Patents
Sitemap › H03 - Basic electronic circuitry › H03M - Coding, decoding or code conversion, in general › H03M 3 - Conversion of analogue values to or from differential modulation
Patents for H03M 3 - Conversion of analogue values to or from differential modulation (7,070)
01/2000
01/06/2000WO2000001074A2 Receiver having integrated mixer and sigma-delta analog-to-digital conversion
01/06/2000WO2000001072A1 System for generating an accurate low-noise periodic signal
01/06/2000CA2336383A1 System for generating an accurate low-noise periodic signal
01/05/2000EP0969597A2 Data sampling method and device
01/04/2000US6011501 Circuits, systems and methods for processing data in a one-bit format
12/1999
12/21/1999US6005506 Receiver with sigma-delta analog-to-digital converter for sampling a received signal
12/21/1999US6005500 Transmitter with improved analog to digital converter
12/16/1999WO1999065147A1 Over-sampling a/d, d/a converter
12/15/1999EP0964525A2 Low-noise sigma-delta analog-to-digital converter
12/15/1999EP0964524A2 Nonlinear filter correction of multibit sigma delta modulators
12/14/1999US6002353 One-bit digital signal processing
12/09/1999WO1999063660A1 Pre-recorded sigma delta values for power amplifier control
12/08/1999EP0962094A2 Embedding supplemental data in an encoded signal
12/07/1999US5999347 Method and apparatus for higher resolution audio signal transmitting
12/07/1999US5999114 Dithered digital gain scalar/summer
11/1999
11/30/1999US5995036 Passive switched capacitor delta analog-to-digital converter with programmable gain control
11/30/1999US5995030 Apparatus and method for a combination D/A converter and FIR filter employing active current division from a single current source
11/25/1999WO1999060705A1 Recursive multi-bit adc with predictor
11/23/1999US5990819 D/A converter and delta-sigma D/A converter
11/23/1999US5990818 Method and apparatus for processing sigma-delta modulated signals
11/16/1999US5986598 Sigma delta data converter with feed-forward path to stabilize integrator signal swing
11/11/1999WO1999057671A1 Method and circuit for compensating the non-linearity of capacitors
11/09/1999US5982317 Oversampled digital-to-analog converter based on nonlinear separation and linear recombination
11/09/1999US5982316 Delta-sigma modulator for an analogue-to-digital converter with only one feedback coefficient
11/09/1999US5982315 Multi-loop Σ Δ analog to digital converter
11/09/1999US5982314 Self-timed multiplier for gain compensation and reduced latency in analog to digital converters
11/09/1999US5982313 High speed sigma-delta analog-to-digital converter system
11/09/1999US5980097 Reduced complexity signal converter
11/04/1999WO1999056446A2 Video rate d/a converter with sigma-delta modulator
11/03/1999EP0954107A2 Sigma-delta modulator and digitizing method
11/03/1999EP0739549B1 Method and apparatus for calibrating a gain control circuit
11/02/1999US5977899 Digital-to-analog converter using noise-shaped segmentation
11/02/1999US5977896 Digital-to-analog converter with delta-sigma modulation
11/02/1999US5977895 Waveform shaping circuit for function circuit and high order delta sigma modulator
10/1999
10/27/1999EP0952665A2 Slope, drift and offset compensation in zero-if receivers
10/27/1999EP0951649A1 High dynamic range digital fluxgate magnetometer
10/27/1999CN1233025A Audio signal processor
10/26/1999US5974089 Method and apparatus for performance improvement by qualifying pulses in an oversampled noise-shaping signal processor
10/26/1999US5973556 Delta-modulated power supply
10/13/1999EP0948843A2 Sigma-delta modulator with improved gain accuracy
10/12/1999US5964708 Beamformed ultrasonic imager with delta-sigma feedback control
10/06/1999EP0948139A1 Stabilization of single loop sigma delta modulators of a high order
10/05/1999US5963160 Analog to digital conversion using nonuniform sample rates
09/1999
09/30/1999WO1999049578A1 Tone modulation in delta-sigma dac using square wave dither
09/28/1999US5959562 Sigma-delta modulator and method for operating such modulator
09/23/1999WO1999048202A2 Converter with programmable gain control
09/23/1999WO1999039440A3 Device for processing a digital signal
09/22/1999EP0601201B1 Waveform a/d converter and d/a converter
09/22/1999CN1229546A Arrangement and methods for generating radio frequency signal
