |
| 08/11/2004 | CN1520639A Multi-level quantizer with current mode. DEM switch matrices and separate DEM decision logic for multibit sigma delta modulator |
| 08/11/2004 | CN1161938C Reproducer |
| 08/10/2004 | US6774832 Multi-bit output DDS with real time delta sigma modulation look up from memory |
| 08/10/2004 | US6774830 Methods and systems for digital dither |
| 08/10/2004 | CA2456816A1 Extending mobile phone networks |
| 08/10/2004 | CA2222220C Method and apparatus for multiplexed oversampled analog to digital modulation |
| 08/05/2004 | WO2004066642A2 Signal processing system with baseband noise modulation chopper circuit timing to reduce noise |
| 08/05/2004 | WO2004066540A2 Signal processing system with baseband noise modulation and noise fold back reduction |
| 08/05/2004 | WO2004064485A2 Signal processing system with baseband noise modulation and noise filtering |
| 08/05/2004 | US20040150543 Hardware-efficient implementation of dynamic element matching in sigma-delta dac's |
| 08/04/2004 | EP1442526A1 Method and arrangement for sample-rate conversion |
| 08/04/2004 | EP1442525A2 Pipeline ad converter |
| 08/04/2004 | EP1382124B1 Band-pass sigma-delta modulator and use of sigma-delta modulator for converting, detecting and producing signals |
| 08/04/2004 | EP1116333B1 Correction of nonlinear output distortion in a delta sigma dac |
| 08/04/2004 | CN1518794A Fractional decimation filter using oversampled data |
| 08/04/2004 | CN1160866C Oversampling circuit and digital/analog converter |
| 08/03/2004 | US6771198 Method and apparatus for converting between analog and digital domains using frequency interleaving |
| 07/29/2004 | WO2004030211A3 Circuit configuration for averaging |
| 07/29/2004 | US20040146237 Interference cancellation system employing photonic sigma delta modulation and optical true time delay |
| 07/29/2004 | US20040145508 Reconfigurable analog-to-digital converter |
| 07/29/2004 | US20040145504 Quantizer for a sigma delta modulator, and sigma delta modulator |
| 07/29/2004 | DE10302635A1 Analog to digital converter and signal conversion process has digital filter with a memory for intermediate storage of digital signals |
| 07/28/2004 | EP1441447A1 D/a converter and output amplifying circuit |
| 07/28/2004 | CN1516179A 再现装置和信号处理装置 Reproducing means and the signal processing means |
| 07/27/2004 | US6768443 Switch capacitor circuit and applications thereof |
| 07/27/2004 | US6768437 Switched voltage-mode dither signal generation for a sigma-delta modulator |
| 07/27/2004 | US6768436 Method and circuit resetting delta sigma modulator |
| 07/27/2004 | US6768435 Bandpass sigma-delta modulator |
| 07/22/2004 | US20040141562 Signal processing system with baseband noise modulaltion chopper circuit timing to reduce noise |
| 07/22/2004 | US20040141558 Signal processing system with baseband noise modulation and noise fold back reduction |
| 07/22/2004 | US20040140922 Signal processing system with baseband noise modulation and noise filtering |
| 07/21/2004 | CN1158772C Oversampling circuit and digital/analog converter |
| 07/21/2004 | CN1158771C Digital/analog converter |
| 07/21/2004 | CN1158770C Digital/analog converter |
| 07/20/2004 | US6765520 Method and circuit for jamming digital filter while resetting delta sigma modulator |
| 07/20/2004 | US6765519 System and method for designing and using analog circuits operating in the modulation domain |
| 07/20/2004 | US6765518 Method and apparatus for efficient mixed signal processing in a digital amplifier |
| 07/20/2004 | US6765517 Variable order sigma-delta modulator |
| 07/20/2004 | CA2136237C Method and apparatus for multiplexed oversampled analog to digital modulation |
| 07/14/2004 | EP1437834A1 Power amplifier circuit, in particular with low input dynamic range, for cellular mobile phone |
| 07/14/2004 | EP1027771A4 Beamformed ultrasonic imager with delta-sigma feedback control |
| 07/13/2004 | US6762705 Controlled drive circuit for an analog driven power semiconductor |
| 07/13/2004 | US6762704 Modulation of a digital input signal using multiple digital signal modulators |
| 07/13/2004 | US6762703 Sigma delta modulator |
| 07/08/2004 | WO2004057757A1 Audio amplifier |
| 07/08/2004 | US20040131193 Audio reproducing device and method, audio amplifier, and integrated circuit for audio amplifier |
| 07/08/2004 | US20040130472 Pulse width modulation digital amplifier |
| 07/08/2004 | US20040130471 Delta-Sigma modulator for reducing quantization noise and oversampling ratio (OSR) |
| 07/08/2004 | US20040130333 Rf power measurement |
| 07/07/2004 | EP1435695A1 DELTA−SIGMA MODULATION APPARATUS AND SIGNAL AMPLIFICATION APPARATUS |
| 07/07/2004 | EP0897619B1 Switched current delta-sigma modulator |
| 07/07/2004 | CN1510561A System and method for designing and using analog circuit in modulation zone |
| 07/07/2004 | CN1156963C Stepped adjustable notch filter |
| 07/06/2004 | US6759899 Class-D amplifier with digital feedback |
| 07/01/2004 | US20040128606 Adaptive sigma-delta modulation with improved dynamic range |
| 07/01/2004 | US20040125860 Data transmission apparatus and data transmission method |
| 06/30/2004 | EP1433259A2 Adaptive sigma-delta data converter for mobile terminals |
| 06/30/2004 | CN1509519A Method and apparatus for controlling stages of multi-stage circuit |
| 06/30/2004 | CN1156144C Method and device for embedding supplemental data in an encoded signal |
| 06/24/2004 | US20040119624 System and method for divisor threshold control in a modulation domain divider |
| 06/24/2004 | US20040119623 Digital-to-analog converter |
| 06/24/2004 | US20040119622 System and method for designing and using analog circuits operating in the modulation domain |
| 06/24/2004 | US20040119619 Analog to digital converter that services voice communications |
| 06/23/2004 | CN1507159A Output wave filter for delta-sigma modulator and digital signal processor with the same output filter |
| 06/23/2004 | CN1155159C Improved structure for data compression coder, decoder and recording medium |
| 06/22/2004 | US6753799 Randomizer for sigma-delta-type converter |
| 06/17/2004 | WO2004051860A2 Transmission configuration for transmitting signals and d/a converter circuits therefor |
| 06/17/2004 | WO2004051856A2 Digitally filtered pulse width modulation |