09/16/1999WO1999046860A1 An asynchronous mode pixel-parallel sigma-delta a/d converter for cmos imagers
09/14/1999US5952947 Flexible and programmable delta-sigma analog signal converter
09/07/1999US5949361 For implementing a conversion of an input signal
09/07/1999US5949360 Analog/digital converter utilizing time-shared integrating circuitry
09/02/1999WO1999044289A1 Digital to analogue converter with dynamic element matching
09/01/1999CN1227443A Signal processors
08/1999
08/31/1999US5946402 Signal processing device for processing sound quality, and recording apparatus, reproducing apparatus and mixing apparatus provided with the signal processing device applied thereto
08/26/1999WO1999033266A3 Embedding supplemental data in an encoded signal
08/25/1999EP0938221A2 Call related information reception using sigma/delta modulation
08/25/1999CN1226968A Sigma-delta multiplier circuit for power measurement equipment
08/18/1999EP0935851A1 A digital communication device and a mixer
08/18/1999CA2229737A1 Analog to digital converter for radio applications
08/17/1999US5940019 Delta-sigma A/D converter
08/17/1999US5939881 High dynamic range digital fluxgate magnetometer
08/17/1999CA2097951C Compression and reconstruction of radiological images
08/10/1999US5936562 High-speed sigma-delta ADCs
08/10/1999US5936561 Apparatus and methods for digitally compensated multi-bit sigma-delta analog-to-digital conversion
08/05/1999WO1999039440A2 Device for processing a digital signal
08/04/1999EP0933870A2 Hybrid FIR/IIR analog filter
08/04/1999EP0932932A1 Device for amplifying digital signals
08/04/1999EP0932870A1 Mirror circuitry for noise reduction
08/03/1999US5933453 Delta-sigma pulse width modulator control circuit
07/1999
07/21/1999EP0929941A2 A method for converting an analog input signal into a digital output signal, an arrangement for performing such method and an image sensor comprising such arrangements
07/21/1999CN1223755A Switched current delta-sigma modulator
07/20/1999US5926057 Semiconductor device, circuit having the device, and correlation calculation apparatus, signal converter, and signal processing system utilizing the circuit
07/15/1999WO1999035746A1 Noise cancellation circuit and quadrature downconverter
07/06/1999US5920577 Digital signal processing method and apparatus
07/06/1999US5920273 Digital-to-analog converter
07/01/1999WO1999033266A2 Embedding supplemental data in an encoded signal
06/1999
06/29/1999US5917440 Implementing transmission zeroes in narrowband sigma-delta A/D converters
06/23/1999EP0923808A2 Analog to digital converter comprising a sigma-delta modulator
06/23/1999EP0923807A2 Synchronous sigma-delta modulator
06/23/1999EP0809882B1 Combination d/a converter and fir filter utilizing active current division and method
06/17/1999WO1999030428A1 Receiver with sigma-delta analog-to-digital converter
06/17/1999WO1999030427A1 Programmable dynamic range receiver
06/16/1999EP0922962A1 Procedure and device for sampling a reactance
06/16/1999EP0922334A2 Data compression and expansion of an n-level information signal
06/16/1999EP0752176B1 Circuit for conditioning and digitising an analogue signal
06/02/1999EP0793876B1 Variable sample rate adc
06/01/1999US5909579 Method for use in a computer system
05/1999
05/27/1999WO1999026077A1 High dynamic range digital fluxgate magnetometer
05/27/1999WO1999012264A3 Sigma-delta modulator with improved gain accuracy
05/25/1999US5907299 Analog-to digital converter with delta-sigma modulator
05/19/1999EP0916096A1 Sigma-delta multiplier circuit for power measurement equipment
05/18/1999US5905453 Dithered sigma delta modulator having programmable full scale range adjustment
05/18/1999US5905398 Capacitor array having user-adjustable, manufacturer-trimmable capacitance and method
05/12/1999EP0914728A1 Arrangements and methods for generating a radio frequency signal
05/12/1999EP0914717A2 Digital to analogue and analogue to digital converters
05/12/1999CN1043397C Circuit arrangement for averaging signals during pulse-density D/A or A/D conversion
05/04/1999US5901176 To control power delivered to a load with reduced energy generation
04/1999
04/29/1999WO1999008389A3 A digital communication device and a mixer
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